../ dmsp_15_ephemeris_20211226.txt 22-Jun-2023 17:05 109299 dmsp_16_ephemeris_20211226.txt 22-Jun-2023 17:05 109410 dmsp_17_ephemeris_20211226.txt 22-Jun-2023 17:05 109335 dmsp_18_ephemeris_20211226.txt 22-Jun-2023 17:05 109315