../ dmsp_15_ephemeris_20130622.txt 22-Jun-2023 00:22 109408 dmsp_16_ephemeris_20130622.txt 22-Jun-2023 00:22 109535 dmsp_17_ephemeris_20130622.txt 22-Jun-2023 00:22 109648 dmsp_18_ephemeris_20130622.txt 22-Jun-2023 00:22 109710