../ dmsp_15_ephemeris_20101220.txt 22-Jun-2023 16:07 109269 dmsp_16_ephemeris_20101220.txt 22-Jun-2023 16:07 109326 dmsp_17_ephemeris_20101220.txt 22-Jun-2023 16:07 109345 dmsp_18_ephemeris_20101220.txt 22-Jun-2023 16:07 109500