../ dmsp_15_ephemeris_20130805.txt 22-Jun-2023 00:22 109551 dmsp_16_ephemeris_20130805.txt 22-Jun-2023 00:22 109689 dmsp_17_ephemeris_20130805.txt 22-Jun-2023 00:22 109628 dmsp_18_ephemeris_20130805.txt 22-Jun-2023 00:22 109575