Orbital elements of COSMOS 873
| Launched | 6 December 1976 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 9590 |
| 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 Sep 15 17:56 | 2025 Sep 15 03:25:46 | 74.0296 | 0.00209 | 8.8623 | 306.8993 | 211.1867 | 12.46412 | – |
| 2025 Sep 12 17:57 | 2025 Sep 03 04:29:07 | 74.0314 | 0.00208 | 9.9143 | 324.2474 | 211.1867 | 12.46412 | – |
| 2025 Sep 11 17:57 | 2025 Sep 03 04:29:07 | 74.0314 | 0.00208 | 9.9143 | 324.2474 | 211.1867 | 12.46412 | – |
| 2025 Sep 10 17:56 | 2025 Sep 03 04:29:07 | 74.0314 | 0.00208 | 9.9143 | 324.2474 | 211.1867 | 12.46412 | – |
| 2025 Sep 08 17:57 | 2025 Sep 03 04:29:07 | 74.0314 | 0.00208 | 9.9143 | 324.2474 | 211.1867 | 12.46412 | – |
| 2025 Sep 07 17:56 | 2025 Sep 03 04:29:07 | 74.0314 | 0.00208 | 9.9143 | 324.2474 | 211.1867 | 12.46412 | – |
| 2025 Sep 06 20:41 | 2025 Sep 03 04:29:07 | 74.0314 | 0.00208 | 9.9143 | 324.2474 | 211.1867 | 12.46412 | – |
| 2025 Sep 03 17:57 | 2025 Sep 03 04:29:07 | 74.0314 | 0.00208 | 9.9143 | 324.2474 | 211.1867 | 12.46412 | – |
| 2025 Sep 02 17:56 | 2025 Aug 27 21:41:44 | 74.0316 | 0.00208 | 10.4671 | 333.4124 | 211.1867 | 12.46412 | – |
| 2025 Sep 01 17:56 | 2025 Aug 27 21:41:44 | 74.0316 | 0.00208 | 10.4671 | 333.4124 | 211.1867 | 12.46412 | – |
| 2025 Aug 31 17:56 | 2025 Aug 27 21:41:44 | 74.0316 | 0.00208 | 10.4671 | 333.4124 | 211.1867 | 12.46412 | – |
| 2025 Aug 30 17:56 | 2025 Aug 27 21:41:44 | 74.0316 | 0.00208 | 10.4671 | 333.4124 | 211.1867 | 12.46412 | – |
| 2025 Aug 29 17:56 | 2025 Aug 27 21:41:44 | 74.0316 | 0.00208 | 10.4671 | 333.4124 | 211.1867 | 12.46412 | – |
| 2025 Aug 28 17:57 | 2025 Aug 27 21:41:44 | 74.0316 | 0.00208 | 10.4671 | 333.4124 | 211.1867 | 12.46412 | – |
| 2025 Aug 27 17:56 | 2025 Aug 23 06:15:03 | 74.0315 | 0.00207 | 10.8756 | 340.1899 | 211.1867 | 12.46412 | – |
| 2025 Aug 26 17:56 | 2025 Aug 23 06:15:03 | 74.0315 | 0.00207 | 10.8756 | 340.1899 | 211.1867 | 12.46412 | – |
| 2025 Aug 25 17:56 | 2025 Aug 23 06:15:03 | 74.0315 | 0.00207 | 10.8756 | 340.1899 | 211.1867 | 12.46412 | – |
| 2025 Aug 24 17:56 | 2025 Aug 23 06:15:03 | 74.0315 | 0.00207 | 10.8756 | 340.1899 | 211.1867 | 12.46412 | – |
| 2025 Aug 23 17:56 | 2025 Aug 23 06:15:03 | 74.0315 | 0.00207 | 10.8756 | 340.1899 | 211.1867 | 12.46412 | – |
| 2025 Aug 22 17:56 | 2025 Aug 18 07:01:43 | 74.0312 | 0.00206 | 11.3126 | 347.5392 | 211.1867 | 12.46412 | – |
| 2025 Aug 20 17:56 | 2025 Aug 18 07:01:43 | 74.0312 | 0.00206 | 11.3126 | 347.5392 | 211.1867 | 12.46412 | – |
| 2025 Aug 19 17:56 | 2025 Aug 18 07:01:43 | 74.0312 | 0.00206 | 11.3126 | 347.5392 | 211.1867 | 12.46412 | – |