../ dmsp_15_ephemeris_20220907.txt 22-Jun-2023 00:52 109713 dmsp_16_ephemeris_20220907.txt 22-Jun-2023 00:52 109809 dmsp_17_ephemeris_20220907.txt 22-Jun-2023 00:52 109651 dmsp_18_ephemeris_20220907.txt 22-Jun-2023 00:52 109565