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Thread: NASA Live

  1. #2641
    Donor Rami's Avatar
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    What kind of decay does the stage2 have? Just wondering if they're hoping to get release at any future point or if its total loss already. NG must be getting slaughtered behind closed doors.

  2. #2642
    Super Ponerator Global Moderator Evelgrivion's Avatar
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    Quote Originally Posted by Rami View Post
    What kind of decay does the stage2 have?
    Reentry burn. SpaceX does not command the launch vehicle after it launches; it carries out a pre-programmed sequence of actions to deploy the payload into space and reenter the atmosphere to avoid creating a debris hazard. If the payload was still attached, the payload came down with it.

  3. #2643
    SAI Peregrinus's Avatar
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    Quote Originally Posted by Evelgrivion View Post
    Quote Originally Posted by Rami View Post
    What kind of decay does the stage2 have?
    Reentry burn. SpaceX does not command the launch vehicle after it launches; it carries out a pre-programmed sequence of actions to deploy the payload into space and reenter the atmosphere to avoid creating a debris hazard. If the payload was still attached, the payload came down with it.
    It's also worth noting that the re-entry burn was witnessed, and the post-burn fuel vent at least was photographed. So the second stage certainly looks to have worked properly. Whether the payload adapter or payload did is not public knowledge.

  4. #2644
    Approaching Walrus's Avatar
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    american defense contractors in staggering level of incompetence scenes nonshocker

  5. #2645
    Super Ponerator Global Moderator Evelgrivion's Avatar
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    Quote Originally Posted by Approaching Walrus View Post
    american defense contractors in staggering level of incompetence scenes nonshocker
    This is a tricky case. Neither side can comment, and this thing's been as black as the blackest Cold War spy satellite programs. They've faked loss of mission before with this kind of super-secretive launch, so it's not possible to be 100% sure what's going on. The surest way to make sure classified information leaks to the public is to brief a Congressional Representative about it too - it may be exactly what it says on the tin, or it could be an active disinformation program. Both have precedent.

  6. #2646
    Super Ponerator Global Moderator Evelgrivion's Avatar
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    https://arxiv.org/abs/1801.02814

    Breakthrough Listen Observations of Breakthrough Listen with the GBT

    We have conducted a search for radio emission consistent with an artificial source targeting 1I/'Oumuamua with the Robert C. Byrd Green Bank Telescope (GBT) between 1.1 and 11.6 GHz. We searched the data for narrowband signals and found none. Given the close proximity to this interstellar object, we can place limits to putative transmitters with extremely low power (0.08 W).

  7. #2647
    Frug's Avatar
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    I, for one, will obey our new Oumuamuan overlords.

    Quote Originally Posted by Loire
    I'm too stupid to say anything that deserves being in your magnificent signature.

  8. #2648
    Approaching Walrus's Avatar
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    Quote Originally Posted by Evelgrivion View Post
    https://arxiv.org/abs/1801.02814

    Breakthrough Listen Observations of Breakthrough Listen with the GBT

    We have conducted a search for radio emission consistent with an artificial source targeting 1I/'Oumuamua with the Robert C. Byrd Green Bank Telescope (GBT) between 1.1 and 11.6 GHz. We searched the data for narrowband signals and found none. Given the close proximity to this interstellar object, we can place limits to putative transmitters with extremely low power (0.08 W).
    This seems to contradict itself?

  9. #2649
    Super Ponerator Global Moderator Evelgrivion's Avatar
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    Quote Originally Posted by Approaching Walrus View Post
    This seems to contradict itself?
    All of these kinds of observations have sensitivity limits. In this case, they have ruled out narrowband transmitters with greater than 80 milliwatts of broadcast power, which is the lowest signal strength they would be able to detect.
    Last edited by Evelgrivion; January 10 2018 at 01:44:22 PM.

  10. #2650

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    Quote Originally Posted by Evelgrivion View Post
    https://arxiv.org/abs/1801.02814

    Breakthrough Listen Observations of Breakthrough Listen with the GBT

    We have conducted a search for radio emission consistent with an artificial source targeting 1I/'Oumuamua with the Robert C. Byrd Green Bank Telescope (GBT) between 1.1 and 11.6 GHz. We searched the data for narrowband signals and found none. Given the close proximity to this interstellar object, we can place limits to putative transmitters with extremely low power (0.08 W).
    So big ol' chunk of rock is just a rock? Colour me absolutely fucking shocked

  11. #2651
    Super Ponerator Global Moderator Evelgrivion's Avatar
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    Quote Originally Posted by elmicker View Post
    So big ol' chunk of rock is just a rock? Colour me absolutely fucking shocked
    Technically they've only ruled that it's not making any sort of visible RF broadcasts even at very low power in the range they explored. This is consistent with a derelict spacecraft, or a big ol' chunk of rock. It's probably just a rock.

  12. #2652

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    Quote Originally Posted by Evelgrivion View Post
    This is consistent with a derelict spacecraft....
    Oh, we are soooo fucked.


  13. #2653
    Movember 2011 RazoR's Avatar
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    Pentagon: Ask SpaceX about Zuma.
    SpaceX: That’s not our story to tell.
    https://arstechnica.com/science/2018...to-tell/?amp=1
    Last edited by RazoR; January 12 2018 at 05:44:48 AM.

  14. #2654
    Super Ponerator Global Moderator Evelgrivion's Avatar
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  15. #2655

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    Quote Originally Posted by RazoR View Post
    Pentagon: Ask SpaceX about Zuma.
    SpaceX: Thatís not our story to tell.
    https://arstechnica.com/science/2018...to-tell/?amp=1
    Now the Pentagon does tell:
    "Based on the data available, our team did not identify any information that would change SpaceX's Falcon 9 certification status," Lieutenant General John Thompson, commander of the Space and Missile Systems Center, told Bloomberg News.
    Source: https://arstechnica.com/science/2018...on/?comments=1

  16. #2656
    Corwyna's Avatar
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    I’m waiting for a Trump tweet to fill us in on the top secret payload info
    Hiro Cor

  17. #2657
    Super Ponerator Global Moderator Evelgrivion's Avatar
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    Last edited by Evelgrivion; January 24 2018 at 05:16:53 PM.

  18. #2658
    Corwyna's Avatar
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    Fuckyeah! =)
    Hiro Cor

  19. #2659
    Lowa [NSN]'s Avatar
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    That is proper awesome! I too want to get body smacked by the sound of a rocket!
    I am beyond jelly. I so want to go watch a launch, even this type of thing would do, but timing it is a pretty big gamble (not impossible).
    Quote Originally Posted by Tarminic View Post
    I would create a dragon made out of vaginas. Then I would create a dragon made out of dicks. Then I would have them fight to the death.

  20. #2660
    Donor Nu11u5's Avatar
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    Quote Originally Posted by Lowa [NSN] View Post
    That is proper awesome! I too want to get body smacked by the sound of a rocket!
    I am beyond jelly. I so want to go watch a launch, even this type of thing would do, but timing it is a pretty big gamble (not impossible).
    My buddy is flying out to see the Feb 6 launch. I'm pretty jelly.

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