../ dmsp_15_ephemeris_20191126.txt 22-Jun-2023 00:42 109424 dmsp_16_ephemeris_20191126.txt 22-Jun-2023 00:42 109444 dmsp_17_ephemeris_20191126.txt 22-Jun-2023 00:42 109326 dmsp_18_ephemeris_20191126.txt 22-Jun-2023 00:42 109403