../ dmsp_15_ephemeris_20120922.txt 22-Jun-2023 00:20 109627 dmsp_16_ephemeris_20120922.txt 22-Jun-2023 00:20 109691 dmsp_17_ephemeris_20120922.txt 22-Jun-2023 00:20 109684 dmsp_18_ephemeris_20120922.txt 22-Jun-2023 00:20 109677