../ dmsp_15_ephemeris_20120823.txt 22-Jun-2023 00:20 109552 dmsp_16_ephemeris_20120823.txt 22-Jun-2023 00:20 109782 dmsp_17_ephemeris_20120823.txt 22-Jun-2023 00:20 109759 dmsp_18_ephemeris_20120823.txt 22-Jun-2023 00:20 109709