../ dmsp_15_ephemeris_20160804.txt 22-Jun-2023 00:31 109473 dmsp_16_ephemeris_20160804.txt 22-Jun-2023 00:31 109478 dmsp_17_ephemeris_20160804.txt 22-Jun-2023 00:31 109658 dmsp_18_ephemeris_20160804.txt 22-Jun-2023 00:31 109568 dmsp_19_ephemeris_20160804.txt 22-Jun-2023 00:31 109573