../ dmsp_15_ephemeris_20111028.txt 22-Jun-2023 16:12 109591 dmsp_16_ephemeris_20111028.txt 22-Jun-2023 16:12 109470 dmsp_17_ephemeris_20111028.txt 22-Jun-2023 16:12 109531 dmsp_18_ephemeris_20111028.txt 22-Jun-2023 16:12 109598