../ dmsp_15_ephemeris_20150729.txt 22-Jun-2023 00:28 109420 dmsp_16_ephemeris_20150729.txt 22-Jun-2023 00:28 109614 dmsp_17_ephemeris_20150729.txt 22-Jun-2023 00:28 109692 dmsp_18_ephemeris_20150729.txt 22-Jun-2023 00:28 109647 dmsp_19_ephemeris_20150729.txt 22-Jun-2023 00:28 109677