../ dmsp_10_ephemeris_19971221.txt 21-Jun-2023 23:50 109444 dmsp_11_ephemeris_19971221.txt 21-Jun-2023 23:50 109362 dmsp_12_ephemeris_19971221.txt 21-Jun-2023 23:50 109496 dmsp_13_ephemeris_19971221.txt 21-Jun-2023 23:50 109308 dmsp_14_ephemeris_19971221.txt 21-Jun-2023 23:50 109519