../ dmsp_15_ephemeris_20220213.txt 22-Jun-2023 16:31 108101 dmsp_16_ephemeris_20220213.txt 22-Jun-2023 16:31 108153 dmsp_17_ephemeris_20220213.txt 22-Jun-2023 16:31 108050 dmsp_18_ephemeris_20220213.txt 22-Jun-2023 16:31 108144