../ dmsp_15_ephemeris_20151223.txt 09-Nov-2025 23:22 109439 dmsp_16_ephemeris_20151223.txt 09-Nov-2025 23:22 109350 dmsp_17_ephemeris_20151223.txt 09-Nov-2025 23:22 109165 dmsp_18_ephemeris_20151223.txt 09-Nov-2025 23:22 109272 dmsp_19_ephemeris_20151223.txt 09-Nov-2025 23:22 109297