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 |
| 2025 Dec 09 18:56 | 2025 Dec 07 05:02:48 | 74.0274 | 0.00148 | 10.2695 | 4.0838 | 356.0332 | 12.51922 | – |
| 2025 Dec 08 18:56 | 2025 Dec 07 05:02:48 | 74.0274 | 0.00148 | 10.2695 | 4.0838 | 356.0332 | 12.51922 | – |
| 2025 Dec 07 18:56 | 2025 Dec 07 05:02:48 | 74.0274 | 0.00148 | 10.2695 | 4.0838 | 356.0332 | 12.51922 | – |
| 2025 Dec 06 18:56 | 2025 Dec 02 11:54:10 | 74.0272 | 0.00147 | 10.6887 | 11.3064 | 356.0332 | 12.51922 | – |
| 2025 Dec 05 18:57 | 2025 Dec 02 11:54:10 | 74.0272 | 0.00147 | 10.6887 | 11.3064 | 356.0332 | 12.51922 | – |
| 2025 Dec 04 18:57 | 2025 Dec 02 11:54:10 | 74.0272 | 0.00147 | 10.6887 | 11.3064 | 356.0332 | 12.51922 | – |
| 2025 Dec 03 18:56 | 2025 Dec 02 11:54:10 | 74.0272 | 0.00147 | 10.6887 | 11.3064 | 356.0332 | 12.51922 | – |
| 2025 Dec 02 18:56 | 2025 Dec 02 11:54:10 | 74.0272 | 0.00147 | 10.6887 | 11.3064 | 356.0332 | 12.51922 | – |
| 2025 Nov 30 18:57 | 2025 Nov 24 23:38:23 | 74.0275 | 0.00146 | 11.3564 | 22.8175 | 356.0332 | 12.51922 | – |
| 2025 Nov 29 18:56 | 2025 Nov 24 23:38:23 | 74.0275 | 0.00146 | 11.3564 | 22.8175 | 356.0332 | 12.51922 | – |
| 2025 Nov 28 18:57 | 2025 Nov 24 23:38:23 | 74.0275 | 0.00146 | 11.3564 | 22.8175 | 356.0332 | 12.51922 | – |
| 2025 Nov 27 18:57 | 2025 Nov 24 23:38:23 | 74.0275 | 0.00146 | 11.3564 | 22.8175 | 356.0332 | 12.51922 | – |
| 2025 Nov 26 18:57 | 2025 Nov 24 23:38:23 | 74.0275 | 0.00146 | 11.3564 | 22.8175 | 356.0332 | 12.51922 | – |
| 2025 Nov 25 18:57 | 2025 Nov 24 23:38:23 | 74.0275 | 0.00146 | 11.3564 | 22.8175 | 356.0332 | 12.51922 | – |
| 2025 Nov 24 18:56 | 2025 Nov 20 00:44:34 | 74.0282 | 0.00145 | 11.7969 | 30.3655 | 356.0332 | 12.51922 | – |
| 2025 Nov 23 18:57 | 2025 Nov 20 00:44:34 | 74.0282 | 0.00145 | 11.7969 | 30.3655 | 356.0332 | 12.51922 | – |
| 2025 Nov 21 18:57 | 2025 Nov 20 00:44:34 | 74.0282 | 0.00145 | 11.7969 | 30.3655 | 356.0332 | 12.51922 | – |
| 2025 Nov 20 18:56 | 2025 Nov 20 00:44:34 | 74.0282 | 0.00145 | 11.7969 | 30.3655 | 356.0332 | 12.51922 | – |
| 2025 Nov 18 18:57 | 2025 Nov 08 16:25:48 | 74.0300 | 0.00143 | 12.8056 | 47.8197 | 356.0332 | 12.51922 | – |
| 2025 Nov 16 18:58 | 2025 Nov 08 16:25:48 | 74.0300 | 0.00143 | 12.8056 | 47.8197 | 356.0332 | 12.51922 | – |
| 2025 Nov 15 18:57 | 2025 Nov 08 16:25:48 | 74.0300 | 0.00143 | 12.8056 | 47.8197 | 356.0332 | 12.51922 | – |
| 2025 Nov 13 18:56 | 2025 Nov 08 16:25:48 | 74.0300 | 0.00143 | 12.8056 | 47.8197 | 356.0332 | 12.51922 | – |
| 2025 Nov 12 18:57 | 2025 Nov 08 16:25:48 | 74.0300 | 0.00143 | 12.8056 | 47.8197 | 356.0332 | 12.51922 | – |