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 Jul 01 17:56 | 2025 Jun 28 08:53:00 | 66.4508 | 0.00619 | 22.4310 | 192.0431 | 149.3509 | 2.13837 | – |
| 2025 Jun 30 17:56 | 2025 Jun 28 08:53:00 | 66.4508 | 0.00619 | 22.4310 | 192.0431 | 149.3509 | 2.13837 | – |
| 2025 Jun 29 17:56 | 2025 Jun 28 08:53:00 | 66.4508 | 0.00619 | 22.4310 | 192.0431 | 149.3509 | 2.13837 | – |
| 2025 Jun 28 17:56 | 2025 Jun 28 08:53:00 | 66.4508 | 0.00619 | 22.4310 | 192.0431 | 149.3509 | 2.13837 | – |
| 2025 Jun 27 17:56 | 2025 Jun 21 08:56:54 | 66.4534 | 0.00618 | 22.4463 | 192.0641 | 149.3509 | 2.13837 | – |
| 2025 Jun 26 17:56 | 2025 Jun 21 08:56:54 | 66.4534 | 0.00618 | 22.4463 | 192.0641 | 149.3509 | 2.13837 | – |
| 2025 Jun 25 17:56 | 2025 Jun 21 08:56:54 | 66.4534 | 0.00618 | 22.4463 | 192.0641 | 149.3509 | 2.13837 | – |
| 2025 Jun 24 17:56 | 2025 Jun 21 08:56:54 | 66.4534 | 0.00618 | 22.4463 | 192.0641 | 149.3509 | 2.13837 | – |
| 2025 Jun 23 17:56 | 2025 Jun 21 08:56:54 | 66.4534 | 0.00618 | 22.4463 | 192.0641 | 149.3509 | 2.13837 | – |
| 2025 Jun 22 17:56 | 2025 Jun 16 10:59:20 | 66.4552 | 0.00618 | 22.4571 | 192.0658 | 149.3509 | 2.13837 | – |
| 2025 Jun 21 17:56 | 2025 Jun 16 10:59:20 | 66.4552 | 0.00618 | 22.4571 | 192.0658 | 149.3509 | 2.13837 | – |
| 2025 Jun 20 17:57 | 2025 Jun 16 10:59:20 | 66.4552 | 0.00618 | 22.4571 | 192.0658 | 149.3509 | 2.13837 | – |
| 2025 Jun 19 17:56 | 2025 Jun 16 10:59:20 | 66.4552 | 0.00618 | 22.4571 | 192.0658 | 149.3509 | 2.13837 | – |
| 2025 Jun 18 17:56 | 2025 Jun 16 10:59:20 | 66.4552 | 0.00618 | 22.4571 | 192.0658 | 149.3509 | 2.13837 | – |
| 2025 Jun 17 17:56 | 2025 Jun 16 10:59:20 | 66.4552 | 0.00618 | 22.4571 | 192.0658 | 149.3509 | 2.13837 | – |
| 2025 Jun 16 17:56 | 2025 Jun 11 14:02:15 | 66.4570 | 0.00617 | 22.4678 | 192.0806 | 149.3509 | 2.13837 | – |
| 2025 Jun 15 17:56 | 2025 Jun 11 14:02:15 | 66.4570 | 0.00617 | 22.4678 | 192.0806 | 149.3509 | 2.13837 | – |
| 2025 Jun 14 17:56 | 2025 Jun 11 14:02:15 | 66.4570 | 0.00617 | 22.4678 | 192.0806 | 149.3509 | 2.13837 | – |
| 2025 Jun 13 17:56 | 2025 Jun 11 14:02:15 | 66.4570 | 0.00617 | 22.4678 | 192.0806 | 149.3509 | 2.13837 | – |
| 2025 Jun 12 17:56 | 2025 Jun 11 14:02:15 | 66.4570 | 0.00617 | 22.4678 | 192.0806 | 149.3509 | 2.13837 | – |
| 2025 Jun 11 17:56 | 2025 Jun 06 10:03:18 | 66.4589 | 0.00617 | 22.4791 | 192.0843 | 149.3509 | 2.13837 | – |
| 2025 Jun 10 17:56 | 2025 Jun 06 10:03:18 | 66.4589 | 0.00617 | 22.4791 | 192.0843 | 149.3509 | 2.13837 | – |
| 2025 Jun 09 17:56 | 2025 Jun 06 10:03:18 | 66.4589 | 0.00617 | 22.4791 | 192.0843 | 149.3509 | 2.13837 | – |
| 2025 Jun 08 17:56 | 2025 Jun 06 10:03:18 | 66.4589 | 0.00617 | 22.4791 | 192.0843 | 149.3509 | 2.13837 | – |
| 2025 Jun 07 17:56 | 2025 Jun 06 10:03:18 | 66.4589 | 0.00617 | 22.4791 | 192.0843 | 149.3509 | 2.13837 | – |
| 2025 Jun 06 17:56 | 2025 Jun 06 10:03:18 | 66.4589 | 0.00617 | 22.4791 | 192.0843 | 149.3509 | 2.13837 | – |
| 2025 Jun 05 17:56 | 2025 Jun 01 00:52:38 | 66.4607 | 0.00616 | 22.4909 | 192.1245 | 149.3509 | 2.13837 | – |
| 2025 Jun 04 17:57 | 2025 Jun 01 00:52:38 | 66.4607 | 0.00616 | 22.4909 | 192.1245 | 149.3509 | 2.13837 | – |