../ dmsp_15_ephemeris_20171013.txt 22-Jun-2023 00:35 109665 dmsp_16_ephemeris_20171013.txt 22-Jun-2023 00:35 109614 dmsp_17_ephemeris_20171013.txt 22-Jun-2023 00:35 109563 dmsp_18_ephemeris_20171013.txt 22-Jun-2023 00:35 109556