../ dmsp_15_ephemeris_20200116.txt 22-Jun-2023 00:42 108195 dmsp_16_ephemeris_20200116.txt 22-Jun-2023 00:42 107845 dmsp_17_ephemeris_20200116.txt 22-Jun-2023 00:42 107940 dmsp_18_ephemeris_20200116.txt 22-Jun-2023 00:42 107987