Key statistics
Satellite IRS 1D at a glance.
Uptime
10245
Days in orbit
Revolutions
≈ 14.4
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.8
Latest
Satellite identification and parameters
Extended collection of information and parameters for IRS 1D.
Object identification
Identified? True
Debris? False
Object name: IRS 1D
International designator: 1997-057A
Object number (NORAD): 24971
Object ID (CCSDS): 24971
Country: INDIA (IND)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 100.323 minutes
Inclination: 98.8246 deg
SMA: 7151.985 km
Apoapsis: 810.555 km
Periapsis: 737.145 km
RAAN: 272.2372 deg
Eccentricy: 0.00513208
Argument of periapsis: 227.0447 deg
Mean anomaly: 132.6428 deg
Mean motion: 14.35366706 rev/day
Mean motion (dot): 0.00000289 rev/day2
B* drag term: 0.00011523147 1/REarth
Two-line elements (TLE)
Creation date: Oct. 16, 2025, 2:37 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 15, 2025, 4:15 p.m. UTC
TLE line 0: 0 IRS 1D
TLE line 1: 1 24971U 97057A 25288.67773776 .00000289 00000-0 11523-3 0 9990
TLE line 2: 2 24971 98.8246 272.2372 0051321 227.0447 132.6428 14.35366706467537
Live tracking on map
Real-time ground track for satellite IRS 1D.
In-orbit conjunctions
A list of the most updated potential collisions computed for object IRS 1D.
Associated space launch
IRS 1C and 1D (Indian Remote Sensing Satellite) were the second version of the series of indigenous state-of-art remote sensing satellites. Skipper was an international project initiated by BMDO to measure the bow-shock UV emissions from reentering bodies at different speeds and heights.
IRS 1D was lifted into orbit during the mission ‘PSLV | IRS-1D’, on board a PSLV space rocket.
The launch took place on Sept. 29, 1997, 4:47 a.m. from Satish Dhawan Space Centre First Launch Pad.
For more information about the launch, click the button.
PSLV | IRS-1D
Agency: N/A
Status: Launch Failure
Launch date: Sept. 29, 1997, 4:47 a.m. UTC
Rocket: PSLV
Launch pad: Satish Dhawan Space Centre First Launch Pad
Location: Satish Dhawan Space Centre, India
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