../ dmsp_15_ephemeris_20101202.txt 22-Jun-2023 00:16 109335 dmsp_16_ephemeris_20101202.txt 22-Jun-2023 00:16 109297 dmsp_17_ephemeris_20101202.txt 22-Jun-2023 00:16 109267 dmsp_18_ephemeris_20101202.txt 22-Jun-2023 00:16 109393