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: 14 hours ago
TLE from 14 hours ago
0 IRS P4 (OCEANSAT 1)
1 25758U 99029C 25259.22134665 .00000464 00000-0 11769-3 0 9999
2 25758 97.9361 240.3067 0001531 304.2161 55.8892 14.54894534394272Epoch: 2025-09-16T05:18Z
TLE epoch observation values (Epoch: 2025-09-16T05:18:44.35Z)
Latitude
-0.00001°
Longitude
165.20715°
Altitude
712.085 km
Speed
7.5 km/s
True Right ascension
16h 01m 13s
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
12:10:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
707.868 km
Perigee altitude
705.699 km
Semi-major axis
7,084.92 km
Eccentricity
0.00015
Inclination
97.9361°
RAAN
240.3067°
Arg. of periapsis
304.2161°
True anomaly
55.90373°
Mean anomaly
55.8892°
Eccentric anomaly
55.89646°
Mean motion
3.63949 °/min
Orbital period
98.91 mins
BSTAR
0.00011769
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-09-16 21:57:57.623Z | 117.416° SE | 2025-09-16 22:00:57.623Z | 68.943° E | 24.462° | 2025-09-16 22:03:57.623Z | 19.658° NNE |
| 7 mins | 2025-09-16 23:35:57.623Z | 213.038° SW | 2025-09-16 23:38:57.623Z | 267.948° W | 26.819° | 2025-09-16 23:42:57.623Z | 325.509° NNW |
| 7 mins | 2025-09-17 11:36:57.623Z | 18.586° NNE | 2025-09-17 11:39:57.623Z | 122.595° SE | 44.214° | 2025-09-17 11:43:57.623Z | 188.126° SSW |
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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