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: 21 hours ago
TLE from 21 hours ago
0 IRS P4 (OCEANSAT 1)
1 25758U 99029C 25305.43633278 .00000732 00000-0 17977-3 0 9993
2 25758 97.9428 284.2170 0003851 123.5880 236.5687 14.54981887400990Epoch: 2025-11-01T10:28Z
TLE epoch observation values (Epoch: 2025-11-01T10:28:19.152Z)
Latitude
0.00008°
Longitude
86.17075°
Altitude
713.914 km
Speed
7.498 km/s
True Right ascension
18h 56m 52s
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
02:53:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
709.228 km
Perigee altitude
703.772 km
Semi-major axis
7,084.637 km
Eccentricity
0.00039
Inclination
97.9428°
RAAN
284.217°
Arg. of periapsis
123.588°
True anomaly
236.53188°
Mean anomaly
236.5687°
Eccentric anomaly
236.55029°
Mean motion
3.63971 °/min
Orbital period
98.91 mins
BSTAR
0.00017977
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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 | 2025-11-02 11:48:22.164Z | 5.145° NNE | 2025-11-02 11:52:22.164Z | 251.351° W | 42.077° | 2025-11-02 11:56:22.164Z | 203.476° SW |
| 8 mins | 2025-11-02 22:54:22.164Z | 177.247° S | 2025-11-02 22:58:22.164Z | 296.748° NW | 41.992° | 2025-11-02 23:02:22.164Z | 341.966° N |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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