Orbital elements of COSMOS 2128
| Launched | 11 February 1991 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 21103 |
| 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 05 18:58 | 2026 Feb 02 10:06:50 | 74.0285 | 0.00157 | 5.1831 | 279.5108 | 80.4166 | 12.51923 | – |
| 2026 Feb 04 18:57 | 2026 Feb 02 10:06:50 | 74.0285 | 0.00157 | 5.1831 | 279.5108 | 80.4166 | 12.51923 | – |
| 2026 Feb 03 18:56 | 2026 Feb 02 10:06:50 | 74.0285 | 0.00157 | 5.1831 | 279.5108 | 80.4166 | 12.51923 | – |
| 2026 Feb 02 18:56 | 2026 Feb 02 10:06:50 | 74.0285 | 0.00157 | 5.1831 | 279.5108 | 80.4166 | 12.51923 | – |
| 2026 Feb 01 18:56 | 2026 Jan 27 19:52:32 | 74.0290 | 0.00157 | 5.6804 | 287.5835 | 80.4166 | 12.51923 | – |
| 2026 Jan 31 18:56 | 2026 Jan 27 19:52:32 | 74.0290 | 0.00157 | 5.6804 | 287.5835 | 80.4166 | 12.51923 | – |
| 2026 Jan 30 18:57 | 2026 Jan 27 19:52:32 | 74.0290 | 0.00157 | 5.6804 | 287.5835 | 80.4166 | 12.51923 | – |
| 2026 Jan 29 18:56 | 2026 Jan 27 19:52:32 | 74.0290 | 0.00157 | 5.6804 | 287.5835 | 80.4166 | 12.51923 | – |
| 2026 Jan 28 18:56 | 2026 Jan 27 19:52:32 | 74.0290 | 0.00157 | 5.6804 | 287.5835 | 80.4166 | 12.51923 | – |
| 2026 Jan 27 18:56 | 2026 Jan 22 11:23:25 | 74.0297 | 0.00156 | 6.1565 | 295.3161 | 80.4166 | 12.51923 | – |
| 2026 Jan 26 18:57 | 2026 Jan 22 11:23:25 | 74.0297 | 0.00156 | 6.1565 | 295.3161 | 80.4166 | 12.51923 | – |
| 2026 Jan 25 18:57 | 2026 Jan 22 11:23:25 | 74.0297 | 0.00156 | 6.1565 | 295.3161 | 80.4166 | 12.51923 | – |
| 2026 Jan 24 18:58 | 2026 Jan 22 11:23:25 | 74.0297 | 0.00156 | 6.1565 | 295.3161 | 80.4166 | 12.51923 | – |