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ASCENT, 51287

Orbit data source: Space-Track

ASCENT, 51287 is a payload satellite owned by AFRL/RV (US) in GEO that was launched on Tue, 07 Dec 2021 UTC via an ATLAS V 551 launch vehicle from the Air Force Eastern Test Range (AFETR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

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Identifier
51287, 2021-118E
Orbit
GEO
Last TLE update
1 day ago
Origin
Manufacturer
Blue Canyon
Mission
Operational Defense Technology
Bus & Motor
CUBESAT 12U, Unknown motor
Mass
~25 kg wet, ~25 kg dry
Launch date (UTC)
2021-12-07 (4 years ago)
Launch vehicle
ATLAS V 551
Launch site
Air Force Eastern Test Range (AFETR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Box, 0.3 m
Radar Cross Section
0.080 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 1 day ago
0 ASCENT
1 51287U 21118E   25189.55687006 -.00000152  00000-0  00000+0 0  9996
2 51287   3.2979  81.7892 0005986  90.0555 269.6601  1.01228035 12849
Epoch: 2025-07-08T13:21Z
TLE epoch observation values (Epoch: 2025-07-08T13:21:53.573Z)
Latitude
Longitude
-45.78326°
Altitude
35,520.201 km
Speed
3.084 km/s
True Right ascension
05h 25m 45s
True Declination
0° 00' 00"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
1.08105°
Longitude
-26.80381°
Altitude
35,512.031 km
Speed
3.085 km/s
Apparent Right ascension
07h 06m 46s
Apparent Declination
-4° 42' 09"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
02:30:07
Azimuth
107.312° ESE
Elevation
12.666°
Doppler factor
1
Orbital elements
Apogee altitude
35,546.789 km
Perigee altitude
35,496.626 km
Semi-major axis
41,899.845 km
Eccentricity
0.0006
Inclination
3.2979°
RAAN
81.7892°
Arg. of periapsis
90.0555°
True anomaly
Unknown
Mean anomaly
269.6601°
Eccentric anomaly
Unknown
Mean motion
0.25306 °/min
Orbital period
1,422.58 mins
BSTAR
0
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51287 neighbors
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Other satellites on launch #118 in the year 2021 (2021-12-07 UTC)

ASCENT Visibility forecast

Observer location: undefined°, undefined°

Span
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Start Az.
Max El. time (UTC)
Max El. Az.
Max El.
End time (UTC)
End Az.
676 mins2025-07-09 14:19:29.487Z107.327° ESE2025-07-09 18:12:29.487Z105.159° ESE13.326°2025-07-10 01:35:29.487Z107.349° ESE
6 mins2025-07-10 14:13:29.487Z104.74° ESE2025-07-10 14:19:29.487Z104.667° ESE10.053°2025-07-10 14:19:29.487Z104.667° ESE
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