Orbital elements of COSMOS 677
| Launched | 18 September 1974 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 7435 |
| 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 Oct 29 18:57 | 2025 Oct 29 08:25:23 | 74.0334 | 0.00440 | 17.6770 | 39.2815 | 70.8884 | 12.58025 | – |
| 2025 Oct 28 18:57 | 2025 Oct 23 22:23:44 | 74.0327 | 0.00439 | 18.1641 | 47.6330 | 70.8884 | 12.58025 | – |
| 2025 Oct 27 18:57 | 2025 Oct 23 22:23:44 | 74.0327 | 0.00439 | 18.1641 | 47.6330 | 70.8884 | 12.58025 | – |
| 2025 Oct 26 18:57 | 2025 Oct 23 22:23:44 | 74.0327 | 0.00439 | 18.1641 | 47.6330 | 70.8884 | 12.58025 | – |
| 2025 Oct 25 17:57 | 2025 Oct 23 22:23:44 | 74.0327 | 0.00439 | 18.1641 | 47.6330 | 70.8884 | 12.58025 | – |
| 2025 Oct 24 17:57 | 2025 Oct 23 22:23:44 | 74.0327 | 0.00439 | 18.1641 | 47.6330 | 70.8884 | 12.58025 | – |
| 2025 Oct 22 17:56 | 2025 Oct 18 06:40:41 | 74.0325 | 0.00438 | 18.6726 | 56.3778 | 70.8884 | 12.58025 | – |
| 2025 Oct 21 17:56 | 2025 Oct 18 06:40:41 | 74.0325 | 0.00438 | 18.6726 | 56.3778 | 70.8884 | 12.58025 | – |
| 2025 Oct 20 17:56 | 2025 Oct 18 06:40:41 | 74.0325 | 0.00438 | 18.6726 | 56.3778 | 70.8884 | 12.58025 | – |
| 2025 Oct 19 17:56 | 2025 Oct 18 06:40:41 | 74.0325 | 0.00438 | 18.6726 | 56.3778 | 70.8884 | 12.58025 | – |
| 2025 Oct 18 17:56 | 2025 Oct 18 06:40:41 | 74.0325 | 0.00438 | 18.6726 | 56.3778 | 70.8884 | 12.58025 | – |
| 2025 Oct 17 17:56 | 2025 Oct 07 11:50:46 | 74.0329 | 0.00438 | 19.6423 | 73.0996 | 70.8884 | 12.58025 | – |
| 2025 Oct 16 17:56 | 2025 Oct 07 11:50:46 | 74.0329 | 0.00438 | 19.6423 | 73.0996 | 70.8884 | 12.58025 | – |
| 2025 Oct 15 17:56 | 2025 Oct 07 11:50:46 | 74.0329 | 0.00438 | 19.6423 | 73.0996 | 70.8884 | 12.58025 | – |
| 2025 Oct 14 17:56 | 2025 Oct 07 11:50:46 | 74.0329 | 0.00438 | 19.6423 | 73.0996 | 70.8884 | 12.58025 | – |
| 2025 Oct 12 17:56 | 2025 Oct 07 11:50:46 | 74.0329 | 0.00438 | 19.6423 | 73.0996 | 70.8884 | 12.58025 | – |
| 2025 Oct 11 17:57 | 2025 Oct 07 11:50:46 | 74.0329 | 0.00438 | 19.6423 | 73.0996 | 70.8884 | 12.58025 | – |
| 2025 Oct 09 17:56 | 2025 Oct 07 11:50:46 | 74.0329 | 0.00438 | 19.6423 | 73.0996 | 70.8884 | 12.58025 | – |
| 2025 Oct 08 17:56 | 2025 Oct 07 11:50:46 | 74.0329 | 0.00438 | 19.6423 | 73.0996 | 70.8884 | 12.58025 | – |
| 2025 Oct 07 17:56 | 2025 Oct 07 11:50:46 | 74.0329 | 0.00438 | 19.6423 | 73.0996 | 70.8884 | 12.58025 | – |
| 2025 Oct 05 17:56 | 2025 Sep 26 02:17:00 | 74.0350 | 0.00437 | 20.6672 | 90.7896 | 70.8884 | 12.58025 | – |
| 2025 Oct 04 17:57 | 2025 Sep 26 02:17:00 | 74.0350 | 0.00437 | 20.6672 | 90.7896 | 70.8884 | 12.58025 | – |
| 2025 Oct 03 17:57 | 2025 Sep 26 02:17:00 | 74.0350 | 0.00437 | 20.6672 | 90.7896 | 70.8884 | 12.58025 | – |