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 Jun 13 17:56 | 2026 Jun 11 23:32:49 | 74.0365 | 0.00416 | 23.9942 | 16.6856 | 94.6749 | 12.41800 | – |
| 2026 Jun 12 17:56 | 2026 Jun 11 23:32:49 | 74.0365 | 0.00416 | 23.9942 | 16.6856 | 94.6749 | 12.41800 | – |
| 2026 Jun 11 17:57 | 2026 Jun 07 07:44:55 | 74.0366 | 0.00415 | 0.4005 | 23.6073 | 94.6749 | 12.41800 | – |
| 2026 Jun 10 17:56 | 2026 Jun 07 07:44:55 | 74.0366 | 0.00415 | 0.4005 | 23.6073 | 94.6749 | 12.41800 | – |
| 2026 Jun 09 17:57 | 2026 Jun 07 07:44:55 | 74.0366 | 0.00415 | 0.4005 | 23.6073 | 94.6749 | 12.41800 | – |
| 2026 Jun 08 17:56 | 2026 Jun 07 07:44:55 | 74.0366 | 0.00415 | 0.4005 | 23.6073 | 94.6749 | 12.41800 | – |
| 2026 Jun 07 17:56 | 2026 Jun 07 07:44:55 | 74.0366 | 0.00415 | 0.4005 | 23.6073 | 94.6749 | 12.41800 | – |
| 2026 Jun 06 17:56 | 2026 May 31 01:38:46 | 74.0373 | 0.00414 | 1.0332 | 34.3644 | 94.6749 | 12.41800 | – |
| 2026 Jun 05 17:56 | 2026 May 31 01:38:46 | 74.0373 | 0.00414 | 1.0332 | 34.3644 | 94.6749 | 12.41800 | – |
| 2026 Jun 04 17:57 | 2026 May 31 01:38:46 | 74.0373 | 0.00414 | 1.0332 | 34.3644 | 94.6749 | 12.41800 | – |
| 2026 Jun 02 17:56 | 2026 May 31 01:38:46 | 74.0373 | 0.00414 | 1.0332 | 34.3644 | 94.6749 | 12.41800 | – |
| 2026 Jun 01 17:57 | 2026 May 31 01:38:46 | 74.0373 | 0.00414 | 1.0332 | 34.3644 | 94.6749 | 12.41800 | – |
| 2026 May 31 17:58 | 2026 May 31 01:38:46 | 74.0373 | 0.00414 | 1.0332 | 34.3644 | 94.6749 | 12.41800 | – |
| 2026 May 30 17:57 | 2026 May 26 03:31:22 | 74.0377 | 0.00414 | 1.4625 | 41.6830 | 94.6749 | 12.41800 | – |
| 2026 May 29 17:57 | 2026 May 26 03:31:22 | 74.0377 | 0.00414 | 1.4625 | 41.6830 | 94.6749 | 12.41800 | – |
| 2026 May 28 17:56 | 2026 May 26 03:31:22 | 74.0377 | 0.00414 | 1.4625 | 41.6830 | 94.6749 | 12.41800 | – |
| 2026 May 27 17:57 | 2026 May 26 03:31:22 | 74.0377 | 0.00414 | 1.4625 | 41.6830 | 94.6749 | 12.41800 | – |
| 2026 May 26 17:57 | 2026 May 26 03:31:22 | 74.0377 | 0.00414 | 1.4625 | 41.6830 | 94.6749 | 12.41800 | – |
| 2026 May 25 17:57 | 2026 May 21 09:45:10 | 74.0380 | 0.00413 | 1.8759 | 48.7334 | 94.6749 | 12.41800 | – |
| 2026 May 24 17:57 | 2026 May 21 09:45:10 | 74.0380 | 0.00413 | 1.8759 | 48.7334 | 94.6749 | 12.41800 | – |
| 2026 May 23 17:58 | 2026 May 21 09:45:10 | 74.0380 | 0.00413 | 1.8759 | 48.7334 | 94.6749 | 12.41800 | – |
| 2026 May 22 17:57 | 2026 May 21 09:45:10 | 74.0380 | 0.00413 | 1.8759 | 48.7334 | 94.6749 | 12.41800 | – |
| 2026 May 21 17:57 | 2026 May 21 09:45:10 | 74.0380 | 0.00413 | 1.8759 | 48.7334 | 94.6749 | 12.41800 | – |
| 2026 May 20 17:57 | 2026 May 16 11:48:52 | 74.0380 | 0.00412 | 2.3044 | 56.0825 | 94.6749 | 12.41800 | – |
| 2026 May 19 17:58 | 2026 May 16 11:48:52 | 74.0380 | 0.00412 | 2.3044 | 56.0825 | 94.6749 | 12.41800 | – |
| 2026 May 18 17:57 | 2026 May 16 11:48:52 | 74.0380 | 0.00412 | 2.3044 | 56.0825 | 94.6749 | 12.41800 | – |
| 2026 May 17 17:57 | 2026 May 16 11:48:52 | 74.0380 | 0.00412 | 2.3044 | 56.0825 | 94.6749 | 12.41800 | – |