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 |
| 2026 Jan 19 18:57 | 2026 Jan 16 07:22:21 | 7.5623 | 0.00048 | 20.0202 | 155.4557 | 206.3857 | 1.00272 | – |
| 2026 Jan 18 18:57 | 2026 Jan 16 07:22:21 | 7.5623 | 0.00048 | 20.0202 | 155.4557 | 206.3857 | 1.00272 | – |
| 2026 Jan 17 18:56 | 2026 Jan 16 07:22:21 | 7.5623 | 0.00048 | 20.0202 | 155.4557 | 206.3857 | 1.00272 | – |
| 2026 Jan 16 18:57 | 2026 Jan 16 07:22:21 | 7.5623 | 0.00048 | 20.0202 | 155.4557 | 206.3857 | 1.00272 | – |
| 2026 Jan 15 18:56 | 2026 Jan 11 07:22:21 | 7.5739 | 0.00049 | 20.0228 | 156.6672 | 206.3857 | 1.00272 | – |
| 2026 Jan 13 18:56 | 2026 Jan 11 07:22:21 | 7.5739 | 0.00049 | 20.0228 | 156.6672 | 206.3857 | 1.00272 | – |
| 2026 Jan 11 18:57 | 2026 Jan 11 07:22:21 | 7.5739 | 0.00049 | 20.0228 | 156.6672 | 206.3857 | 1.00272 | – |
| 2026 Jan 10 18:57 | 2026 Jan 05 21:37:34 | 7.5862 | 0.00050 | 20.0257 | 157.6122 | 206.3857 | 1.00272 | – |
| 2026 Jan 09 18:57 | 2026 Jan 05 21:37:34 | 7.5862 | 0.00050 | 20.0257 | 157.6122 | 206.3857 | 1.00272 | – |
| 2026 Jan 08 18:56 | 2026 Jan 05 21:37:34 | 7.5862 | 0.00050 | 20.0257 | 157.6122 | 206.3857 | 1.00272 | – |
| 2026 Jan 07 18:57 | 2026 Jan 05 21:37:34 | 7.5862 | 0.00050 | 20.0257 | 157.6122 | 206.3857 | 1.00272 | – |
| 2026 Jan 06 18:56 | 2026 Jan 05 21:37:34 | 7.5862 | 0.00050 | 20.0257 | 157.6122 | 206.3857 | 1.00272 | – |
| 2026 Jan 05 18:57 | 2025 Dec 30 21:49:19 | 7.5996 | 0.00050 | 20.0289 | 158.4867 | 206.3857 | 1.00272 | – |
| 2026 Jan 04 18:56 | 2025 Dec 30 21:49:19 | 7.5996 | 0.00050 | 20.0289 | 158.4867 | 206.3857 | 1.00272 | – |
| 2026 Jan 03 18:57 | 2025 Dec 30 21:49:19 | 7.5996 | 0.00050 | 20.0289 | 158.4867 | 206.3857 | 1.00272 | – |
| 2026 Jan 01 18:56 | 2025 Dec 30 21:49:19 | 7.5996 | 0.00050 | 20.0289 | 158.4867 | 206.3857 | 1.00272 | – |
| 2025 Dec 31 18:57 | 2025 Dec 30 21:49:19 | 7.5996 | 0.00050 | 20.0289 | 158.4867 | 206.3857 | 1.00272 | – |
| 2025 Dec 30 18:56 | 2025 Dec 25 19:20:27 | 7.6112 | 0.00049 | 20.0317 | 159.5992 | 206.3857 | 1.00272 | – |
| 2025 Dec 29 18:56 | 2025 Dec 25 19:20:27 | 7.6112 | 0.00049 | 20.0317 | 159.5992 | 206.3857 | 1.00272 | – |
| 2025 Dec 28 18:57 | 2025 Dec 25 19:20:27 | 7.6112 | 0.00049 | 20.0317 | 159.5992 | 206.3857 | 1.00272 | – |
| 2025 Dec 27 18:57 | 2025 Dec 25 19:20:27 | 7.6112 | 0.00049 | 20.0317 | 159.5992 | 206.3857 | 1.00272 | – |
| 2025 Dec 26 18:56 | 2025 Dec 25 19:20:27 | 7.6112 | 0.00049 | 20.0317 | 159.5992 | 206.3857 | 1.00272 | – |
| 2025 Dec 25 18:57 | 2025 Dec 19 22:11:00 | 7.6249 | 0.00049 | 20.0347 | 161.2671 | 206.3857 | 1.00272 | – |
| 2025 Dec 24 18:56 | 2025 Dec 19 22:11:00 | 7.6249 | 0.00049 | 20.0347 | 161.2671 | 206.3857 | 1.00272 | – |
| 2025 Dec 23 18:56 | 2025 Dec 19 22:11:00 | 7.6249 | 0.00049 | 20.0347 | 161.2671 | 206.3857 | 1.00272 | – |