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 Sep 12 17:57 | 2025 Sep 01 05:16:41 | 65.7711 | 0.00206 | 21.9195 | 209.0914 | 133.1806 | 2.13103 | – |
| 2025 Sep 11 17:57 | 2025 Sep 01 05:16:41 | 65.7711 | 0.00206 | 21.9195 | 209.0914 | 133.1806 | 2.13103 | – |
| 2025 Sep 10 17:56 | 2025 Sep 01 05:16:41 | 65.7711 | 0.00206 | 21.9195 | 209.0914 | 133.1806 | 2.13103 | – |
| 2025 Sep 08 17:57 | 2025 Sep 01 05:16:41 | 65.7711 | 0.00206 | 21.9195 | 209.0914 | 133.1806 | 2.13103 | – |
| 2025 Sep 07 17:56 | 2025 Sep 01 05:16:41 | 65.7711 | 0.00206 | 21.9195 | 209.0914 | 133.1806 | 2.13103 | – |
| 2025 Sep 06 20:41 | 2025 Sep 01 05:16:41 | 65.7711 | 0.00206 | 21.9195 | 209.0914 | 133.1806 | 2.13103 | – |
| 2025 Sep 03 17:57 | 2025 Sep 01 05:16:41 | 65.7711 | 0.00206 | 21.9195 | 209.0914 | 133.1806 | 2.13103 | – |
| 2025 Sep 02 17:56 | 2025 Aug 24 06:34:31 | 65.7754 | 0.00202 | 21.9372 | 207.2730 | 133.1806 | 2.13103 | – |
| 2025 Sep 01 17:56 | 2025 Aug 24 06:34:31 | 65.7754 | 0.00202 | 21.9372 | 207.2730 | 133.1806 | 2.13103 | – |
| 2025 Aug 31 17:56 | 2025 Aug 24 06:34:31 | 65.7754 | 0.00202 | 21.9372 | 207.2730 | 133.1806 | 2.13103 | – |
| 2025 Aug 30 17:56 | 2025 Aug 24 06:34:31 | 65.7754 | 0.00202 | 21.9372 | 207.2730 | 133.1806 | 2.13103 | – |
| 2025 Aug 29 17:56 | 2025 Aug 24 06:34:31 | 65.7754 | 0.00202 | 21.9372 | 207.2730 | 133.1806 | 2.13103 | – |
| 2025 Aug 28 17:57 | 2025 Aug 24 06:34:31 | 65.7754 | 0.00202 | 21.9372 | 207.2730 | 133.1806 | 2.13103 | – |
| 2025 Aug 27 17:56 | 2025 Aug 18 04:02:13 | 65.7785 | 0.00201 | 21.9508 | 207.0107 | 133.1806 | 2.13103 | – |
| 2025 Aug 26 17:56 | 2025 Aug 18 04:02:13 | 65.7785 | 0.00201 | 21.9508 | 207.0107 | 133.1806 | 2.13103 | – |
| 2025 Aug 25 17:56 | 2025 Aug 18 04:02:13 | 65.7785 | 0.00201 | 21.9508 | 207.0107 | 133.1806 | 2.13103 | – |
| 2025 Aug 24 17:56 | 2025 Aug 18 04:02:13 | 65.7785 | 0.00201 | 21.9508 | 207.0107 | 133.1806 | 2.13103 | – |
| 2025 Aug 23 17:56 | 2025 Aug 18 04:02:13 | 65.7785 | 0.00201 | 21.9508 | 207.0107 | 133.1806 | 2.13103 | – |
| 2025 Aug 22 17:56 | 2025 Aug 17 15:44:11 | 65.7788 | 0.00201 | 21.9520 | 206.9600 | 133.1806 | 2.13103 | – |
| 2025 Aug 20 17:56 | 2025 Aug 17 15:44:11 | 65.7788 | 0.00201 | 21.9520 | 206.9600 | 133.1806 | 2.13103 | – |
| 2025 Aug 19 17:56 | 2025 Aug 17 15:44:11 | 65.7788 | 0.00201 | 21.9520 | 206.9600 | 133.1806 | 2.13103 | – |
| 2025 Aug 18 17:56 | 2025 Aug 17 15:44:11 | 65.7788 | 0.00201 | 21.9520 | 206.9600 | 133.1806 | 2.13103 | – |