../ dmsp_15_ephemeris_20130727.txt 22-Jun-2023 00:22 109564 dmsp_16_ephemeris_20130727.txt 22-Jun-2023 00:22 109616 dmsp_17_ephemeris_20130727.txt 22-Jun-2023 00:22 109725 dmsp_18_ephemeris_20130727.txt 22-Jun-2023 00:22 109588