../ dmsp_15_ephemeris_20131125.txt 22-Jun-2023 00:23 109456 dmsp_16_ephemeris_20131125.txt 22-Jun-2023 00:23 109295 dmsp_17_ephemeris_20131125.txt 22-Jun-2023 00:23 109204 dmsp_18_ephemeris_20131125.txt 22-Jun-2023 00:23 109328