../ dmsp_15_ephemeris_20130728.txt 22-Jun-2023 16:35 109510 dmsp_16_ephemeris_20130728.txt 22-Jun-2023 16:35 109576 dmsp_17_ephemeris_20130728.txt 22-Jun-2023 16:35 109580 dmsp_18_ephemeris_20130728.txt 22-Jun-2023 16:35 109529