../ dmsp_15_ephemeris_20130411.txt 22-Jun-2023 00:22 109692 dmsp_16_ephemeris_20130411.txt 22-Jun-2023 00:22 109721 dmsp_17_ephemeris_20130411.txt 22-Jun-2023 00:22 109784 dmsp_18_ephemeris_20130411.txt 22-Jun-2023 00:22 109627