../ dmsp_15_ephemeris_20151101.txt 22-Jun-2023 00:29 109578 dmsp_16_ephemeris_20151101.txt 22-Jun-2023 00:29 109507 dmsp_17_ephemeris_20151101.txt 22-Jun-2023 00:29 109480 dmsp_18_ephemeris_20151101.txt 22-Jun-2023 00:29 109435 dmsp_19_ephemeris_20151101.txt 22-Jun-2023 00:29 109474