../ dmsp_11_ephemeris_19991221.txt 21-Jun-2023 23:54 109375 dmsp_12_ephemeris_19991221.txt 21-Jun-2023 23:54 109560 dmsp_13_ephemeris_19991221.txt 21-Jun-2023 23:54 109420 dmsp_14_ephemeris_19991221.txt 21-Jun-2023 23:54 109365 dmsp_15_ephemeris_19991221.txt 21-Jun-2023 23:54 109422