../ dmsp_15_ephemeris_20220310.txt 22-Jun-2023 16:31 108274 dmsp_16_ephemeris_20220310.txt 22-Jun-2023 16:31 108167 dmsp_17_ephemeris_20220310.txt 22-Jun-2023 16:31 108132 dmsp_18_ephemeris_20220310.txt 22-Jun-2023 16:31 108179