Graham Sutherland / PolynomialArtemis II launch is approaching T-20m until launch!
RF folks: am I right in thinking that the three big masts surrounding the launch pad are supporting big helical antennas on the top? big white corkscrew looking things pointing directly up.
speaking of which it looks like they got a radio glitch on the telemetry, a single sample lost to 5s of radio lock loss (0.1Hz transmit period). they're on a hold to investigate but have concluded that it's not a violation.
checks complete, radio lock restored, no constraints, hold cleared, everyone reports go for T-10m to launch!
crew's response to go check was "FULL SEND!", gotta love it
seems it took them a minute to do some busywork but they just continued T-10m
"somebody asked if there's a launch button and there certainly is not" gotta love the public lol
they retracted the walkway. launch abort system is armed, liquid hydrogen pressurisation is underway.
final checks underway on the RS25 cryo engines. just T-3m30 now
why is the gimbal test cute 😂 wiggle wiggle
all systems go, T-60s to launch
ALS takeover!
just a few seconds now
approaching max-Q
throttle down to 85%, SRBs separated
fairing jettisoned, they're going strong!
all four engines made it all the way to MECO! always nice to get nominal when you only need 3/4 to get you there
core stage separation was one hell of a view
onboard camera feeds seem to be a bit iffy, but otherwise everything looks good
250 miles from earth
loving the KSP style navball in mission control
they've been triple checking the power systems because one of the battery temperatures read way off before launch due to what they are fairly sure is a sensor failure. all looks good though.
solar arrays are deploying. once they're out and locked they'll be fully out of the ascent stage and will switch to Abort To Orbit (ATO) mode
"we're happy to report that Jeremy has the O2 sensors on" good to know, thanks Jeremy
ground showing 7 second error between the MET clocks on Interim Cryogenic Propulsion Stage (ICPS) and another system (I missed the name, sorry), but crew reports their end shows them in perfect alignment.
if you're familiar with doing a circularisation burn at apoapsis in KSP, that's essentially what we're coming up on.
(got those mixed up for a moment! they're coming up on apoapsis, burning to raise periapsis)
"we don't burn at perigee, we burn a bit earlier, around apogee" well that's probably a good thing given that perigee is currently somewhere near the ground
just broke 1000 miles from earth!
mission control calling in checks to confirm go for MCC
broadcast is showing other clips now, bit annoying. I was hoping to see the solar panels lock into the forward position ready for ICPS burn
someone surprised the host lol
solar arrays locked in forward orientation, we have ICPS stage ignition, RL10 engine nominal, perigee raise maneuver burn underway!
just a 26 second burn for circularisation, doesn't take much once that main engine mass is gone.
ROTOPE~1 ⭐️@gsuberland also known as a kilomile (km)
Nav@gsuberland Lithobraking=BAD!
Frank Barton@nav @gsuberland id forgotten about that term… I need to go play more kerbal
@fbarton @gsuberland Are you aware of the Fully Autonomous Contingency Expedited Planetary Activated Lithobraking Manoeuvre?
artemist@gsuberland burning at apotheosis
joat@gsuberland the NASA feed does actually look quite like KSP because of the simulated view
@gsuberland I wonder how many people have an understanding of orbital dynamics NOT because of any formal training, but just from playing KSP.
Joshua Barretto@gsuberland Victor Glover just floating in the crew module with a mouse pulling the little burn tag until the apogee and perigee look roughly the same and then screaming at the expected burn time
F4GRX Sébastien@gsuberland what reading was off? voltage? current? temperature? they're probably sure of what they do but thats a bit worrying.
@f4grx temperature. the sensor reading was so far off they knew it was sensor failure though.
Charles J Gervasi ⚡🛡️🥥@gsuberland @f4grx A temperature sensor out of range sounds like a typical problem I deal with at work, except it's not life-and-death. It would be so intense to be working on something like this.
gaytabase@gsuberland smh you can do that in a veyron
Ret@gsuberland lucky fuckers
Phil M0OFX@gsuberland also known as a good night's sleep?
Multi Purr Puss 
@gsuberland i wonder, could Elmo/Starlink pull it off? (edit: the live streaming)
@platymew I'd prefer to strap him to the side of it personally
@gsuberland same here 🖖 🤣 🍻
@gsuberland You're probably aware; "we Germans" have an idiom/a saying - "Ich will Den auf den Mond schießen!" - [i wanna shoot this guy to the moon.] 🤣 (edit: uppercase)
Human Brain Enthusiast@gsuberland someone needs to upgrade their WiFi
@thomasfuchs @gsuberland I'm so sad they probably dont have S-band telemetry like CuriousMarc decoded for apollo. Would be cool to track by rf. even a single cw beacon.
Other-worldly Hugh@gsuberland I first read this as “all four astronauts” and thought the second half was extremely cutthroat
@gsuberland pillhead shouting NOMINAL at a rave
@gsuberland beautiful staging
@gsuberland booster sep
@gsuberland what a sight. shuttle/saturn combo in hd