../ dmsp_15_ephemeris_20161207.txt 22-Jun-2023 00:33 109440 dmsp_16_ephemeris_20161207.txt 22-Jun-2023 00:33 109459 dmsp_17_ephemeris_20161207.txt 22-Jun-2023 00:33 109162 dmsp_18_ephemeris_20161207.txt 22-Jun-2023 00:33 109275