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 Jun 30 17:56 | 2025 Jun 28 04:22:10 | 74.0357 | 0.00450 | 4.7501 | 228.4740 | 251.9912 | 12.58022 | – |
| 2025 Jun 29 17:56 | 2025 Jun 28 04:22:10 | 74.0357 | 0.00450 | 4.7501 | 228.4740 | 251.9912 | 12.58022 | – |
| 2025 Jun 28 17:56 | 2025 Jun 28 04:22:10 | 74.0357 | 0.00450 | 4.7501 | 228.4740 | 251.9912 | 12.58022 | – |
| 2025 Jun 27 17:56 | 2025 Jun 22 11:15:10 | 74.0359 | 0.00451 | 5.2637 | 237.0971 | 251.9912 | 12.58022 | – |
| 2025 Jun 26 17:56 | 2025 Jun 22 11:15:10 | 74.0359 | 0.00451 | 5.2637 | 237.0971 | 251.9912 | 12.58022 | – |
| 2025 Jun 25 17:56 | 2025 Jun 22 11:15:10 | 74.0359 | 0.00451 | 5.2637 | 237.0971 | 251.9912 | 12.58022 | – |
| 2025 Jun 24 17:56 | 2025 Jun 22 11:15:10 | 74.0359 | 0.00451 | 5.2637 | 237.0971 | 251.9912 | 12.58022 | – |
| 2025 Jun 23 17:56 | 2025 Jun 22 11:15:10 | 74.0359 | 0.00451 | 5.2637 | 237.0971 | 251.9912 | 12.58022 | – |
| 2025 Jun 22 17:56 | 2025 Jun 17 05:15:56 | 74.0356 | 0.00451 | 5.7356 | 245.0712 | 251.9912 | 12.58022 | – |
| 2025 Jun 21 17:56 | 2025 Jun 17 05:15:56 | 74.0356 | 0.00451 | 5.7356 | 245.0712 | 251.9912 | 12.58022 | – |
| 2025 Jun 20 17:57 | 2025 Jun 17 05:15:56 | 74.0356 | 0.00451 | 5.7356 | 245.0712 | 251.9912 | 12.58022 | – |
| 2025 Jun 19 17:56 | 2025 Jun 17 05:15:56 | 74.0356 | 0.00451 | 5.7356 | 245.0712 | 251.9912 | 12.58022 | – |
| 2025 Jun 18 17:56 | 2025 Jun 17 05:15:56 | 74.0356 | 0.00451 | 5.7356 | 245.0712 | 251.9912 | 12.58022 | – |
| 2025 Jun 17 17:56 | 2025 Jun 17 05:15:56 | 74.0356 | 0.00451 | 5.7356 | 245.0712 | 251.9912 | 12.58022 | – |
| 2025 Jun 16 17:56 | 2025 Jun 12 12:43:32 | 74.0353 | 0.00452 | 6.1571 | 252.1481 | 251.9912 | 12.58022 | – |
| 2025 Jun 15 17:56 | 2025 Jun 12 12:43:32 | 74.0353 | 0.00452 | 6.1571 | 252.1481 | 251.9912 | 12.58022 | – |
| 2025 Jun 14 17:56 | 2025 Jun 12 12:43:32 | 74.0353 | 0.00452 | 6.1571 | 252.1481 | 251.9912 | 12.58022 | – |
| 2025 Jun 13 17:56 | 2025 Jun 12 12:43:32 | 74.0353 | 0.00452 | 6.1571 | 252.1481 | 251.9912 | 12.58022 | – |
| 2025 Jun 12 17:56 | 2025 Jun 12 12:43:32 | 74.0353 | 0.00452 | 6.1571 | 252.1481 | 251.9912 | 12.58022 | – |
| 2025 Jun 11 17:56 | 2025 Jun 05 06:55:11 | 74.0343 | 0.00452 | 6.8081 | 263.0596 | 251.9912 | 12.58022 | – |
| 2025 Jun 10 17:56 | 2025 Jun 05 06:55:11 | 74.0343 | 0.00452 | 6.8081 | 263.0596 | 251.9912 | 12.58022 | – |
| 2025 Jun 09 17:56 | 2025 Jun 05 06:55:11 | 74.0343 | 0.00452 | 6.8081 | 263.0596 | 251.9912 | 12.58022 | – |
| 2025 Jun 08 17:56 | 2025 Jun 05 06:55:11 | 74.0343 | 0.00452 | 6.8081 | 263.0596 | 251.9912 | 12.58022 | – |
| 2025 Jun 07 17:56 | 2025 Jun 05 06:55:11 | 74.0343 | 0.00452 | 6.8081 | 263.0596 | 251.9912 | 12.58022 | – |
| 2025 Jun 06 17:56 | 2025 Jun 05 06:55:11 | 74.0343 | 0.00452 | 6.8081 | 263.0596 | 251.9912 | 12.58022 | – |
| 2025 Jun 05 17:56 | 2025 Jun 01 07:29:57 | 74.0337 | 0.00452 | 7.1656 | 269.0444 | 251.9912 | 12.58022 | – |
| 2025 Jun 04 17:57 | 2025 Jun 01 07:29:57 | 74.0337 | 0.00452 | 7.1656 | 269.0444 | 251.9912 | 12.58022 | – |
| 2025 Jun 03 17:57 | 2025 Jun 01 07:29:57 | 74.0337 | 0.00452 | 7.1656 | 269.0444 | 251.9912 | 12.58022 | – |