../ dmsp_15_ephemeris_20180203.txt 22-Jun-2023 00:36 108025 dmsp_16_ephemeris_20180203.txt 22-Jun-2023 00:36 107975 dmsp_17_ephemeris_20180203.txt 22-Jun-2023 00:36 107936 dmsp_18_ephemeris_20180203.txt 22-Jun-2023 00:36 107855