../ dmsp_15_ephemeris_20240209.txt 09-Apr-2024 22:00 108006 dmsp_16_ephemeris_20240209.txt 09-Apr-2024 22:00 108075 dmsp_17_ephemeris_20240209.txt 09-Apr-2024 22:00 108074 dmsp_18_ephemeris_20240209.txt 09-Apr-2024 22:00 108001