Orbital elements of COSMOS 1521
| Launched | 28 December 1983 |
| Flight ended | – |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 14592 |
| Alternative names |
GLONASS GLONASS-GVM 4 |
| 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 May 09 17:57 | 2025 May 07 05:53:42 | 66.4680 | 0.00613 | 22.5453 | 192.1679 | 343.4848 | 2.13837 | – |
| 2025 May 08 17:56 | 2025 Apr 24 03:40:49 | 66.4721 | 0.00613 | 22.5740 | 192.4019 | 343.4848 | 2.13837 | – |
| 2025 May 07 17:56 | 2025 Apr 24 03:40:49 | 66.4721 | 0.00613 | 22.5740 | 192.4019 | 343.4848 | 2.13837 | – |
| 2025 May 06 17:57 | 2025 Apr 24 03:40:49 | 66.4721 | 0.00613 | 22.5740 | 192.4019 | 343.4848 | 2.13837 | – |
| 2025 May 05 17:56 | 2025 Apr 24 03:40:49 | 66.4721 | 0.00613 | 22.5740 | 192.4019 | 343.4848 | 2.13837 | – |
| 2025 May 04 17:57 | 2025 Apr 24 03:40:49 | 66.4721 | 0.00613 | 22.5740 | 192.4019 | 343.4848 | 2.13837 | – |
| 2025 May 03 17:57 | 2025 Apr 24 03:40:49 | 66.4721 | 0.00613 | 22.5740 | 192.4019 | 343.4848 | 2.13837 | – |
| 2025 May 01 17:56 | 2025 Apr 22 06:54:49 | 66.4728 | 0.00613 | 22.5781 | 192.4132 | 343.4848 | 2.13837 | – |
| 2025 Apr 30 17:56 | 2025 Apr 22 06:54:49 | 66.4728 | 0.00613 | 22.5781 | 192.4132 | 343.4848 | 2.13837 | – |
| 2025 Apr 29 17:57 | 2025 Apr 22 06:54:49 | 66.4728 | 0.00613 | 22.5781 | 192.4132 | 343.4848 | 2.13837 | – |
| 2025 Apr 27 17:56 | 2025 Apr 22 06:54:49 | 66.4728 | 0.00613 | 22.5781 | 192.4132 | 343.4848 | 2.13837 | – |
| 2025 Apr 26 17:57 | 2025 Apr 22 06:54:49 | 66.4728 | 0.00613 | 22.5781 | 192.4132 | 343.4848 | 2.13837 | – |
| 2025 Apr 25 17:56 | 2025 Apr 22 06:54:49 | 66.4728 | 0.00613 | 22.5781 | 192.4132 | 343.4848 | 2.13837 | – |
| 2025 Apr 24 17:56 | 2025 Apr 22 06:54:49 | 66.4728 | 0.00613 | 22.5781 | 192.4132 | 343.4848 | 2.13837 | – |
| 2025 Apr 23 17:57 | 2025 Apr 22 06:54:49 | 66.4728 | 0.00613 | 22.5781 | 192.4132 | 343.4848 | 2.13837 | – |
| 2025 Apr 22 17:56 | 2025 Apr 22 06:54:49 | 66.4728 | 0.00613 | 22.5781 | 192.4132 | 343.4848 | 2.13837 | – |
| 2025 Apr 21 17:57 | 2025 Apr 15 06:26:28 | 66.4752 | 0.00612 | 22.5935 | 192.4678 | 343.4848 | 2.13837 | – |
| 2025 Apr 20 17:56 | 2025 Apr 15 06:26:28 | 66.4752 | 0.00612 | 22.5935 | 192.4678 | 343.4848 | 2.13837 | – |
| 2025 Apr 19 17:56 | 2025 Apr 15 06:26:28 | 66.4752 | 0.00612 | 22.5935 | 192.4678 | 343.4848 | 2.13837 | – |
| 2025 Apr 18 17:57 | 2025 Apr 15 06:26:28 | 66.4752 | 0.00612 | 22.5935 | 192.4678 | 343.4848 | 2.13837 | – |
| 2025 Apr 17 17:56 | 2025 Apr 15 06:26:28 | 66.4752 | 0.00612 | 22.5935 | 192.4678 | 343.4848 | 2.13837 | – |
| 2025 Apr 16 17:57 | 2025 Apr 15 06:26:28 | 66.4752 | 0.00612 | 22.5935 | 192.4678 | 343.4848 | 2.13837 | – |
| 2025 Apr 15 17:56 | 2025 Apr 07 07:27:26 | 66.4779 | 0.00612 | 22.6110 | 192.5371 | 343.4848 | 2.13837 | – |
| 2025 Apr 14 17:56 | 2025 Apr 07 07:27:26 | 66.4779 | 0.00612 | 22.6110 | 192.5371 | 343.4848 | 2.13837 | – |