../ dmsp_08_ephemeris_19920917.txt 21-Jun-2023 23:45 109550 dmsp_09_ephemeris_19920917.txt 21-Jun-2023 23:45 109551 dmsp_10_ephemeris_19920917.txt 21-Jun-2023 23:45 109633 dmsp_11_ephemeris_19920917.txt 21-Jun-2023 23:45 109844