STPSAT-6
Launch
Launched on Dec 7, 2021 from Space Launch Complex 41, United States of America aboard a Atlas V 551.
Atlas V 551 | STP-3 →Live · TLE epoch 2026-10-23 21:32 UTC
Orbit class
GEO — Geostationary (~35,786 km, equatorial)
Operator
Space Test Program
Country
United States
Manufacturer
Northrop Grumman Innovation Systems
Launched
Dec 7, 2021
Mass
2,572 kg
Apogee
35,802 km
Perigee
35,787 km
Inclination
0.65°
Period
23.94 h
Altitude history
Apogee and perigee for STPSAT-6 across 148 days of archived orbital elements (150 element sets, one per day).
Trend
Stable
Change
+0.0 km
Rate
+0.00 km/day
Now
35788 × 35801 km
Apogee Perigee
Derived from our own archive of CelesTrak orbital elements, sampled every 3 hours. Short windows show drag and station-keeping; they are not a reentry prediction.
Launched with
One other catalogued object still in orbit from launch 2021-118 (Atlas V 551 | STP-3).
- ASCENT · 51287
Sources & further reading
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