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 May 18 17:57 | 2026 May 16 10:01:09 | 74.0294 | 0.00146 | 20.0255 | 125.7260 | 234.5150 | 12.51925 | – |
| 2026 May 17 17:57 | 2026 May 16 10:01:09 | 74.0294 | 0.00146 | 20.0255 | 125.7260 | 234.5150 | 12.51925 | – |
| 2026 May 16 17:56 | 2026 May 16 10:01:09 | 74.0294 | 0.00146 | 20.0255 | 125.7260 | 234.5150 | 12.51925 | – |
| 2026 May 15 17:57 | 2026 May 10 12:06:37 | 74.0295 | 0.00146 | 20.5513 | 134.8544 | 234.5150 | 12.51925 | – |
| 2026 May 14 17:58 | 2026 May 10 12:06:37 | 74.0295 | 0.00146 | 20.5513 | 134.8544 | 234.5150 | 12.51925 | – |
| 2026 May 13 17:58 | 2026 May 10 12:06:37 | 74.0295 | 0.00146 | 20.5513 | 134.8544 | 234.5150 | 12.51925 | – |
| 2026 May 12 17:58 | 2026 May 10 12:06:37 | 74.0295 | 0.00146 | 20.5513 | 134.8544 | 234.5150 | 12.51925 | – |
| 2026 May 11 17:56 | 2026 May 10 12:06:37 | 74.0295 | 0.00146 | 20.5513 | 134.8544 | 234.5150 | 12.51925 | – |
| 2026 May 10 17:57 | 2026 May 10 12:06:37 | 74.0295 | 0.00146 | 20.5513 | 134.8544 | 234.5150 | 12.51925 | – |
| 2026 May 09 17:57 | 2026 May 04 23:47:22 | 74.0297 | 0.00147 | 21.0415 | 143.3402 | 234.5150 | 12.51925 | – |
| 2026 May 08 17:57 | 2026 May 04 23:47:22 | 74.0297 | 0.00147 | 21.0415 | 143.3402 | 234.5150 | 12.51925 | – |
| 2026 May 07 17:58 | 2026 May 04 23:47:22 | 74.0297 | 0.00147 | 21.0415 | 143.3402 | 234.5150 | 12.51925 | – |
| 2026 May 06 17:57 | 2026 May 04 23:47:22 | 74.0297 | 0.00147 | 21.0415 | 143.3402 | 234.5150 | 12.51925 | – |
| 2026 May 05 17:57 | 2026 May 04 23:47:22 | 74.0297 | 0.00147 | 21.0415 | 143.3402 | 234.5150 | 12.51925 | – |
| 2026 May 04 17:57 | 2026 Apr 30 14:18:59 | 74.0302 | 0.00147 | 21.4323 | 150.1295 | 234.5150 | 12.51925 | – |
| 2026 May 03 17:57 | 2026 Apr 30 14:18:59 | 74.0302 | 0.00147 | 21.4323 | 150.1295 | 234.5150 | 12.51925 | – |
| 2026 May 02 17:57 | 2026 Apr 30 14:18:59 | 74.0302 | 0.00147 | 21.4323 | 150.1295 | 234.5150 | 12.51925 | – |
| 2026 May 01 17:56 | 2026 Apr 30 14:18:59 | 74.0302 | 0.00147 | 21.4323 | 150.1295 | 234.5150 | 12.51925 | – |
| 2026 Apr 30 17:56 | 2026 Apr 30 14:18:59 | 74.0302 | 0.00147 | 21.4323 | 150.1295 | 234.5150 | 12.51925 | – |
| 2026 Apr 29 17:57 | 2026 Apr 24 01:03:57 | 74.0310 | 0.00148 | 22.0149 | 160.2150 | 234.5150 | 12.51925 | – |
| 2026 Apr 28 17:56 | 2026 Apr 24 01:03:57 | 74.0310 | 0.00148 | 22.0149 | 160.2150 | 234.5150 | 12.51925 | – |
| 2026 Apr 27 17:58 | 2026 Apr 24 01:03:57 | 74.0310 | 0.00148 | 22.0149 | 160.2150 | 234.5150 | 12.51925 | – |
| 2026 Apr 26 17:58 | 2026 Apr 24 01:03:57 | 74.0310 | 0.00148 | 22.0149 | 160.2150 | 234.5150 | 12.51925 | – |
| 2026 Apr 25 17:58 | 2026 Apr 24 01:03:57 | 74.0310 | 0.00148 | 22.0149 | 160.2150 | 234.5150 | 12.51925 | – |
| 2026 Apr 24 17:59 | 2026 Apr 24 01:03:57 | 74.0310 | 0.00148 | 22.0149 | 160.2150 | 234.5150 | 12.51925 | – |
| 2026 Apr 23 17:57 | 2026 Apr 19 07:55:19 | 74.0319 | 0.00149 | 22.4341 | 167.4351 | 234.5150 | 12.51925 | – |
| 2026 Apr 22 17:57 | 2026 Apr 19 07:55:19 | 74.0319 | 0.00149 | 22.4341 | 167.4351 | 234.5150 | 12.51925 | – |
| 2026 Apr 21 17:57 | 2026 Apr 19 07:55:19 | 74.0319 | 0.00149 | 22.4341 | 167.4351 | 234.5150 | 12.51925 | – |