../ dmsp_15_ephemeris_20130515.txt 22-Jun-2023 16:35 109495 dmsp_16_ephemeris_20130515.txt 22-Jun-2023 16:35 109583 dmsp_17_ephemeris_20130515.txt 22-Jun-2023 16:35 109697 dmsp_18_ephemeris_20130515.txt 22-Jun-2023 16:35 109684