Orbital elements of COSMOS 1998
| Launched | 9 February 1989 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 19789 |
| 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 |
| 2024 Apr 26 17:54 | 2024 Apr 21 22:31:11 | 82.6064 | 0.00147 | 7.5594 | 272.8820 | 87.0587 | 12.64900 | – |
| 2024 Apr 25 17:55 | 2024 Apr 21 22:31:11 | 82.6064 | 0.00147 | 7.5594 | 272.8820 | 87.0587 | 12.64900 | – |
| 2024 Apr 24 17:53 | 2024 Apr 21 22:31:11 | 82.6064 | 0.00147 | 7.5594 | 272.8820 | 87.0587 | 12.64900 | – |
| 2024 Apr 23 17:53 | 2024 Apr 21 22:31:11 | 82.6064 | 0.00147 | 7.5594 | 272.8820 | 87.0587 | 12.64900 | – |
| 2024 Apr 22 17:52 | 2024 Apr 21 22:31:11 | 82.6064 | 0.00147 | 7.5594 | 272.8820 | 87.0587 | 12.64900 | – |
| 2024 Apr 21 17:53 | 2024 Apr 16 02:02:35 | 82.6064 | 0.00148 | 7.8086 | 287.1821 | 87.0587 | 12.64900 | – |
| 2024 Apr 20 17:52 | 2024 Apr 16 02:02:35 | 82.6064 | 0.00148 | 7.8086 | 287.1821 | 87.0587 | 12.64900 | – |
| 2024 Apr 19 17:53 | 2024 Apr 16 02:02:35 | 82.6064 | 0.00148 | 7.8086 | 287.1821 | 87.0587 | 12.64900 | – |
| 2024 Apr 18 17:57 | 2024 Apr 16 02:02:35 | 82.6064 | 0.00148 | 7.8086 | 287.1821 | 87.0587 | 12.64900 | – |
| 2024 Apr 17 17:53 | 2024 Apr 16 02:02:35 | 82.6064 | 0.00148 | 7.8086 | 287.1821 | 87.0587 | 12.64900 | – |
| 2024 Apr 16 17:53 | 2024 Apr 16 02:02:35 | 82.6064 | 0.00148 | 7.8086 | 287.1821 | 87.0587 | 12.64900 | – |
| 2024 Apr 15 17:54 | 2024 Apr 09 18:10:36 | 82.6069 | 0.00149 | 8.0780 | 302.6411 | 87.0587 | 12.64900 | – |
| 2024 Apr 14 17:53 | 2024 Apr 09 18:10:36 | 82.6069 | 0.00149 | 8.0780 | 302.6411 | 87.0587 | 12.64900 | – |
| 2024 Apr 13 17:53 | 2024 Apr 09 18:10:36 | 82.6069 | 0.00149 | 8.0780 | 302.6411 | 87.0587 | 12.64900 | – |
| 2024 Apr 12 17:53 | 2024 Apr 09 18:10:36 | 82.6069 | 0.00149 | 8.0780 | 302.6411 | 87.0587 | 12.64900 | – |
| 2024 Apr 11 17:54 | 2024 Apr 09 18:10:36 | 82.6069 | 0.00149 | 8.0780 | 302.6411 | 87.0587 | 12.64900 | – |
| 2024 Apr 10 17:56 | 2024 Apr 09 18:10:36 | 82.6069 | 0.00149 | 8.0780 | 302.6411 | 87.0587 | 12.64900 | – |
| 2024 Apr 09 17:56 | 2024 Apr 05 04:04:24 | 82.6073 | 0.00150 | 8.2733 | 313.7256 | 87.0587 | 12.64900 | – |
| 2024 Apr 08 17:55 | 2024 Apr 05 04:04:24 | 82.6073 | 0.00150 | 8.2733 | 313.7256 | 87.0587 | 12.64900 | – |
| 2024 Apr 07 17:53 | 2024 Apr 05 04:04:24 | 82.6073 | 0.00150 | 8.2733 | 313.7256 | 87.0587 | 12.64900 | – |
| 2024 Apr 06 17:58 | 2024 Apr 05 04:04:24 | 82.6073 | 0.00150 | 8.2733 | 313.7256 | 87.0587 | 12.64900 | – |
| 2024 Apr 05 17:53 | 2024 Apr 05 04:04:24 | 82.6073 | 0.00150 | 8.2733 | 313.7256 | 87.0587 | 12.64900 | – |
| 2024 Apr 04 17:56 | 2024 Mar 31 12:04:18 | 82.6082 | 0.00151 | 8.4720 | 324.8969 | 87.0587 | 12.64900 | – |
| 2024 Apr 03 17:53 | 2024 Mar 31 12:04:18 | 82.6082 | 0.00151 | 8.4720 | 324.8969 | 87.0587 | 12.64900 | – |
| 2024 Apr 02 17:52 | 2024 Mar 31 12:04:18 | 82.6082 | 0.00151 | 8.4720 | 324.8969 | 87.0587 | 12.64900 | – |
| 2024 Apr 01 17:52 | 2024 Mar 31 12:04:18 | 82.6082 | 0.00151 | 8.4720 | 324.8969 | 87.0587 | 12.64900 | – |
| 2024 Mar 31 17:52 | 2024 Mar 31 12:04:18 | 82.6082 | 0.00151 | 8.4720 | 324.8969 | 87.0587 | 12.64900 | – |
| 2024 Mar 30 18:52 | 2024 Mar 24 20:36:42 | 82.6092 | 0.00154 | 8.7548 | 340.6995 | 87.0587 | 12.64900 | – |