ULA's Atlas V flew the Space Force's STP-3 mission, delivering the STPSat-6 satellite and the LDPE-1 rideshare payload directly to geosynchronous orbit. At just over 7 hours to spacecraft separation, it was ULA's longest-duration mission to date, testing nuclear detonation detection, space domain awareness and laser communication technology.
- Outcome
- Success
- Orbit
- Direct-GEO
- Geostationary orbit
- Payload to orbit
- 1.5 T (est.)
- Flight
- 12th
- of 23 Atlas V 551 flights
- Date and time
- 7 December 2021, 10:19 UTC
- Rocket
- Atlas V 551
- Builder
- ULA
- Launch site
- Space Launch Complex 41, Cape Canaveral SFS, FL, USA
- Payload
- Dedicated Rideshare
- International designator
- 2021-118
- Launches in 2021
- 127th of 146
See it in orbit
Space Atlas shows the satellites and rocket stages from this launch in 3D.
View satellites in Space Atlas