Orbital elements of HYDROGNSS-1
| Launched | 27 November 2025 |
| Flight ended | – |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | European Space Agency |
| NORAD ID | 66762 |
| 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 28 18:56 | 2026 Feb 28 05:07:13 | 97.4299 | 0.00034 | 8.9726 | 56.9534 | 303.2024 | 15.17990 | – |
| 2026 Feb 27 19:05 | 2026 Feb 27 03:48:26 | 97.4299 | 0.00034 | 8.9036 | 58.9981 | 303.2024 | 15.17990 | – |
| 2026 Feb 26 20:45 | 2026 Feb 26 13:34:08 | 97.4299 | 0.00035 | 8.8647 | 60.4879 | 303.2024 | 15.17990 | – |
| 2026 Feb 05 18:58 | 2026 Feb 05 03:21:55 | 97.4336 | 0.00039 | 7.4622 | 105.4412 | 303.2024 | 15.17990 | – |
| 2026 Feb 04 18:57 | 2026 Feb 04 03:37:51 | 97.4340 | 0.00039 | 7.3974 | 107.6110 | 303.2024 | 15.17990 | – |
| 2026 Feb 03 18:56 | 2026 Feb 03 03:53:47 | 97.4343 | 0.00038 | 7.3327 | 109.7700 | 303.2024 | 15.17990 | – |
| 2026 Feb 02 18:56 | 2026 Feb 02 04:09:42 | 97.4346 | 0.00038 | 7.2680 | 111.8483 | 303.2024 | 15.17990 | – |
| 2026 Feb 01 18:56 | 2026 Feb 01 10:45:22 | 97.4350 | 0.00038 | 7.2205 | 113.4269 | 303.2024 | 15.17990 | – |