../ dmsp_15_ephemeris_20230204.txt 22-Jun-2023 00:54 107972 dmsp_16_ephemeris_20230204.txt 22-Jun-2023 00:54 108016 dmsp_17_ephemeris_20230204.txt 22-Jun-2023 00:54 107966 dmsp_18_ephemeris_20230204.txt 22-Jun-2023 00:54 108102