../ dmsp_15_ephemeris_20110210.txt 22-Jun-2023 00:17 108057 dmsp_16_ephemeris_20110210.txt 22-Jun-2023 00:17 108003 dmsp_17_ephemeris_20110210.txt 22-Jun-2023 00:17 108091 dmsp_18_ephemeris_20110210.txt 22-Jun-2023 00:17 108117