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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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<iframe src="https://www.satcat.com/sats-embedded/51287?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/51287?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

51287, 2021-118E

Orbit

GEO

Last TLE update

1 day ago

Origin

United States Air Force (US)

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

0°

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

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

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51287 neighbors

Authenticating...

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Other satellites on launch #118 in the year 2021 (2021-12-07 UTC)

STPSAT-6, 49817

LDPE-1, 49818

ATLAS 5 CENTAUR R/B, 49819

ATLAS 5 CENTAUR DEB, 50214

ASCENT Visibility forecast

Observer location: undefined°, undefined°

Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
676 mins	2025-07-09 14:19:29.487Z	107.327° ESE	2025-07-09 18:12:29.487Z	105.159° ESE	13.326°	2025-07-10 01:35:29.487Z	107.349° ESE
6 mins	2025-07-10 14:13:29.487Z	104.74° ESE	2025-07-10 14:19:29.487Z	104.667° ESE	10.053°	2025-07-10 14:19:29.487Z	104.667° ESE

Authenticating...

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Check out ASCENT, 51287 on other resources

View ASCENT, 51287 on NASA - NSSDCA Website

View ASCENT, 51287 on Heavens-Above

View ASCENT, 51287 on Keep Track

View ASCENT, 51287 on Celestrak

View ASCENT, 51287 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.