../ dmsp_15_ephemeris_20110322.txt 22-Jun-2023 16:11 108171 dmsp_16_ephemeris_20110322.txt 22-Jun-2023 16:11 108177 dmsp_17_ephemeris_20110322.txt 22-Jun-2023 16:11 108269 dmsp_18_ephemeris_20110322.txt 22-Jun-2023 16:11 108293