../ dmsp_15_ephemeris_20140312.txt 22-Jun-2023 16:16 108047 dmsp_16_ephemeris_20140312.txt 22-Jun-2023 16:16 108142 dmsp_17_ephemeris_20140312.txt 22-Jun-2023 16:16 108180 dmsp_18_ephemeris_20140312.txt 22-Jun-2023 16:16 108134