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 Apr 10 17:58 | 2026 Apr 07 16:23:46 | 65.6584 | 0.00200 | 21.4305 | 206.7728 | 332.6971 | 2.13103 | – |
| 2026 Apr 09 18:01 | 2026 Apr 07 16:23:46 | 65.6584 | 0.00200 | 21.4305 | 206.7728 | 332.6971 | 2.13103 | – |
| 2026 Apr 08 17:57 | 2026 Apr 07 16:23:46 | 65.6584 | 0.00200 | 21.4305 | 206.7728 | 332.6971 | 2.13103 | – |
| 2026 Apr 07 17:57 | 2026 Mar 29 07:12:05 | 65.6633 | 0.00199 | 21.4515 | 207.5103 | 332.6971 | 2.13103 | – |
| 2026 Apr 06 17:57 | 2026 Mar 29 07:12:05 | 65.6633 | 0.00199 | 21.4515 | 207.5103 | 332.6971 | 2.13103 | – |
| 2026 Apr 05 17:56 | 2026 Mar 29 07:12:05 | 65.6633 | 0.00199 | 21.4515 | 207.5103 | 332.6971 | 2.13103 | – |
| 2026 Apr 04 17:57 | 2026 Mar 29 07:12:05 | 65.6633 | 0.00199 | 21.4515 | 207.5103 | 332.6971 | 2.13103 | – |
| 2026 Apr 03 17:56 | 2026 Mar 29 07:12:05 | 65.6633 | 0.00199 | 21.4515 | 207.5103 | 332.6971 | 2.13103 | – |
| 2026 Apr 02 18:03 | 2026 Mar 29 07:12:05 | 65.6633 | 0.00199 | 21.4515 | 207.5103 | 332.6971 | 2.13103 | – |
| 2026 Mar 31 17:57 | 2026 Mar 21 07:34:08 | 65.6694 | 0.00198 | 21.4694 | 206.7095 | 332.6971 | 2.13103 | – |
| 2026 Mar 30 17:58 | 2026 Mar 21 07:34:08 | 65.6694 | 0.00198 | 21.4694 | 206.7095 | 332.6971 | 2.13103 | – |
| 2026 Mar 29 17:57 | 2026 Mar 21 07:34:08 | 65.6694 | 0.00198 | 21.4694 | 206.7095 | 332.6971 | 2.13103 | – |
| 2026 Mar 28 18:57 | 2026 Mar 21 07:34:08 | 65.6694 | 0.00198 | 21.4694 | 206.7095 | 332.6971 | 2.13103 | – |
| 2026 Mar 27 18:57 | 2026 Mar 21 07:34:08 | 65.6694 | 0.00198 | 21.4694 | 206.7095 | 332.6971 | 2.13103 | – |
| 2026 Mar 26 18:57 | 2026 Mar 21 07:34:08 | 65.6694 | 0.00198 | 21.4694 | 206.7095 | 332.6971 | 2.13103 | – |
| 2026 Mar 25 18:56 | 2026 Mar 20 09:10:54 | 65.6728 | 0.00210 | 21.4715 | 211.1315 | 332.6971 | 2.13103 | – |
| 2026 Mar 24 18:56 | 2026 Mar 20 09:10:54 | 65.6728 | 0.00210 | 21.4715 | 211.1315 | 332.6971 | 2.13103 | – |
| 2026 Mar 23 18:56 | 2026 Mar 20 09:10:54 | 65.6728 | 0.00210 | 21.4715 | 211.1315 | 332.6971 | 2.13103 | – |
| 2026 Mar 22 18:56 | 2026 Mar 20 09:10:54 | 65.6728 | 0.00210 | 21.4715 | 211.1315 | 332.6971 | 2.13103 | – |
| 2026 Mar 21 19:05 | 2026 Mar 20 09:10:54 | 65.6728 | 0.00210 | 21.4715 | 211.1315 | 332.6971 | 2.13103 | – |
| 2026 Mar 20 18:57 | 2026 Mar 20 09:10:54 | 65.6728 | 0.00210 | 21.4715 | 211.1315 | 332.6971 | 2.13103 | – |
| 2026 Mar 19 18:56 | 2026 Mar 11 11:09:08 | 65.6726 | 0.00195 | 21.4915 | 205.1707 | 332.6971 | 2.13103 | – |
| 2026 Mar 18 18:56 | 2026 Mar 11 11:09:08 | 65.6726 | 0.00195 | 21.4915 | 205.1707 | 332.6971 | 2.13103 | – |
| 2026 Mar 17 18:56 | 2026 Mar 11 11:09:08 | 65.6726 | 0.00195 | 21.4915 | 205.1707 | 332.6971 | 2.13103 | – |
| 2026 Mar 16 18:57 | 2026 Mar 11 11:09:08 | 65.6726 | 0.00195 | 21.4915 | 205.1707 | 332.6971 | 2.13103 | – |
| 2026 Mar 15 18:56 | 2026 Mar 11 11:09:08 | 65.6726 | 0.00195 | 21.4915 | 205.1707 | 332.6971 | 2.13103 | – |
| 2026 Mar 14 18:56 | 2026 Mar 02 01:56:30 | 65.6777 | 0.00197 | 21.5126 | 206.7845 | 332.6971 | 2.13103 | – |