../ dmsp_15_ephemeris_20130323.txt 22-Jun-2023 00:21 108114 dmsp_16_ephemeris_20130323.txt 22-Jun-2023 00:21 108132 dmsp_17_ephemeris_20130323.txt 22-Jun-2023 00:21 108305 dmsp_18_ephemeris_20130323.txt 22-Jun-2023 00:21 108320