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 Feb 02 18:56 | 2026 Feb 02 12:44:04 | 7.5237 | 0.00051 | 20.0111 | 152.3994 | 306.9628 | 1.00271 | – |
| 2026 Feb 01 18:56 | 2026 Jan 27 19:36:05 | 7.5362 | 0.00050 | 20.0142 | 153.0778 | 306.9628 | 1.00271 | – |
| 2026 Jan 31 18:56 | 2026 Jan 27 19:36:05 | 7.5362 | 0.00050 | 20.0142 | 153.0778 | 306.9628 | 1.00271 | – |
| 2026 Jan 30 18:57 | 2026 Jan 27 19:36:05 | 7.5362 | 0.00050 | 20.0142 | 153.0778 | 306.9628 | 1.00271 | – |
| 2026 Jan 29 18:56 | 2026 Jan 27 19:36:05 | 7.5362 | 0.00050 | 20.0142 | 153.0778 | 306.9628 | 1.00271 | – |
| 2026 Jan 28 18:56 | 2026 Jan 27 19:36:05 | 7.5362 | 0.00050 | 20.0142 | 153.0778 | 306.9628 | 1.00271 | – |
| 2026 Jan 27 18:56 | 2026 Jan 21 19:22:10 | 7.5497 | 0.00049 | 20.0174 | 154.0196 | 306.9628 | 1.00271 | – |
| 2026 Jan 26 18:57 | 2026 Jan 21 19:22:10 | 7.5497 | 0.00049 | 20.0174 | 154.0196 | 306.9628 | 1.00271 | – |
| 2026 Jan 25 18:57 | 2026 Jan 21 19:22:10 | 7.5497 | 0.00049 | 20.0174 | 154.0196 | 306.9628 | 1.00271 | – |
| 2026 Jan 24 18:58 | 2026 Jan 21 19:22:10 | 7.5497 | 0.00049 | 20.0174 | 154.0196 | 306.9628 | 1.00271 | – |
| 2026 Jan 22 18:56 | 2026 Jan 21 19:22:10 | 7.5497 | 0.00049 | 20.0174 | 154.0196 | 306.9628 | 1.00271 | – |
| 2026 Jan 21 18:56 | 2026 Jan 16 07:22:21 | 7.5623 | 0.00048 | 20.0202 | 155.4557 | 306.9628 | 1.00271 | – |
| 2026 Jan 20 19:06 | 2026 Jan 16 07:22:21 | 7.5623 | 0.00048 | 20.0202 | 155.4557 | 306.9628 | 1.00271 | – |
| 2026 Jan 19 18:57 | 2026 Jan 16 07:22:21 | 7.5623 | 0.00048 | 20.0202 | 155.4557 | 306.9628 | 1.00271 | – |
| 2026 Jan 18 18:57 | 2026 Jan 16 07:22:21 | 7.5623 | 0.00048 | 20.0202 | 155.4557 | 306.9628 | 1.00271 | – |
| 2026 Jan 17 18:56 | 2026 Jan 16 07:22:21 | 7.5623 | 0.00048 | 20.0202 | 155.4557 | 306.9628 | 1.00271 | – |
| 2026 Jan 16 18:57 | 2026 Jan 16 07:22:21 | 7.5623 | 0.00048 | 20.0202 | 155.4557 | 306.9628 | 1.00271 | – |
| 2026 Jan 15 18:56 | 2026 Jan 11 07:22:21 | 7.5739 | 0.00049 | 20.0228 | 156.6672 | 306.9628 | 1.00271 | – |
| 2026 Jan 13 18:56 | 2026 Jan 11 07:22:21 | 7.5739 | 0.00049 | 20.0228 | 156.6672 | 306.9628 | 1.00271 | – |
| 2026 Jan 11 18:57 | 2026 Jan 11 07:22:21 | 7.5739 | 0.00049 | 20.0228 | 156.6672 | 306.9628 | 1.00271 | – |
| 2026 Jan 10 18:57 | 2026 Jan 05 21:37:34 | 7.5862 | 0.00050 | 20.0257 | 157.6122 | 306.9628 | 1.00271 | – |
| 2026 Jan 09 18:57 | 2026 Jan 05 21:37:34 | 7.5862 | 0.00050 | 20.0257 | 157.6122 | 306.9628 | 1.00271 | – |
| 2026 Jan 08 18:56 | 2026 Jan 05 21:37:34 | 7.5862 | 0.00050 | 20.0257 | 157.6122 | 306.9628 | 1.00271 | – |
| 2026 Jan 07 18:57 | 2026 Jan 05 21:37:34 | 7.5862 | 0.00050 | 20.0257 | 157.6122 | 306.9628 | 1.00271 | – |
| 2026 Jan 06 18:56 | 2026 Jan 05 21:37:34 | 7.5862 | 0.00050 | 20.0257 | 157.6122 | 306.9628 | 1.00271 | – |