../ dmsp_15_ephemeris_20101222.txt 22-Jun-2023 16:08 109221 dmsp_16_ephemeris_20101222.txt 22-Jun-2023 16:08 109401 dmsp_17_ephemeris_20101222.txt 22-Jun-2023 16:08 109326 dmsp_18_ephemeris_20101222.txt 22-Jun-2023 16:08 109324