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首页> 外文会议>Focal Plane Arrays for Space Telescopes III; Proceedings of SPIE-The International Society for Optical Engineering; vol.6690 >Mission to Mars: the HiRISE camera on-board MRO
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Mission to Mars: the HiRISE camera on-board MRO

机译：火星任务：HiRISE机载MRO摄像机

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Following its launch in August, 2005 and a year of interplanetary cruise and aero-braking, the successful Mars Reconnaissance Orbiter (MRO) mission is currently orbiting Mars and down-linking imagery from the High Resolution Imaging Science Experiment (HiRISE) camera. The primary objectives of the MRO mission are to characterize the present climate of Mars, look for evidence of water-related activities, and characterize potential landing sites. After only four months in the Primary Science Phase (PSP) of the mission, MRO has returned more data than any other previous Mars mission. Approximately one-third of this data volume is from the HiRISE camera, built by Ball Aerospace & Technologies Corporation (BATC), for the University of Arizona (UofA), Department of Planetary Sciences. With a 0.5-meter primary mirror, the HiRISE instrument includes the largest optical telescope ever sent beyond Earth's orbit, and is producing images with unprecedented resolution. It has detected objects of less than one meter size from the nominal orbit of 250 × 320 km. The highest resolution images have a scale of 25 to 32 cm per pixel (1.0 microradian IFOV). HiRISE is a "push-broom" camera with a swath width of 6 km in a broad red spectral band and 1.2 km in blue-green and near infrared bands. There are 14 CCD detector chips (2048 × 128 TDI elements each) on the focal plane. The HiRISE camera was designed to minimize use of spacecraft resources. Even with a half-meter primary mirror, through the use of lightweight glass optics and graphite-composite structures the final mass of the instrument is only 64.2 kg. It maintains a nearly uniform telescope temperature of 20℃ yet its orbital average power consumption is less than 60 W. An overview is given of the NASA MRO mission and the HiRISE instrument. Pre-launch activities are detailed and the launch time discussed. An account is given of the cruise events, along with a description of aerobraking and the primary science phase. A sample of science results are presented, including a wealth of imagery.
机译：在2005年8月发射升空以及一年的行星际巡航和航空制动之后，成功的火星侦察轨道飞行器（MRO）任务目前正在火星轨道上运行，并且将高分辨率成像科学实验（HiRISE）相机的图像进行下行链接。 MRO任务的主要目标是表征火星的当前气候，寻找与水有关的活动的证据，并表征潜在的着陆点。在执行任务的初级科学阶段（PSP）仅四个月后，MRO返回的数据就超过了之前的其他火星任务。该数据量约有三分之一来自HiRISE摄像机，该摄像机是由Ball Aerospace＆Technologies Corporation（BATC）为亚利桑那大学（UofA）行星科学系制造的。 HiRISE仪器配有0.5米的主镜，包括有史以来最大的光学望远镜，可以发送到地球轨道以外，并且可以产生前所未有的分辨率的图像。它检测到距标称轨道250×320 km小于一米的物体。最高分辨率的图像每像素比例为25到32厘米（1.0微弧度IFOV）。 HiRISE是一种“推扫式”相机，在宽的红色光谱带中的扫描宽度为6 km，在蓝绿色和近红外带的扫描宽度为1.2 km。焦平面上有14个CCD检测器芯片（每个2048×128 TDI元件）。 HiRISE摄像机旨在最大程度地减少航天器资源的使用。即使使用半米主镜，通过使用轻型玻璃光学器件和石墨复合结构，仪器的最终质量也仅为64.2 kg。它保持近20℃的均匀望远镜温度，但其轨道平均功耗不到60W。概述了NASA MRO任务和HiRISE仪器。详细介绍了发布前的活动并讨论了发布时间。介绍了巡航事件，以及对航空制动和初级科学阶段的描述。展示了科学结果的样本，包括大量图像。

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