IRS P4 (OCEANSAT 1), 25758
Orbit data source: Space-Track
IRS P4 (OCEANSAT 1), 25758 is a payload satellite owned by ISRO (IN) in SSO that was launched on Wed, 26 May 1999 UTC via a PSLV 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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25758 intel report (Beta)
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Identifier
Orbit
Country
IN / INDRelated business
Manufacturer
ISAC/HAL
Mission
Non-operational Civil Imaging
Bus & Motor
IRS, AOCS
Mass
1,036 kg wet, 952 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 5.8 m
Radar Cross Section
12.382 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 4 hours ago
TLE from 4 hours ago
0 IRS P4 (OCEANSAT 1)
1 25758U 99029C 26092.88689697 .00000748 00000-0 18265-3 0 9990
2 25758 97.9637 69.3115 0003741 45.6220 314.5284 14.55215473423169Epoch: 2026-04-02T21:17Z
TLE epoch observation values (Epoch: 2026-04-02T21:17:07.898Z)
Latitude
-0.00001°
Longitude
-81.20034°
Altitude
709.792 km
Speed
7.502 km/s
True Right ascension
04h 37m 14s
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
06:35:56
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
708.392 km
Perigee altitude
703.092 km
Semi-major axis
7,083.879 km
Eccentricity
0.00037
Inclination
97.9637°
RAAN
69.3115°
Arg. of periapsis
45.622°
True anomaly
314.49783°
Mean anomaly
314.5284°
Eccentric anomaly
314.51312°
Mean motion
3.64029 °/min
Orbital period
98.89 mins
BSTAR
0.00018265
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Other satellites on launch #29 in the year 1999 (1999-05-26 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.IRS P4 (OCEANSAT 1) 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-04-03 11:03:54.765Z | 19.751° NNE | 2026-04-03 11:07:54.765Z | 119.164° SE | 42.745° | 2026-04-03 11:11:54.765Z | 183.99° SSW |
| 8 mins | 2026-04-03 22:09:54.765Z | 154.569° SSE | 2026-04-03 22:13:54.765Z | 45.153° ENE | 42.143° | 2026-04-03 22:17:54.765Z | 353.469° N |
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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