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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Edit Public Description
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: 13 hours ago
TLE from 13 hours ago
0 IRS P4 (OCEANSAT 1)
1 25758U 99029C 25365.88315560 .00001027 00000-0 24793-3 0 9991
2 25758 97.9490 341.6953 0002167 341.3867 18.7251 14.55085131409781Epoch: 2025-12-31T21:11Z
TLE epoch observation values (Epoch: 2025-12-31T21:11:44.643Z)
Latitude
-0.0001°
Longitude
-76.78639°
Altitude
710.62 km
Speed
7.501 km/s
True Right ascension
22h 46m 46s
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
10:02:55
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
707.7 km
Perigee altitude
704.63 km
Semi-major axis
7,084.302 km
Eccentricity
0.00022
Inclination
97.949°
RAAN
341.6953°
Arg. of periapsis
341.3867°
True anomaly
18.73307°
Mean anomaly
18.7251°
Eccentric anomaly
18.72909°
Mean motion
3.63997 °/min
Orbital period
98.9 mins
BSTAR
0.00024793
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-01-01 10:58:03.610Z | 25.956° NE | 2026-01-01 11:03:03.610Z | 116.18° SE | 34.418° | 2026-01-01 11:07:03.610Z | 171.163° S |
| 5 mins | 2026-01-01 12:38:03.610Z | 326.127° NNW | 2026-01-01 12:40:03.610Z | 295.997° NW | 18.259° | 2026-01-01 12:43:03.610Z | 253.859° W |
| 7 mins | 2026-01-01 22:06:03.610Z | 130.902° SE | 2026-01-01 22:09:03.610Z | 53.81° ENE | 34.328° | 2026-01-01 22:13:03.610Z | 0.699° NNE |
| 4 mins | 2026-01-01 23:45:03.610Z | 242.868° WSW | 2026-01-01 23:47:03.610Z | 273.836° WNW | 17.127° | 2026-01-01 23:49:03.610Z | 301.932° NW |
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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