../ dmsp_08_ephemeris_19911117.txt 21-Jun-2023 23:44 109508 dmsp_09_ephemeris_19911117.txt 21-Jun-2023 23:44 109281 dmsp_10_ephemeris_19911117.txt 21-Jun-2023 23:44 109500 dmsp_11_ephemeris_19911117.txt 21-Jun-2023 23:44 243