Orbital elements of EXPLORER 20
| Launched | 24 August 1964 |
| Flight ended | – |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 870 |
| 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 21 18:57 | 2025 Dec 20 10:54:56 | 79.8979 | 0.00971 | 7.5502 | 33.7874 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 20 18:57 | 2025 Dec 20 10:54:56 | 79.8979 | 0.00971 | 7.5502 | 33.7874 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 19 18:57 | 2025 Dec 12 04:30:03 | 79.8970 | 0.00972 | 8.1499 | 55.4101 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 18 18:57 | 2025 Dec 12 04:30:03 | 79.8970 | 0.00972 | 8.1499 | 55.4101 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 17 18:58 | 2025 Dec 12 04:30:03 | 79.8970 | 0.00972 | 8.1499 | 55.4101 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 16 18:57 | 2025 Dec 12 04:30:03 | 79.8970 | 0.00972 | 8.1499 | 55.4101 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 15 18:58 | 2025 Dec 12 04:30:03 | 79.8970 | 0.00972 | 8.1499 | 55.4101 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 14 18:56 | 2025 Dec 12 04:30:03 | 79.8970 | 0.00972 | 8.1499 | 55.4101 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 13 18:56 | 2025 Dec 12 04:30:03 | 79.8970 | 0.00972 | 8.1499 | 55.4101 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 12 18:57 | 2025 Dec 12 04:30:03 | 79.8970 | 0.00972 | 8.1499 | 55.4101 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 11 18:56 | 2025 Dec 07 03:43:34 | 79.8967 | 0.00973 | 8.5150 | 68.5674 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 10 18:56 | 2025 Dec 07 03:43:34 | 79.8967 | 0.00973 | 8.5150 | 68.5674 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 09 18:56 | 2025 Dec 07 03:43:34 | 79.8967 | 0.00973 | 8.5150 | 68.5674 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 08 18:56 | 2025 Dec 07 03:43:34 | 79.8967 | 0.00973 | 8.5150 | 68.5674 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 07 18:56 | 2025 Dec 07 03:43:34 | 79.8967 | 0.00973 | 8.5150 | 68.5674 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 06 18:56 | 2025 Dec 02 11:34:40 | 79.8962 | 0.00974 | 8.8539 | 80.7827 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 05 18:57 | 2025 Dec 02 11:34:40 | 79.8962 | 0.00974 | 8.8539 | 80.7827 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 04 18:57 | 2025 Dec 02 11:34:40 | 79.8962 | 0.00974 | 8.8539 | 80.7827 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 03 18:56 | 2025 Dec 02 11:34:40 | 79.8962 | 0.00974 | 8.8539 | 80.7827 | 326.9415 | 13.91746 | 7.743 |
| 2025 Dec 02 18:56 | 2025 Dec 02 11:34:40 | 79.8962 | 0.00974 | 8.8539 | 80.7827 | 326.9415 | 13.91746 | 7.743 |
| 2025 Nov 30 18:57 | 2025 Nov 25 10:29:31 | 79.8957 | 0.00974 | 9.3650 | 99.1843 | 326.9415 | 13.91746 | 7.743 |
| 2025 Nov 29 18:56 | 2025 Nov 25 10:29:31 | 79.8957 | 0.00974 | 9.3650 | 99.1843 | 326.9415 | 13.91746 | 7.743 |
| 2025 Nov 28 18:57 | 2025 Nov 25 10:29:31 | 79.8957 | 0.00974 | 9.3650 | 99.1843 | 326.9415 | 13.91746 | 7.743 |
| 2025 Nov 27 18:57 | 2025 Nov 25 10:29:31 | 79.8957 | 0.00974 | 9.3650 | 99.1843 | 326.9415 | 13.91746 | 7.743 |
| 2025 Nov 26 18:57 | 2025 Nov 25 10:29:31 | 79.8957 | 0.00974 | 9.3650 | 99.1843 | 326.9415 | 13.91746 | 7.743 |
| 2025 Nov 25 18:57 | 2025 Nov 25 10:29:31 | 79.8957 | 0.00974 | 9.3650 | 99.1843 | 326.9415 | 13.91746 | 7.743 |
| 2025 Nov 24 18:56 | 2025 Nov 20 06:15:54 | 79.8957 | 0.00974 | 9.7405 | 112.6916 | 326.9415 | 13.91746 | 7.743 |