../ dmsp_15_ephemeris_20180202.txt 22-Jun-2023 00:36 108077 dmsp_16_ephemeris_20180202.txt 22-Jun-2023 00:36 108057 dmsp_17_ephemeris_20180202.txt 22-Jun-2023 00:36 108036 dmsp_18_ephemeris_20180202.txt 22-Jun-2023 00:36 107975