../ dmsp_11_ephemeris_19991231.txt 22-Jun-2023 15:50 109505 dmsp_12_ephemeris_19991231.txt 22-Jun-2023 15:50 109340 dmsp_13_ephemeris_19991231.txt 22-Jun-2023 15:50 109315 dmsp_14_ephemeris_19991231.txt 22-Jun-2023 15:50 109434 dmsp_15_ephemeris_19991231.txt 22-Jun-2023 15:50 109460