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 Mar 02 18:57 | 2026 Feb 26 12:21:30 | 14.8077 | 0.00062 | 0.0798 | 12.1547 | 193.2415 | 0.99185 | – |
| 2026 Mar 01 18:57 | 2026 Feb 26 12:21:30 | 14.8077 | 0.00062 | 0.0798 | 12.1547 | 193.2415 | 0.99185 | – |
| 2026 Feb 28 18:56 | 2026 Feb 26 12:21:30 | 14.8077 | 0.00062 | 0.0798 | 12.1547 | 193.2415 | 0.99185 | – |
| 2026 Feb 27 19:05 | 2026 Feb 26 12:21:30 | 14.8077 | 0.00062 | 0.0798 | 12.1547 | 193.2415 | 0.99185 | – |
| 2026 Feb 26 20:45 | 2026 Feb 26 12:21:30 | 14.8077 | 0.00062 | 0.0798 | 12.1547 | 193.2415 | 0.99185 | – |
| 2026 Feb 05 18:58 | 2026 Feb 02 06:24:42 | 14.8023 | 0.00053 | 0.0918 | 5.1811 | 193.2415 | 0.99185 | – |
| 2026 Feb 04 18:57 | 2026 Feb 02 06:24:42 | 14.8023 | 0.00053 | 0.0918 | 5.1811 | 193.2415 | 0.99185 | – |
| 2026 Feb 03 18:56 | 2026 Feb 02 06:24:42 | 14.8023 | 0.00053 | 0.0918 | 5.1811 | 193.2415 | 0.99185 | – |