../ dmsp_15_ephemeris_20130130.txt 22-Jun-2023 00:21 107979 dmsp_16_ephemeris_20130130.txt 22-Jun-2023 00:21 107946 dmsp_17_ephemeris_20130130.txt 22-Jun-2023 00:21 108000 dmsp_18_ephemeris_20130130.txt 22-Jun-2023 00:21 108002