../ dmsp_15_ephemeris_20120514.txt 22-Jun-2023 00:19 109557 dmsp_16_ephemeris_20120514.txt 22-Jun-2023 00:19 109648 dmsp_17_ephemeris_20120514.txt 22-Jun-2023 00:19 109770 dmsp_18_ephemeris_20120514.txt 22-Jun-2023 00:19 109634