../ dmsp_15_ephemeris_20130817.txt 22-Jun-2023 16:35 109562 dmsp_16_ephemeris_20130817.txt 22-Jun-2023 16:35 109491 dmsp_17_ephemeris_20130817.txt 22-Jun-2023 16:35 109781 dmsp_18_ephemeris_20130817.txt 22-Jun-2023 16:35 109589