../ dmsp_10_ephemeris_19980521.txt 21-Jun-2023 23:51 109474 dmsp_11_ephemeris_19980521.txt 21-Jun-2023 23:51 109792 dmsp_12_ephemeris_19980521.txt 21-Jun-2023 23:51 109577 dmsp_13_ephemeris_19980521.txt 21-Jun-2023 23:51 109756 dmsp_14_ephemeris_19980521.txt 21-Jun-2023 23:51 109701