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, 0.4 m
Radar Cross Section
0.231 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 21 hours ago
TLE from 21 hours ago
0 SARA
1 21578U 91050E 26284.14782295 .00000720 00000-0 16199-3 0 9996
2 21578 98.0822 329.7663 0003223 140.5874 285.5714 14.59271921863223Epoch: 2026-10-11T03:32Z
TLE epoch observation values (Epoch: 2026-10-11T03:32:51.902Z)
Latitude
64.95842°
Longitude
-120.79172°
Altitude
706.115 km
Speed
7.509 km/s
True Right ascension
20h 48m 40s
True Declination
64° 49' 31"
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
19:09:19
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
694.882 km
Perigee altitude
690.324 km
Semi-major axis
7,070.74 km
Eccentricity
0.00032
Inclination
98.0822°
RAAN
329.7663°
Arg. of periapsis
140.5874°
True anomaly
285.53582°
Mean anomaly
285.5714°
Eccentric anomaly
285.55361°
Mean motion
3.65045 °/min
Orbital period
98.62 mins
BSTAR
0.00016199
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-10-12 02:25:19.433Z | 126.57° SE | 2026-10-12 02:28:19.433Z | 81.448° E | 30.844° | 2026-10-12 02:32:19.433Z | 11.851° NNE |
| 6 mins | 2026-10-12 04:04:19.433Z | 227.314° WSW | 2026-10-12 04:06:19.433Z | 263.224° W | 25.392° | 2026-10-12 04:10:19.433Z | 320.994° NNW |
| 7 mins | 2026-10-12 16:02:19.433Z | 14.875° NNE | 2026-10-12 16:05:19.433Z | 116.377° SE | 85.416° | 2026-10-12 16:09:19.433Z | 192.023° SSW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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