../ dmsp_08_ephemeris_19921221.txt 21-Jun-2023 23:45 109445 dmsp_09_ephemeris_19921221.txt 21-Jun-2023 23:45 109226 dmsp_10_ephemeris_19921221.txt 21-Jun-2023 23:45 109518 dmsp_11_ephemeris_19921221.txt 21-Jun-2023 23:45 109425