../ dmsp_15_ephemeris_20150428.txt 22-Jun-2023 16:19 109604 dmsp_16_ephemeris_20150428.txt 22-Jun-2023 16:19 109597 dmsp_17_ephemeris_20150428.txt 22-Jun-2023 16:19 109740 dmsp_18_ephemeris_20150428.txt 22-Jun-2023 16:19 109631 dmsp_19_ephemeris_20150428.txt 22-Jun-2023 16:19 109701