../ dmsp_15_ephemeris_20210124.txt 22-Jun-2023 00:46 108026 dmsp_16_ephemeris_20210124.txt 22-Jun-2023 00:46 107982 dmsp_17_ephemeris_20210124.txt 22-Jun-2023 00:46 107985 dmsp_18_ephemeris_20210124.txt 22-Jun-2023 00:46 108118