Orbital elements of NAVSTAR 21
| Launched | 30 September 1990 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 20830 |
| Alternative names |
USA 64 GPS BII-09 SVN 15 |
| 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 Dec 22 18:57 | 2025 Dec 18 08:06:49 | 56.4035 | 0.00244 | 1.0679 | 287.1315 | 57.7467 | 1.87753 | – |
| 2025 Dec 21 18:57 | 2025 Dec 18 08:06:49 | 56.4035 | 0.00244 | 1.0679 | 287.1315 | 57.7467 | 1.87753 | – |
| 2025 Dec 20 18:57 | 2025 Dec 18 08:06:49 | 56.4035 | 0.00244 | 1.0679 | 287.1315 | 57.7467 | 1.87753 | – |
| 2025 Dec 19 18:57 | 2025 Dec 09 12:05:55 | 56.3995 | 0.00243 | 1.0878 | 286.6825 | 57.7467 | 1.87753 | – |
| 2025 Dec 18 18:57 | 2025 Dec 09 12:05:55 | 56.3995 | 0.00243 | 1.0878 | 286.6825 | 57.7467 | 1.87753 | – |
| 2025 Dec 17 18:58 | 2025 Dec 09 12:05:55 | 56.3995 | 0.00243 | 1.0878 | 286.6825 | 57.7467 | 1.87753 | – |
| 2025 Dec 16 18:57 | 2025 Dec 09 12:05:55 | 56.3995 | 0.00243 | 1.0878 | 286.6825 | 57.7467 | 1.87753 | – |
| 2025 Dec 15 18:58 | 2025 Dec 09 12:05:55 | 56.3995 | 0.00243 | 1.0878 | 286.6825 | 57.7467 | 1.87753 | – |
| 2025 Dec 14 18:56 | 2025 Dec 09 12:05:55 | 56.3995 | 0.00243 | 1.0878 | 286.6825 | 57.7467 | 1.87753 | – |
| 2025 Dec 13 18:56 | 2025 Dec 09 12:05:55 | 56.3995 | 0.00243 | 1.0878 | 286.6825 | 57.7467 | 1.87753 | – |
| 2025 Dec 12 18:57 | 2025 Dec 09 12:05:55 | 56.3995 | 0.00243 | 1.0878 | 286.6825 | 57.7467 | 1.87753 | – |
| 2025 Dec 11 18:56 | 2025 Dec 03 17:18:38 | 56.3970 | 0.00239 | 1.1009 | 286.0902 | 57.7467 | 1.87753 | – |
| 2025 Dec 10 18:56 | 2025 Dec 03 17:18:38 | 56.3970 | 0.00239 | 1.1009 | 286.0902 | 57.7467 | 1.87753 | – |
| 2025 Dec 09 18:56 | 2025 Dec 03 17:18:38 | 56.3970 | 0.00239 | 1.1009 | 286.0902 | 57.7467 | 1.87753 | – |
| 2025 Dec 08 18:56 | 2025 Dec 03 17:18:38 | 56.3970 | 0.00239 | 1.1009 | 286.0902 | 57.7467 | 1.87753 | – |
| 2025 Dec 07 18:56 | 2025 Dec 03 17:18:38 | 56.3970 | 0.00239 | 1.1009 | 286.0902 | 57.7467 | 1.87753 | – |
| 2025 Dec 06 18:56 | 2025 Nov 27 15:11:49 | 56.3942 | 0.00238 | 1.1147 | 285.9622 | 57.7467 | 1.87753 | – |
| 2025 Dec 05 18:57 | 2025 Nov 27 15:11:49 | 56.3942 | 0.00238 | 1.1147 | 285.9622 | 57.7467 | 1.87753 | – |
| 2025 Dec 04 18:57 | 2025 Nov 27 15:11:49 | 56.3942 | 0.00238 | 1.1147 | 285.9622 | 57.7467 | 1.87753 | – |
| 2025 Dec 03 18:56 | 2025 Nov 27 15:11:49 | 56.3942 | 0.00238 | 1.1147 | 285.9622 | 57.7467 | 1.87753 | – |
| 2025 Dec 02 18:56 | 2025 Nov 27 15:11:49 | 56.3942 | 0.00238 | 1.1147 | 285.9622 | 57.7467 | 1.87753 | – |
| 2025 Nov 29 18:56 | 2025 Nov 15 11:56:30 | 56.3890 | 0.00234 | 1.1421 | 285.6593 | 57.7467 | 1.87753 | – |
| 2025 Nov 28 18:57 | 2025 Nov 15 11:56:30 | 56.3890 | 0.00234 | 1.1421 | 285.6593 | 57.7467 | 1.87753 | – |
| 2025 Nov 27 18:57 | 2025 Nov 15 11:56:30 | 56.3890 | 0.00234 | 1.1421 | 285.6593 | 57.7467 | 1.87753 | – |
| 2025 Nov 26 18:57 | 2025 Nov 15 11:56:30 | 56.3890 | 0.00234 | 1.1421 | 285.6593 | 57.7467 | 1.87753 | – |
| 2025 Nov 25 18:57 | 2025 Nov 15 11:56:30 | 56.3890 | 0.00234 | 1.1421 | 285.6593 | 57.7467 | 1.87753 | – |