../ dmsp_08_ephemeris_19921231.txt 21-Jun-2023 23:45 109575 dmsp_09_ephemeris_19921231.txt 21-Jun-2023 23:45 243 dmsp_10_ephemeris_19921231.txt 21-Jun-2023 23:45 109601 dmsp_11_ephemeris_19921231.txt 21-Jun-2023 23:45 109478