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Sigmetnow

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Re: SpaceX
« Reply #200 on: June 15, 2019, 02:25:55 AM »
Next up:  Falcon Heavy launch!  SpaceX’s most ambitious mission yet.

Quote
Emre Kelly (@EmreKelly) 6/14/19, 3:41 PM
#SpaceX Falcon Heavy STP-2 now firmly on the Eastern Range's launch calendar for Monday, June 24 @ 2330 ET / 0330 UTC +1. Liftoff from 39A, landings at LZ-1 and drone ship.
https://twitter.com/emrekelly/status/1139618957147746305
Launch hazard detail map at the link.

NASA highlights payloads on next Falcon Heavy; LZ-1 cleared for normal operations
Quote
NASA has released information regarding the U.S. space agency’s payloads that will launch on the Air Force’s STP-2 (Space Test Program -2) mission on SpaceX’s Falcon Heavy rocket later this month.
...
Falcon Heavy payloads from NASA:
In all, four NASA payloads will ride-share their way to orbit aboard the Falcon Heavy during the STP-2 mission, managed by the U.S. Air Force Space and Missile Systems Center.

The NASA payloads, four of the 24 total payloads on this mission, are designed to test a variety of technologies that the agency hopes will one day improve upon current spaceflight technologies.
The NASA payloads are: the Deep Space Atomic Clock, the Green Propellant Infusion Mission, the Space Environment Testbeds, and the Enhanced Tandem Beacon Experiment.

Deep Space Atomic Clock:
This experiment will be the world’s first ion-based atomic clock to be flown in space with the goal of dramatically improving space-based navigation via timekeeping pieces 50 times more stable than the GPS atomic clock.

To this end, the Deep Space Atomic Clock (DSAC) is built to maintain timekeeping accuracy to within one second over 9 million years.
First and foremost, this experiment seeks to demonstrate an atomic clock’s operation in Low Earth Orbit to validate the functionality of the device as well as test its capabilities for future applications on deep space missions. …
https://www.nasaspaceflight.com/2019/06/nasa-payloads-next-falcon-heavy-lz-1/
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ArcticMelt2

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Re: SpaceX
« Reply #201 on: June 15, 2019, 06:35:36 PM »
https://www.reddit.com/r/Starlink/comments/c0jzd0/starlink_orbit_raising_continues_some_past_data/

Quote
Updated plot with Friday data (OP plot is based on Thursday data). If you believe NORAD two satellites are now at 552 km and one at 549.5 km. Although looking at the plot you can hardly trust the accuracy of the data. I removed clearly wrong data at day 154 from my plot.



Quote
Friday afternoon update. One of the satellites is going to the Moon.


Sigmetnow

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Re: SpaceX
« Reply #202 on: June 20, 2019, 01:36:30 PM »
Quote
SpaceX (@SpaceX) 6/20/19, 12:52 AM
Static fire of Falcon Heavy complete—targeting June 24 launch of STP-2 from Launch Complex 39A in Florida → https://www.spacex.com/stp-2
https://twitter.com/spacex/status/1141569552330870784
Quote
Elon Musk (@elonmusk) 6/19/19, 11:59 AM
This will be our most difficult launch ever
https://twitter.com/elonmusk/status/1141375028321062912

The how and why of a SpaceX static fire event:
SpaceX fires Falcon Heavy’s 27 booster engines ahead of “most difficult launch ever”
https://www.teslarati.com/spacex-falcon-heavy-static-fire-most-difficult-launch-ever/

Why this mission stands out:
A SpaceX surprise: Falcon Heavy booster landing to smash distance record
https://www.teslarati.com/spacex-surprise-falcon-heavy-booster-landing-distance-record/
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ArcticMelt2

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Re: SpaceX
« Reply #203 on: June 20, 2019, 02:10:42 PM »
Quote
Elon Musk (@elonmusk) 6/19/19, 11:59 AM
This will be our most difficult launch ever
https://twitter.com/elonmusk/status/1141375028321062912

Why this mission stands out:
A SpaceX surprise: Falcon Heavy booster landing to smash distance record
https://www.teslarati.com/spacex-surprise-falcon-heavy-booster-landing-distance-record/

They are gradually increasing the power of this rocket. In the first launch the ship was in 505 km from the launch site, in the second launch of 967 km, in the third launch will be 1245 km.

This is testing the maximum capabilities of this rocket. In the future, they will need to build two additional ships so that the first steps land at 500 km from the launch site. Then this reusable rocket will load 30 tons into low-Earth orbit.

This will be a significant success in the field of space colonization.

Sigmetnow

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Re: SpaceX
« Reply #204 on: June 20, 2019, 07:42:11 PM »
Station mission planning reveals new target Commercial Crew launch dates
https://www.nasaspaceflight.com/2019/06/station-planning-new-crew-launch-dates/

TL;DR:  SpaceX’s first crewed mission to the ISS (DM-2) is now tentatively planned for 15 November 2019. 
Boeing’s uncrewed demo flight to the ISS is planned for 15 Sept 2019, and their first crewed mission 30 November 2019.

Article discusses US astronauts on future Soyuz flights; crew rotations; and future cargo contracts.
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Sigmetnow

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Re: SpaceX
« Reply #205 on: June 24, 2019, 06:38:47 PM »
Falcon Heavy Launch tonight!
June 24/25   Falcon Heavy • STP-2
Launch window: 0330-0730 GMT on 25th (11:30 p.m.-3:30 a.m. EDT on 24th/25th)
Launch site: LC-39A, Kennedy Space Center, Florida
A SpaceX Falcon Heavy rocket will launch the U.S. Air Force’s Space Test Program-2 mission with a cluster of military and scientific research satellites. The heavy-lift rocket is formed of three Falcon 9 rocket cores strapped together with 27 Merlin 1D engines firing at liftoff.
Quote
On its third flight Monday night, SpaceX’s Falcon Heavy rocket will fly to three different orbits with two dozen spacecraft on a mission set to last more than six hours, prompting SpaceX founder Elon Musk to declare it the company’s “most difficult launch ever.”
https://spaceflightnow.com/2019/06/23/falcon-heavy-to-flex-muscles-on-demanding-demo-launch-for-u-s-air-force/


————  SpaceX Starship: Raptor engine update
Elon Musk:
Quote
[Raptor engine #6] almost done. Aiming for an engine every 12 hours by end of year.

Since Raptor produces 200 tons of force, cost per ton would be $1000. However, Raptor is designed for ~1000 flights with negligible maintenance, so cost per ton over time would actually be ~$1.
https://twitter.com/elonmusk/status/1143040289587814400

Quote
Edit: more:

Elon Musk (@elonmusk) 6/24/19, 8:07 AM Other rocket engines were designed for no (or almost no) reuse. Raptor is designed for heavy & immediate reuse, like an aircraft jet engine, with inspections required only after many flights, assuming instrumentation shows it good. Using hydrostatic bearings certainly helps.
https://twitter.com/elonmusk/status/1143128635525799936
< How many flights is the Merlin actually good for with no major refurbishment now that you’ve reflown it so many times? Is the bearing the limiting factor? Or is it the coking?
Elon Musk (@elonmusk)6/24/19, 12:33 PM
Merlin could probably do 1000 flights too. Turbine blade fatigue cracking would require periodic weld repair or replacement. Probably some seals & bearings as well. Coking not really an issue.
https://twitter.com/elonmusk/status/1143195449425321984

Elon Musk Teases Rapid, Cheap Raptor Production to Get to Mars Fast   
https://www.inverse.com/article/56999-spacex-elon-musk-teases-rapid-cheap-raptor-production-to-get-to-mars-fast

———-
Photos below:
Quote
Space Coast Life (@SpaceCoast_Life) 6/22/19, 2:42 PM
New photo of Starship orbital on east coast, Cocoa,Fl. Looking like a sleek bullet. Photos taken by ?
https://twitter.com/spacecoast_life/status/1142503126076928000
Photo below.

Falcon Heavy photo:
https://twitter.com/_tomcross_/status/1140356115454029824
« Last Edit: June 25, 2019, 01:22:18 AM by Sigmetnow »
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Sigmetnow

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Re: SpaceX
« Reply #206 on: June 30, 2019, 12:48:38 AM »
SpaceX completes most-challenging flight with Falcon Heavy’s STP-2 mission
Quote
After years of payload preparation, SpaceX’s Falcon Heavy rocket launched one of the company’s most-challenging missions to date.  Space Test Program 2 (STP-2), a U.S. Air Force contracted flight with 24 government and civilian testbed payloads, launch within at 4-hour launch window from LC-39A at the Kennedy Space Center, Florida.
The launch window opened at 23:30 EDT on Monday, 24 June (03:30 UTC on Tuesday 25 June), although the T-0 moved to 02:30 EDT – 3 hours into the window.  After liftoff, the Falcon Heavy’s second stage spent roughly 3.5 hours performing 20 deployments of 24 satellites into various orbits and various orbital inclinations.

Falcon Heavy: A unique mission
STP-2 is a one-of-a-kind mission for SpaceX and the Falcon Heavy rocket.  The triple-booster rocket – the world’s most powerful currently-operational rocket – blasted off under 5.1 million lbf of thrust from Pad 39A in Florida and flew due east out over the Atlantic Ocean.
Launching a remarkably lightweight payload of just 3,700 kg, the Falcon Heavy – at a glance – seemed wildly overpowered for launching a mission of this class into orbit.  However, part of the flight required the second stage to re-ignite three times to radically alter the vehicle’s orbit for the various payload deployments….
https://www.nasaspaceflight.com/2019/06/spacex-falcon-heavys-stp-2-mission/

Although this mission was contracted by the Air Force (in large part to confirm the Falcon Heavy capabilities), the two dozen satellites that were deployed came from customers as varied as universities, NOAA, high school-designed cubesats, and the Planetary Society’s crowd-funded LightSail project:
Quote
Thomas Burghardt (@TGMetsFan98) 6/26/19, 11:16 AM
Updated #STP2 payload manifest. It turns out that the Prometheus payload was not removed from the mission, and that there was an unannounced DOTSI payload. Counting DSX as 1 satellite instead of 3 still results in a total of 24 satellites.
https://twitter.com/tgmetsfan98/status/1143900904720084992
Image of Manifest below.

———
A video of the entire mission webcast is available at SpaceX.com

Watch a 13-minute video replay of the Falcon Heavy’s first night launch – Spaceflight Now
https://spaceflightnow.com/2019/06/25/watch-a-video-replay-of-the-falcon-heavys-first-night-launch/
From the SpaceX webcast

THUNDEROUS TWIN SONIC BOOM AUDIO!
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Michael Seeley (@Mike_Seeley) 6/25/19, 1:45 PM
Boom (x4) and rumble: This is what the #SpaceX #STP2 #FalconHeavy side booster landings sounded like from 2.4 miles away.
The video is maybe 4/10, but the audio = wow, just wow.
Congratulations to @elonmusk & the @SpaceX team; this is incredible.
(Clip: me / @WeReportSpace) pic.twitter.com/XL9IFuEtTK
https://twitter.com/mike_seeley/status/1143576053488803844
45-second video/audio.

———
For failure junkies: why the center core went flame-y end sideways just before landing in the ocean near the autonomous drone ship:
(Elon had previously suggested this record-shattering height/speed/force landing attempt had perhaps a 50% chance of a success.)
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Everyday Astronaut (@Erdayastronaut) 6/25/19, 2:50 AM
Falcon Heavy Center core curse continues... It looks to me like it full blown took off sideways... which MIGHT mean one of the outer engines could have shut down early and then pitched it over sideways... is that correct @elonmusk ? Next time!!!
https://twitter.com/erdayastronaut/status/1143411098131017728
Elon Musk (@elonmusk) 6/25/19, 3:12 AM
@Erdayastronaut Center core RUD. It was a long shot.
https://twitter.com/elonmusk/status/1143416587418066944
< Those poor titanium grid fins.
EM: I know … sigh. Those are truly a work of art.
< Elon do you know what went wrong?
EM: High entry force & heat breached engine bay & center engine TVC failed
EvdayA: And did the computer know that and know to divert?!?! :o :o :o
EM: Most likely. It is programmed to do so.

Reddit thread: Center core landing GIF - spacex
https://www.reddit.com/r/spacex/comments/c57vsw/center_core_landing_gif/
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Sigmetnow

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Re: SpaceX
« Reply #207 on: June 30, 2019, 12:52:38 AM »
Starlink update:
Quote
Tyler Gray (@TylerG1998) 6/28/19, 4:05 PM
Official update on #Starlink from @SpaceX. 57/60 satellites are healthy and communicating, and 45 of these have made it to their operational orbits. 5 Starlinks (2 healthy ones and the 3 not-so-healthy ones) will be deorbited, leaving 55 sats in orbit when it’s all done.
https://twitter.com/tylerg1998/status/1144698427944710144
Text image below.
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Sigmetnow

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Re: SpaceX
« Reply #208 on: June 30, 2019, 01:02:34 AM »
Already lining up customers for Starship for as soon as 2021! :o

Quote
Summary:
   •   3 telecoms companies currently in discussion about launching on Starship.
   •   Starship can launch 20 tons to GTO.
   •   Starship + Super Heavy launch potentially by end of 2020, commercial operations in 2021.
   •   Flight proven boosters cost $50 million, reducing in future.
   •   SpaceX will offer to capture and return satellites.
   •   F9 2nd stage reuse abandoned due to payload reduction.
   •   Aim to reuse a Falcon 9 stage five times by end of year.

SpaceX targets 2021 commercial Starship launch
Quote
JAKARTA, Indonesia — The first commercial mission for SpaceX’s Starship and Super Heavy launch system will likely take place in 2021, a company executive said June 26.

Jonathan Hofeller, SpaceX’s vice president of commercial sales, said the company is in talks with prospective customers for the first commercial launch of that system roughly two years from now.
“We are in discussions with three different customers as we speak right now to be that first mission,” Hofeller said at the APSAT conference here. “Those are all telecom companies.”

SpaceX’s Super Heavy booster and Starship upper stage are being designed to launch up to 20 metric tons to geostationary transfer orbit, Hofeller said, or more than 100 metric tons to low Earth orbit. Equipped with a nine-meter payload fairing, the launch system is designed to carry crew and resources to the moon and Mars, but is also SpaceX’s next vehicle to send satellites into orbit around the Earth and elsewhere.  ...
https://spacenews.com/spacex-targets-2021-commercial-starship-launch/

Reddit discussion:  https://www.reddit.com/r/spacex/comments/c6nyvn/spacex_targets_2021_commercial_starship_launch/
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Sigmetnow

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Re: SpaceX
« Reply #209 on: July 06, 2019, 12:56:05 AM »
So you want to build a starship….

SpaceX has a new job posting for “Launch Engineer, Starship Operations” at Cape Canaveral.

Launch Engineer, Starship Operations
Cape Canaveral, FL, United States
Quote
SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.

LAUNCH ENGINEER (STARSHIP OPERATIONS)
The Cape Starship Operations Engineer plays a critical role, and is responsible for design, build, and operations for Starship and Super Heavy vehicle development and initial launch capability from Launch Pad 39A. Engineers will be working in multiple disciplines: fluids, structures, instrumentation, civil, and manufacturing. ...
https://boards.greenhouse.io/spacex/jobs/4342965002?gh_jid=4342965002
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ArcticMelt2

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Re: SpaceX
« Reply #210 on: July 06, 2019, 09:46:32 PM »
Already lining up customers for Starship for as soon as 2021! :o

Quote
Summary:
   •   3 telecoms companies currently in discussion about launching on Starship.
   •   Starship can launch 20 tons to GTO.
   •   Starship + Super Heavy launch potentially by end of 2020, commercial operations in 2021.
   •   Flight proven boosters cost $50 million, reducing in future.
   •   SpaceX will offer to capture and return satellites.
   •   F9 2nd stage reuse abandoned due to payload reduction.
   •   Aim to reuse a Falcon 9 stage five times by end of year.

SpaceX targets 2021 commercial Starship launch
Quote
JAKARTA, Indonesia — The first commercial mission for SpaceX’s Starship and Super Heavy launch system will likely take place in 2021, a company executive said June 26.

Jonathan Hofeller, SpaceX’s vice president of commercial sales, said the company is in talks with prospective customers for the first commercial launch of that system roughly two years from now.
“We are in discussions with three different customers as we speak right now to be that first mission,” Hofeller said at the APSAT conference here. “Those are all telecom companies.”

SpaceX’s Super Heavy booster and Starship upper stage are being designed to launch up to 20 metric tons to geostationary transfer orbit, Hofeller said, or more than 100 metric tons to low Earth orbit. Equipped with a nine-meter payload fairing, the launch system is designed to carry crew and resources to the moon and Mars, but is also SpaceX’s next vehicle to send satellites into orbit around the Earth and elsewhere.  ...
https://spacenews.com/spacex-targets-2021-commercial-starship-launch/

Reddit discussion:  https://www.reddit.com/r/spacex/comments/c6nyvn/spacex_targets_2021_commercial_starship_launch/


Such a rapid speed of creating a huge space transportation system clearly indicates that the world elite is well aware of the imminent climatic and geological catastrophe. Billionaires are investing huge amounts of money in spacecraft to create a spare safe place for themselves and their surroundings.

New strong earthquakes in California and the growing activity of the largest geyser in Yellowstone will increase the motivation for investment in SpaceХ.

oren

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Re: SpaceX
« Reply #211 on: July 06, 2019, 09:56:30 PM »
Quote
New strong earthquakes in California and the growing activity of the largest geyser in Yellowstone will increase the motivation for investment in SpaceХ.
::)

ArcticMelt2

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Re: SpaceX
« Reply #212 on: July 06, 2019, 10:11:33 PM »
Quote
New strong earthquakes in California and the growing activity of the largest geyser in Yellowstone will increase the motivation for investment in SpaceХ.
::)

What is your surprise? Have you watched the latest geyser data?

https://geysertimes.org/geyser.php?id=steamboat

He does not stop erupting. The last eruption lasted 1 hour and 16 minutes. This is an absolute record in duration (the last record was 1 hour and 15 minutes on September 17, 2018).

Such activity may be associated with recent eruptions in California.

ArcticMelt2

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Re: SpaceX
« Reply #213 on: July 06, 2019, 10:17:57 PM »
CNN says that it is the largest geyser not only in Yellowstone, but on the entire planet.

https://edition.cnn.com/2019/07/04/us/yellowstone-volcanic-activity-trnd/index.html



Quote
(CNN)The Steamboat Geyser at Yellowstone National Park is no Old Faithful.

The world's tallest active geyser -- whose major eruptions shoot water more than 300 feet into the air -- is known to be unpredictable. But if there was ever a year to witness Steamboat's spectacular surge of water, this might be it.
We're just over halfway through 2019 and the Steamboat Geyser has already erupted 25 times, according to the US Geological Survey. That puts it on track to surpass last year's record of 32 eruptions -- the largest number ever recorded in a year. The record before that was 29 eruptions in 1964.
The Steamboat Geyser erupted seven times just last month alone, the USGS said. June's outbursts, which occurred on the 1st, 7th, 12th, 15th, 19th, 23rd, and 28th, also smashed the record for the shortest interval between eruptions -- just over three days.

Quote
Yellowstone National Park is home to about 10,000 hydrothermal features, including hot springs, geysers and mud pots, the National Park Service says. It has about 500 geysers as well as the largest concentration of active geysers in the world.

It `s very unusual.

ArcticMelt2

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Re: SpaceX
« Reply #214 on: July 06, 2019, 10:42:50 PM »
More geyser "specialists" are having a lot of fun:

Quote
Poland said there are a number of possibilities why Steamboat is erupting more frequently. One is that several heavy snow years in Yellowstone created more groundwater to feed geysers and hot springs. The Steamboat Geyser is starting to erupt more frequently just as spring snowmelt is at its peak, he said.
It's a popular misconception that geyser eruptions are related to earthquake activity, but Poland said visitors to the national park have nothing to worry about. Steamboat's frequent surges do not reflect any deeper changes in Yellowstone's volcanic system: Geyser plumbing systems are within a couple hundred meters of the surface, while the magma system starts several thousand meters below.

For comparison, for 6 years between 2006 and 2013 there was not a single eruption of this geyser. Probably following the logic of "specialists", during these 6 years not a single millimeter of snow or rain fell in Yellowstone.

This is reminiscent of attempts to calm the population with the help of lies.

TerryM

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Re: SpaceX
« Reply #215 on: July 06, 2019, 11:24:01 PM »

For comparison, for 6 years between 2006 and 2013 there was not a single eruption of this geyser.

Is this then proof that AGW ceased during that 6 year period?


If the geyser is reacting to AGW then shouldn't the history of it's eruptions show a steadily increasing number of eruptions over a number of decades?


Couldn't this period of inactivity be used as a very strong argument against your theory?
Terry

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Re: SpaceX
« Reply #216 on: July 06, 2019, 11:30:00 PM »
I think Oren made a joke, and that joke should not be used as a basis to derail this thread.

There are other places to discuss the Yellowstone geysers. 😝

oren

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Re: SpaceX
« Reply #217 on: July 07, 2019, 12:19:13 AM »
The sentence I quoted made so little sense logically, but I didn't want to start arguing, certainly not in this thread. But I couldn't just let it stand. So I chose the quick coward's way of throwing in an emoji, "rolls eyes" to be more specific.

TerryM

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Re: SpaceX
« Reply #218 on: July 07, 2019, 12:22:01 AM »
The sentence I quoted made so little sense logically, but I didn't want to start arguing, certainly not in this thread. But I couldn't just let it stand. So I chose the quick coward's way of throwing in an emoji, "rolls eyes" to be more specific.
Ramen ;)
Terry

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Re: SpaceX
« Reply #219 on: July 07, 2019, 04:28:47 AM »
Maybe AM can ask Space X to send specially equipped capsules into Steamboat to get to the bottom of the matter.  (And AM can report the outcome on another thread, unless there is a Space X public notice.)  :-X
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ArcticMelt2

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Re: SpaceX
« Reply #220 on: July 07, 2019, 10:02:50 PM »

For comparison, for 6 years between 2006 and 2013 there was not a single eruption of this geyser.

Is this then proof that AGW ceased during that 6 year period?


If the geyser is reacting to AGW then shouldn't the history of it's eruptions show a steadily increasing number of eruptions over a number of decades?


Couldn't this period of inactivity be used as a very strong argument against your theory?
Terry

If, after 2012, no new record is set in the Arctic for the minimum ice area and the amount of melting in Greenland, does this mean that the AGW has stopped?

In addition, I have already given a table from which it follows that in the 20th century, periods of silence for the geyser reached 50 years (1911-1961):



Let's go back to the topic. I hope Mask will have time to earn money on his satellites.

https://www.reddit.com/r/Starlink/comments/c9c00k/starlink_orbit_update/

Quote
Starlink orbit update

53 satellites in a final 559 x 556 km orbit

2 satellites (J, AQ) stuck in their injection orbit at 450 x 440 km

1 satellite (AV) being deorbited at 411 x 398 km

4 satellites (Y, AA, AZ, BG) drifting to a new plane in a 500 x 500 km orbit

So it looks like Starlink testing will be done with a primary plane with 53 satellites and an offset secondary plane with just 4 satellites that can be used to test lateral "plane to plane" switching for small sections of an orbit as well as "along orbit" switching between satellites in the same plane.
« Last Edit: July 07, 2019, 10:08:15 PM by ArcticMelt2 »

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Re: SpaceX
« Reply #221 on: July 09, 2019, 05:11:20 PM »
Elon Musk’s Satellites Dot the Heavens, Leaving Stargazers Upset
https://www.bloomberg.com/news/articles/2019-07-08/elon-musk-s-satellites-dot-the-heavens-leaving-stargazers-upset

Two days after Elon Musk’s SpaceX launched 60 satellites in May as part of a mission to bring quick internet service to people worldwide, astronomers noticed something different.

As some of the satellites zipped past the Lowell Observatory in Flagstaff, Arizona, telescopes trained on the night sky captured streaks of reflected sunlight that marred their view of a far-off star system.



... “We just happened to be pointed in the right direction, and Starlink flew right through it” on May 25, two days after launch, said Jeffrey Hall, director of the Lowell Observatory. The unexpected appearance helped to signal that, as Hall put it, “this is potentially a problem.”

“There are three classes of people: those who see. Those who see when they are shown. Those who do not see.” ― Leonardo da Vinci

Insensible before the wave so soon released by callous fate. Affected most, they understand the least, and understanding, when it comes, invariably arrives too late

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Re: SpaceX
« Reply #222 on: July 16, 2019, 10:37:51 PM »
Quote
SpaceX Ready to Resume Starhopper Testing with Static Fire and Hop

Following the arrival and installation of a new Raptor engine on to the Starhopper vehicle at SpaceX’s test facility in Boca Chica, Texas – preparations are in full swing for a Static Fire test that will be required ahead of what is expected to be a 20 meter hop for the vehicle this week.
https://www.nasaspaceflight.com/2019/07/spacex-resume-starhopper-tests/

.

Leaky component led to SpaceX explosion
https://www.bbc.co.uk/news/science-environment-49005026
Quote
A small amount of NTO was driven at high speed through a helium check valve (one that allows gas to flow in just one direction) made from titanium during initialisation of the launch escape system - which is designed to blast the crew free in the event of a rocket failure. This led to structural failure within the valve.

In a statement, the company said: "The failure of the titanium component in a high-pressure NTO environment was sufficient to cause ignition of the check valve and led to an explosion."

It added: "The reaction between titanium and NTO at high pressure was not expected."

As a result of the explosion, SpaceX has already taken several actions, including the use of components called burst disks instead of check valves. The burst disks seal completely until opened by high pressure. The company believes this will prevent any liquid propellant entering the gaseous pressurisation system.
...
Demo-2 will ferry Nasa astronauts Doug Hurley and Bob Behnken to the ISS for the first crewed test flight of the vehicle. It would mark the first time US astronauts have launched to space from American soil since the last flight of the space shuttle in July 2011.

The plan had been to launch the mission at the end of this year. But officials currently won't commit to whether that goal can be achieved.

https://www.spacex.com/news/2019/07/15/update-flight-abort-static-fire-anomaly-investigation
« Last Edit: July 16, 2019, 10:45:27 PM by crandles »

Sigmetnow

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Re: SpaceX
« Reply #223 on: July 20, 2019, 03:24:45 PM »
Cargo Dragon to ISS Resupply mission
Falcon 9 finally conducts Static Fire test ahead of CRS-18 mission
https://www.nasaspaceflight.com/2019/07/falcon-9-static-fire-test-crs-18/

Falcon 9 • SpaceX CRS 18
Launch now scheduled No Earlier Than July 24
Launch time: Approx. 2024 GMT (6:24 p.m. EDT)
Launch site: SLC-40, Cape Canaveral Air Force Station, Florida

————
SpaceX delays Starhopper’s first flight a few days despite Raptor preburner test success
https://www.teslarati.com/spacex-starhopper-ignites-raptor-pre-hover-testing/

Some scary moments at the end of the Starhopper static fire test when, apparently, methane surrounding the rocket ignited.  But an untethered hop of about 20 meters is still expected next week.
Quote

Summary:
Good Static Fire (5 secs).
Methane Discharge ignited.
Hopper detanked and powered down fine.
Looks totally OK this morning.
Hop schedule TBD.
https://twitter.com/nasaspaceflight/status/1151504052125147138
Photos at the link.
< SpaceX personnel: so Elon how big a fireball do you want?
Elon: YES

Starhopper fires up for an eventful Static Fire test
https://www.nasaspaceflight.com/2019/07/spacex-resume-starhopper-tests/

—-
UPDATE: IN-FLIGHT DRAGON ABORT STATIC FIRE TEST ANOMALY INVESTIGATION
https://www.spacex.com/news/2019/07/15/update-flight-abort-static-fire-anomaly-investigation
A small amount of oxidizer in a helium high-pressure line was ignited by a failed titanium check valve — something the spacecraft industry did not think could happen.  Many space industry folks must now be looking at their own spacecraft and having an “Oh, sh**” moment….
Notably, “the SuperDraco thrusters recovered from the test site remained intact, underscoring their reliability.”

——
SpaceX’s Elon Musk says landing Starship on the Moon could be easier than convincing NASA
https://www.teslarati.com/spacex-elon-musk-starship-moon-landing-vs-nasa-conservatism/amp/
This article provides background on the following interview:

Elon Musk Told Us Why He Thinks We Can Land on the Moon in ‘Less Than 2 Years’
Quote
On July 12, TIME editor-at-large and space reporter Jeffrey Kluger had a far-ranging conversation with SpaceX CEO Elon Musk at the company’s headquarters in California. They discussed Musk’s reasons for starting SpaceX, his thoughts on his various challengers in the new race to the moon, and his predictions for the near-future of human space travel. The interview below has been lightly edited and condensed for clarity. (For more of the interview, tune into CBS Sunday Morning, July 21, at 9:00 AM, ET.)
https://time.com/5628572/elon-musk-moon-landing/
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vox_mundi

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Re: SpaceX
« Reply #224 on: July 25, 2019, 07:39:58 AM »
SpaceX Aborts First Attempted Flight Test of 'Starhopper' Prototype After Engines Fire
https://gizmodo.com/spacex-aborts-first-attempted-flight-test-of-starhopper-1836683140/amp


Roman candle?

A week after a fireball erupted from the base of SpaceX’s prototype “StarHopper” rocket during a static-fire test at the company’s Boca Chica, Texas facility, the company’s first “untethered” test launch of the craft was aborted after encountering technical difficulties on Wednesday, CNBC reported.

During the test, the rocket was supposed to fire its engines just long enough to lift it approximately 65 feet (20 meters) in the air. According to CNBC, while the rocket’s Raptor engine did begin to fire, it did not lift off the ground and “an enduring flame shot skywards near the top of the rocket.” TechCrunch noted that the prototype rocket appeared “relatively unscathed” after the incident.

... According to NASA Spaceflight, SpaceX may try again on Thursday, but the company hasn’t officially confirmed that yet.
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Sigmetnow

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Re: SpaceX
« Reply #225 on: July 26, 2019, 02:01:22 PM »
SpaceX Launches Used Dragon Capsule on Historic 3rd Cargo Run to Space Station
Quote
CAPE CANAVERAL, Fla. — SpaceX successfully launched its 18th commercial cargo mission to the International Space Station today (July 25), then stuck a rocket landing at the company's nearby landing site, LZ-1.
This flight marks the 18th mission for SpaceX under its commercial cargo resupply services contract with NASA. Of the missions flown to date, this is the seventh overall to feature a preflown Dragon and marks the first time the same Dragon spacecraft has flown to the station three times — CRS-6 in April 2015, the CRS-13 mission in December 2017 and now CRS-18. ...
https://www.space.com/spacex-crs-18-launch-third-dragon-flight.html

The 44th landing!
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Sigmetnow

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Re: SpaceX
« Reply #226 on: July 26, 2019, 02:07:26 PM »
Thursday was also historic for the first free flight of SpaceX’s new Raptor rocket engine, in a short free-flight, or “hop,” of the Starship test vehicle, called Starhopper.  Ground tests have shown the Raptor to be more powerful than any rocket engine in use today, which will enable a huge Starship to travel to and from Mars (with the help of a Superheavy booster to leave earth’s gravity well).

STARHOPPER'S FIRST HOP!!!! - YouTube

Look carefully to see the very top of Starhopper through the exhaust clouds ~ 1:30 to 1:34

SpaceX Starship Prototype Takes 1st Free-Flying Test Hop
Quote
SpaceX's prototype rocket for a planned Starship vehicle has flown untethered for the first time.
Called Starhopper, the rocket made its first free-flying test hop at SpaceX's Boca Chica proving ground in South Texas late Thursday (July 25), one day after a glitch forced it to abort an earlier attempt. Starhopper ignited its single Raptor engine just before midnight, apparently firing long enough to meet the test's main objective, which SpaceX founder and CEO Elon Musk had said would be a straight hop 65 feet (20 meters) up and down. 
"Starhopper test flight successful," Musk wrote on Twitter after the test. "Water towers *can* fly haha!!" (Starhopper is a large, squat cylinder on three legs wrapped in stainless steel, giving it a "water tower" look.) ...
https://www.space.com/spacex-starhopper-first-untethered-hop-success.html

Tweets from Elon Musk:
7/25/19, 11:49 PM
Starhopper flight successful. Water towers *can* fly haha!!
https://twitter.com/elonmusk/status/1154599520711266305

7/26/19, 1:49 AM
Engine cam pic.twitter.com/3cWHU50353
https://twitter.com/elonmusk/status/1154629726914220032
24-second vid

7/26/19, 4:48 AM
Drone cam pic.twitter.com/gVdMrMgUZq
https://twitter.com/elonmusk/status/1154674872041103360
27-second vid

< That’s one small hop for a water tower...one giant leap toward Mars colonization

Quote
Reddit:  https://www.reddit.com/r/spacex/comments/chz00d/elon_on_twitter_engine_cam/

< This is the first flight of a full-flow staged combustion engine. Not only is the most challenging rocket cycle, they've managed to get it throttling (and gimbaling) so that it can hover a water tower with precision :-O
Well done SpaceX, the reason all us engineers across the world are cyber-stalking you is that you're doing the coolest goddamn engineering we've ever seen.

< don't know why people keep calling it a water tower when it's clearly an R2 grain solo
< The shutdown is very clean, no screech or burp, just a perfect stop

History:  The Hopper/ship/Raptor story up to Wednesday
https://www.nasaspaceflight.com/2019/07/spacex-resume-starhopper-tests/

“In full-flow staged combustion (FFSC), even more complexity is added as all propellant that touches the engine must necessarily end up traveling through the main combustion chamber to eke every last ounce of thrust out of the finite propellant a rocket lifts off with. As such, FFSC engines can be about as efficient as the laws of physics allow any given chemical rocket engine to be, at the cost of exceptional complexity and brutally difficult development.“
https://www.teslarati.com/spacex-starhopper-flight-test-raptor-video/
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Sigmetnow

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Re: SpaceX
« Reply #227 on: July 26, 2019, 08:15:30 PM »
Here’s an enhanced video that indicates the horizontal translation at the top and during descent that was always part of the plan for this first untethered Starhopper flight.

Chris B - NSF (@NASASpaceflight) 7/26/19, 1:49 PM
SpaceX Starhopper Maiden HOP - Now with multi-view with Bocachicagal (Mary) + Overlay and Elon Videos:
Thanks to Mary (@BocaChicaGal) and also Jay DeShetler (@jdeshetler) who did the editing:
youtu.be/G-guuMr53Uw
https://twitter.com/nasaspaceflight/status/1154810914278952965


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Sigmetnow

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Re: SpaceX
« Reply #228 on: July 28, 2019, 10:17:15 PM »
Behind the scenes: Starhopper and Starship
Quote
Jack Beyer (@thejackbeyer) 7/26/19, 8:29 AM
#Starhopper’s first hop! Since we had so much smoke to contend with, here’s a two image composite, one image is of the start of the hop, and one is at apogee, during translation. Blue bracket is height of the vehicle, green is height of the hop.
https://twitter.com/thejackbeyer/status/1154730346770063361
  Photo below.
Quote
Chris B - NSF (@NASASpaceflight) 7/26/19, 9:04 AM
The 20 meter hop - drone camera. [at the link]
And - if you missed this other piece of news - Elon's saying Starhopper will hop 200 metes in a week or so.
So that's going to rise way above the exhaust and provide some surreal "flying water tower" views

Quote
Chris B - NSF (@NASASpaceflight)
7/28/19, 3:16 PM
VIDEO: SpaceX Starhopper Sunday Drive.
Starhopper was taken back to its launch site on Sunday, in preparation for its 200 meter hop next month. It was carried by Roll Lift Crawlers.

Video by Mary (@BocaChicaGal)
https://twitter.com/nasaspaceflight/status/1155557686152486912


—-
Quote
Elon Musk (@elonmusk) 7/28/19, 5:50 AM
Now that Hopper has flown, Starship update probably in two weeks or so.
https://twitter.com/elonmusk/status/1155415096387969024

=====
ICYMI:  SpaceX performed “hops” with Grasshopper, the Falcon 9/ Merlin engine prototype, years ago, on their way to making the Falcon reusable.

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Sigmetnow

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Re: SpaceX
« Reply #229 on: July 28, 2019, 10:21:10 PM »
Falcon 9 returns safely to earth after helping deliver CRS-18 to the International Space Station.

Quote
Elon Musk (@elonmusk) 7/28/19, 5:46 AM
Falcon 9 piercing the sound barrier on reentry
https://twitter.com/elonmusk/status/1155414118574067713
Photo below

——-
Quote
Emre Kelly (@EmreKelly) 5/10/18, 2:47 PM
Falcon 9 Block 5's landing legs, meanwhile, have moved features from the outside to the inside. Internal latch mechanism can now be closed and opened with ease. Previously, it required several hours to re-stow the landing gear, according to Musk.
https://twitter.com/emrekelly/status/994650151376637952

Quote
Tyler Gray (@TylerG1998) 7/27/19, 10:59 PM

B1056.2 is once again getting its legs folded after its second launch and landing on Thursday.
https://twitter.com/tylerg1998/status/1155311833286356993
Photo below.
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TerryM

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Re: SpaceX
« Reply #230 on: July 29, 2019, 12:55:18 AM »
A number of fire trucks were required to extinguish a 100 acre brush fire ignited by Spacex's Starhopper test launch. Spacex employees and the local fire department had fire under control by Friday. There were no homes in the vicinity.


https://www.businessinsider.com/spacex-starhopper-rocket-launch-wildfires-texas-2019-7


Terry

crandles

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Re: SpaceX
« Reply #231 on: July 30, 2019, 12:21:04 PM »
Moving this here.

Before SpaceX, there has never been a rocket that reached orbit (orbital velocity) and survived re-entry to land.  Let alone was launched to orbit and re-landed a second time.  Or a third time!

The technology existed for decades. There was no point in doing it. There still is no point in doing it. If it can safely be repeated 10 times over, then it will make sense.

Musk invented nothing (except a really strange rocket-fueled "green" cult).

Space shuttle?
That flew again several times but was too costly in refurbishment.

If falcon 9 is cheap to refurbish as it appears that it is, why wouldn't two or three flights make it worth while? Why are 10 needed to make it make sense? One third payload, partially expendable, some refurbishment/inspection: 2 launches might be close to savings each launch, 3 launches should produce cost savings. Might need a lot of such launches to recoup the development costs, but I don't see why it can't work out as a good strategy with a maximum of 3 launches.

Just because only 3 reflights so far, doesn't mean 4th and more reflights are not possible. I am expecting next Starlink flight scheduled NET late September will be a 4th launch. If it isn't. I think concerns will then reasonably grow that they cannot get a 4th reflight.

Are you really saying that if 1 flight in 9 or less need an expendable format so SpaceX never has to fly one 10 times, that it isn't worth it.

The benefit to SpaceX is mainly having to develop only one rocket and having several configurations in which it can fly. Essentially rightsizing the rocket to the payload - less expensive launches for smaller payloads. Has meant they have got very large share of launch market despite developing relatively few rockets and variants.

Sigmetnow

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Re: SpaceX
« Reply #232 on: July 31, 2019, 04:02:49 AM »
A number of fire trucks were required to extinguish a 100 acre brush fire ignited by Spacex's Starhopper test launch. Spacex employees and the local fire department had fire under control by Friday. There were no homes in the vicinity.
...

 ;)

Chris B - NSF (@NASASpaceflight) 7/26/19, 12:14 AM
The morning papers: "As Boca Chica burns to the ground, rocket fans continue to grin from ear to ear"
@LabPadre stream: youtube.com/watch?v=dsBr9JJNrBw
#DontPanic #BushFire pic.twitter.com/c1UNoXkRmn
https://twitter.com/nasaspaceflight/status/1154605893587259393

—-
Mary (@BocaChicaGal) 7/30/19, 6:19 PM
There's already a notice to close the road and beach for the next stage of StarHopper testing, a 200 meter hop.
@NASASpaceflight pic.twitter.com/rpw4vu4rzt
https://twitter.com/bocachicagal/status/1156328446018105345
Image at the link:  road closure announced for August 12, with 13 & 14 as alternates. 2 to 11 pm each day.

A local judge must sign off all the SpaceX road closure requests (for testing).  If there were any concerns, testing could easily be stopped.
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TerryM

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Re: SpaceX
« Reply #233 on: July 31, 2019, 06:16:08 PM »

<snipped>

A local judge must sign off all the SpaceX road closure requests (for testing).  If there were any concerns, testing could easily be stopped.


While I may shutter at visions of the oversight of a local southern judge, I've no doubt that the recent conflagration has left us a reasonably robust fire break. ;)


Sig,  do you have any idea of the methane each of these launches/tests releases? I'm sure that individually the amounts make little or no difference - but I recall Musk calling for 20 or more launches/year going forward and it could over time become problematical.


If I stumble across a figure I'll post it here.
Terry


crandles

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Re: SpaceX
« Reply #234 on: July 31, 2019, 07:03:19 PM »
Sig,  do you have any idea of the methane each of these launches/tests releases?

If I stumble across a figure I'll post it here.
Terry

Are you wanting to find out about liquid methane leakage as they top up the rocket plus any unburnt fuel, or the total amount of fuel most of which will be burnt to CO2 and water?

Not sure if this helps:

Starship https://en.wikipedia.org/wiki/Starship_(spacecraft)
Launch mass   1,335,000 kg (2,943,000 lb)
Dry mass   85,000 kg (187,000 lb)
Payload capacity   150,000 kg
Raptor engine https://en.wikipedia.org/wiki/Raptor_(rocket_engine_family)
Mixture ratio   3.81

Starhopper is much smaller of course.

Sigmetnow

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Re: SpaceX
« Reply #235 on: July 31, 2019, 09:58:35 PM »
New article in Reddit outlines SpaceX’s timeline as we know it so far.  Awaiting an update from Elon Musk in the next few weeks.

https://www.reddit.com/r/spacex/comments/ck91az/starship_plan_coming_together/
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Re: SpaceX
« Reply #236 on: July 31, 2019, 10:04:51 PM »
Here's an interesting (if dated) calculation, which concludes that the carbon emitted in 1 SpaceX rocket launch equals approximately the carbon savings over their life of 10 Tesla cars.

https://faculty.washington.edu/dwhm/2016/03/18/how-many-teslas-does-it-take-to-make-up-for-a-spacex-launch/

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Re: SpaceX
« Reply #237 on: August 02, 2019, 01:49:26 PM »
Quote
SpaceX (@SpaceX) 8/1/19, 6:06 PM
Team is setting up an additional static fire test of Falcon 9 after replacing a suspect valve. Will confirm updated target launch date for AMOS-17 once complete.
https://twitter.com/spacex/status/1157049942113865728

Looks like No Earlier Than the evening of Monday, August 5.  The AMOS-17 mission will expend the Falcon 9 booster. :'(

SpaceX delays expendable Falcon 9 satellite launch for an unprecedented second static fire test
https://www.teslarati.com/spacex-falcon-9-delay-second-static-fire/

In fact, just a month ago, SpaceX reached a major milestone of reusability when it recovered two flight-proven Falcon Heavy boosters and became the first company in history to launch and land more orbital-class rocket boosters than it has expended (as of June 2019: 81 launched, 43 landed). SpaceX followed this up with landing #44 after Falcon 9 B1056.2 successfully completed its second launch on July 25th.
SpaceX transports Falcon 9 to launch site ahead of Block 5’s second expendable launch ever
https://www.teslarati.com/spacex-falcon-9-block-5-second-expendable-launch/

========
Quote
SpaceXFleet Updates (@SpaceXFleet) 8/1/19, 5:55 PM
BREAKING: Just Read the Instructions (aka Marmac 303) is to leave Los Angeles and transit the Panama Canal on 15th August.
The destination is not known but Port Canaveral is a potential location.
Thanks to u/Vedaprime on Reddit. Search for Marmac 303
boydsteamship.com/booking

Thomas Burghardt (@TGMetsFan98) 8/1/19, 6:05 PM
There was, at one point, plans for a 3rd drone ship (A Shortfall Of Gravitas/ASOG) to support the east coast’s higher launch cadence, per @elonmusk. Perhaps ASOG will replace JRTI on the west coast, or maybe there are no drone ship recoveries from Vandenberg for a while. https://twitter.com/tgmetsfan98/status/1157049775621099521
« Last Edit: August 02, 2019, 01:58:31 PM by Sigmetnow »
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Sigmetnow

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Re: SpaceX
« Reply #238 on: August 02, 2019, 01:53:52 PM »
Plans for preparing Launch Complex 39A to handle Starship and Super Heavy!
Quote
Chris B - NSF (@NASASpaceflight) 8/1/19, 10:42 PM
"Draft Environmental Assessment for the SpaceX Starship and Super Heavy Launch Vehicle at Kennedy Space Center (KSC) -
https://netspublic.grc.nasa.gov/main/20190801_Final_DRAFT_EA_SpaceX_Starship.pdf
 - heck of a long read, but as we reported (nasaspaceflight.com/2019/05/spacex…), Starship Pad 'off ramp' on 39A. "
https://twitter.com/nasaspaceflight/status/1157119556323876866
Quote
"SpaceX plans to launch the Starship/Super Heavy up to 24 times per year from LC-39A. A static fire test would be conducted on each stage prior to each launch."
Looks like Super Heavy lands on an ASDS.
Starship LZ-1 at first. Pad inside the fence at 39A still under evaluation!

—-
From the document:
“SpaceX has successfully demonstrated their ability to service the launch industry with the Falcon family of launch vehicles now developing a multi-mission, fully reusable, super heavy-lift launch vehicle. The Starship/Super Heavy launch vehicle would reduce the cost of access to space, exceeding the capabilities of the Falcon 9 and Falcon Heavy launch vehicles, enabling cost-effective delivery of cargo and people to the Moon and Mars.”
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Sigmetnow

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Re: SpaceX
« Reply #239 on: August 03, 2019, 06:46:15 PM »
The August 2019 Environmental Study for SpaceX’s proposed Starship upgrades to Launch Complex 39A in Florida includes a section on Air Quality — and finds no significant hazards.

Page 7 of 250:
Quote
Potential Environmental Impact from Proposed Action
    Air Quality
    Impacts to local and regional air quality due to activities associated with the construction activities, ground and launch operations, landing operations, engine test firing, the occasional operation of generators, and ground vehicle emissions are expected to be insignificant.

For the maximum launch frequency of 24 launches per year, Starship/Super Heavy launch vehicle would emit up to 0.29 tons per year of nitrogen oxides (NOx) and carbon monoxide (CO). During the Starship landing, up to 0.016 tons per year of NOx and CO would be emitted. During the Super Heavy booster landing, up to 0.036 tons per year of NOx and CO would be emitted. Static fire tests conducted prior to launch for the Super Heavy booster and Starship would emit 0.13 and 0.03 tons per year, of NOx and CO, respectively. The total potential emissions of any criteria pollutants under the Proposed Action would not be expected to cause exceedances of the National Ambient Air Quality Standards (NAAQS).

Quote
CO2 emissions from landing of the Starship or Super Heavy booster, whether on a droneship, at LZ-1, or at LC-39A, would be appreciably less than emissions from launches because fewer engines would be relit. In addition, planned reuse of first stage boosters would reduce potential emissions compared to manufacturing and shipping a new booster to the launch site. Therefore, the emissions of GHGs from Starship/Super Heavy launch, static fire test, and landing events would be insignificant and would not cause any appreciable addition of GHGs into the atmosphere; and the impact to regional or global climate change, including sea level rise, is anticipated to be insignificant.

The section beginning on page 169 analyzes Raptor engine emissions and stoichiometry in depth.
Exhaust Plume Calculations for SpaceX Raptor Booster Engine
P. 177:  ”The small concentration of unburnt methane is rapidly oxidized, surviving less than 1 msec.”

Note: one benefit of Methane as a fuel:  no soot!

Link to the study:  https://netspublic.grc.nasa.gov/main/20190801_Final_DRAFT_EA_SpaceX_Starship.pdf

And here’s an article:  https://www.nasaspaceflight.com/2019/05/spacex-ssto-starship-launches-pad-39a/ 
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TerryM

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Re: SpaceX
« Reply #240 on: August 03, 2019, 08:57:11 PM »
Thanks Sig
Your above addressed my concerns WRT GHG emissions. :)
Terry

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Re: SpaceX
« Reply #241 on: August 03, 2019, 09:29:21 PM »
The same methane benefit as fuel should be applied to other modes of transportation not just Elon's rockets.

Sigmetnow

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Re: SpaceX
« Reply #242 on: August 05, 2019, 03:55:55 PM »
SpaceX (@SpaceX) 8/3/19, 11:58 PM
Static fire test of Falcon 9 complete—team is now working toward August 6 for launch of AMOS-17 from Pad 40 in Florida, pending Range availability
https://twitter.com/spacex/status/1157863437877141506

——-
Quote
< Any Starship updates?
Elon Musk (@elonmusk) 8/3/19, 7:53 PM
August 24th, either at Cape Canaveral or Boca Chica
https://twitter.com/elonmusk/status/1157801794069827584

Evelyn Janeidy Arevalo (@JaneidyEve) 8/3/19, 8:12 PM
@elonmusk Please at Boca Chica!
Since i can't travel to Cape  :'(
- I hope the presentation is at Boca Chica because i thought you said local supporters will be invited.
   
- BOCA CHICA TEXAS
Why:
✔ The first Starship Hopper was tested here!
✔ Starship Mk1 is looking good
✔ local supporters have been so excited documenting Starship's progress since Jan 1, 2019
✔ Tacos are good down here!
✔ Gift small town dreamers inspiration for the future ♡

Elon Musk (@elonmusk) 8/3/19, 9:09 PM
Very convincing! Ok, Boca it is. We should have Starship Mk1 with 3 Raptors almost ready to fly by then.
https://twitter.com/elonmusk/status/1157820736582688773

Elon Musk will update the status of Starship development on August 24
"We should have Starship Mk1 with 3 Raptors almost ready to fly by then."

https://arstechnica.com/science/2019/08/elon-musk-will-update-the-status-of-starship-development-on-august-24/

SpaceX’s Florida Starship hits growth spurt as Texas Starship begins bulkhead installation
https://www.teslarati.com/spacex-texas-florida-orbital-starships-rapid-progress/

——
Image below:  Some believe... SpaceX is building a Stargate™ or two. ;)
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Sigmetnow

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Re: SpaceX
« Reply #243 on: August 05, 2019, 04:00:00 PM »
Starship could launch (with Super Heavy booster), be refueled in an elliptical earth orbit, then fly to the moon, land propulsively… and return to earth without needing to refuel.  But NASA is in a rush (demanded of this administration), so it’s attempting a three-part huge SLS rocket + “Lunar Gateway/fuel depot” + Lunar transport ship — things it’s familiar with and/or has in the works.  And now even the usual bidding process has been abandoned in the interest of time:

Will NASA Sole-Source Northrop to Build a Space Station to Orbit the Moon?
 https://www.msn.com/en-us/travel/news/will-nasa-sole-source-northrop-to-build-a-space-station-to-orbit-the-moon/ar-AAFk6QP

====
Elon Musk(@elonmusk): Depot haha …
  —
[Making] Dragon dock with Space Station is much harder than docking with our own ship for refilling. Not a problem.
https://twitter.com/elonmusk/status/1156671168151093249

The SLS rocket may have curbed development of on-orbit refueling for a decade
https://arstechnica.com/science/2019/08/rocket-scientist-says-that-boeing-squelched-work-on-propellant-depots/
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Sigmetnow

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Re: SpaceX
« Reply #244 on: August 05, 2019, 08:43:00 PM »
Wow.  This allows smaller customers access to big-time SpaceX, and flights on a scheduled basis.
Quote
SpaceX (@SpaceX) 8/5/19, 2:00 PM
SpaceX is expanding its launch services to directly address the needs of small satellite operators through regularly scheduled, dedicated Falcon 9 rideshare missions → spacex.com/smallsat
https://twitter.com/spacex/status/1158437647280271363
30-second animation at the link of second stage, fairing deploy.

From the website:
SMALLSAT RIDESHARE PROGRAM
DEDICATED AFFORDABLE RIDESHARE TO SUN SYNCHRONOUS ORBIT
Quote
DEDICATED ESPA CLASS MISSIONS AS LOW AS $2.25M
SpaceX’s SmallSat Rideshare Program will provide small satellite operators with regularly scheduled, dedicated Falcon 9 rideshare missions to SSO for ESPA class payloads for as low as $2.25M per mission, which includes up to 150 kg of payload mass.

Unlike traditional rideshare opportunities, these missions will not be dependent on a primary. These missions will be pre-scheduled and will not be held up by delays with co-passengers.

For payloads who run into development or production challenges leading up to launch, SpaceX will allow them to apply 100% of monies paid towards the cost of rebooking on a subsequent mission (rebooking fees may apply).

Falcon 9 was the most frequently launched commercial rocket worldwide in both 2017 and 2018. With SpaceX as a launch partner, small satellites can fly on dedicated missions with the world’s leading commercial launch provider at a fraction of traditional costs. ...
https://www.spacex.com/smallsat

Image below.
“L-12” = 12 months before launch.  Book early for the best price! ;)
These will launch from SpaceX’s Vandenberg, California, launch complex 4E, and placed into an earth orbit that keeps the satellite always in sunlight (facing earth’s day-side, and thus continually powering any solar array).

Edit:
Reddit discussion here: https://www.reddit.com/r/spacex/comments/cmegmu/spacex_is_expanding_its_launch_services_to/
« Last Edit: August 05, 2019, 08:48:32 PM by Sigmetnow »
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Sigmetnow

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Re: SpaceX
« Reply #245 on: August 06, 2019, 02:11:21 PM »
SpaceX launch of Amos 17 satellite is scheduled for this evening, 2253-0021 GMT on 6th/7th (6:53-8:21 p.m. EDT on 6th), from SLC-40, Cape Canaveral Air Force Station, Florida.  Of note is that Cape Canaveral has scheduled a ULA launch from the Cape Thursday morning, which would be fastest turnaround between two orbital rocket launches at the Space Coast since May 1981.  (Weather may affect those plans, however.)  Faster turnaround times are expected to become more the norm soon.
Quote
Several new launch providers plan to start flying rockets from Cape Canaveral in the next few years, including Blue Origin, Firefly Aerospace and Relativity Space. With new entrants to the market joining the Cape Canaveral launch manifest, the Air Force is pushing to streamline and modernize range infrastructure on Florida’s Space Coast to support up to 48 missions per year.

That would be equivalent to an average of about one launch per week, with a few weeks of down time for maintenance on the range.
“In this case, we’d be showing that is not one a week, it’s a couple a week,” Schiess said. “We’re looking forward to it, (and) really excited to be able to show that capability.”

The Eastern Range consists of a network of communications, tracking and safety installations used by every launch from Florida’s Space Coast. The range typically operates on a first-come, first-served basis to accommodate requests from launch providers like SpaceX and ULA.

One key enabler for faster turnaround times is the introduction of an autonomous self-destruct mechanism on rockets, an addition that cuts the Air Force’s workload for each launch.

The on-board safety system relies on Global Positioning System satellite navigation data, replacing decades-old radars and tracking equipment that required military officers to manually send commands to destroy errant boosters before they could threaten people and property.

The switch is expected to save millions of dollars in infrastructure costs and allow for more launches from Air Force-run ranges at Cape Canaveral and Vandenberg Air Force Base, officials said.

The Air Force aims to eventually host launches on the same day. The last time two orbital-class rockets blasted off from Cape Canaveral within a 24-hour period occurred in April 1978.

Air Force’s Cape Canaveral commander excited for two launches in less than 36 hours
https://spaceflightnow.com/2019/08/05/cape-canaveral-to-host-two-launches-in-36-hours-this-week/
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Sigmetnow

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Re: SpaceX
« Reply #246 on: August 06, 2019, 02:14:27 PM »
Quote
Elon Musk (@elonmusk) 8/5/19, 5:32 AM
Just left Starship Texas build site. Very proud of progress SpaceX team has made! Pics are of 9m dome rotation & Starship airframe behind windbreak.
[Photos at the link.]
- Headed to Starship Cape Canaveral build site today

Elon Musk (@elonmusk) 8/6/19, 12:06 AM
Great progress by Starship Cape team. Started several months behind, but catching up fast. This will be a super fun race to orbit, moon & Mars!

Everyday Astronaut (@Erdayastronaut)
Are they actually racing to orbit (Starship and Super Heavy)? Or just racing to get out of the atmosphere and practice the belly flop-to-tail down maneuver?

Elon Musk (@elonmusk) 8/6/19, 2:51 AM
Race to orbit by both teams, although a success by both in close proximity would be amazing & each would count as a win
https://twitter.com/elonmusk/status/1158631714706427904
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petm

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Re: SpaceX
« Reply #247 on: August 07, 2019, 03:09:27 AM »
Not SpaceX but still very cool:


Sigmetnow

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Re: SpaceX
« Reply #248 on: August 07, 2019, 03:10:04 AM »
SpaceX Falcon 9 Block 5’s second expendable launch a bittersweet success
https://www.teslarati.com/spacex-falcon-9-block-5-second-expendable-launch-success/

And they caught a fairing half!
Quote
SpaceXFleet Updates (@SpaceXFleet) 8/6/19, 7:45 PM
Here we go! First position in from Ms. Tree...
Heading north west at 9 knots as of 7 minutes ago.
We now know from @elonmusk
that Ms. Tree and the fairing half lock on and the ship is guided automatically.

https://twitter.com/spacexfleet/status/1158886885995044865

Elon Musk (@elonmusk) 8/6/19, 8:17 PM
Fairing caught […]
Elon Musk (@elonmusk) 8/6/19, 8:37 PM
Rocket fairing falls from space & is caught by Ms Tree boat
https://twitter.com/elonmusk/status/1158899839456800769
[ 28 sec (some skips) VIDEO AT THE LINK — the boat is underway!]
< A drone flying in formation with a ship sailing in formation with a fairing falling from space.

Edit: more:
SpaceX nails second Falcon 9 fairing catch ever with GO Ms. Tree, Elon Musk shares video
https://www.teslarati.com/spacex-nails-second-falcon-9-fairing-catch-ever-with-go-ms-tree-elon-musk-shares-video/
« Last Edit: August 07, 2019, 03:16:31 AM by Sigmetnow »
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crandles

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Re: SpaceX
« Reply #249 on: August 07, 2019, 01:26:09 PM »
12 block 5 boosters have been flown a total of 27 times. 2 have been deliberately expended and 2 destroyed in attempted landing/transport after landing.

Stats will change over time. However, on these figures, do we see no real potential for more than 27/2=13.5 flights per booster and it will take some time to get there. On such figures, it hardly seems worth doing a substantial refurbishment if a booster is able to do 10 flights before such refurbishment. If they can't do as many as 10, then more details of refurbishment cost versus construction cost are likely needed than available to make such a decision.