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Thread: SpaceX

  1. #2371
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    Yay! It worked.
    Forming opinions as we speak

  2. #2372
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    Water tanks can fly!
    At night the stars put on a show for free (Carole King)

    All moderation in purple - The rules

  3. #2373
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    I appreciate how they spared no effort in proving my tagline right.
    With sufficient thrust, water towers fly just fine.

  4. #2374
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    YES!!!!

    Water tanks CAN [language] fly!!
    Last edited by PetersCreek; 2019-Aug-27 at 10:32 PM. Reason: Rule 3

  5. #2375
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    Non-trivial stuff that makes me hoppy!
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  6. #2376
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    Oh that was cool!

    ETA: I always thought Starhopper resembled a grain silo. Either way....
    Last edited by schlaugh; 2019-Aug-27 at 11:09 PM.

  7. #2377
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    There's a LOT of construction coming up;

    the legs and fins being attached to both Starships, the Mk2 (Coco FL) Starship being transported to KSC, the Cocoa FL Super Heavy booster build starting (19+ ring segments are already fabbed), the LC-39A modifications, KSC's 67 acre SpaceX Operations Area, etc.*

    Busy-Busy...

  8. #2378
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    Elon Musk ✓ @elonmusk

    One day Starship will land on the rusty sands of Mars

    27AF25DD-DACA-482F-8F57-C5A8D5943C97.jpeg

    https://twitter.com/elonmusk/status/1166488383113158657

  9. #2379
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    It looks like their hover/land algorithm is quite robust by now; for a first flight of significant length that water tower seemed under very rigid control.
    With sufficient thrust, water towers fly just fine.

  10. #2380
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    Congratulations SpaceX
    I am because we are
    (African saying)

  11. #2381
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    Quote Originally Posted by docmordrid View Post
    YES!!!!

    Water tanks CAN [language] fly!!
    So can pumpkins!
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  12. #2382
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    Everyday Astronaut's 4k video, with repeats for different audio and framing. #2 has the audio of him going bonkers

    https://youtu.be/lsoS6C0uzGY

  13. #2383
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    Quote Originally Posted by docmordrid View Post
    Everyday Astronaut's 4k video, with repeats for different audio and framing. #2 has the audio of him going bonkers

    https://youtu.be/lsoS6C0uzGY
    I'll watch that next. I just got done with Scott Manley. Interesting discussion in the second half about the change in flame color, which I noticed in the live event.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  14. #2384
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    Whatever flew it wasn't a COPV, all 4 of those were present & accounted for that evening. Perhaps ground gear/debris or a lower part blown away by the exhaust plume.

    post-10859-0-18094200-1566978744.jpg

    Enough at McGregor to fit 3 engines in Starship Mk1, and start work on a set for Mk2.

    Viv @flcnhvy
    Replying to @elonmusk and 2 others
    How close is the current iteration of Raptor to orbital readiness?
    |
    Elon Musk ✔ @elonmusk
    Probably 2 to 3 months. Were about to ship Raptor SN 10
    7:37 PM - Aug 28, 2019

    https://twitter.com/elonmusk/status/1166857467214667776
    Last edited by docmordrid; 2019-Aug-29 at 01:48 AM.

  15. #2385
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    YAY!!!

    Evelyn Janeidy Arevalo
    @JaneidyEve
    Replying to @elonmusk and 3 others
    When will the first Starship Mk1 test flight be?
    |
    Elon Musk ✔ @elonmusk
    Aiming for 20km flight in Oct & orbit attempt shortly thereafter. Starship update will be on Sept 28th, anniversary of SpaceX reaching orbit. Starship Mk 1 will be fully assembled by that time.
    7:48 PM - Aug 28, 2019

    https://twitter.com/elonmusk/status/1166860032052539392

  16. #2386
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    Anything from SpaceX on the yellow exhaust just before touchdown or the not-COPV debris? Or any information about the condition of Starhopper?

  17. #2387
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    One usually reliable source at NSF said a bit of the thrust vector control system shook loose at touchdown.

    The yellow plume has too many non-crisis causes to worry about; calcium ions from the hot concrete would glow yellow, as would a rich mixture from throttling.

  18. #2388
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    Throttling was my assumption when I first watched the flight, but then listening to armchair experts, I'm not sure.

  19. #2389
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    Starship Mk2 may be in for a severe test. Think I'm battening down the hatches and leaving town for a while.

  20. #2390
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    Quote Originally Posted by docmordrid View Post
    Whatever flew it wasn't a COPV, all 4 of those were present & accounted for that evening. Perhaps ground gear/debris or a lower part blown away by the exhaust plume.
    If it could lose a COPV and still work--that would be even better. Some eroding of the engine?

    Still--a lovely test.

    I needed to see this. It took until the 2020s to get us to 1950's rocket ships.

    I'll take it.

  21. #2391
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    Starship Mk2 is tucked away in the Cocoa Sprung structure

    Steven Keagle @flasteve321
    #STARSHIP Is now ready for #dorianhurricane safely in the #SpaceX chapel. #Pixel3

    EDQ47SeWkAAMnAO.jpg

    https://twitter.com/flasteve321/stat...20801211904001

  22. #2392
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    So it does fit in. Let's hope that structure can withstand the hurricane. Then again, it's more or less built for that purpose, so one would assume it would.
    With sufficient thrust, water towers fly just fine.

  23. #2393
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    Did someone say “Rocket chapel”?
    I think I’ve seen this movie

    http://3.bp.blogspot.com/-Uqb6_fo9dr...70394504_n.jpg


    Sent from my iPhone using Tapatalk
    I may have many faults, but being wrong ain't one of them. - Jimmy Hoffa

  24. #2394
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    Quote Originally Posted by Nicolas View Post
    So it does fit in. Let's hope that structure can withstand the hurricane. Then again, it's more or less built for that purpose, so one would assume it would.
    Sprung structures are hurricane rated, surviving Katrina with minor exterior damage. They've survived use at the poles, in the ME deserts, etc. .
    Last edited by docmordrid; 2019-Aug-31 at 08:58 PM.

  25. #2395
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    Uhhhh...

    Frei Raum @Freiraum77
    Replying to @elonmusk @SpaceX
    please build a 12m diameter version later :-) i really loved the first design! Thankyou for all your work! And another question: Traveltime is so long to Mars. Are u planning to use other engines in the future? Like VASIMR ?
    |
    Elon Musk ✓ @elonmusk
    Probably 18m for next gen system
    7:34 PM - Aug 28, 2019

    https://twitter.com/elonmusk/status/1166856662336102401

  26. #2396
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    BIG convoy of trucks...more than shown.

    Kevin Hehmeyer @spaceXcentric
    Looky at what @BocachicaMaria1 just sent me. Confirmed to be the guts of #STARSHIP

    IMG_20190902_184436.jpg

    https://twitter.com/spaceXcentric/st...49756009889797

  27. #2397
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    Hilarious post on that thread showing a Piggly Wiggly truck supposedly in the convoy. It's a scene from Close Encounters!
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  28. #2398
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    A software bug in SpaceX’s communication system almost caused a collision with an ESA satellite.

    https://www.theverge.com/2019/9/3/20...n-space-debris

    On Monday, a European satellite changed its position in orbit to avoid a potential collision with one of SpaceX’s Starlink satellites — one of 60 probes the company launched in May to beam internet coverage down to Earth. The European Space Agency (ESA), which operates the satellite, performed the maneuver after calculating a higher than usual probability that the two satellites might run into each other. SpaceX did not move its satellite, blaming a computer bug that prevented proper communication with ESA.
    I am because we are
    (African saying)

  29. #2399
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    Quote Originally Posted by selvaarchi View Post
    A software bug in SpaceX’s communication system almost caused a collision with an ESA satellite.

    https://www.theverge.com/2019/9/3/20...n-space-debris
    FUD. They communicated with each other and both decided not to maneuver when the chance of collision was around 1 in 50000. A software bug prevented SpaceX from getting the notification that the risk of a collision had risen above 1 in 1000, and the ESA was able to safely perform their maneuver due to the earlier communications.

    Matt Desch (Iridium CEO) pointed out that they perform collision avoidance on average once a week without issuing press releases announcing who they'd maneuvered around.

  30. #2400
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    Quote Originally Posted by cjameshuff View Post
    FUD. They communicated with each other and both decided not to maneuver when the chance of collision was around 1 in 50000. A software bug prevented SpaceX from getting the notification that the risk of a collision had risen above 1 in 1000, and the ESA was able to safely perform their maneuver due to the earlier communications.

    Matt Desch (Iridium CEO) pointed out that they perform collision avoidance on average once a week without issuing press releases announcing who they'd maneuvered around.
    ESA and SpaceX had a days old agreement Aeolus would do the maneuver, so what SpaceX missed out on was the later updates. They never were going to take action.

    Translated from a German story

    https://www.n-tv.de/wissen/Esa-Satel...e21248848.html

    The Earth research satellite "Aeolus" fired its engines on Monday morning, as the Esa announced on Twitter. Experts previously calculated the risk of collision and then decided to move "Aeolus" further away from Earth. "Aeolus" flew over the SpaceX satellite. According to Esa, the probability of a collision was about 1 in 1000.

    Previously Esa contacted SpaceX. Together, it was decided that "Aeolus" evades. The agreement is important, said Holger Krag, the head of the Esa Space Attention Office. Otherwise, in the worst case, it could be that both satellites dodge in the same direction and so on. The agreement with SpaceX worked well according to the expert. That's not always the case: "There are satellite operators, they do not react when they write to them."

    More satellites mean more maneuvers

    So far, there are no rules of priority in space, explained Krag. Around 90 percent of the potentially dangerous encounters happened with inactive space debris - because it is clear that the active satellite has to dodge. For encounters between two active satellites, operators have to decide on a case-by-case basis what happens. The Esa demands rules and drives automation of the process. Because of the increasing number of satellites, it will need more evasive maneuvers in the future.
    Honestly, the Twitter FUD-storm seems aimed at getting the Ministerial to fund the program proposed in paragraph 2.

    Also,

    Jonathan O’Callaghan ✔ @Astro_Jonny
    Some additional bits of useful information about #Aeolus/#Starlink from SpaceX:

    - Starlink 44 is operational and capable of avoidance maneuvers if necessary

    - In three months the Starlink fleet has performed 16 collision avoidance maneuvers without any manual input (!)
    3:59 PM - Sep 3, 2019


    https://twitter.com/Astro_Jonny/stat...76820349415430.
    Last edited by docmordrid; 2019-Sep-04 at 03:40 PM.

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