../ dmsp_15_ephemeris_20120619.txt 22-Jun-2023 00:20 109476 dmsp_16_ephemeris_20120619.txt 22-Jun-2023 00:20 109683 dmsp_17_ephemeris_20120619.txt 22-Jun-2023 00:20 109662 dmsp_18_ephemeris_20120619.txt 22-Jun-2023 00:20 109630