../ dmsp_15_ephemeris_20130127.txt 22-Jun-2023 00:21 107974 dmsp_16_ephemeris_20130127.txt 22-Jun-2023 00:21 108058 dmsp_17_ephemeris_20130127.txt 22-Jun-2023 00:21 108052 dmsp_18_ephemeris_20130127.txt 22-Jun-2023 00:21 107896