../ dmsp_11_ephemeris_19991218.txt 21-Jun-2023 23:54 109404 dmsp_12_ephemeris_19991218.txt 21-Jun-2023 23:54 109348 dmsp_13_ephemeris_19991218.txt 21-Jun-2023 23:54 109331 dmsp_14_ephemeris_19991218.txt 21-Jun-2023 23:54 109500 dmsp_15_ephemeris_19991218.txt 21-Jun-2023 23:54 109426