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 |
| 2026 May 10 17:57 | 2026 May 08 04:08:50 | 65.6432 | 0.00202 | 21.3621 | 206.6707 | 323.3791 | 2.13103 | – |
| 2026 May 09 17:57 | 2026 May 04 21:35:16 | 65.6459 | 0.00201 | 21.3694 | 206.6857 | 323.3791 | 2.13103 | – |
| 2026 May 08 17:57 | 2026 May 04 21:35:16 | 65.6459 | 0.00201 | 21.3694 | 206.6857 | 323.3791 | 2.13103 | – |
| 2026 May 07 17:58 | 2026 May 04 21:35:16 | 65.6459 | 0.00201 | 21.3694 | 206.6857 | 323.3791 | 2.13103 | – |
| 2026 May 06 17:57 | 2026 May 04 21:35:16 | 65.6459 | 0.00201 | 21.3694 | 206.6857 | 323.3791 | 2.13103 | – |
| 2026 May 05 17:57 | 2026 May 04 21:35:16 | 65.6459 | 0.00201 | 21.3694 | 206.6857 | 323.3791 | 2.13103 | – |
| 2026 May 04 17:57 | 2026 Apr 25 12:24:36 | 65.6506 | 0.00203 | 21.3904 | 206.5976 | 323.3791 | 2.13103 | – |
| 2026 May 03 17:57 | 2026 Apr 25 12:24:36 | 65.6506 | 0.00203 | 21.3904 | 206.5976 | 323.3791 | 2.13103 | – |
| 2026 May 02 17:57 | 2026 Apr 25 12:24:36 | 65.6506 | 0.00203 | 21.3904 | 206.5976 | 323.3791 | 2.13103 | – |
| 2026 May 01 17:56 | 2026 Apr 25 12:24:36 | 65.6506 | 0.00203 | 21.3904 | 206.5976 | 323.3791 | 2.13103 | – |
| 2026 Apr 30 17:56 | 2026 Apr 25 12:24:36 | 65.6506 | 0.00203 | 21.3904 | 206.5976 | 323.3791 | 2.13103 | – |
| 2026 Apr 29 17:57 | 2026 Apr 21 00:19:17 | 65.6526 | 0.00202 | 21.4006 | 206.8753 | 323.3791 | 2.13103 | – |
| 2026 Apr 28 17:56 | 2026 Apr 21 00:19:17 | 65.6526 | 0.00202 | 21.4006 | 206.8753 | 323.3791 | 2.13103 | – |
| 2026 Apr 27 17:58 | 2026 Apr 21 00:19:17 | 65.6526 | 0.00202 | 21.4006 | 206.8753 | 323.3791 | 2.13103 | – |
| 2026 Apr 26 17:58 | 2026 Apr 21 00:19:17 | 65.6526 | 0.00202 | 21.4006 | 206.8753 | 323.3791 | 2.13103 | – |
| 2026 Apr 25 17:58 | 2026 Apr 21 00:19:17 | 65.6526 | 0.00202 | 21.4006 | 206.8753 | 323.3791 | 2.13103 | – |
| 2026 Apr 24 17:59 | 2026 Apr 21 00:19:17 | 65.6526 | 0.00202 | 21.4006 | 206.8753 | 323.3791 | 2.13103 | – |
| 2026 Apr 23 17:57 | 2026 Apr 15 04:54:50 | 65.6550 | 0.00200 | 21.4136 | 206.4443 | 323.3791 | 2.13103 | – |
| 2026 Apr 22 17:57 | 2026 Apr 15 04:54:50 | 65.6550 | 0.00200 | 21.4136 | 206.4443 | 323.3791 | 2.13103 | – |
| 2026 Apr 21 17:57 | 2026 Apr 15 04:54:50 | 65.6550 | 0.00200 | 21.4136 | 206.4443 | 323.3791 | 2.13103 | – |
| 2026 Apr 20 17:57 | 2026 Apr 15 04:54:50 | 65.6550 | 0.00200 | 21.4136 | 206.4443 | 323.3791 | 2.13103 | – |
| 2026 Apr 19 17:58 | 2026 Apr 15 04:54:50 | 65.6550 | 0.00200 | 21.4136 | 206.4443 | 323.3791 | 2.13103 | – |
| 2026 Apr 18 17:56 | 2026 Apr 07 16:23:46 | 65.6584 | 0.00200 | 21.4305 | 206.7728 | 323.3791 | 2.13103 | – |
| 2026 Apr 16 17:57 | 2026 Apr 07 16:23:46 | 65.6584 | 0.00200 | 21.4305 | 206.7728 | 323.3791 | 2.13103 | – |
| 2026 Apr 14 17:57 | 2026 Apr 07 16:23:46 | 65.6584 | 0.00200 | 21.4305 | 206.7728 | 323.3791 | 2.13103 | – |
| 2026 Apr 13 17:57 | 2026 Apr 07 16:23:46 | 65.6584 | 0.00200 | 21.4305 | 206.7728 | 323.3791 | 2.13103 | – |