../ dmsp_15_ephemeris_20190203.txt 22-Jun-2023 16:55 108045 dmsp_16_ephemeris_20190203.txt 22-Jun-2023 16:55 107996 dmsp_17_ephemeris_20190203.txt 22-Jun-2023 16:55 107967 dmsp_18_ephemeris_20190203.txt 22-Jun-2023 16:55 107938