../ dmsp_08_ephemeris_19911120.txt 21-Jun-2023 23:44 109390 dmsp_09_ephemeris_19911120.txt 21-Jun-2023 23:44 109303 dmsp_10_ephemeris_19911120.txt 21-Jun-2023 23:44 109498 dmsp_11_ephemeris_19911120.txt 21-Jun-2023 23:44 243