../ dmsp_15_ephemeris_20200410.txt 22-Jun-2023 00:43 109605 dmsp_16_ephemeris_20200410.txt 22-Jun-2023 00:43 109652 dmsp_17_ephemeris_20200410.txt 22-Jun-2023 00:43 109735 dmsp_18_ephemeris_20200410.txt 22-Jun-2023 00:43 109570