Orbital elements of NAVSTAR 18
| Launched | 23 January 1990 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 20452 |
| Alternative names |
USA 50 GPS BII-06 SVN 18 |
| 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 05:42:24 | 54.8012 | 0.00138 | 9.5514 | 278.4825 | 264.9840 | 1.89598 | – |
| 2025 Sep 12 17:57 | 2025 Aug 29 08:34:11 | 54.7991 | 0.00140 | 9.5907 | 278.3222 | 264.9840 | 1.89598 | – |
| 2025 Sep 11 17:57 | 2025 Aug 29 08:34:11 | 54.7991 | 0.00140 | 9.5907 | 278.3222 | 264.9840 | 1.89598 | – |
| 2025 Sep 10 17:56 | 2025 Aug 29 08:34:11 | 54.7991 | 0.00140 | 9.5907 | 278.3222 | 264.9840 | 1.89598 | – |
| 2025 Sep 08 17:57 | 2025 Aug 29 08:34:11 | 54.7991 | 0.00140 | 9.5907 | 278.3222 | 264.9840 | 1.89598 | – |
| 2025 Sep 07 17:56 | 2025 Aug 29 08:34:11 | 54.7991 | 0.00140 | 9.5907 | 278.3222 | 264.9840 | 1.89598 | – |
| 2025 Sep 06 20:41 | 2025 Aug 29 08:34:11 | 54.7991 | 0.00140 | 9.5907 | 278.3222 | 264.9840 | 1.89598 | – |
| 2025 Sep 03 17:57 | 2025 Aug 29 08:34:11 | 54.7991 | 0.00140 | 9.5907 | 278.3222 | 264.9840 | 1.89598 | – |
| 2025 Sep 02 17:56 | 2025 Aug 26 17:18:15 | 54.7988 | 0.00141 | 9.5969 | 278.3577 | 264.9840 | 1.89598 | – |
| 2025 Sep 01 17:56 | 2025 Aug 26 17:18:15 | 54.7988 | 0.00141 | 9.5969 | 278.3577 | 264.9840 | 1.89598 | – |
| 2025 Aug 31 17:56 | 2025 Aug 26 17:18:15 | 54.7988 | 0.00141 | 9.5969 | 278.3577 | 264.9840 | 1.89598 | – |
| 2025 Aug 30 17:56 | 2025 Aug 26 17:18:15 | 54.7988 | 0.00141 | 9.5969 | 278.3577 | 264.9840 | 1.89598 | – |
| 2025 Aug 29 17:56 | 2025 Aug 26 17:18:15 | 54.7988 | 0.00141 | 9.5969 | 278.3577 | 264.9840 | 1.89598 | – |
| 2025 Aug 28 17:57 | 2025 Aug 26 17:18:15 | 54.7988 | 0.00141 | 9.5969 | 278.3577 | 264.9840 | 1.89598 | – |
| 2025 Aug 27 17:56 | 2025 Aug 22 11:54:31 | 54.7983 | 0.00140 | 9.6067 | 278.4299 | 264.9840 | 1.89598 | – |
| 2025 Aug 26 17:56 | 2025 Aug 22 11:54:31 | 54.7983 | 0.00140 | 9.6067 | 278.4299 | 264.9840 | 1.89598 | – |
| 2025 Aug 25 17:56 | 2025 Aug 22 11:54:31 | 54.7983 | 0.00140 | 9.6067 | 278.4299 | 264.9840 | 1.89598 | – |
| 2025 Aug 24 17:56 | 2025 Aug 22 11:54:31 | 54.7983 | 0.00140 | 9.6067 | 278.4299 | 264.9840 | 1.89598 | – |
| 2025 Aug 23 17:56 | 2025 Aug 22 11:54:31 | 54.7983 | 0.00140 | 9.6067 | 278.4299 | 264.9840 | 1.89598 | – |
| 2025 Aug 22 17:56 | 2025 Aug 17 17:43:12 | 54.7978 | 0.00143 | 9.6178 | 278.3796 | 264.9840 | 1.89598 | – |
| 2025 Aug 20 17:56 | 2025 Aug 17 17:43:12 | 54.7978 | 0.00143 | 9.6178 | 278.3796 | 264.9840 | 1.89598 | – |