../ dmsp_15_ephemeris_20190310.txt 22-Jun-2023 16:30 108165 dmsp_16_ephemeris_20190310.txt 22-Jun-2023 16:30 108290 dmsp_17_ephemeris_20190310.txt 22-Jun-2023 16:30 108041 dmsp_18_ephemeris_20190310.txt 22-Jun-2023 16:30 108018