../ dmsp_15_ephemeris_20130911.txt 22-Jun-2023 16:35 109579 dmsp_16_ephemeris_20130911.txt 22-Jun-2023 16:35 109623 dmsp_17_ephemeris_20130911.txt 22-Jun-2023 16:35 109751 dmsp_18_ephemeris_20130911.txt 22-Jun-2023 16:35 109627