../ dmsp_15_ephemeris_20150911.txt 22-Jun-2023 00:29 109625 dmsp_16_ephemeris_20150911.txt 22-Jun-2023 00:29 109666 dmsp_17_ephemeris_20150911.txt 22-Jun-2023 00:29 109632 dmsp_18_ephemeris_20150911.txt 22-Jun-2023 00:29 109638 dmsp_19_ephemeris_20150911.txt 22-Jun-2023 00:29 109699