../ dmsp_15_ephemeris_20150912.txt 22-Jun-2023 00:29 109698 dmsp_16_ephemeris_20150912.txt 22-Jun-2023 00:29 109644 dmsp_17_ephemeris_20150912.txt 22-Jun-2023 00:29 109795 dmsp_18_ephemeris_20150912.txt 22-Jun-2023 00:29 109697 dmsp_19_ephemeris_20150912.txt 22-Jun-2023 00:29 109750