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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 | 99.406° |
| Eccentricity | 0.00247 |
| RA ascending node | 16.942 hr |
| Argument perigee | 32.833° |
| Mean anomaly | 21.797° |
| Orbital period | 103.018 min |
| Epoch of osculation | 14 Sep 2025, 23:24 |
Derived Quantities
| Min Altitude | 890.6 km |
| Mean Altitude | 908.5 km |
| Peak Altitude | 926.5 km |
Orbital History
Drag the graphs below left or right to change the time range, or use your scroll wheel to zoom in or out.
Launched alongside
SL-3 R/B