Orbital elements of COSMOS 1884
| Launched | 15 September 1987 |
| Flight ended | – |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 18356 |
| Alternative names |
GLONASS GLONASS 21 |
| 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 Aug 31 17:56 | 2025 Aug 24 06:34:31 | 65.7754 | 0.00202 | 21.9372 | 207.2730 | 159.1570 | 2.13103 | – |
| 2025 Aug 30 17:56 | 2025 Aug 24 06:34:31 | 65.7754 | 0.00202 | 21.9372 | 207.2730 | 159.1570 | 2.13103 | – |
| 2025 Aug 29 17:56 | 2025 Aug 24 06:34:31 | 65.7754 | 0.00202 | 21.9372 | 207.2730 | 159.1570 | 2.13103 | – |
| 2025 Aug 28 17:57 | 2025 Aug 24 06:34:31 | 65.7754 | 0.00202 | 21.9372 | 207.2730 | 159.1570 | 2.13103 | – |
| 2025 Aug 27 17:56 | 2025 Aug 18 04:02:13 | 65.7785 | 0.00201 | 21.9508 | 207.0107 | 159.1570 | 2.13103 | – |
| 2025 Aug 26 17:56 | 2025 Aug 18 04:02:13 | 65.7785 | 0.00201 | 21.9508 | 207.0107 | 159.1570 | 2.13103 | – |
| 2025 Aug 25 17:56 | 2025 Aug 18 04:02:13 | 65.7785 | 0.00201 | 21.9508 | 207.0107 | 159.1570 | 2.13103 | – |
| 2025 Aug 24 17:56 | 2025 Aug 18 04:02:13 | 65.7785 | 0.00201 | 21.9508 | 207.0107 | 159.1570 | 2.13103 | – |
| 2025 Aug 23 17:56 | 2025 Aug 18 04:02:13 | 65.7785 | 0.00201 | 21.9508 | 207.0107 | 159.1570 | 2.13103 | – |
| 2025 Aug 22 17:56 | 2025 Aug 17 15:44:11 | 65.7788 | 0.00201 | 21.9520 | 206.9600 | 159.1570 | 2.13103 | – |
| 2025 Aug 20 17:56 | 2025 Aug 17 15:44:11 | 65.7788 | 0.00201 | 21.9520 | 206.9600 | 159.1570 | 2.13103 | – |
| 2025 Aug 19 17:56 | 2025 Aug 17 15:44:11 | 65.7788 | 0.00201 | 21.9520 | 206.9600 | 159.1570 | 2.13103 | – |
| 2025 Aug 18 17:56 | 2025 Aug 17 15:44:11 | 65.7788 | 0.00201 | 21.9520 | 206.9600 | 159.1570 | 2.13103 | – |
| 2025 Aug 16 17:56 | 2025 Aug 12 13:13:41 | 65.7816 | 0.00202 | 21.9633 | 207.4639 | 159.1570 | 2.13103 | – |
| 2025 Aug 15 17:57 | 2025 Aug 12 13:13:41 | 65.7816 | 0.00202 | 21.9633 | 207.4639 | 159.1570 | 2.13103 | – |
| 2025 Aug 14 17:56 | 2025 Aug 12 13:13:41 | 65.7816 | 0.00202 | 21.9633 | 207.4639 | 159.1570 | 2.13103 | – |
| 2025 Aug 13 17:58 | 2025 Aug 12 13:13:41 | 65.7816 | 0.00202 | 21.9633 | 207.4639 | 159.1570 | 2.13103 | – |
| 2025 Aug 12 17:56 | 2025 Aug 12 13:13:41 | 65.7816 | 0.00202 | 21.9633 | 207.4639 | 159.1570 | 2.13103 | – |
| 2025 Aug 11 17:56 | 2025 Aug 06 13:00:53 | 65.7844 | 0.00202 | 21.9767 | 204.0526 | 159.1570 | 2.13103 | – |
| 2025 Aug 10 17:57 | 2025 Aug 06 13:00:53 | 65.7844 | 0.00202 | 21.9767 | 204.0526 | 159.1570 | 2.13103 | – |
| 2025 Aug 09 17:56 | 2025 Aug 06 13:00:53 | 65.7844 | 0.00202 | 21.9767 | 204.0526 | 159.1570 | 2.13103 | – |
| 2025 Aug 08 17:56 | 2025 Aug 06 13:00:53 | 65.7844 | 0.00202 | 21.9767 | 204.0526 | 159.1570 | 2.13103 | – |
| 2025 Aug 07 17:56 | 2025 Aug 06 13:00:53 | 65.7844 | 0.00202 | 21.9767 | 204.0526 | 159.1570 | 2.13103 | – |
| 2025 Aug 05 17:56 | 2025 Jul 25 16:51:31 | 65.7906 | 0.00197 | 22.0031 | 206.3421 | 159.1570 | 2.13103 | – |
| 2025 Aug 04 17:56 | 2025 Jul 25 16:51:31 | 65.7906 | 0.00197 | 22.0031 | 206.3421 | 159.1570 | 2.13103 | – |