../ dmsp_15_ephemeris_20170302.txt 22-Jun-2023 16:48 108112 dmsp_16_ephemeris_20170302.txt 22-Jun-2023 16:48 108087 dmsp_17_ephemeris_20170302.txt 22-Jun-2023 16:48 108136 dmsp_18_ephemeris_20170302.txt 22-Jun-2023 16:48 108057