../ dmsp_15_ephemeris_20120119.txt 22-Jun-2023 00:19 108007 dmsp_16_ephemeris_20120119.txt 22-Jun-2023 00:19 107758 dmsp_17_ephemeris_20120119.txt 22-Jun-2023 00:19 107999 dmsp_18_ephemeris_20120119.txt 22-Jun-2023 00:19 107955