Key statistics
Satellite IRS 1D at a glance.
Uptime
10197
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: 100.326 minutes
Inclination: 98.8169 deg
SMA: 7152.121 km
Apoapsis: 811.494 km
Periapsis: 736.478 km
RAAN: 224.4244 deg
Eccentricy: 0.0052443
Argument of periapsis: 6.8107 deg
Mean anomaly: 353.3779 deg
Mean motion: 14.35325758 rev/day
Mean motion (dot): 0.00000363 rev/day2
B* drag term: 0.00014078793 1/REarth
Two-line elements (TLE)
Creation date: Aug. 30, 2025, 3:38 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Aug. 29, 2025, 9:40 p.m. UTC
TLE line 0: 0 IRS 1D
TLE line 1: 1 24971U 97057A 25241.90288632 .00000363 00000-0 14079-3 0 9999
TLE line 2: 2 24971 98.8169 224.4244 0052443 6.8107 353.3779 14.35325758460828
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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