../ dmsp_15_ephemeris_20150422.txt 22-Jun-2023 16:41 109551 dmsp_16_ephemeris_20150422.txt 22-Jun-2023 16:41 109515 dmsp_17_ephemeris_20150422.txt 22-Jun-2023 16:41 109715 dmsp_18_ephemeris_20150422.txt 22-Jun-2023 16:41 109614 dmsp_19_ephemeris_20150422.txt 22-Jun-2023 16:41 109747