../ dmsp_08_ephemeris_19911210.txt 21-Jun-2023 23:44 109504 dmsp_09_ephemeris_19911210.txt 21-Jun-2023 23:44 109253 dmsp_10_ephemeris_19911210.txt 21-Jun-2023 23:44 109446 dmsp_11_ephemeris_19911210.txt 21-Jun-2023 23:44 109414