Orbital elements of DUPLEX
| Launched | 19 November 1998 |
| Flight ended | – |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | United States |
| NORAD ID | 66906 |
| 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 Mar 06 18:56 | 2026 Mar 06 10:32:36 | 51.6289 | 0.00022 | 5.7136 | 98.7594 | 261.3644 | 15.55966 | – |
| 2026 Mar 05 18:56 | 2026 Mar 05 11:25:18 | 51.6284 | 0.00021 | 6.0348 | 94.8797 | 261.3644 | 15.55966 | – |
| 2026 Mar 04 18:57 | 2026 Mar 04 09:12:56 | 51.6284 | 0.00021 | 6.3988 | 91.8511 | 261.3644 | 15.55966 | – |
| 2026 Mar 03 18:56 | 2026 Mar 03 08:33:00 | 51.6288 | 0.00020 | 6.7413 | 89.0398 | 261.3644 | 15.55966 | – |
| 2026 Mar 02 18:57 | 2026 Mar 02 12:30:29 | 51.6288 | 0.00020 | 7.0195 | 86.7096 | 261.3644 | 15.55966 | – |
| 2026 Mar 01 18:57 | 2026 Mar 01 10:17:55 | 51.6290 | 0.00020 | 7.3834 | 85.3418 | 261.3644 | 15.55966 | – |
| 2026 Feb 28 18:56 | 2026 Feb 28 09:37:46 | 51.6291 | 0.00019 | 7.7258 | 83.2309 | 261.3644 | 15.55966 | – |
| 2026 Feb 27 19:05 | 2026 Feb 27 04:20:01 | 51.6292 | 0.00018 | 8.1324 | 82.6224 | 261.3644 | 15.55966 | – |
| 2026 Feb 26 20:45 | 2026 Feb 26 09:49:49 | 51.6288 | 0.00019 | 8.3892 | 78.2419 | 261.3644 | 15.55966 | – |