(fake, whiney voice)
I hear lots and lots of people would love to see a golden rocket … a huge, shiny and beautiful rocket
… and everybody I talk to would like to see the letters of P,M,U,R and T on it
… just saying …
Looks like the launch window is at a nice time for some late evening viewing for us folks in Europe. But i also think there’s a high chance of a further delay.
Along with this not being a landing missing, the repeated previous delays have seriously dampened any possible excitement for the launch. Turns out liquid hydrogen is a pain in the ass.
I’ll nervously watch the launch if it happens. (And I’m someone permanently traumatized by watching Challenger when I was 7.)
I’m excited! I’ll tune in.
So will I. Been a long time since I saw a liftoff. If it goes as scheduled, it’ll be late afternoon for me.
NASA live coverage on YouTube
➜ https://www.youtube.com/live/m3kR2KK8TEs ■
I’m looking for a good mission timeline summary of the key events. I don’t need a picture. I’m looking for a list, like below (my notes). Any links, or do you have a list? Thanks in advance.
t=0 ➙ LAUNCH @ 2224Z = 1824R = 1524U
t + 00:00:09 ➙ Tower Clear, Initiate Roll/Pitch
t + 00:01:11 ➙ Max Q 1,061 MPH, Altitude 42,091’
t + 00:02:09 ➙ SRB separation, solid rocket boosters
t + 00:03:18 ➙ LAS jettison, launch abort system
t + 00:06:10 ➙ SRB Atlantic Splashdown
t + 00:08:03 ➙ Core Stage MECO, Main Engine Cut Off
t + 00:08:15 ➙ Core Stage / ICPS Separation, Interim Cryogenic Propulsion Stage
t + 00:49:49 ➙ ICPS Perigee Raise Maneuver
t + 01:47:50 ➙ ICPS Apogee Raise Burn
t + 02:08:23 ➙ Core Stage Pacific Splashdown
But more, both before launch and through to Integrity splashdown. Thanks again.
Here’s the official Before T=0 timeline:
L-10H50M: Launch team decides “go” or “no-go” to begin tanking the rocket
L-10H40M – L-10H35M: Core stage LOX transfer line chilldown
L-10H40M – L-9H55M: Core stage LH2 chilldown
L-10H25M – L-9H40M: Core stage LOX main propulsion system chilldown
L-9H55M – L-9H25M: Core stage LH2 slow fill start
L-9H40M – L-9H30M: Core stage LOX slow fill
L-9H30M – L-6H40M: Core stage LOX fast fill
L-9H25M – L-8H: Core stage LH2 fast fill
L-9H05M – L-8H30M: ICPS LH2 chilldown
L-8H30M – L-7H45M: ICPS LH2 fast fill start
L-8H – L-7H55M: Core stage LH2 topping
L-7H55M – terminal count: Core stage LH2 replenish
L-7H45M – L-7H20M: ICPS LH2 vent and relief test
L-7H20M – L-7H10M: ICPS LH2 tank topping start
L-7H05M – terminal count: ICPS LH2 replenish
L-6H40M – L-6H05M: Core stage LOX topping
L-6H40M – L-6H30M: ICPS LOX main propulsion system chilldown
L-6H30M – L-5H45M: ICPS LOX fast fill
L-6H05M – terminal count: Core stage LOX replenish
L-5H45M – L-5H30M: ICPS LOX vent and relief test
L-5H30M – L-5H10M: ICPS LOX topping
L-5H10M – terminal count: ICPS LOX replenish
L-5H10M: All stages replenish
T-6M: GLS go for core stage tank pressurization
T-5M57S: Core stage LH2 terminate replenish
T-4M40S: GLS is go for LH2 high flow bleed check
T-4M: Core stage LOX terminate replenish
T-3M30S: ICPS LOX terminate replenish
T-50S: ICPS LH2 terminate replenish
T-33S: GLS sends “go for automated launch sequencer” command
T-30S: Core stage flight computer to automated launching sequencer
T-12S: Hydrogen burn off igniters initiated
T-10S: GLS sends the command for core stage engine start
T-6.36S: RS-25 engines startup
T-0: Booster ignition, umbilical separation, and liftoff
I generally get my space-related info from The NASA Spaceflight Forums. There’s probably a Post T=0 timeline in there somewhere…
Thank you.
Thanks for the link. Despite some of my negativity about the whole thing, I’ll definitely be watching. Canadian Space Agency astronaut Jeremy Hansen will be one of the four aboard. Wishing them all a safe and memorable journey around the moon!
I’ll be watching too - with an immense amount of trepidation. I think doing this as a manned mission is a really bad idea. I’m mostly hoping for a scrub.
As I mentioned earlier, with the reorganization of some of the mission objectives, there’s no real reason based on either science or engineering for this to be a manned mission, to wit:
Precisely this.
What would be the point of Artemis II being unmanned? That was done with Artemis I. II is largely making sure all of the manned components of the system function as intended, which you can’t very well do if it is unmanned. That would be like Apollo 8 being an unmanned flight.
Thanks for the link. I will check in to it periodically but then once the launch starts I will walk out to see it in person. Hopefully as a larger craft in a darker light I will be able to see details, but I can’t see most generic-looking rockets clearly. When they launched the space shuttles, that was another story, as you could clearly tell that the outline of a shuttle was different from a generic rocket from where I’ve lived which has never been closer than 25 miles.
Having it manned it also probably important for PR. It generates a lot more public buzz and attention and breaks more manned-flight records than if it were unmanned.
In the past couple of years, I’ve determine that even if offered for free I wouldn’t take a space flight due to the danger.
Now, watching the cam inside the crew compartment is getting me a little claustrophobic just looking at it for a couple of minutes. Now I know I definitely wouldn’t take a free space flight (and that’s not even counting possible nausea.)
Well for one thing, the problems with the skip reentry or Artemis I were never solved so they are using an untried steeper reentry method at a MUCH higher speed than has ever been done before. Fuel leaks also continue to be a problem. Bottom line - I don’t have anywhere near the faith in NASA that I had 50 years ago.
We saw what focusing on PR did for the space program in 1986. I’d prefer not having to see something similar again.
I would say it leverages PR. If it goes well, it’s dandy. But if it goes badly, it goes very very badly. Not unlike the girl with the curl in the middle of her forehead.