September 23, 20223 yr 1 hour ago, RamjetFDO said: Next launch attempt is Tuesday, 9/27 at 10:37 CDT. Maybe https://www.wsj.com/articles/storm-moving-toward-florida-threatens-next-weeks-artemis-moon-launch-11663963103 The agency is monitoring the tropical depression and is likely to make a decision over the weekend about a possible launch attempt from the Kennedy Space Center in Florida that is currently scheduled for next Tuesday. …. Officials could decide to roll back the rocket to a storage building at the Kennedy property as soon as Friday evening, located along the Atlantic coast east of Orlando. It typically takes about three days to roll the vehicle back to that facility, a spokeswoman said.
September 24, 20223 yr 6 hours ago, atomheartbevo said: Turns out two protons are hard as fuck to keep from leaking out between a gap. Whodathunkit?
September 24, 20223 yr ...aaaaaand it's off. Still evaluating a rollback, but the launch attempt is canceled.
September 24, 20223 yr 22 hours ago, RamjetFDO said: Another week. Another test. Replaced/repaired (could never get a straight answer) the sensor that had been acting up. Fueled it up again, ran the tests. It's still leaking, but now below thresholds and the replaced/repaired sensor shows proper flow to the engine to cool it down pre-ignition. Next launch attempt is Tuesday, 9/27 at 10:37 CDT. While there was a claim of a successful test, I'm still more than a bit concerned at a leak rate that might leave excess H2 hanging about when those engines actually ignite. Those darn sensors! We keep replacing them and they keep saying there is a problem!? Well, let’s keep working to fix the symptom!
September 24, 20223 yr 1 hour ago, RamjetFDO said: ...aaaaaand it's off. Still evaluating a rollback, but the launch attempt is canceled. I thought they had reached the max number of rollbacks it could tolerate.
September 24, 20223 yr Author 22 minutes ago, RPM said: I thought they had reached the max number of rollbacks it could tolerate. They've nearly reached the max number of rollbacks the attention of the American public could tolerate.
September 26, 20223 yr Rolling back to the hangar tonight.Yup. https://blogs.nasa.gov/artemis/2022/09/26/nasa-to-roll-artemis-i-rocket-and-spacecraft-back-to-vab-tonight/
November 13, 20223 yr 43 minutes ago, RamjetFDO said: Still early, but 90% GO for Weds. Yeah, but what about the rocket and her sticky and/or leaky valves?
November 14, 20223 yr 18 hours ago, Captainant said: Yeah, but what about the rocket and her sticky and/or leaky valves? Oh, that only has a 23.6π!!1ONE789dickbutt% chance of working.
November 14, 20223 yr 10 minutes ago, RamjetFDO said: Oh, that only has a 23.6π!!1ONE789dickbutt% chance of working. A couple friends of mine work on the Artemis human systems here in Houston, I'm really pulling for this boondoggle to fly (successfully). But damn at what point do you think NASA will consider scrapping the whole rocket? The Orion capsule seems like they've worked out the gremlins now at least. Presuming Boeing figured out their software problems lol
November 14, 20223 yr 25 minutes ago, RamjetFDO said: Oh, that only has a 23.6π!!1ONE789dickbutt% chance of working. Yes, obviously I know what this measurement signifies but for everyone else can you explain the metric equivalent of 1 dickbutt? I see the window opens, more or less, right after midnight-CST on Wednesday morning. What's the professional opinion on here about what time would liftoff most likely happen given the window? Also, if there are more Boeing issues, has anyone there considered unplugging Artemis and then plugging it back in?
November 14, 20223 yr 2 hours ago, Captainant said: A couple friends of mine work on the Artemis human systems here in Houston, I'm really pulling for this boondoggle to fly (successfully). But damn at what point do you think NASA will consider scrapping the whole rocket? The Orion capsule seems like they've worked out the gremlins now at least. Presuming Boeing figured out their software problems lol Never. They will never scrap this launch. NASA will fly it or blow it up. They are not capable of slinking away in defeat. Now, having said that - they may redefine what "victory" means (i.e., *one* flight of this system) and then "graciously" turn over all data and control to the private sector. 1 hour ago, YGIFS said: Yes, obviously I know what this measurement signifies but for everyone else can you explain the metric equivalent of 1 dickbutt? I see the window opens, more or less, right after midnight-CST on Wednesday morning. What's the professional opinion on here about what time would liftoff most likely happen given the window? Also, if there are more Boeing issues, has anyone there considered unplugging Artemis and then plugging it back in? The window opens at the optimal time - that'll be the target. Whenever we created launch windows for Shuttle, they were completely dependent on the mission profile. Even when the "optimal" launch point (based on performance/planar steering/etc.) was in the middle of the window, we always targeted the *beginning* of the window because that gave you the most margin and time to resolve issues for a launch *sometime* in that window. Oh, and here's the latest employee at KSC Launch Control:
November 15, 20223 yr Roughly nine hours to go for tonight's launch attempt at 12:04am Central on Weds morning (11/16). The Mission Management Team gave their GO for tonight's attempt - Wx still holding at 90% good. Here's the official NASA YouTube broadcast link that will go live around 9:30pm tonight (Tues, 11/15):
November 15, 20223 yr At what point prior to launch should we determine if they are going to have the same issue as the last time?
November 15, 20223 yr 10 minutes ago, ABSR said: At what point prior to launch should we determine if they are going to have the same issue as the last time? When they start to introduce liquid hydrogen into the system. It's an incredibly small molecule that is liable to slip through the tiniest opening, and wouldn't you know it, a rocket built out of retrofitted parts is chock full of interconnects that increase the risk of a fuel leak that would scrub the launch like the last four or five times they've tried Edited November 15, 20223 yr by Captainant
November 16, 20223 yr What should one expect now at T-5 hours to go? How we looking, Flight? Here ya go: https://www.nasa.gov/content/artemis-i-launch-countdown-101So far. So good.
November 16, 20223 yr Seems like we've made it past all the tough checks... No safety limits breached and we've gotten deeper into the count than we normally do.... I want to believe edit: goddamnit the ground crew is approaching to "address a leak in the core stage replenish valve" Edited November 16, 20223 yr by Captainant
November 16, 20223 yr Dammit, Captain...this is why we can't have nice things! Red Team at the Path for hold. FUCK@
November 16, 20223 yr 7 minutes ago, YGIFS said: Dammit, Captain...this is why we can't have nice things! Red Team at the Path for hold. FUCK@ Could you imagine being the poor bastard that has to run out to 20,000 tons of liquid oxygen and hydrogen just to go turn a fuckin wrench??? They're running some crew out to retorque bolts on a LH2 replenishment valve WHILE THE STACK IS LOADED!!! Holy mother of Jesus edit: crew about to be walking onto camera in a bit. Should be something else to see people THAT CLOSE to so much potential energy Edited November 16, 20223 yr by Captainant
November 16, 20223 yr Bolts on the leaky LH2 refil valve have been torqued down, and the launch team has successfully cycled the valves which should unstick the countdown
November 16, 20223 yr Window opens at 1204am ... but the torque-fest will likely push the actual launch time to the right. Tbd.
November 16, 20223 yr Range is currently no go due to a radar failure. I'm sure they'll resolve soon.
November 16, 20223 yr Range reports that a bad ethernet switch caused the issue with the radar. They're now replacing the switch. Work expected to take 70 minutes.
November 16, 20223 yr Author 15 minutes ago, RamjetFDO said: Range reports that a bad ethernet switch caused the issue with the radar. They're now replacing the switch. As a former networking guy...
November 16, 20223 yr Just hit T-10, and stopped for the auto 30 minute delay. Or whatever the terminology is. But clock says 10:00, and the guy said no fucking way nothing happens for 30 more minutes in terms of countdown. But didn't sound too grave either.
November 16, 20223 yr Planned hold at T-10 minutes. Approximately 30 minute hold period. Range says the switch has been replaced.
November 16, 20223 yr Planned hold at T-10 minutes. Approximately 30 minute hold period. Range says the switch has been replaced. That’s good news I hope
November 16, 20223 yr Watching the NASA TV coverage makes me long for the subtle professionalism of my old Shuttle PAO pals. Although... still better than the SpaceX goobs. Guess it's just a sign of the times.Get off my launch pad! /oldman
November 16, 20223 yr LH2 and LO2 are 100% full. The torqued bolts seem to be holding the LH2 seal (within limits).Still waiting on Range switch replacement verification.
November 16, 20223 yr 18 minutes ago, RamjetFDO said: Planned hold at T-10 minutes. Approximately 30 minute hold period. Range says the switch has been replaced. why don't they just make it T-40 instead of T-10 and 30
November 16, 20223 yr why don't they just make it T-40 instead of T-10 and 30That 30 minute hold is approximate... and there are very specific items that happen when the clock starts at T-10.If something (like tonight) happens to extend that hold more than 30 minutes, T-10 remains unchanged regardless of when it starts. Did that help?
November 16, 20223 yr Author NASA's coverage is better than SpaceX, but holy fucking shit can they ditch the filler videos?
November 16, 20223 yr NASA's coverage is better than SpaceX, but holy fucking shit can they ditch the filler videos? Exactly what I was saying earlier. Sometimes silence and a view of the fucking launch vehicle is really nice. You don't have to fill every second with something stupid.
November 16, 20223 yr Range confirms switch replacement successful... but we remain at T-10. Launch time remains TBD for now.
November 16, 20223 yr best runtime commentary: https://arstechnica.com/science/2022/11/is-tonight-the-night-that-nasas-massive-sls-rocket-finally-takes-flight/?comments=1 currently on page 10
November 16, 20223 yr 5 minutes ago, RamjetFDO said: Exactly what I was saying earlier. Sometimes silence and a view of the fucking launch vehicle is really nice. You don't have to fill every second with something stupid. And at least fix your captions. We are drinking wine and laughing at all the mistakes. Wish I had taken some screenshots. Launch this fucker. Cabo's tracking means nothing. Where the hell is NORAD when ya need em? And if it fails we can blame Russia right?
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