Orbital elements of COSMOS 678
| Launched | 18 September 1974 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 7436 |
| 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 Mar 12 18:57 | 2026 Mar 10 12:54:30 | 74.0336 | 0.00414 | 8.1442 | 156.5097 | 317.0519 | 12.41799 | – |
| 2026 Mar 11 18:56 | 2026 Mar 10 12:54:30 | 74.0336 | 0.00414 | 8.1442 | 156.5097 | 317.0519 | 12.41799 | – |
| 2026 Mar 10 18:56 | 2026 Mar 10 12:54:30 | 74.0336 | 0.00414 | 8.1442 | 156.5097 | 317.0519 | 12.41799 | – |
| 2026 Mar 09 18:56 | 2026 Mar 04 13:36:05 | 74.0346 | 0.00415 | 8.6650 | 165.3574 | 317.0519 | 12.41799 | – |
| 2026 Mar 08 18:57 | 2026 Mar 04 13:36:05 | 74.0346 | 0.00415 | 8.6650 | 165.3574 | 317.0519 | 12.41799 | – |
| 2026 Mar 07 18:57 | 2026 Mar 04 13:36:05 | 74.0346 | 0.00415 | 8.6650 | 165.3574 | 317.0519 | 12.41799 | – |
| 2026 Mar 06 18:56 | 2026 Mar 04 13:36:05 | 74.0346 | 0.00415 | 8.6650 | 165.3574 | 317.0519 | 12.41799 | – |
| 2026 Mar 05 18:56 | 2026 Mar 04 13:36:05 | 74.0346 | 0.00415 | 8.6650 | 165.3574 | 317.0519 | 12.41799 | – |
| 2026 Mar 04 18:57 | 2026 Mar 04 13:36:05 | 74.0346 | 0.00415 | 8.6650 | 165.3574 | 317.0519 | 12.41799 | – |
| 2026 Mar 03 18:56 | 2026 Feb 26 12:17:58 | 74.0357 | 0.00416 | 9.1930 | 174.2999 | 317.0519 | 12.41799 | – |
| 2026 Mar 02 18:57 | 2026 Feb 26 12:17:58 | 74.0357 | 0.00416 | 9.1930 | 174.2999 | 317.0519 | 12.41799 | – |
| 2026 Mar 01 18:57 | 2026 Feb 26 12:17:58 | 74.0357 | 0.00416 | 9.1930 | 174.2999 | 317.0519 | 12.41799 | – |
| 2026 Feb 28 18:56 | 2026 Feb 26 12:17:58 | 74.0357 | 0.00416 | 9.1930 | 174.2999 | 317.0519 | 12.41799 | – |
| 2026 Feb 27 19:05 | 2026 Feb 26 12:17:58 | 74.0357 | 0.00416 | 9.1930 | 174.2999 | 317.0519 | 12.41799 | – |
| 2026 Feb 26 20:45 | 2026 Feb 26 12:17:58 | 74.0357 | 0.00416 | 9.1930 | 174.2999 | 317.0519 | 12.41799 | – |