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 |
| 2026 Mar 23 18:56 | 2026 Mar 20 05:51:08 | 56.4407 | 0.00245 | 0.8607 | 291.2846 | 254.8805 | 1.87753 | – |
| 2026 Mar 22 18:56 | 2026 Mar 20 05:51:08 | 56.4407 | 0.00245 | 0.8607 | 291.2846 | 254.8805 | 1.87753 | – |
| 2026 Mar 21 19:05 | 2026 Mar 20 05:51:08 | 56.4407 | 0.00245 | 0.8607 | 291.2846 | 254.8805 | 1.87753 | – |
| 2026 Mar 20 18:57 | 2026 Mar 20 05:51:08 | 56.4407 | 0.00245 | 0.8607 | 291.2846 | 254.8805 | 1.87753 | – |
| 2026 Mar 19 18:56 | 2026 Mar 13 19:22:04 | 56.4393 | 0.00256 | 0.8752 | 289.9377 | 254.8805 | 1.87753 | – |
| 2026 Mar 18 18:56 | 2026 Mar 13 19:22:04 | 56.4393 | 0.00256 | 0.8752 | 289.9377 | 254.8805 | 1.87753 | – |
| 2026 Mar 17 18:56 | 2026 Mar 13 19:22:04 | 56.4393 | 0.00256 | 0.8752 | 289.9377 | 254.8805 | 1.87753 | – |
| 2026 Mar 16 18:57 | 2026 Mar 13 19:22:04 | 56.4393 | 0.00256 | 0.8752 | 289.9377 | 254.8805 | 1.87753 | – |
| 2026 Mar 15 18:56 | 2026 Mar 13 19:22:04 | 56.4393 | 0.00256 | 0.8752 | 289.9377 | 254.8805 | 1.87753 | – |
| 2026 Mar 14 18:56 | 2026 Mar 05 18:40:27 | 56.4358 | 0.00242 | 0.8933 | 292.2267 | 254.8805 | 1.87753 | – |
| 2026 Mar 13 18:57 | 2026 Mar 05 18:40:27 | 56.4358 | 0.00242 | 0.8933 | 292.2267 | 254.8805 | 1.87753 | – |
| 2026 Mar 12 18:57 | 2026 Mar 05 18:40:27 | 56.4358 | 0.00242 | 0.8933 | 292.2267 | 254.8805 | 1.87753 | – |
| 2026 Mar 11 18:56 | 2026 Mar 05 18:40:27 | 56.4358 | 0.00242 | 0.8933 | 292.2267 | 254.8805 | 1.87753 | – |
| 2026 Mar 10 18:56 | 2026 Mar 05 18:40:27 | 56.4358 | 0.00242 | 0.8933 | 292.2267 | 254.8805 | 1.87753 | – |
| 2026 Mar 09 18:56 | 2026 Feb 28 12:31:23 | 56.4341 | 0.00248 | 0.9051 | 290.5077 | 254.8805 | 1.87753 | – |
| 2026 Mar 08 18:57 | 2026 Feb 28 12:31:23 | 56.4341 | 0.00248 | 0.9051 | 290.5077 | 254.8805 | 1.87753 | – |
| 2026 Mar 07 18:57 | 2026 Feb 28 12:31:23 | 56.4341 | 0.00248 | 0.9051 | 290.5077 | 254.8805 | 1.87753 | – |
| 2026 Mar 06 18:56 | 2026 Feb 28 12:31:23 | 56.4341 | 0.00248 | 0.9051 | 290.5077 | 254.8805 | 1.87753 | – |
| 2026 Mar 05 18:56 | 2026 Feb 28 12:31:23 | 56.4341 | 0.00248 | 0.9051 | 290.5077 | 254.8805 | 1.87753 | – |
| 2026 Mar 04 18:57 | 2026 Feb 28 12:31:23 | 56.4341 | 0.00248 | 0.9051 | 290.5077 | 254.8805 | 1.87753 | – |
| 2026 Mar 03 18:56 | 2026 Feb 23 01:47:46 | 56.4322 | 0.00249 | 0.9174 | 290.1533 | 254.8805 | 1.87753 | – |
| 2026 Mar 02 18:57 | 2026 Feb 23 01:47:46 | 56.4322 | 0.00249 | 0.9174 | 290.1533 | 254.8805 | 1.87753 | – |
| 2026 Mar 01 18:57 | 2026 Feb 23 01:47:46 | 56.4322 | 0.00249 | 0.9174 | 290.1533 | 254.8805 | 1.87753 | – |
| 2026 Feb 28 18:56 | 2026 Feb 23 01:47:46 | 56.4322 | 0.00249 | 0.9174 | 290.1533 | 254.8805 | 1.87753 | – |
| 2026 Feb 27 19:05 | 2026 Feb 23 01:47:46 | 56.4322 | 0.00249 | 0.9174 | 290.1533 | 254.8805 | 1.87753 | – |
| 2026 Feb 26 20:45 | 2026 Feb 23 01:47:46 | 56.4322 | 0.00249 | 0.9174 | 290.1533 | 254.8805 | 1.87753 | – |