../ dmsp_15_ephemeris_20140918.txt 22-Jun-2023 16:39 109638 dmsp_16_ephemeris_20140918.txt 22-Jun-2023 16:39 109600 dmsp_17_ephemeris_20140918.txt 22-Jun-2023 16:39 109683 dmsp_18_ephemeris_20140918.txt 22-Jun-2023 16:39 109529 dmsp_19_ephemeris_20140918.txt 22-Jun-2023 16:39 109678