../ dmsp_08_ephemeris_19911208.txt 21-Jun-2023 23:44 109404 dmsp_09_ephemeris_19911208.txt 21-Jun-2023 23:44 109218 dmsp_10_ephemeris_19911208.txt 21-Jun-2023 23:44 109478 dmsp_11_ephemeris_19911208.txt 21-Jun-2023 23:44 109449