../ dmsp_08_ephemeris_19911118.txt 21-Jun-2023 23:44 109510 dmsp_09_ephemeris_19911118.txt 21-Jun-2023 23:44 109271 dmsp_10_ephemeris_19911118.txt 21-Jun-2023 23:44 109476 dmsp_11_ephemeris_19911118.txt 21-Jun-2023 23:44 243