../ dmsp_15_ephemeris_20150310.txt 22-Jun-2023 00:27 108139 dmsp_16_ephemeris_20150310.txt 22-Jun-2023 00:27 108144 dmsp_17_ephemeris_20150310.txt 22-Jun-2023 00:27 108109 dmsp_18_ephemeris_20150310.txt 22-Jun-2023 00:27 108244 dmsp_19_ephemeris_20150310.txt 22-Jun-2023 00:27 108031