Key statistics
Satellite IRS 1D at a glance.
Uptime
10141
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: 100.328 minutes
Inclination: 98.8098 deg
SMA: 7152.213 km
Apoapsis: 811.572 km
Periapsis: 736.583 km
RAAN: 167.1836 deg
Eccentricy: 0.0052424
Argument of periapsis: 169.3964 deg
Mean anomaly: 190.8338 deg
Mean motion: 14.35298179 rev/day
Mean motion (dot): 0.00000129 rev/day2
B* drag term: 0.000060134 1/REarth
Two-line elements (TLE)
Creation date: July 4, 2025, 10:26 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 4, 2025, 8:31 p.m. UTC
TLE line 0: 0 IRS 1D
TLE line 1: 1 24971U 97057A 25185.85519543 .00000129 00000-0 60134-4 0 9992
TLE line 2: 2 24971 98.8098 167.1836 0052424 169.3964 190.8338 14.35298179452781
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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