../ dmsp_15_ephemeris_20110805.txt 22-Jun-2023 00:18 109559 dmsp_16_ephemeris_20110805.txt 22-Jun-2023 00:18 109746 dmsp_17_ephemeris_20110805.txt 22-Jun-2023 00:18 109698 dmsp_18_ephemeris_20110805.txt 22-Jun-2023 00:18 109705