../ dmsp_08_ephemeris_19911220.txt 22-Jun-2023 15:42 109538 dmsp_09_ephemeris_19911220.txt 22-Jun-2023 15:42 109196 dmsp_10_ephemeris_19911220.txt 22-Jun-2023 15:42 109324 dmsp_11_ephemeris_19911220.txt 22-Jun-2023 15:42 109379