../ dmsp_15_ephemeris_20120927.txt 22-Jun-2023 00:20 109674 dmsp_16_ephemeris_20120927.txt 22-Jun-2023 00:20 109633 dmsp_17_ephemeris_20120927.txt 22-Jun-2023 00:20 109736 dmsp_18_ephemeris_20120927.txt 22-Jun-2023 00:20 109630