Orbital elements of COSMOS 1684
| Launched | 23 September 1985 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 16064 |
| 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 29 17:57 | 2026 Mar 26 10:13:36 | 67.6934 | 0.51742 | 5.7974 | 97.3041 | 321.7067 | 2.00812 | – |
| 2026 Mar 28 18:57 | 2026 Mar 26 10:13:36 | 67.6934 | 0.51742 | 5.7974 | 97.3041 | 321.7067 | 2.00812 | – |
| 2026 Mar 27 18:57 | 2026 Mar 26 10:13:36 | 67.6934 | 0.51742 | 5.7974 | 97.3041 | 321.7067 | 2.00812 | – |
| 2026 Mar 26 18:57 | 2026 Mar 26 10:13:36 | 67.6934 | 0.51742 | 5.7974 | 97.3041 | 321.7067 | 2.00812 | – |
| 2026 Mar 24 18:56 | 2026 Mar 10 23:44:09 | 67.6857 | 0.51685 | 5.8493 | 97.6586 | 321.7067 | 2.00812 | – |
| 2026 Mar 23 18:56 | 2026 Mar 10 23:44:09 | 67.6857 | 0.51685 | 5.8493 | 97.6586 | 321.7067 | 2.00812 | – |
| 2026 Mar 22 18:56 | 2026 Mar 10 23:44:09 | 67.6857 | 0.51685 | 5.8493 | 97.6586 | 321.7067 | 2.00812 | – |
| 2026 Mar 21 19:05 | 2026 Mar 10 23:44:09 | 67.6857 | 0.51685 | 5.8493 | 97.6586 | 321.7067 | 2.00812 | – |
| 2026 Mar 20 18:57 | 2026 Mar 10 23:44:09 | 67.6857 | 0.51685 | 5.8493 | 97.6586 | 321.7067 | 2.00812 | – |
| 2026 Mar 19 18:56 | 2026 Mar 10 23:44:09 | 67.6857 | 0.51685 | 5.8493 | 97.6586 | 321.7067 | 2.00812 | – |
| 2026 Mar 18 18:56 | 2026 Mar 10 23:44:09 | 67.6857 | 0.51685 | 5.8493 | 97.6586 | 321.7067 | 2.00812 | – |
| 2026 Mar 17 18:56 | 2026 Mar 10 23:44:09 | 67.6857 | 0.51685 | 5.8493 | 97.6586 | 321.7067 | 2.00812 | – |
| 2026 Mar 16 18:57 | 2026 Mar 10 23:44:09 | 67.6857 | 0.51685 | 5.8493 | 97.6586 | 321.7067 | 2.00812 | – |
| 2026 Mar 15 18:56 | 2026 Mar 10 23:44:09 | 67.6857 | 0.51685 | 5.8493 | 97.6586 | 321.7067 | 2.00812 | – |
| 2026 Mar 14 18:56 | 2026 Mar 09 11:52:57 | 67.6851 | 0.51680 | 5.8543 | 97.6936 | 321.7067 | 2.00812 | – |
| 2026 Mar 13 18:57 | 2026 Mar 09 11:52:57 | 67.6851 | 0.51680 | 5.8543 | 97.6936 | 321.7067 | 2.00812 | – |
| 2026 Mar 12 18:57 | 2026 Mar 09 11:52:57 | 67.6851 | 0.51680 | 5.8543 | 97.6936 | 321.7067 | 2.00812 | – |
| 2026 Mar 11 18:56 | 2026 Mar 09 11:52:57 | 67.6851 | 0.51680 | 5.8543 | 97.6936 | 321.7067 | 2.00812 | – |
| 2026 Mar 10 18:56 | 2026 Mar 09 11:52:57 | 67.6851 | 0.51680 | 5.8543 | 97.6936 | 321.7067 | 2.00812 | – |
| 2026 Mar 09 18:56 | 2026 Feb 28 12:46:01 | 67.6801 | 0.51649 | 5.8844 | 97.8990 | 321.7067 | 2.00812 | – |
| 2026 Mar 08 18:57 | 2026 Feb 28 12:46:01 | 67.6801 | 0.51649 | 5.8844 | 97.8990 | 321.7067 | 2.00812 | – |
| 2026 Mar 07 18:57 | 2026 Feb 28 12:46:01 | 67.6801 | 0.51649 | 5.8844 | 97.8990 | 321.7067 | 2.00812 | – |
| 2026 Mar 06 18:56 | 2026 Feb 28 12:46:01 | 67.6801 | 0.51649 | 5.8844 | 97.8990 | 321.7067 | 2.00812 | – |
| 2026 Mar 05 18:56 | 2026 Feb 28 12:46:01 | 67.6801 | 0.51649 | 5.8844 | 97.8990 | 321.7067 | 2.00812 | – |
| 2026 Mar 04 18:57 | 2026 Feb 28 12:46:01 | 67.6801 | 0.51649 | 5.8844 | 97.8990 | 321.7067 | 2.00812 | – |
| 2026 Mar 03 18:56 | 2026 Feb 26 12:57:47 | 67.6788 | 0.51642 | 5.8911 | 97.9441 | 321.7067 | 2.00812 | – |
| 2026 Mar 02 18:57 | 2026 Feb 26 12:57:47 | 67.6788 | 0.51642 | 5.8911 | 97.9441 | 321.7067 | 2.00812 | – |