../ dmsp_15_ephemeris_20150417.txt 22-Jun-2023 00:27 109513 dmsp_16_ephemeris_20150417.txt 22-Jun-2023 00:27 109572 dmsp_17_ephemeris_20150417.txt 22-Jun-2023 00:27 109827 dmsp_18_ephemeris_20150417.txt 22-Jun-2023 00:27 109704 dmsp_19_ephemeris_20150417.txt 22-Jun-2023 00:27 109727