../ dmsp_15_ephemeris_20220218.txt 22-Jun-2023 16:31 108153 dmsp_16_ephemeris_20220218.txt 22-Jun-2023 16:31 108046 dmsp_17_ephemeris_20220218.txt 22-Jun-2023 16:31 108004 dmsp_18_ephemeris_20220218.txt 22-Jun-2023 16:31 108012