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 Feb 05 18:58 | 2026 Feb 02 10:26:47 | 82.0361 | 0.05012 | 3.2719 | 253.4163 | 101.1417 | 14.01313 | 7.243 |
| 2026 Feb 04 18:57 | 2026 Feb 02 10:26:47 | 82.0361 | 0.05012 | 3.2719 | 253.4163 | 101.1417 | 14.01313 | 7.243 |
| 2026 Feb 03 18:56 | 2026 Feb 02 10:26:47 | 82.0361 | 0.05012 | 3.2719 | 253.4163 | 101.1417 | 14.01313 | 7.243 |
| 2026 Feb 02 18:56 | 2026 Feb 02 10:26:47 | 82.0361 | 0.05012 | 3.2719 | 253.4163 | 101.1417 | 14.01313 | 7.243 |
| 2026 Feb 01 18:56 | 2026 Jan 27 12:12:41 | 82.0371 | 0.05012 | 3.6188 | 270.4478 | 101.1417 | 14.01313 | 7.243 |
| 2026 Jan 31 18:56 | 2026 Jan 27 12:12:41 | 82.0371 | 0.05012 | 3.6188 | 270.4478 | 101.1417 | 14.01313 | 7.243 |
| 2026 Jan 30 18:57 | 2026 Jan 27 12:12:41 | 82.0371 | 0.05012 | 3.6188 | 270.4478 | 101.1417 | 14.01313 | 7.243 |
| 2026 Jan 29 18:56 | 2026 Jan 27 12:12:41 | 82.0371 | 0.05012 | 3.6188 | 270.4478 | 101.1417 | 14.01313 | 7.243 |
| 2026 Jan 28 18:56 | 2026 Jan 27 12:12:41 | 82.0371 | 0.05012 | 3.6188 | 270.4478 | 101.1417 | 14.01313 | 7.243 |
| 2026 Jan 27 18:56 | 2026 Jan 22 10:32:24 | 82.0369 | 0.05011 | 3.9154 | 285.0064 | 101.1417 | 14.01313 | 7.243 |
| 2026 Jan 26 18:57 | 2026 Jan 22 10:32:24 | 82.0369 | 0.05011 | 3.9154 | 285.0064 | 101.1417 | 14.01313 | 7.243 |
| 2026 Jan 25 18:57 | 2026 Jan 22 10:32:24 | 82.0369 | 0.05011 | 3.9154 | 285.0064 | 101.1417 | 14.01313 | 7.243 |
| 2026 Jan 24 18:58 | 2026 Jan 22 10:32:24 | 82.0369 | 0.05011 | 3.9154 | 285.0064 | 101.1417 | 14.01313 | 7.243 |
| 2026 Jan 22 18:56 | 2026 Jan 22 10:32:24 | 82.0369 | 0.05011 | 3.9154 | 285.0064 | 101.1417 | 14.01313 | 7.243 |
| 2026 Jan 21 18:56 | 2026 Jan 16 14:01:00 | 82.0368 | 0.05015 | 4.2581 | 301.8265 | 101.1417 | 14.01313 | 7.243 |
| 2026 Jan 20 19:06 | 2026 Jan 16 14:01:00 | 82.0368 | 0.05015 | 4.2581 | 301.8265 | 101.1417 | 14.01313 | 7.243 |
| 2026 Jan 19 18:57 | 2026 Jan 16 14:01:00 | 82.0368 | 0.05015 | 4.2581 | 301.8265 | 101.1417 | 14.01313 | 7.243 |
| 2026 Jan 18 18:57 | 2026 Jan 16 14:01:00 | 82.0368 | 0.05015 | 4.2581 | 301.8265 | 101.1417 | 14.01313 | 7.243 |