../ dmsp_15_ephemeris_20150403.txt 22-Jun-2023 00:27 108250 dmsp_16_ephemeris_20150403.txt 22-Jun-2023 00:27 108221 dmsp_17_ephemeris_20150403.txt 22-Jun-2023 00:27 108240 dmsp_18_ephemeris_20150403.txt 22-Jun-2023 00:27 108132 dmsp_19_ephemeris_20150403.txt 22-Jun-2023 00:27 108300