Spacecraft information: BLACK ARROW R/B
| Launched | 27 October 1971 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Woomera, Australia |
| Owner | United Kingdom |
| NORAD ID | 5581 |
| COSPAR ID | 1971-093B |
| Observing |
Current orbital elements
| Inclination | 82.036° |
| Eccentricity | 0.05062 |
| RA ascending node | 5.576 hr |
| Argument perigee | 9.836° |
| Mean anomaly | 351.227° |
| Orbital period | 102.840 min |
| Epoch of osculation | 02 Feb 2026, 12:02 |
Derived Quantities
| Min Altitude | 532.1 km |
| Mean Altitude | 900.1 km |
| Peak Altitude | 1268.2 km |
Orbital History
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