../ dmsp_08_ephemeris_19911208.txt 22-Jun-2023 15:43 109404 dmsp_09_ephemeris_19911208.txt 22-Jun-2023 15:43 109218 dmsp_10_ephemeris_19911208.txt 22-Jun-2023 15:43 109478 dmsp_11_ephemeris_19911208.txt 22-Jun-2023 15:43 109449