../ dmsp_15_ephemeris_20240417.txt 02-Jun-2024 06:00 243 dmsp_16_ephemeris_20240417.txt 02-Jun-2024 06:00 243 dmsp_17_ephemeris_20240417.txt 02-Jun-2024 06:00 243 dmsp_18_ephemeris_20240417.txt 02-Jun-2024 06:00 243