../ dmsp_15_ephemeris_20150415.txt 22-Jun-2023 00:27 109600 dmsp_16_ephemeris_20150415.txt 22-Jun-2023 00:27 109598 dmsp_17_ephemeris_20150415.txt 22-Jun-2023 00:27 109665 dmsp_18_ephemeris_20150415.txt 22-Jun-2023 00:27 109619 dmsp_19_ephemeris_20150415.txt 22-Jun-2023 00:27 109681