../ dmsp_15_ephemeris_20181020.txt 22-Jun-2023 16:29 109649 dmsp_16_ephemeris_20181020.txt 22-Jun-2023 16:29 109665 dmsp_17_ephemeris_20181020.txt 22-Jun-2023 16:29 109564 dmsp_18_ephemeris_20181020.txt 22-Jun-2023 16:29 109380