../ dmsp_15_ephemeris_20150903.txt 22-Jun-2023 16:21 109665 dmsp_16_ephemeris_20150903.txt 22-Jun-2023 16:21 109658 dmsp_17_ephemeris_20150903.txt 22-Jun-2023 16:21 109634 dmsp_18_ephemeris_20150903.txt 22-Jun-2023 16:21 109718 dmsp_19_ephemeris_20150903.txt 22-Jun-2023 16:21 109828