Key statistics
Satellite IRS P4 (OCEANSAT 1) at a glance.
Uptime
9539
Days in orbit
Revolutions
≈ 14.5
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
97.9
Latest
Satellite identification and parameters
Extended collection of information and parameters for IRS P4 (OCEANSAT 1).
Object identification
Identified? True
Debris? False
Object name: IRS P4 (OCEANSAT 1)
International designator: 1999-029C
Object number (NORAD): 25758
Object ID (CCSDS): 25758
Country: INDIA (IND)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 98.981 minutes
Inclination: 97.9261 deg
SMA: 7088.093 km
Apoapsis: 712.641 km
Periapsis: 707.275 km
RAAN: 172.2924 deg
Eccentricy: 0.0003785
Argument of periapsis: 129.9262 deg
Mean anomaly: 230.2269 deg
Mean motion: 14.54817937 rev/day
Mean motion (dot): 0.0000036 rev/day2
B* drag term: 0.00009361 1/REarth
Two-line elements (TLE)
Creation date: July 6, 2025, 2:36 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 6, 2025, 1:21 p.m. UTC
TLE line 0: 0 IRS P4 (OCEANSAT 1)
TLE line 1: 1 25758U 99029C 25187.55636777 .00000360 00000-0 93610-4 0 9997
TLE line 2: 2 25758 97.9261 172.2924 0003785 129.9262 230.2269 14.54817937383832
Live tracking on map
Real-time ground track for satellite IRS P4 (OCEANSAT 1).
In-orbit conjunctions
A list of the most updated potential collisions computed for object IRS P4 (OCEANSAT 1).
Associated space launch
IRS-P4 (Indian Remote Sensing Satellite) or Oceansat is the first indian satellite primarily built for Ocean applications. Kitsat (Korean Institute of Technology Satellite 3), renamed on orbit as Uribyol 3, was the first Korean satellite in true sense and was launched by an Indian PSLV-G (2) rocket in May 1999.
IRS P4 (OCEANSAT 1) was lifted into orbit during the mission ‘PSLV | IRS-P4 & Uribyol-3’, on board a PSLV space rocket.
The launch took place on May 26, 1999, 6:22 a.m. from Satish Dhawan Space Centre First Launch Pad.
For more information about the launch, click the button.
PSLV | IRS-P4 & Uribyol-3
Agency: N/A
Status: Launch Successful
Launch date: May 26, 1999, 6:22 a.m. UTC
Rocket: PSLV
Launch pad: Satish Dhawan Space Centre First Launch Pad
Location: Satish Dhawan Space Centre, India
...
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