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 Aug 31 17:56 | 2025 Aug 27 21:24:28 | 74.0294 | 0.00144 | 19.2776 | 161.8789 | 198.2780 | 12.51919 | – |
| 2025 Aug 30 17:56 | 2025 Aug 27 21:24:28 | 74.0294 | 0.00144 | 19.2776 | 161.8789 | 198.2780 | 12.51919 | – |
| 2025 Aug 29 17:56 | 2025 Aug 27 21:24:28 | 74.0294 | 0.00144 | 19.2776 | 161.8789 | 198.2780 | 12.51919 | – |
| 2025 Aug 28 17:57 | 2025 Aug 27 21:24:28 | 74.0294 | 0.00144 | 19.2776 | 161.8789 | 198.2780 | 12.51919 | – |
| 2025 Aug 27 17:56 | 2025 Aug 23 06:10:52 | 74.0304 | 0.00145 | 19.6896 | 168.8686 | 198.2780 | 12.51919 | – |
| 2025 Aug 26 17:56 | 2025 Aug 23 06:10:52 | 74.0304 | 0.00145 | 19.6896 | 168.8686 | 198.2780 | 12.51919 | – |
| 2025 Aug 25 17:56 | 2025 Aug 23 06:10:52 | 74.0304 | 0.00145 | 19.6896 | 168.8686 | 198.2780 | 12.51919 | – |
| 2025 Aug 24 17:56 | 2025 Aug 23 06:10:52 | 74.0304 | 0.00145 | 19.6896 | 168.8686 | 198.2780 | 12.51919 | – |
| 2025 Aug 23 17:56 | 2025 Aug 23 06:10:52 | 74.0304 | 0.00145 | 19.6896 | 168.8686 | 198.2780 | 12.51919 | – |
| 2025 Aug 22 17:56 | 2025 Aug 17 15:56:32 | 74.0315 | 0.00146 | 20.1869 | 177.2012 | 198.2780 | 12.51919 | – |
| 2025 Aug 20 17:56 | 2025 Aug 17 15:56:32 | 74.0315 | 0.00146 | 20.1869 | 177.2012 | 198.2780 | 12.51919 | – |
| 2025 Aug 19 17:56 | 2025 Aug 17 15:56:32 | 74.0315 | 0.00146 | 20.1869 | 177.2012 | 198.2780 | 12.51919 | – |
| 2025 Aug 18 17:56 | 2025 Aug 17 15:56:32 | 74.0315 | 0.00146 | 20.1869 | 177.2012 | 198.2780 | 12.51919 | – |
| 2025 Aug 16 17:56 | 2025 Aug 11 23:47:08 | 74.0325 | 0.00147 | 20.6913 | 185.6857 | 198.2780 | 12.51919 | – |
| 2025 Aug 15 17:57 | 2025 Aug 11 23:47:08 | 74.0325 | 0.00147 | 20.6913 | 185.6857 | 198.2780 | 12.51919 | – |
| 2025 Aug 14 17:56 | 2025 Aug 11 23:47:08 | 74.0325 | 0.00147 | 20.6913 | 185.6857 | 198.2780 | 12.51919 | – |
| 2025 Aug 13 17:58 | 2025 Aug 11 23:47:08 | 74.0325 | 0.00147 | 20.6913 | 185.6857 | 198.2780 | 12.51919 | – |
| 2025 Aug 12 17:56 | 2025 Aug 11 23:47:08 | 74.0325 | 0.00147 | 20.6913 | 185.6857 | 198.2780 | 12.51919 | – |
| 2025 Aug 11 17:56 | 2025 Aug 06 17:13:02 | 74.0331 | 0.00148 | 21.1601 | 193.4385 | 198.2780 | 12.51919 | – |
| 2025 Aug 10 17:57 | 2025 Aug 06 17:13:02 | 74.0331 | 0.00148 | 21.1601 | 193.4385 | 198.2780 | 12.51919 | – |
| 2025 Aug 09 17:56 | 2025 Aug 06 17:13:02 | 74.0331 | 0.00148 | 21.1601 | 193.4385 | 198.2780 | 12.51919 | – |
| 2025 Aug 08 17:56 | 2025 Aug 06 17:13:02 | 74.0331 | 0.00148 | 21.1601 | 193.4385 | 198.2780 | 12.51919 | – |
| 2025 Aug 07 17:56 | 2025 Aug 06 17:13:02 | 74.0331 | 0.00148 | 21.1601 | 193.4385 | 198.2780 | 12.51919 | – |
| 2025 Aug 05 17:56 | 2025 Aug 01 08:43:52 | 74.0333 | 0.00148 | 21.6360 | 201.3341 | 198.2780 | 12.51919 | – |
| 2025 Aug 04 17:56 | 2025 Aug 01 08:43:52 | 74.0333 | 0.00148 | 21.6360 | 201.3341 | 198.2780 | 12.51919 | – |