LowEarth

ASCENT

NORAD 51287· COSPAR 2021-118E· Active satellite· Other / Unclassified· GEO
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 2026-10-22 18:02 UTC
Orbit class
GEO — Geostationary (~35,786 km, equatorial)
Operator
United States Government
Country
United States
Manufacturer
—
Launched
Dec 7, 2021
Mass
—
Apogee
35,568 km
Perigee
35,490 km
Inclination
4.49°
Period
23.71 h

Altitude history

Apogee and perigee for ASCENT across 59 days of archived orbital elements (60 element sets, one per day).

Trend
Raising
Change
+1.8 km
Rate
+0.03 km/day
Now
35490 × 35568 km
355283556835488Aug 26Oct 24
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).

Sources & further reading

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