../ dmsp_08_ephemeris_19911230.txt 21-Jun-2023 23:44 109483 dmsp_09_ephemeris_19911230.txt 21-Jun-2023 23:44 109471 dmsp_10_ephemeris_19911230.txt 21-Jun-2023 23:44 109498 dmsp_11_ephemeris_19911230.txt 21-Jun-2023 23:44 109427