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 |
| 2025 May 10 17:56 | 2025 May 09 06:39:22 | 82.6202 | 0.00205 | 14.9795 | 67.1872 | 347.0195 | 12.65737 | – |
| 2025 May 09 17:57 | 2025 May 09 06:39:22 | 82.6202 | 0.00205 | 14.9795 | 67.1872 | 347.0195 | 12.65737 | – |
| 2025 May 08 17:56 | 2025 May 03 13:50:20 | 82.6202 | 0.00206 | 15.2221 | 79.5208 | 347.0195 | 12.65737 | – |
| 2025 May 07 17:56 | 2025 May 03 13:50:20 | 82.6202 | 0.00206 | 15.2221 | 79.5208 | 347.0195 | 12.65737 | – |
| 2025 May 06 17:57 | 2025 May 03 13:50:20 | 82.6202 | 0.00206 | 15.2221 | 79.5208 | 347.0195 | 12.65737 | – |
| 2025 May 05 17:56 | 2025 May 03 13:50:20 | 82.6202 | 0.00206 | 15.2221 | 79.5208 | 347.0195 | 12.65737 | – |
| 2025 May 04 17:57 | 2025 May 03 13:50:20 | 82.6202 | 0.00206 | 15.2221 | 79.5208 | 347.0195 | 12.65737 | – |
| 2025 May 03 17:57 | 2025 May 03 13:50:20 | 82.6202 | 0.00206 | 15.2221 | 79.5208 | 347.0195 | 12.65737 | – |
| 2025 May 01 17:56 | 2025 Apr 22 10:39:00 | 82.6188 | 0.00206 | 15.6960 | 103.5026 | 347.0195 | 12.65737 | – |
| 2025 Apr 30 17:56 | 2025 Apr 22 10:39:00 | 82.6188 | 0.00206 | 15.6960 | 103.5026 | 347.0195 | 12.65737 | – |
| 2025 Apr 29 17:57 | 2025 Apr 22 10:39:00 | 82.6188 | 0.00206 | 15.6960 | 103.5026 | 347.0195 | 12.65737 | – |
| 2025 Apr 27 17:56 | 2025 Apr 22 10:39:00 | 82.6188 | 0.00206 | 15.6960 | 103.5026 | 347.0195 | 12.65737 | – |
| 2025 Apr 26 17:57 | 2025 Apr 22 10:39:00 | 82.6188 | 0.00206 | 15.6960 | 103.5026 | 347.0195 | 12.65737 | – |
| 2025 Apr 25 17:56 | 2025 Apr 22 10:39:00 | 82.6188 | 0.00206 | 15.6960 | 103.5026 | 347.0195 | 12.65737 | – |
| 2025 Apr 24 17:56 | 2025 Apr 22 10:39:00 | 82.6188 | 0.00206 | 15.6960 | 103.5026 | 347.0195 | 12.65737 | – |
| 2025 Apr 23 17:57 | 2025 Apr 22 10:39:00 | 82.6188 | 0.00206 | 15.6960 | 103.5026 | 347.0195 | 12.65737 | – |
| 2025 Apr 22 17:56 | 2025 Apr 22 10:39:00 | 82.6188 | 0.00206 | 15.6960 | 103.5026 | 347.0195 | 12.65737 | – |
| 2025 Apr 21 17:57 | 2025 Apr 15 21:27:31 | 82.6175 | 0.00206 | 15.9749 | 117.6543 | 347.0195 | 12.65737 | – |
| 2025 Apr 20 17:56 | 2025 Apr 15 21:27:31 | 82.6175 | 0.00206 | 15.9749 | 117.6543 | 347.0195 | 12.65737 | – |
| 2025 Apr 19 17:56 | 2025 Apr 15 21:27:31 | 82.6175 | 0.00206 | 15.9749 | 117.6543 | 347.0195 | 12.65737 | – |
| 2025 Apr 18 17:57 | 2025 Apr 15 21:27:31 | 82.6175 | 0.00206 | 15.9749 | 117.6543 | 347.0195 | 12.65737 | – |
| 2025 Apr 17 17:56 | 2025 Apr 15 21:27:31 | 82.6175 | 0.00206 | 15.9749 | 117.6543 | 347.0195 | 12.65737 | – |
| 2025 Apr 16 17:57 | 2025 Apr 15 21:27:31 | 82.6175 | 0.00206 | 15.9749 | 117.6543 | 347.0195 | 12.65737 | – |
| 2025 Apr 15 17:56 | 2025 Apr 11 03:55:47 | 82.6167 | 0.00205 | 16.1763 | 127.9100 | 347.0195 | 12.65737 | – |
| 2025 Apr 14 17:56 | 2025 Apr 11 03:55:47 | 82.6167 | 0.00205 | 16.1763 | 127.9100 | 347.0195 | 12.65737 | – |