../ dmsp_15_ephemeris_20161222.txt 22-Jun-2023 00:33 109393 dmsp_16_ephemeris_20161222.txt 22-Jun-2023 00:33 109389 dmsp_17_ephemeris_20161222.txt 22-Jun-2023 00:33 109277 dmsp_18_ephemeris_20161222.txt 22-Jun-2023 00:33 109313