../ dmsp_08_ephemeris_19911121.txt 21-Jun-2023 23:44 109513 dmsp_09_ephemeris_19911121.txt 21-Jun-2023 23:44 109341 dmsp_10_ephemeris_19911121.txt 21-Jun-2023 23:44 109526 dmsp_11_ephemeris_19911121.txt 21-Jun-2023 23:44 243