Skylon 581 Posted April 28, 2017 Share Posted April 28, 2017 (edited) Old thread merged with the BO and Orion thread. This is the new one. Useful links: r/SpaceX Wiki Long list of acronyms Edited May 12, 2018 by Skylon Quote Link to post Share on other sites
monstah 2,707 Posted April 28, 2017 Share Posted April 28, 2017 Allright, lets try this out again. It seems like the old threads will stay glued, but we believe the new ones won't give you trouble. *turns thread back on* *steps back cautiously* Quote Link to post Share on other sites
YNM 2,602 Posted April 28, 2017 Share Posted April 28, 2017 Wow. Allright... So, to start, is this the only SpaceX thread for now ? Quote Link to post Share on other sites
CatastrophicFailure 16,942 Posted April 28, 2017 Share Posted April 28, 2017 Fancy that, in after the lock... Getting back on track here, NROL-76 launch this Sunday at waytooflarpingearly:00 AM PDT, your timezone may vary. Quote Link to post Share on other sites
tater 27,924 Posted April 28, 2017 Share Posted April 28, 2017 This launch is going to have the shortest ever stage 1 burn... Merlin change? Quote Link to post Share on other sites
CatastrophicFailure 16,942 Posted April 28, 2017 Share Posted April 28, 2017 Hmm, where'd you see that? Could the payload just be that light? Quote Link to post Share on other sites
tater 27,924 Posted April 28, 2017 Share Posted April 28, 2017 Dunno, it was posted at NSF (not L2). Quote Link to post Share on other sites
sevenperforce 7,612 Posted April 28, 2017 Share Posted April 28, 2017 I, for one, suspect uprating of the Merlin 1Ds in anticipation of Block 5. Quote Link to post Share on other sites
Mad Rocket Scientist 4,936 Posted April 28, 2017 Share Posted April 28, 2017 A couple of handy links: http://bit.ly/2puphXG http://www.patrick.af.mil/Portals/14/documents/Weather/L-2 Forecast 30 Apr Launch.pdf https://spaceflightnow.com/2017/04/25/nrol-76-launch-preps/ Quote Link to post Share on other sites
TheEpicSquared 2,065 Posted April 29, 2017 Share Posted April 29, 2017 https://spaceflightnow.com/2017/04/29/falcon-9-rocket-rolled-to-launch-pad-with-classified-payload/ Progress! Quote Link to post Share on other sites
Scotius 3,036 Posted April 29, 2017 Share Posted April 29, 2017 Hmm. Maybe this mysterious payload is a spysat aimed at North Korea? On Molniya orbit it will hang above Pyongyang for hours. Considering current tensions about NK's nuclear and rocketry programs, i wouldn't be surprised if NRO wants to keep watchful eye on them. All of this is very "cloak and dagger" stuff Quote Link to post Share on other sites
magnemoe 2,709 Posted April 29, 2017 Share Posted April 29, 2017 5 hours ago, TheEpicSquared said: https://spaceflightnow.com/2017/04/29/falcon-9-rocket-rolled-to-launch-pad-with-classified-payload/ Progress! How is the fairing and payload attached to the rocket? SpaceX uses horizontal assembly like Russia does, but NRO payloads are designed for VAB who spacex don't have, I assume its plenty of assembly to fit fairing with payload on rocket. Quote Link to post Share on other sites
ZooNamedGames 3,064 Posted April 29, 2017 Share Posted April 29, 2017 Hope to be there tomorrow. Quote Link to post Share on other sites
wumpus 1,212 Posted April 29, 2017 Share Posted April 29, 2017 1 hour ago, Scotius said: Hmm. Maybe this mysterious payload is a spysat aimed at North Korea? On Molniya orbit it will hang above Pyongyang for hours. Considering current tensions about NK's nuclear and rocketry programs, i wouldn't be surprised if NRO wants to keep watchful eye on them. All of this is very "cloak and dagger" stuff I think Molniya orbits work with countries with significant East-West width. Like Russia, USA, Canada (possibly China, but they manage with a single time zone). Not so much with North Korea, but you could claim a China-watching Molniya was supposed to look at North Korea (and indeed spends plenty of time doing so). Quote Link to post Share on other sites
CatastrophicFailure 16,942 Posted April 29, 2017 Share Posted April 29, 2017 1 hour ago, Scotius said: Hmm. Maybe this mysterious payload is a spysat aimed at North Korea? On Molniya orbit it will hang above Pyongyang for hours. Considering current tensions about NK's nuclear and rocketry programs, i wouldn't be surprised if NRO wants to keep watchful eye on them. All of this is very "cloak and dagger" stuff North Korea is at about the same latitude of northern California, no need for a Molniya orbit, those are for high-latitude locations like a big chunk of Russia and the poles. I'm quite NK already has it's own dedicated satellite in GSO run by the NSA and the rest of the security alphabet soup. Which also happens to be a good place to watch Russia, China, etc. Whatever this bird is, it's been in the pipes for quite a while, probably long before Lil' Kim popped up and started waving his big rubber sabre around. Most of the articles I've seen say it's probably just a high-latitude comm relay, anyway. 1 hour ago, magnemoe said: How is the fairing and payload attached to the rocket? SpaceX uses horizontal assembly like Russia does, but NRO payloads are designed for VAB who spacex don't have, I assume its plenty of assembly to fit fairing with payload on rocket. There was video of the rocket being raised this morning, so this payload was definitely the standard horizontal integration. IIRC SpaceX actually has plans to modify 39A (b?) specifically for vertical integration of future NRO payloads. Quote Link to post Share on other sites
Codraroll 825 Posted April 29, 2017 Share Posted April 29, 2017 Sad to see the old thread go, but I welcome a thread title without any brackets. Quote Link to post Share on other sites
StrandedonEarth 7,477 Posted April 29, 2017 Share Posted April 29, 2017 I wonder if they'll try any fairing recovery on this one. Quote Link to post Share on other sites
insert_name 1,527 Posted April 30, 2017 Share Posted April 30, 2017 (edited) Seems to be a circular high inclination orbit on the payload faring. Could the booster do that within reason based on the current launch azimuth? Edited April 30, 2017 by insert_name Quote Link to post Share on other sites
CatastrophicFailure 16,942 Posted April 30, 2017 Share Posted April 30, 2017 8 minutes ago, insert_name said: Seems to be a circular high inclination orbit on the payload faring. Could the booster do that within reason? @tater said that NSF said that it's gonna be the shortest 1st stage burn ever, and I also read the second stage is going to re-enter "right away" over the Indian ocean, so I'm guessing the payload has its own boost stage and the whole thing is very light, lighter than a Dragon. 2 hours ago, StrandedonEarth said: I wonder if they'll try any fairing recovery on this one. We won't get to see separation, so..... Maybe the fairing IS the payload.... Quote Link to post Share on other sites
Mad Rocket Scientist 4,936 Posted April 30, 2017 Share Posted April 30, 2017 Got an alarm set, time to get some sleep. Quote Link to post Share on other sites
Mitchz95 1,022 Posted April 30, 2017 Share Posted April 30, 2017 (edited) Only one webcast this time? Interesting... maybe not enough people watching the technical-only. I won't be watching this one live, sadly. Gotta catch up on my sleep. Edited April 30, 2017 by Mitchz95 Quote Link to post Share on other sites
CatastrophicFailure 16,942 Posted April 30, 2017 Share Posted April 30, 2017 2 hours ago, Mitchz95 said: Only one webcast this time? Interesting... maybe not enough people watching the technical-only. I won't be watching this one live, sadly. Gotta catch up on my sleep. Or maybe it's because... this time, it's the people who are being watched... ...and... ...they see you when you're sleeping, they know when you're awake... Quote Link to post Share on other sites
TheEpicSquared 2,065 Posted April 30, 2017 Share Posted April 30, 2017 (edited) Spoiler Pics from here: https://spaceflightnow.com/2017/04/29/photos-falcon-9-rocket-poised-for-first-national-security-flight/ Also this: Edited April 30, 2017 by TheEpicSquared Adding stuff Quote Link to post Share on other sites
Skylon 581 Posted April 30, 2017 Author Share Posted April 30, 2017 15 minutes ago, CatastrophicFailure said: Or maybe it's because... this time, it's the people who are being watched... ...and... ...they see you when you're sleeping, they know when you're awake... ...they know if you think the Earth is flat ...but it's round for goodness sake!... Quote Link to post Share on other sites
TheEpicSquared 2,065 Posted April 30, 2017 Share Posted April 30, 2017 Just now, Skylon said: ...they know if you think the Earth is flat ...but it's round for goodness sake!... ... and they know if you think the moon landings are fake. ... and they won't be giving you a piece of the cake... Quote Link to post Share on other sites
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