../ dmsp_08_ephemeris_19911201.txt 21-Jun-2023 23:44 109429 dmsp_09_ephemeris_19911201.txt 21-Jun-2023 23:44 109211 dmsp_10_ephemeris_19911201.txt 21-Jun-2023 23:44 109520 dmsp_11_ephemeris_19911201.txt 21-Jun-2023 23:44 109478