../ dmsp_15_ephemeris_20170623.txt 22-Jun-2023 16:49 109383 dmsp_16_ephemeris_20170623.txt 22-Jun-2023 16:49 109639 dmsp_17_ephemeris_20170623.txt 22-Jun-2023 16:49 109548 dmsp_18_ephemeris_20170623.txt 22-Jun-2023 16:49 109627