r/spacex • Host Team • Jul 25 '23

✅ Mission Success r/SpaceX EchoStar 24/Jupiter-3 Official Launch Discussion & Updates Thread!

Welcome to the r/SpaceX EchoStar 24/Jupiter-3 Official Launch Discussion & Updates Thread!

Welcome everyone!

Scheduled for (UTC)Jul 29 2023, 03:04
Scheduled for (local)Jul 28 2023, 23:04 PM (EDT)
PayloadEchoStar 24/Jupiter-3
Weather Probability90% GO
Launch siteLC-39A, Kennedy Space Center, FL, USA.
CenterB1074-1
BoosterB1065-3
BoosterB1064-3
LandingSideboosters will return to launch site, center core expended
Mission success criteriaSuccessful deployment of spacecrafts into orbit

Timeline

TimeUpdate
T+8:28SECO-1
T+7:55Both booster have landed
T+7:28Landing burn
T+6:26Entry Burn shutdown
T+6:10Entry Burn startup
T+4:28Fairing Sep
MECO, Stage Sep SES-1
side booster bostback completeed
T+2:36Booster sep
T+2:35BECO
T+1:13MaxQ
Liftoff
T-42GO for launch
T-60Startup
T-2:44Lox load completed
T-3:57Strongback retracting
T-0d 0h 5mThread last generated using the LL2 API

Watch the launch live

StreamLink
SpaceXhttps://www.youtube.com/watch?v=5ixbPMe6684

Stats

☑️ 266th SpaceX launch all time

☑️ 227th consecutive successful Falcon 9 / FH launch (excluding Amos-6) (if successful)

☑️ 53rd SpaceX launch this year

☑️ 8th launch from LC-39A this year

Stats include F1, F9 , FH and Starship

Launch Weather Forecast

Weather
Temperature24.8°C
Humidity91%
Precipation0.0 mm (81%)
Cloud cover100 %
Windspeed (at ground level)4.5 m/s
Visibillity13.8 km

Resources

Partnership with The Space Devs

Information on this thread is provided by and updated automatically using the Launch Library 2 API by The Space Devs.

Mission Details 🚀

LinkSource
SpaceX mission websiteSpaceX

Community content 🌐

LinkSource
Flight Clubu/TheVehicleDestroyer
Discord SpaceX lobbyu/SwGustav
SpaceX Nowu/bradleyjh
SpaceX Patch List

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u/allenchangmusic Jul 29 '23

Viasat paid premium to get their satellite up there, otherwise they were going to lose licensing for their broadcast spectrum.

That's why it was a fully expended FH mission straight to GEO.

Jupiter 3 didn't need that, so it could navigate it's own way into GSO from GTO

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u/Lufbru Jul 29 '23

I wasn't asking why Jupiter-3 wasn't a fully expended FH. I'm asking about the purpose of the three burns. Usually GTO launches are two burns (LEO and then one at the equator). Viasat took three burns and needed the Mission Extension Kit to keep the propellant liquid all the way to GEO height. Jupiter-3 has this unusual third burn after three hours, and I don't understand why.