../ dmsp_15_ephemeris_20130422.txt 22-Jun-2023 00:22 109524 dmsp_16_ephemeris_20130422.txt 22-Jun-2023 00:22 109611 dmsp_17_ephemeris_20130422.txt 22-Jun-2023 00:22 109854 dmsp_18_ephemeris_20130422.txt 22-Jun-2023 00:22 109682