ASTRA 1B, 21139
Orbit data source: Space-Track
ASTRA 1B, 21139 is a payload satellite owned by SES (LU) in GEO that was launched on Sat, 02 Mar 1991 UTC via an ARIANE 44LP launch vehicle from the French Guiana (FRGUI). 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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21139 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Last TLE update
2 days ago
Origin
Manufacturer
GE/East Windsor
Mission
Non-operational Commercial Communications
Bus & Motor
AS5000, 2X LEROS 1
Mass
2,580 kg wet, 1,177 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Hex Poly + 2 Pan, 24.38 m
Radar Cross Section
18.796 m², Large (>1 m²)
Expand to show TLE details & history
TLE from 2 days ago
0 ASTRA 1B
1 21139U 91015A 25118.95850244 -.00000187 00000-0 00000+0 0 9992
2 21139 12.8544 25.1794 0012132 7.0471 174.1249 0.98512204112258Epoch: 2025-04-28T23:00Z
Definitive object data (Epoch: 2025-04-28T23:00:14.61Z)
Latitude
-0.28283°
Longitude
4.12236°
Altitude
36,338.549 km
Speed
3.053 km/s
True Right ascension
13h 45m 23s
True Declination
0° 16' 57"
Sunlit
Visualization TLE readout
Latitude
-1.67969°
Longitude
10.25138°
Altitude
36,338.912 km
Speed
3.053 km/s
Apparent Right ascension
14h 35m 37s
Apparent Declination
-6° 58' 33"
Sunlit
Visualization observer readout
Local Sidereal Time
07:45:31
Azimuth
87.341° E
Elevation
-14.068°
Doppler factor
1
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21139 neighbors
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Other satellites on launch #15 in the year 1991 (1991-03-02 UTC)
ASTRA 1B 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. |
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Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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