../ dmsp_15_ephemeris_20171126.txt 22-Jun-2023 00:35 109385 dmsp_16_ephemeris_20171126.txt 22-Jun-2023 00:35 109414 dmsp_17_ephemeris_20171126.txt 22-Jun-2023 00:35 109403 dmsp_18_ephemeris_20171126.txt 22-Jun-2023 00:35 109296