OSCAR 22 (UOSAT 5), 21575
Orbit data source: Space-Track
OSCAR 22 (UOSAT 5), 21575 is a payload satellite owned by SSTL (UK) 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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21575 intel report (Beta)
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Identifier
Orbit
Country
UKRelated business
Manufacturer
SSTL
Mission
Non-operational Commercial Communications
Bus & Motor
UOSAT, Unknown motor
Mass
48 kg wet, 48 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Hex Poly, 0.5 m
Radar Cross Section
0.299 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 20 hours ago
TLE from 20 hours ago
0 OSCAR 22 (UOSAT 5)
1 21575U 91050B 26284.16278769 .00000177 00000-0 66596-4 0 9994
2 21575 98.3380 350.1292 0007208 175.1586 184.9675 14.42410664851269Epoch: 2026-10-11T03:54Z
TLE epoch observation values (Epoch: 2026-10-11T03:54:24.856Z)
Latitude
-0.00001°
Longitude
-88.23388°
Altitude
758.622 km
Speed
7.472 km/s
True Right ascension
23h 20m 31s
True Declination
0° 00' 00"
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
18:04:17
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
752.792 km
Perigee altitude
742.52 km
Semi-major axis
7,125.793 km
Eccentricity
0.00072
Inclination
98.338°
RAAN
350.1292°
Arg. of periapsis
175.1586°
True anomaly
184.96035°
Mean anomaly
184.9675°
Eccentric anomaly
184.96393°
Mean motion
3.60822 °/min
Orbital period
99.77 mins
BSTAR
0.000066596
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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.OSCAR 22 (UOSAT 5) 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-10-12 03:22:28.116Z | 104.255° ESE | 2026-10-12 03:25:28.116Z | 61.749° ENE | 20.61° | 2026-10-12 03:28:28.116Z | 21.903° NNE |
| 8 mins | 2026-10-12 05:00:28.116Z | 196.202° SSW | 2026-10-12 05:03:28.116Z | 254.616° W | 45.685° | 2026-10-12 05:08:28.116Z | 334.333° NNW |
| 8 mins | 2026-10-12 17:07:28.116Z | 25.812° NE | 2026-10-12 17:10:28.116Z | 74.347° E | 55.801° | 2026-10-12 17:15:28.116Z | 179.478° S |
| 4 mins | 2026-10-12 18:47:28.116Z | 320.392° NNW | 2026-10-12 18:49:28.116Z | 292.606° NW | 16.332° | 2026-10-12 18:51:28.116Z | 266.573° W |
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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