../ dmsp_15_ephemeris_20130724.txt 22-Jun-2023 00:22 109502 dmsp_16_ephemeris_20130724.txt 22-Jun-2023 00:22 109608 dmsp_17_ephemeris_20130724.txt 22-Jun-2023 00:22 109708 dmsp_18_ephemeris_20130724.txt 22-Jun-2023 00:22 109735