Orbital elements of GPS 21
| Launched | 30 March 2003 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 27704 |
| Alternative names |
USA 168 NAVSTAR 52 GPS BIIR-09 SVN 45 PRN 21 SLOT D3 |
| 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 Sep 15 17:56 | 2025 Sep 15 05:13:26 | 54.9660 | 0.00029 | 22.3719 | 285.8689 | 139.8182 | 1.94743 | – |
| 2025 Sep 14 17:56 | 2025 Sep 14 02:38:36 | 54.9666 | 0.00029 | 22.3747 | 285.8489 | 139.8182 | 1.94743 | – |
| 2025 Sep 12 17:57 | 2025 Sep 11 12:21:47 | 54.9679 | 0.00028 | 22.3812 | 286.4257 | 139.8182 | 1.94743 | – |
| 2025 Sep 11 17:57 | 2025 Sep 09 11:45:56 | 54.9690 | 0.00027 | 22.3864 | 286.9271 | 139.8182 | 1.94743 | – |
| 2025 Sep 10 17:56 | 2025 Sep 03 20:17:21 | 54.9719 | 0.00025 | 22.4006 | 287.4546 | 139.8182 | 1.94743 | – |
| 2025 Sep 08 17:57 | 2025 Sep 03 20:17:21 | 54.9719 | 0.00025 | 22.4006 | 287.4546 | 139.8182 | 1.94743 | – |
| 2025 Sep 07 17:56 | 2025 Sep 03 20:17:21 | 54.9719 | 0.00025 | 22.4006 | 287.4546 | 139.8182 | 1.94743 | – |
| 2025 Sep 06 20:41 | 2025 Sep 03 20:17:21 | 54.9719 | 0.00025 | 22.4006 | 287.4546 | 139.8182 | 1.94743 | – |
| 2025 Sep 03 17:57 | 2025 Sep 02 07:26:36 | 54.9727 | 0.00025 | 22.4045 | 287.8274 | 139.8182 | 1.94743 | – |
| 2025 Sep 02 17:56 | 2025 Sep 01 06:32:28 | 54.9732 | 0.00024 | 22.4071 | 288.1709 | 139.8182 | 1.94743 | – |
| 2025 Sep 01 17:56 | 2025 Sep 01 06:32:28 | 54.9732 | 0.00024 | 22.4071 | 288.1709 | 139.8182 | 1.94743 | – |
| 2025 Aug 31 17:56 | 2025 Aug 31 05:52:31 | 54.9737 | 0.00024 | 22.4097 | 288.5918 | 139.8182 | 1.94743 | – |
| 2025 Aug 30 17:56 | 2025 Aug 28 14:57:13 | 54.9751 | 0.00023 | 22.4164 | 289.8001 | 139.8182 | 1.94743 | – |
| 2025 Aug 29 17:56 | 2025 Aug 28 14:57:13 | 54.9751 | 0.00023 | 22.4164 | 289.8001 | 139.8182 | 1.94743 | – |
| 2025 Aug 28 17:57 | 2025 Aug 27 02:55:29 | 54.9758 | 0.00023 | 22.4201 | 290.5328 | 139.8182 | 1.94743 | – |
| 2025 Aug 27 17:56 | 2025 Aug 27 02:55:29 | 54.9758 | 0.00023 | 22.4201 | 290.5328 | 139.8182 | 1.94743 | – |
| 2025 Aug 26 17:56 | 2025 Aug 25 16:02:32 | 54.9765 | 0.00022 | 22.4238 | 291.2277 | 139.8182 | 1.94743 | – |
| 2025 Aug 25 17:56 | 2025 Aug 21 11:55:20 | 54.9786 | 0.00021 | 22.4343 | 292.7809 | 139.8182 | 1.94743 | – |
| 2025 Aug 24 17:56 | 2025 Aug 21 11:55:20 | 54.9786 | 0.00021 | 22.4343 | 292.7809 | 139.8182 | 1.94743 | – |
| 2025 Aug 23 17:56 | 2025 Aug 21 11:55:20 | 54.9786 | 0.00021 | 22.4343 | 292.7809 | 139.8182 | 1.94743 | – |
| 2025 Aug 22 17:56 | 2025 Aug 20 16:39:28 | 54.9790 | 0.00021 | 22.4364 | 292.9614 | 139.8182 | 1.94743 | – |
| 2025 Aug 20 17:56 | 2025 Aug 18 12:09:36 | 54.9802 | 0.00020 | 22.4419 | 293.7898 | 139.8182 | 1.94743 | – |
| 2025 Aug 19 17:56 | 2025 Aug 18 12:09:36 | 54.9802 | 0.00020 | 22.4419 | 293.7898 | 139.8182 | 1.94743 | – |