Orbital elements of SIRIO
| Launched | 24 August 1977 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | Italy |
| NORAD ID | 10294 |
| 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 Dec 29 18:56 | 2025 Dec 25 19:20:27 | 7.6112 | 0.00049 | 20.0317 | 159.5992 | 0.4077 | 1.00272 | – |
| 2025 Dec 28 18:57 | 2025 Dec 25 19:20:27 | 7.6112 | 0.00049 | 20.0317 | 159.5992 | 0.4077 | 1.00272 | – |
| 2025 Dec 27 18:57 | 2025 Dec 25 19:20:27 | 7.6112 | 0.00049 | 20.0317 | 159.5992 | 0.4077 | 1.00272 | – |
| 2025 Dec 26 18:56 | 2025 Dec 25 19:20:27 | 7.6112 | 0.00049 | 20.0317 | 159.5992 | 0.4077 | 1.00272 | – |
| 2025 Dec 25 18:57 | 2025 Dec 19 22:11:00 | 7.6249 | 0.00049 | 20.0347 | 161.2671 | 0.4077 | 1.00272 | – |
| 2025 Dec 24 18:56 | 2025 Dec 19 22:11:00 | 7.6249 | 0.00049 | 20.0347 | 161.2671 | 0.4077 | 1.00272 | – |
| 2025 Dec 23 18:56 | 2025 Dec 19 22:11:00 | 7.6249 | 0.00049 | 20.0347 | 161.2671 | 0.4077 | 1.00272 | – |
| 2025 Dec 22 18:57 | 2025 Dec 19 22:11:00 | 7.6249 | 0.00049 | 20.0347 | 161.2671 | 0.4077 | 1.00272 | – |
| 2025 Dec 21 18:57 | 2025 Dec 19 22:11:00 | 7.6249 | 0.00049 | 20.0347 | 161.2671 | 0.4077 | 1.00272 | – |
| 2025 Dec 20 18:57 | 2025 Dec 19 22:11:00 | 7.6249 | 0.00049 | 20.0347 | 161.2671 | 0.4077 | 1.00272 | – |
| 2025 Dec 19 18:57 | 2025 Dec 11 22:25:53 | 7.6437 | 0.00051 | 20.0388 | 163.0136 | 0.4077 | 1.00272 | – |
| 2025 Dec 18 18:57 | 2025 Dec 11 22:25:53 | 7.6437 | 0.00051 | 20.0388 | 163.0136 | 0.4077 | 1.00272 | – |
| 2025 Dec 17 18:58 | 2025 Dec 11 22:25:53 | 7.6437 | 0.00051 | 20.0388 | 163.0136 | 0.4077 | 1.00272 | – |
| 2025 Dec 16 18:57 | 2025 Dec 11 22:25:53 | 7.6437 | 0.00051 | 20.0388 | 163.0136 | 0.4077 | 1.00272 | – |
| 2025 Dec 15 18:58 | 2025 Dec 11 22:25:53 | 7.6437 | 0.00051 | 20.0388 | 163.0136 | 0.4077 | 1.00272 | – |
| 2025 Dec 14 18:56 | 2025 Dec 11 22:25:53 | 7.6437 | 0.00051 | 20.0388 | 163.0136 | 0.4077 | 1.00272 | – |
| 2025 Dec 13 18:56 | 2025 Dec 11 22:25:53 | 7.6437 | 0.00051 | 20.0388 | 163.0136 | 0.4077 | 1.00272 | – |
| 2025 Dec 12 18:57 | 2025 Dec 11 22:25:53 | 7.6437 | 0.00051 | 20.0388 | 163.0136 | 0.4077 | 1.00272 | – |
| 2025 Dec 11 18:56 | 2025 Dec 06 22:35:12 | 7.6551 | 0.00052 | 20.0414 | 163.6962 | 0.4077 | 1.00272 | – |
| 2025 Dec 10 18:56 | 2025 Dec 06 22:35:12 | 7.6551 | 0.00052 | 20.0414 | 163.6962 | 0.4077 | 1.00272 | – |
| 2025 Dec 09 18:56 | 2025 Dec 06 22:35:12 | 7.6551 | 0.00052 | 20.0414 | 163.6962 | 0.4077 | 1.00272 | – |
| 2025 Dec 08 18:56 | 2025 Dec 06 22:35:12 | 7.6551 | 0.00052 | 20.0414 | 163.6962 | 0.4077 | 1.00272 | – |
| 2025 Dec 07 18:56 | 2025 Dec 06 22:35:12 | 7.6551 | 0.00052 | 20.0414 | 163.6962 | 0.4077 | 1.00272 | – |
| 2025 Dec 06 18:56 | 2025 Dec 01 22:44:04 | 7.6663 | 0.00052 | 20.0441 | 164.2843 | 0.4077 | 1.00272 | – |
| 2025 Dec 05 18:57 | 2025 Dec 01 22:44:04 | 7.6663 | 0.00052 | 20.0441 | 164.2843 | 0.4077 | 1.00272 | – |
| 2025 Dec 04 18:57 | 2025 Dec 01 22:44:04 | 7.6663 | 0.00052 | 20.0441 | 164.2843 | 0.4077 | 1.00272 | – |
| 2025 Dec 03 18:56 | 2025 Dec 01 22:44:04 | 7.6663 | 0.00052 | 20.0441 | 164.2843 | 0.4077 | 1.00272 | – |
| 2025 Dec 02 18:56 | 2025 Dec 01 22:44:04 | 7.6663 | 0.00052 | 20.0441 | 164.2843 | 0.4077 | 1.00272 | – |