../ dmsp_08_ephemeris_19911219.txt 21-Jun-2023 23:44 109460 dmsp_09_ephemeris_19911219.txt 21-Jun-2023 23:44 109282 dmsp_10_ephemeris_19911219.txt 21-Jun-2023 23:44 109499 dmsp_11_ephemeris_19911219.txt 21-Jun-2023 23:44 109433