../ dmsp_15_ephemeris_20190129.txt 22-Jun-2023 00:39 108064 dmsp_16_ephemeris_20190129.txt 22-Jun-2023 00:39 107954 dmsp_17_ephemeris_20190129.txt 22-Jun-2023 00:39 107933 dmsp_18_ephemeris_20190129.txt 22-Jun-2023 00:39 108065