../ dmsp_08_ephemeris_19911215.txt 21-Jun-2023 23:44 109573 dmsp_09_ephemeris_19911215.txt 21-Jun-2023 23:44 109227 dmsp_10_ephemeris_19911215.txt 21-Jun-2023 23:44 109442 dmsp_11_ephemeris_19911215.txt 21-Jun-2023 23:44 109450