../ dmsp_15_ephemeris_20130104.txt 22-Jun-2023 00:21 106563 dmsp_16_ephemeris_20130104.txt 22-Jun-2023 00:21 106532 dmsp_17_ephemeris_20130104.txt 22-Jun-2023 00:21 106427 dmsp_18_ephemeris_20130104.txt 22-Jun-2023 00:21 106599