../ dmsp_13_ephemeris_20051218.txt 22-Jun-2023 00:04 109259 dmsp_14_ephemeris_20051218.txt 22-Jun-2023 00:04 109316 dmsp_15_ephemeris_20051218.txt 22-Jun-2023 00:04 109437 dmsp_16_ephemeris_20051218.txt 22-Jun-2023 00:04 109365