../ dmsp_08_ephemeris_19911217.txt 21-Jun-2023 23:44 109416 dmsp_09_ephemeris_19911217.txt 21-Jun-2023 23:44 109355 dmsp_10_ephemeris_19911217.txt 21-Jun-2023 23:44 109520 dmsp_11_ephemeris_19911217.txt 21-Jun-2023 23:44 109471