Orbital elements of SIRIUS W
| Launched | 26 August 1989 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | Sweden |
| NORAD ID | 20193 |
| Alternative names |
MARCOPOLO 1 |
| 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 Aug 23 17:56 | 2026 Aug 18 08:56:04 | 14.8416 | 0.00042 | 23.9926 | 65.7711 | 303.9706 | 0.99184 | – |
| 2026 Aug 22 17:56 | 2026 Aug 18 08:56:04 | 14.8416 | 0.00042 | 23.9926 | 65.7711 | 303.9706 | 0.99184 | – |
| 2026 Aug 21 17:56 | 2026 Aug 18 08:56:04 | 14.8416 | 0.00042 | 23.9926 | 65.7711 | 303.9706 | 0.99184 | – |
| 2026 Aug 20 17:57 | 2026 Aug 18 08:56:04 | 14.8416 | 0.00042 | 23.9926 | 65.7711 | 303.9706 | 0.99184 | – |
| 2026 Aug 19 17:57 | 2026 Aug 18 08:56:04 | 14.8416 | 0.00042 | 23.9926 | 65.7711 | 303.9706 | 0.99184 | – |
| 2026 Aug 18 17:56 | 2026 Aug 12 06:45:38 | 14.8401 | 0.00045 | 23.9957 | 65.1816 | 303.9706 | 0.99184 | – |
| 2026 Aug 17 17:56 | 2026 Aug 12 06:45:38 | 14.8401 | 0.00045 | 23.9957 | 65.1816 | 303.9706 | 0.99184 | – |
| 2026 Aug 16 17:56 | 2026 Aug 12 06:45:38 | 14.8401 | 0.00045 | 23.9957 | 65.1816 | 303.9706 | 0.99184 | – |
| 2026 Aug 15 17:57 | 2026 Aug 12 06:45:38 | 14.8401 | 0.00045 | 23.9957 | 65.1816 | 303.9706 | 0.99184 | – |
| 2026 Aug 14 17:56 | 2026 Aug 12 06:45:38 | 14.8401 | 0.00045 | 23.9957 | 65.1816 | 303.9706 | 0.99184 | – |
| 2026 Aug 13 17:57 | 2026 Aug 12 06:45:38 | 14.8401 | 0.00045 | 23.9957 | 65.1816 | 303.9706 | 0.99184 | – |
| 2026 Aug 12 17:56 | 2026 Aug 06 18:56:01 | 14.8393 | 0.00048 | 23.9986 | 62.9485 | 303.9706 | 0.99184 | – |
| 2026 Aug 11 17:56 | 2026 Aug 06 18:56:01 | 14.8393 | 0.00048 | 23.9986 | 62.9485 | 303.9706 | 0.99184 | – |
| 2026 Aug 10 17:56 | 2026 Aug 06 18:56:01 | 14.8393 | 0.00048 | 23.9986 | 62.9485 | 303.9706 | 0.99184 | – |
| 2026 Aug 09 17:57 | 2026 Aug 06 18:56:01 | 14.8393 | 0.00048 | 23.9986 | 62.9485 | 303.9706 | 0.99184 | – |
| 2026 Aug 08 17:57 | 2026 Aug 06 18:56:01 | 14.8393 | 0.00048 | 23.9986 | 62.9485 | 303.9706 | 0.99184 | – |
| 2026 Aug 07 17:57 | 2026 Aug 06 18:56:01 | 14.8393 | 0.00048 | 23.9986 | 62.9485 | 303.9706 | 0.99184 | – |
| 2026 Aug 06 17:57 | 2026 Jul 31 05:39:23 | 14.8379 | 0.00049 | 0.0019 | 60.9900 | 303.9706 | 0.99184 | – |
| 2026 Aug 05 17:56 | 2026 Jul 31 05:39:23 | 14.8379 | 0.00049 | 0.0019 | 60.9900 | 303.9706 | 0.99184 | – |
| 2026 Aug 04 17:57 | 2026 Jul 31 05:39:23 | 14.8379 | 0.00049 | 0.0019 | 60.9900 | 303.9706 | 0.99184 | – |
| 2026 Aug 03 17:56 | 2026 Jul 31 05:39:23 | 14.8379 | 0.00049 | 0.0019 | 60.9900 | 303.9706 | 0.99184 | – |
| 2026 Aug 02 17:57 | 2026 Jul 31 05:39:23 | 14.8379 | 0.00049 | 0.0019 | 60.9900 | 303.9706 | 0.99184 | – |
| 2026 Aug 01 17:57 | 2026 Jul 31 05:39:23 | 14.8379 | 0.00049 | 0.0019 | 60.9900 | 303.9706 | 0.99184 | – |
| 2026 Jul 31 17:56 | 2026 Jul 26 16:14:54 | 14.8369 | 0.00049 | 0.0042 | 60.6220 | 303.9706 | 0.99184 | – |
| 2026 Jul 30 17:57 | 2026 Jul 26 16:14:54 | 14.8369 | 0.00049 | 0.0042 | 60.6220 | 303.9706 | 0.99184 | – |
| 2026 Jul 29 17:57 | 2026 Jul 26 16:14:54 | 14.8369 | 0.00049 | 0.0042 | 60.6220 | 303.9706 | 0.99184 | – |
| 2026 Jul 28 17:57 | 2026 Jul 26 16:14:54 | 14.8369 | 0.00049 | 0.0042 | 60.6220 | 303.9706 | 0.99184 | – |
| 2026 Jul 27 17:57 | 2026 Jul 26 16:14:54 | 14.8369 | 0.00049 | 0.0042 | 60.6220 | 303.9706 | 0.99184 | – |