../ dmsp_15_ephemeris_20150427.txt 22-Jun-2023 16:16 109644 dmsp_16_ephemeris_20150427.txt 22-Jun-2023 16:16 109590 dmsp_17_ephemeris_20150427.txt 22-Jun-2023 16:16 109728 dmsp_18_ephemeris_20150427.txt 22-Jun-2023 16:16 109584 dmsp_19_ephemeris_20150427.txt 22-Jun-2023 16:16 109715