../ dmsp_15_ephemeris_20131116.txt 22-Jun-2023 00:23 109422 dmsp_16_ephemeris_20131116.txt 22-Jun-2023 00:23 109327 dmsp_17_ephemeris_20131116.txt 22-Jun-2023 00:23 109396 dmsp_18_ephemeris_20131116.txt 22-Jun-2023 00:23 109468