../ dmsp_15_ephemeris_20130118.txt 22-Jun-2023 00:21 107732 dmsp_16_ephemeris_20130118.txt 22-Jun-2023 00:21 107956 dmsp_17_ephemeris_20130118.txt 22-Jun-2023 00:21 107970 dmsp_18_ephemeris_20130118.txt 22-Jun-2023 00:21 107914