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Spacecraft information: IRS-1B
Launch Details
| Launched | 28 August 1991 |
| Flight ended | – |
| Status | Non-operational |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | India |
| NORAD ID | 21688 |
| COSPAR ID | 1991-061A |
| Observing |
Current orbital elements
| Inclination | 99.413° |
| Eccentricity | 0.00252 |
| RA ascending node | 9.541 hr |
| Argument perigee | 90.482° |
| Mean anomaly | 298.618° |
| Orbital period | 103.014 min |
| Epoch of osculation | 15 May 2026, 23:24 |
Derived Quantities
| Min Altitude | 889.9 km |
| Mean Altitude | 908.3 km |
| Peak Altitude | 926.7 km |
Launched alongside
SL-3 R/BOrbital History
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