../ dmsp_15_ephemeris_20111127.txt 22-Jun-2023 00:18 109361 dmsp_16_ephemeris_20111127.txt 22-Jun-2023 00:18 109298 dmsp_17_ephemeris_20111127.txt 22-Jun-2023 00:18 109327 dmsp_18_ephemeris_20111127.txt 22-Jun-2023 00:18 109455