../ dmsp_15_ephemeris_20130528.txt 22-Jun-2023 16:15 109456 dmsp_16_ephemeris_20130528.txt 22-Jun-2023 16:15 109613 dmsp_17_ephemeris_20130528.txt 22-Jun-2023 16:15 109656 dmsp_18_ephemeris_20130528.txt 22-Jun-2023 16:15 109695