SARA, 21578
Orbit data source: Space-Track
SARA, 21578 is a payload satellite owned by ESIEESPACE (FR) in SSO that was launched on Wed, 17 Jul 1991 UTC via an ARIANE 40 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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21578 intel report (Beta)
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Identifier
Orbit
Country
FRRelated business
Manufacturer
ESIEESPACE
Mission
Amateur Astronomy
Bus & Motor
SARA, Unknown motor
Mass
18 kg wet, 18 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Hex Poly, 0.2 m
Radar Cross Section
0.231 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 SARA
1 21578U 91050E 26171.40726450 .00000571 00000-0 13086-3 0 9997
2 21578 98.0947 219.8839 0003441 134.0287 240.3829 14.59138850846784Epoch: 2026-06-20T09:46Z
TLE epoch observation values (Epoch: 2026-06-20T09:46:27.652Z)
Latitude
14.20095°
Longitude
162.59485°
Altitude
699.415 km
Speed
7.507 km/s
True Right ascension
14h 31m 19s
True Declination
14° 07' 07"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
23:09:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
695.467 km
Perigee altitude
690.6 km
Semi-major axis
7,071.17 km
Eccentricity
0.00034
Inclination
98.0947°
RAAN
219.8839°
Arg. of periapsis
134.0287°
True anomaly
240.34863°
Mean anomaly
240.3829°
Eccentric anomaly
240.36576°
Mean motion
3.65011 °/min
Orbital period
98.63 mins
BSTAR
0.00013086
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Other satellites on launch #50 in the year 1991 (1991-07-17 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.SARA Visibility forecast
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-06-22 14:58:55.295Z | 59.902° ENE | 2026-06-22 15:00:55.295Z | 87.619° E | 15.782° | 2026-06-22 15:03:55.295Z | 129.085° SE |
| 7 mins | 2026-06-22 16:35:55.295Z | 354.547° N | 2026-06-22 16:38:55.295Z | 294.224° NW | 36.38° | 2026-06-22 16:42:55.295Z | 217.047° SW |
| 4 mins | 2026-06-23 02:04:55.295Z | 81.303° E | 2026-06-23 02:05:55.295Z | 65.708° ENE | 16.639° | 2026-06-23 02:08:55.295Z | 25.026° NE |
| 7 mins | 2026-06-23 03:39:55.295Z | 191.138° SSW | 2026-06-23 03:42:55.295Z | 247.716° W | 36.665° | 2026-06-23 03:46:55.295Z | 332.167° NNW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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