../ dmsp_15_ephemeris_20180808.txt 22-Jun-2023 00:38 109579 dmsp_16_ephemeris_20180808.txt 22-Jun-2023 00:38 109543 dmsp_17_ephemeris_20180808.txt 22-Jun-2023 00:38 109723 dmsp_18_ephemeris_20180808.txt 22-Jun-2023 00:38 109578