RISAT-2BR1, 44857
Orbit data source: Space-Track
RISAT-2BR1, 44857 is a payload satellite owned by ISRO (IN) in LEO that was launched on Wed, 11 Dec 2019 UTC via a PSLV-QL launch vehicle from the Sirharikota (SRI). 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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44857 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
IN / INDRelated business
Manufacturer
ISRO
Mission
Operational Civil Radar Imaging
Bus & Motor
TECHSAR, Unknown motor
Mass
628 kg wet, 628 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Hex Cyl + 2 Pan + 1 Dish, Unknown HBR
Radar Cross Section
2.910 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 5 days ago
TLE from 5 days ago
0 RISAT-2BR1
1 44857U 19089F 26026.90282049 .00009666 00000-0 74255-3 0 9998
2 44857 36.9586 229.7348 0013633 106.4596 253.7645 15.01209588335955Epoch: 2026-01-26T21:40Z
TLE epoch observation values (Epoch: 2026-01-26T21:40:03.690Z)
Latitude
-0.00002°
Longitude
138.52749°
Altitude
564.945 km
Speed
7.579 km/s
True Right ascension
15h 18m 56s
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
06:03:03
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
575.542 km
Perigee altitude
556.608 km
Semi-major axis
6,944.212 km
Eccentricity
0.00136
Inclination
36.9586°
RAAN
229.7348°
Arg. of periapsis
106.4596°
True anomaly
253.61458°
Mean anomaly
253.7645°
Eccentric anomaly
253.68953°
Mean motion
3.75067 °/min
Orbital period
95.98 mins
BSTAR
0.00074255
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Other satellites on launch #89 in the year 2019 (2019-12-11 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.RISAT-2BR1 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 | 2026-02-01 15:11:57.450Z | 215.982° SW | 2026-02-01 15:14:57.450Z | 148.667° SSE | 28.153° | 2026-02-01 15:17:57.450Z | 99.489° ESE |
| 6 mins | 2026-02-01 16:52:57.450Z | 248.323° W | 2026-02-01 16:54:57.450Z | 207.658° SW | 38.405° | 2026-02-01 16:58:57.450Z | 100.742° ESE |
| 6 mins | 2026-02-01 18:33:57.450Z | 255.199° W | 2026-02-01 18:35:57.450Z | 212.841° SW | 33.514° | 2026-02-01 18:39:57.450Z | 123.609° SE |
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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