Orbital elements of COSMOS 1999
| Launched | 9 February 1989 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 19790 |
| 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 Jan 07 18:57 | 2026 Jan 06 03:33:43 | 82.6171 | 0.00189 | 4.6827 | 229.9758 | 157.9478 | 12.65746 | – |
| 2026 Jan 06 18:56 | 2026 Jan 06 03:33:43 | 82.6171 | 0.00189 | 4.6827 | 229.9758 | 157.9478 | 12.65746 | – |
| 2026 Jan 05 18:57 | 2025 Dec 31 15:30:27 | 82.6178 | 0.00187 | 4.9170 | 243.0121 | 157.9478 | 12.65746 | – |
| 2026 Jan 04 18:56 | 2025 Dec 31 15:30:27 | 82.6178 | 0.00187 | 4.9170 | 243.0121 | 157.9478 | 12.65746 | – |
| 2026 Jan 03 18:57 | 2025 Dec 31 15:30:27 | 82.6178 | 0.00187 | 4.9170 | 243.0121 | 157.9478 | 12.65746 | – |
| 2026 Jan 01 18:56 | 2025 Dec 31 15:30:27 | 82.6178 | 0.00187 | 4.9170 | 243.0121 | 157.9478 | 12.65746 | – |
| 2025 Dec 31 18:57 | 2025 Dec 31 15:30:27 | 82.6178 | 0.00187 | 4.9170 | 243.0121 | 157.9478 | 12.65746 | – |
| 2025 Dec 30 18:56 | 2025 Dec 26 11:22:03 | 82.6183 | 0.00186 | 5.1373 | 255.3483 | 157.9478 | 12.65746 | – |
| 2025 Dec 29 18:56 | 2025 Dec 26 11:22:03 | 82.6183 | 0.00186 | 5.1373 | 255.3483 | 157.9478 | 12.65746 | – |
| 2025 Dec 28 18:57 | 2025 Dec 26 11:22:03 | 82.6183 | 0.00186 | 5.1373 | 255.3483 | 157.9478 | 12.65746 | – |
| 2025 Dec 27 18:57 | 2025 Dec 26 11:22:03 | 82.6183 | 0.00186 | 5.1373 | 255.3483 | 157.9478 | 12.65746 | – |
| 2025 Dec 26 18:56 | 2025 Dec 26 11:22:03 | 82.6183 | 0.00186 | 5.1373 | 255.3483 | 157.9478 | 12.65746 | – |
| 2025 Dec 25 18:57 | 2025 Dec 20 07:39:45 | 82.6186 | 0.00185 | 5.3994 | 270.0817 | 157.9478 | 12.65746 | – |
| 2025 Dec 24 18:56 | 2025 Dec 20 07:39:45 | 82.6186 | 0.00185 | 5.3994 | 270.0817 | 157.9478 | 12.65746 | – |
| 2025 Dec 23 18:56 | 2025 Dec 20 07:39:45 | 82.6186 | 0.00185 | 5.3994 | 270.0817 | 157.9478 | 12.65746 | – |
| 2025 Dec 22 18:57 | 2025 Dec 20 07:39:45 | 82.6186 | 0.00185 | 5.3994 | 270.0817 | 157.9478 | 12.65746 | – |
| 2025 Dec 21 18:57 | 2025 Dec 20 07:39:45 | 82.6186 | 0.00185 | 5.3994 | 270.0817 | 157.9478 | 12.65746 | – |
| 2025 Dec 20 18:57 | 2025 Dec 20 07:39:45 | 82.6186 | 0.00185 | 5.3994 | 270.0817 | 157.9478 | 12.65746 | – |
| 2025 Dec 19 18:57 | 2025 Dec 12 06:08:55 | 82.6184 | 0.00185 | 5.7427 | 289.5104 | 157.9478 | 12.65746 | – |
| 2025 Dec 18 18:57 | 2025 Dec 12 06:08:55 | 82.6184 | 0.00185 | 5.7427 | 289.5104 | 157.9478 | 12.65746 | – |
| 2025 Dec 17 18:58 | 2025 Dec 12 06:08:55 | 82.6184 | 0.00185 | 5.7427 | 289.5104 | 157.9478 | 12.65746 | – |
| 2025 Dec 16 18:57 | 2025 Dec 12 06:08:55 | 82.6184 | 0.00185 | 5.7427 | 289.5104 | 157.9478 | 12.65746 | – |
| 2025 Dec 15 18:58 | 2025 Dec 12 06:08:55 | 82.6184 | 0.00185 | 5.7427 | 289.5104 | 157.9478 | 12.65746 | – |
| 2025 Dec 14 18:56 | 2025 Dec 12 06:08:55 | 82.6184 | 0.00185 | 5.7427 | 289.5104 | 157.9478 | 12.65746 | – |
| 2025 Dec 13 18:56 | 2025 Dec 12 06:08:55 | 82.6184 | 0.00185 | 5.7427 | 289.5104 | 157.9478 | 12.65746 | – |
| 2025 Dec 12 18:57 | 2025 Dec 12 06:08:55 | 82.6184 | 0.00185 | 5.7427 | 289.5104 | 157.9478 | 12.65746 | – |
| 2025 Dec 11 18:56 | 2025 Dec 07 06:28:06 | 82.6182 | 0.00186 | 5.9550 | 301.4479 | 157.9478 | 12.65746 | – |