Orbital elements of PROSPERO
| Launched | 27 October 1971 |
| Flight ended | – |
| Launch site | Woomera, Australia |
| Owner | United Kingdom |
| NORAD ID | 5580 |
| Alternative names |
BLACK ARROW |
| Date fetched |
Epoch osculation |
Inc. [°] |
Ecc. | RA asc node [hr] |
Arg Peri. [°] |
Mean anom [°] |
Mean motion [rev/day] |
Abs. mag |
| Date fetched |
Epoch osculation |
Inc. [°] |
Ecc. | RA asc node [hr] |
Arg Peri. [°] |
Mean anom [°] |
Mean motion [rev/day] |
Abs. mag |
| 2026 May 29 17:57 | 2026 May 25 22:53:50 | 82.0373 | 0.05003 | 20.6900 | 290.9514 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 28 17:56 | 2026 May 25 22:53:50 | 82.0373 | 0.05003 | 20.6900 | 290.9514 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 27 17:57 | 2026 May 25 22:53:50 | 82.0373 | 0.05003 | 20.6900 | 290.9514 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 26 17:57 | 2026 May 25 22:53:50 | 82.0373 | 0.05003 | 20.6900 | 290.9514 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 25 17:57 | 2026 May 20 22:57:59 | 82.0371 | 0.05004 | 20.9825 | 305.3071 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 24 17:57 | 2026 May 20 22:57:59 | 82.0371 | 0.05004 | 20.9825 | 305.3071 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 23 17:58 | 2026 May 20 22:57:59 | 82.0371 | 0.05004 | 20.9825 | 305.3071 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 22 17:57 | 2026 May 20 22:57:59 | 82.0371 | 0.05004 | 20.9825 | 305.3071 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 21 17:57 | 2026 May 20 22:57:59 | 82.0371 | 0.05004 | 20.9825 | 305.3071 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 20 17:57 | 2026 May 16 05:53:22 | 82.0371 | 0.05007 | 21.2583 | 318.8461 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 19 17:58 | 2026 May 16 05:53:22 | 82.0371 | 0.05007 | 21.2583 | 318.8461 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 18 17:57 | 2026 May 16 05:53:22 | 82.0371 | 0.05007 | 21.2583 | 318.8461 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 17 17:57 | 2026 May 16 05:53:22 | 82.0371 | 0.05007 | 21.2583 | 318.8461 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 16 17:56 | 2026 May 16 05:53:22 | 82.0371 | 0.05007 | 21.2583 | 318.8461 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 15 17:57 | 2026 May 10 12:49:38 | 82.0373 | 0.05010 | 21.5926 | 335.2451 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 14 17:58 | 2026 May 10 12:49:38 | 82.0373 | 0.05010 | 21.5926 | 335.2451 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 13 17:58 | 2026 May 10 12:49:38 | 82.0373 | 0.05010 | 21.5926 | 335.2451 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 12 17:58 | 2026 May 10 12:49:38 | 82.0373 | 0.05010 | 21.5926 | 335.2451 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 11 17:56 | 2026 May 10 12:49:38 | 82.0373 | 0.05010 | 21.5926 | 335.2451 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 10 17:57 | 2026 May 10 12:49:38 | 82.0373 | 0.05010 | 21.5926 | 335.2451 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 09 17:57 | 2026 May 05 00:54:20 | 82.0379 | 0.05014 | 21.9144 | 351.0099 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 08 17:57 | 2026 May 05 00:54:20 | 82.0379 | 0.05014 | 21.9144 | 351.0099 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 07 17:58 | 2026 May 05 00:54:20 | 82.0379 | 0.05014 | 21.9144 | 351.0099 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 06 17:57 | 2026 May 05 00:54:20 | 82.0379 | 0.05014 | 21.9144 | 351.0099 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 05 17:57 | 2026 May 05 00:54:20 | 82.0379 | 0.05014 | 21.9144 | 351.0099 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 04 17:57 | 2026 Apr 30 14:40:56 | 82.0384 | 0.05017 | 22.1734 | 3.6968 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 03 17:57 | 2026 Apr 30 14:40:56 | 82.0384 | 0.05017 | 22.1734 | 3.6968 | 63.8817 | 14.01567 | 7.243 |
| 2026 May 02 17:57 | 2026 Apr 30 14:40:56 | 82.0384 | 0.05017 | 22.1734 | 3.6968 | 63.8817 | 14.01567 | 7.243 |