../ dmsp_08_ephemeris_19911224.txt 22-Jun-2023 15:41 109488 dmsp_09_ephemeris_19911224.txt 22-Jun-2023 15:41 109237 dmsp_10_ephemeris_19911224.txt 22-Jun-2023 15:41 109463 dmsp_11_ephemeris_19911224.txt 22-Jun-2023 15:41 109438