../ dmsp_15_ephemeris_20220611.txt 22-Jun-2023 00:51 109598 dmsp_16_ephemeris_20220611.txt 22-Jun-2023 00:51 109580 dmsp_17_ephemeris_20220611.txt 22-Jun-2023 00:51 109441 dmsp_18_ephemeris_20220611.txt 22-Jun-2023 00:51 109538