../ dmsp_15_ephemeris_20131104.txt 22-Jun-2023 00:23 109343 dmsp_16_ephemeris_20131104.txt 22-Jun-2023 00:23 109410 dmsp_17_ephemeris_20131104.txt 22-Jun-2023 00:23 109520 dmsp_18_ephemeris_20131104.txt 22-Jun-2023 00:23 109356