../ dmsp_15_ephemeris_20130722.txt 22-Jun-2023 00:22 109601 dmsp_16_ephemeris_20130722.txt 22-Jun-2023 00:22 109638 dmsp_17_ephemeris_20130722.txt 22-Jun-2023 00:22 109722 dmsp_18_ephemeris_20130722.txt 22-Jun-2023 00:22 109676