The ULA Launch Readiness Review is GO to continue preps for Tuesday's launch of #AtlasV on a commercial mission for @SES_Satellites to deliver two large communications satellites into space. Launch time is 5:36pmEDT (2136 UTC). Live updates and webcast: bit.ly/av_ses
SFN Launch Schedule, updated September 29:Confirms launch window 21:36 to 22:16 UTC= 5:36 to 6:16 pm EDT
Liftoff is scheduled for 5:36 p.m. EDT (2136 UTC) from Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida. The daily launch window remains open for 45 minutes.
Welcome to Rollout Day for ULA's #AtlasV rocket and the #SES20 and #SES21 satellites riding in tandem to near-geosynchronous orbit tomorrow evening. Liftoff will occur from Space Launch Complex-41 at Cape Canaveral. Live updates: bit.ly/av_ses
The #AtlasV rocket and the #SES20 and #SES21 all-electric satellites stacked one on top of the other inside the payload fairing emerge from the assembly building as they make their way to the pad for Tuesday's launch: bit.ly/av_ses
#AtlasV will use three burns of Centaur over six hours to inject the #SES20 and #SES21 spacecraft into near-circular, near-geosynchronous orbits. This translates to minimal orbit raising by the spacecraft to reach their destination, enabling a more timely activation of services.
Our #AtlasV has arrived at its Cape Canaveral pad for Tuesday's launch of two @SES_Satellites commercial spacecraft that will relay TV channels to more than 100 million homes across America. Launch time is 5:36pmEDT (2136 UTC). Live updates and webcast: bit.ly/av_ses
The rollout seems to have been aborted. Atlas made it about halfway to the pad, paused, and began to return to the VIF... We even tried to help it by making it slightly downhill, (from the camera's perspective, at least).twitter.com/KSpaceAcademy/status/1576944557501009920
Quick timelapse from @NASASpaceflight's space coast live of the #AtlasV rollout (and partial rollback) ready for the launch of #SES20 and #SES21!
OK, that's cool. Space Coast Live is a good name. 🚀Atlas V SES-20 & 21🚀Falcon 9 Crew 5🚀F9 Booster 1073 (after Starlink 4-35)➡️nsf.live/spacecoast
The #AtlasV #SES20 #SES21 artwork is inspired by Vincent van Goghís "The Starry Night." To make the artwork come to life, stare at the animation on the left side for 20 seconds before looking at the night sky of the mission artwork.
Check out the visibility map for when and where you may see the #AtlasV #SES20 #SES21 launch along the East Coast of the US! Launch is scheduled for tomorrow at 5:36 p.m. EDT (2136 UTC) from Cape Canaveral. Launch info: bit.ly/av_ses
ULA is preparing to launch a pair of SES communication satellites atop the Mighty Atlas V in the 531 configuration.Itís not unusual to see a little water around SLC-41, but itís especially soggy after Hurricane Ian!Watch 24/7 with Space Coast Live: nsf.live/spacecoast
https://twitter.com/ulalaunch/status/1576192228288040963QuoteWatch a preview video of what you can expect during the #AtlasV rocket's flight of #SES20 #SES21 for @SES_Satellites. Learn more // bit.ly/av_sesWatch on YouTube // youtu.be/aLXZkrdPtDQ
Watch a preview video of what you can expect during the #AtlasV rocket's flight of #SES20 #SES21 for @SES_Satellites. Learn more // bit.ly/av_sesWatch on YouTube // youtu.be/aLXZkrdPtDQ
Nice summary by @ulalaunch of tomorrow's Atlas AV-099 launch profile, which will deploy two SES sats in a 34500 x 35000 km x 1.9 deg near-GEO following intermediate 163 x 611 km x 28.1 deg and 193 x 35000 km x 26.1 deg coast phases.
This is the first use of an Atlas V to deliver commercial sats directly to GEO. Four military-payload flights have done so, though.