../ dmsp_15_ephemeris_20110119.txt 22-Jun-2023 00:16 108016 dmsp_16_ephemeris_20110119.txt 22-Jun-2023 00:16 107949 dmsp_17_ephemeris_20110119.txt 22-Jun-2023 00:16 108104 dmsp_18_ephemeris_20110119.txt 22-Jun-2023 00:16 108022