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 Jul 21 17:57 | 2026 Jul 20 23:39:15 | 51.6256 | 0.00024 | 7.8989 | 351.8114 | 8.2842 | 15.64889 | – |
| 2026 Jul 20 17:57 | 2026 Jul 20 00:39:51 | 51.6257 | 0.00024 | 8.2225 | 349.6514 | 8.2842 | 15.64889 | – |
| 2026 Jul 19 19:06 | 2026 Jul 19 12:24:09 | 51.6259 | 0.00024 | 8.3951 | 348.3121 | 8.2842 | 15.64889 | – |
| 2026 Jul 19 17:57 | 2026 Jul 19 04:44:20 | 51.6260 | 0.00025 | 8.5029 | 347.8752 | 8.2842 | 15.64889 | – |
| 2026 Jul 18 17:57 | 2026 Jul 18 07:16:50 | 51.6261 | 0.00025 | 8.8050 | 344.9305 | 8.2842 | 15.64889 | – |
| 2026 Jul 17 17:57 | 2026 Jul 16 23:05:29 | 51.6257 | 0.00024 | 9.2579 | 339.0114 | 8.2842 | 15.64889 | – |
| 2026 Jul 16 17:56 | 2026 Jul 16 06:13:47 | 51.6257 | 0.00025 | 9.4951 | 338.4110 | 8.2842 | 15.64889 | – |
| 2026 Jul 15 17:57 | 2026 Jul 15 02:38:14 | 51.6254 | 0.00026 | 9.8834 | 335.6560 | 8.2842 | 15.64889 | – |
| 2026 Jul 14 17:56 | 2026 Jul 14 03:38:33 | 51.6250 | 0.00025 | 10.2068 | 332.8598 | 8.2842 | 15.64889 | – |
| 2026 Jul 13 17:56 | 2026 Jul 13 12:18:45 | 51.6247 | 0.00025 | 10.4225 | 330.1562 | 8.2842 | 15.64889 | – |
| 2026 Jul 12 17:56 | 2026 Jul 12 10:15:01 | 51.6240 | 0.00025 | 10.7891 | 326.0909 | 8.2842 | 15.64889 | – |
| 2026 Jul 11 17:56 | 2026 Jul 11 12:47:11 | 51.6239 | 0.00025 | 11.0910 | 323.4249 | 8.2842 | 15.64889 | – |
| 2026 Jul 09 17:56 | 2026 Jul 08 06:35:27 | 51.6251 | 0.00026 | 12.1906 | 313.1934 | 8.2842 | 15.64889 | – |
| 2026 Jul 08 17:56 | 2026 Jul 08 06:35:27 | 51.6251 | 0.00026 | 12.1906 | 313.1934 | 8.2842 | 15.64889 | – |
| 2026 Jul 07 17:56 | 2026 Jul 07 12:11:25 | 51.6250 | 0.00027 | 12.4494 | 311.9118 | 8.2842 | 15.64889 | – |
| 2026 Jul 06 17:57 | 2026 Jul 05 14:11:11 | 51.6248 | 0.00026 | 13.0961 | 302.0647 | 8.2842 | 15.64889 | – |
| 2026 Jul 05 17:56 | 2026 Jul 04 15:10:59 | 51.6248 | 0.00026 | 13.4195 | 298.8664 | 8.2842 | 15.64889 | – |
| 2026 Jul 04 17:56 | 2026 Jul 04 01:22:48 | 51.6246 | 0.00026 | 13.6134 | 295.1455 | 8.2842 | 15.64889 | – |
| 2026 Jul 03 17:57 | 2026 Jul 02 18:42:20 | 51.6244 | 0.00027 | 14.0445 | 290.3088 | 8.2842 | 15.64889 | – |
| 2026 Jul 02 17:56 | 2026 Jul 02 06:26:07 | 51.6244 | 0.00027 | 14.2170 | 288.5178 | 8.2842 | 15.64889 | – |
| 2026 Jul 01 17:56 | 2026 Jun 30 17:37:20 | 51.6243 | 0.00027 | 14.7341 | 280.5781 | 8.2842 | 15.64889 | – |
| 2026 Jun 30 17:56 | 2026 Jun 29 09:24:31 | 51.6249 | 0.00027 | 15.1866 | 273.7787 | 8.2842 | 15.64889 | – |
| 2026 Jun 29 17:57 | 2026 Jun 29 09:24:31 | 51.6249 | 0.00027 | 15.1866 | 273.7787 | 8.2842 | 15.64889 | – |
| 2026 Jun 28 17:56 | 2026 Jun 27 20:35:27 | 51.6254 | 0.00027 | 15.7037 | 266.3746 | 8.2842 | 15.64889 | – |
| 2026 Jun 27 17:55 | 2026 Jun 27 09:51:06 | 51.6259 | 0.00027 | 15.8546 | 264.1463 | 8.2842 | 15.64889 | – |
| 2026 Jun 26 17:56 | 2026 Jun 25 19:29:47 | 51.6262 | 0.00028 | 16.3931 | 255.6688 | 8.2842 | 15.64889 | – |
| 2026 Jun 25 17:56 | 2026 Jun 24 11:16:30 | 51.6257 | 0.00029 | 16.8454 | 249.5701 | 8.2842 | 15.64889 | – |
| 2026 Jun 24 17:55 | 2026 Jun 23 12:15:31 | 51.6254 | 0.00029 | 17.1685 | 242.9616 | 8.2842 | 15.64889 | – |