标题： 卡西尼飞船上的宇宙尘分析仪的计数数据以及土星周围的可能“尘云” 显示英文标题

标题： Counter Data of the Cosmic Dust Analyzer aboard the Cassini spacecraft and possible "dust clouds" at Saturn

摘要： 我们展示了卡西尼号航天器上的宇宙尘埃分析仪（CDA）记录的尘埃粒子撞击率。这些“尘埃计数器”评估撞击的质量，并导致空间中尘埃粒子的表观密度。原始数据被预选并精炼成一种新结构，以便更好地研究行星际尘埃颗粒的密度、流速和特性。我们的数据已针对仪器的死区时间进行了校正，并对应于假设的开普勒轨道（敏感区域的指向）。处理后的数据发布在磁层与等离子科学（MAPSview）网站上，可以与其他卡西尼仪器的数据进行相关性分析。我们展示了土卫六飞越任务中第250个太阳日/2006年的样本数据。我们发现，在土卫六和瑞亚之间的空旷区域内，尘埃密度至少在两个时间段达到峰值。这种特征可能表明存在缓慢漂移的小粒子扩展云。这些密度云似乎可以稳定几个月甚至几年，然后才逐渐消散。 显示英文摘要

摘要： We present the impact rates of dust particles recorded by the Cosmic Dust Analyzer (CDA) aboard the Cassini spacecraft. The "dust counters" evaluate the quality of an impact and give rise to the apparent density of dust particles in space. The raw data is pre-selected and refined to a new structure that serves to a better investigation of densities, flows, and properties of interplanetary dust grains. Our data is corrected for the dead time of the instrument and corresponds to an assumed Kepler orbit (pointing of the sensitive area). The processed data are published on the website for the Magnetosphere and Plasma Science (MAPSview), where it can be correlated with other Cassini instruments. A sample is presented for the Titan flyby on DOY 250/2006. We find that the dust density peaks at two times, at least, in a void region between Titan and Rhea. Such features may point to extended clouds of small particles drifting slowly in space. These density clouds seem to be stable for as long as several months or few years before dispersing.