../ dmsp_08_ephemeris_19920421.txt 21-Jun-2023 23:44 109448 dmsp_09_ephemeris_19920421.txt 21-Jun-2023 23:44 109465 dmsp_10_ephemeris_19920421.txt 21-Jun-2023 23:44 109759 dmsp_11_ephemeris_19920421.txt 21-Jun-2023 23:44 109821