IRS 1B

retiredleo

NORAD / COSPAR21688 / 1991-061A

ConstellationUNCLASSIFIED

Object typePAYLOAD

Country / ownerIndia

OperatorVarious

Launch date29 Aug 1991

Launch siteN/A

Launch vehicleN/A

Decay dateIn orbit

Period103.01 min

Inclination99.41°

Apoapsis919 km

Periapsis883 km

Mean altitude901 km

Semi-major axis7272 km

Eccentricity0.00249

Latitude—

Longitude—

Altitude—

Velocity—

Footprint area—

TLE epoch9/8/2026, 2:03:50 PM

SourceSpace-Track

1 21688U 91061A   26251.58600601 -.00000239  00000-0 -13510-3 0  9993
2 21688  99.4143 261.6220 0024870 135.5051 335.5577 13.97885320680147