../ dmsp_15_ephemeris_20130126.txt 22-Jun-2023 00:21 108145 dmsp_16_ephemeris_20130126.txt 22-Jun-2023 00:21 107947 dmsp_17_ephemeris_20130126.txt 22-Jun-2023 00:21 107972 dmsp_18_ephemeris_20130126.txt 22-Jun-2023 00:21 107871