../ dmsp_15_ephemeris_20170128.txt 22-Jun-2023 00:33 108029 dmsp_16_ephemeris_20170128.txt 22-Jun-2023 00:33 107999 dmsp_17_ephemeris_20170128.txt 22-Jun-2023 00:33 107968 dmsp_18_ephemeris_20170128.txt 22-Jun-2023 00:33 107936