../ dmsp_10_ephemeris_19970411.txt 21-Jun-2023 23:49 109606 dmsp_11_ephemeris_19970411.txt 21-Jun-2023 23:49 109800 dmsp_12_ephemeris_19970411.txt 21-Jun-2023 23:49 109725 dmsp_13_ephemeris_19970411.txt 21-Jun-2023 23:49 109721 dmsp_14_ephemeris_19970411.txt 21-Jun-2023 23:49 243