../ dmsp_15_ephemeris_20150123.txt 22-Jun-2023 16:19 108113 dmsp_16_ephemeris_20150123.txt 22-Jun-2023 16:19 107982 dmsp_17_ephemeris_20150123.txt 22-Jun-2023 16:19 107929 dmsp_18_ephemeris_20150123.txt 22-Jun-2023 16:19 107809 dmsp_19_ephemeris_20150123.txt 22-Jun-2023 16:19 107871