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 |
| 2025 Sep 15 17:56 | 2025 Sep 14 12:21:12 | 14.7745 | 0.00032 | 0.1611 | 83.5630 | 243.4873 | 0.99190 | – |
| 2025 Sep 12 17:57 | 2025 Sep 02 11:48:13 | 14.7718 | 0.00035 | 0.1671 | 82.2327 | 243.4873 | 0.99190 | – |
| 2025 Sep 11 17:57 | 2025 Sep 02 11:48:13 | 14.7718 | 0.00035 | 0.1671 | 82.2327 | 243.4873 | 0.99190 | – |
| 2025 Sep 10 17:56 | 2025 Sep 02 11:48:13 | 14.7718 | 0.00035 | 0.1671 | 82.2327 | 243.4873 | 0.99190 | – |
| 2025 Sep 08 17:57 | 2025 Sep 02 11:48:13 | 14.7718 | 0.00035 | 0.1671 | 82.2327 | 243.4873 | 0.99190 | – |
| 2025 Sep 07 17:56 | 2025 Sep 02 11:48:13 | 14.7718 | 0.00035 | 0.1671 | 82.2327 | 243.4873 | 0.99190 | – |
| 2025 Sep 06 20:41 | 2025 Sep 02 11:48:13 | 14.7718 | 0.00035 | 0.1671 | 82.2327 | 243.4873 | 0.99190 | – |
| 2025 Sep 03 17:57 | 2025 Sep 02 11:48:13 | 14.7718 | 0.00035 | 0.1671 | 82.2327 | 243.4873 | 0.99190 | – |
| 2025 Sep 02 17:56 | 2025 Aug 27 12:00:53 | 14.7704 | 0.00038 | 0.1700 | 82.4529 | 243.4873 | 0.99190 | – |
| 2025 Sep 01 17:56 | 2025 Aug 27 12:00:53 | 14.7704 | 0.00038 | 0.1700 | 82.4529 | 243.4873 | 0.99190 | – |
| 2025 Aug 31 17:56 | 2025 Aug 27 12:00:53 | 14.7704 | 0.00038 | 0.1700 | 82.4529 | 243.4873 | 0.99190 | – |
| 2025 Aug 30 17:56 | 2025 Aug 27 12:00:53 | 14.7704 | 0.00038 | 0.1700 | 82.4529 | 243.4873 | 0.99190 | – |
| 2025 Aug 29 17:56 | 2025 Aug 27 12:00:53 | 14.7704 | 0.00038 | 0.1700 | 82.4529 | 243.4873 | 0.99190 | – |
| 2025 Aug 28 17:57 | 2025 Aug 27 12:00:53 | 14.7704 | 0.00038 | 0.1700 | 82.4529 | 243.4873 | 0.99190 | – |
| 2025 Aug 27 17:56 | 2025 Aug 22 22:28:29 | 14.7693 | 0.00041 | 0.1723 | 81.3610 | 243.4873 | 0.99190 | – |
| 2025 Aug 26 17:56 | 2025 Aug 22 22:28:29 | 14.7693 | 0.00041 | 0.1723 | 81.3610 | 243.4873 | 0.99190 | – |
| 2025 Aug 25 17:56 | 2025 Aug 22 22:28:29 | 14.7693 | 0.00041 | 0.1723 | 81.3610 | 243.4873 | 0.99190 | – |
| 2025 Aug 24 17:56 | 2025 Aug 22 22:28:29 | 14.7693 | 0.00041 | 0.1723 | 81.3610 | 243.4873 | 0.99190 | – |
| 2025 Aug 23 17:56 | 2025 Aug 22 22:28:29 | 14.7693 | 0.00041 | 0.1723 | 81.3610 | 243.4873 | 0.99190 | – |
| 2025 Aug 22 17:56 | 2025 Aug 17 20:56:46 | 14.7681 | 0.00043 | 0.1748 | 79.1797 | 243.4873 | 0.99190 | – |