../ dmsp_15_ephemeris_20150904.txt 22-Jun-2023 00:29 109469 dmsp_16_ephemeris_20150904.txt 22-Jun-2023 00:29 109694 dmsp_17_ephemeris_20150904.txt 22-Jun-2023 00:29 109837 dmsp_18_ephemeris_20150904.txt 22-Jun-2023 00:29 109669 dmsp_19_ephemeris_20150904.txt 22-Jun-2023 00:29 109610