Identification of the Beagle 2 lander on Mars.
Identification of the Beagle 2 lander on Mars.
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DOI：
10.1098/rsos.170785
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发表时间：
2017-10
影响因子：
3.5
通讯作者：
Pillinger JM
中科院分区：
文献类型：
--
作者：
Bridges JC;Clemmet J;Croon M;Sims MR;Pullan D;Muller JP;Tao Y;Xiong S;Putri AR;Parker T;Turner SMR;Pillinger JM
2003年的“小猎犬2号”火星着陆器在东经90.43°，北纬11.53°的伊西迪斯平原被发现，接近预测目标东经90.50°，北纬11.53°。小猎犬2号是一个外太空生物着陆器，作为欧洲航天局火星快车（MEX）任务的一部分，旨在寻找火星上生命的同位素和成分迹象。2004年，从3西格玛长轴从174公里到57公里的原始着陆椭圆重新计算，以及火星侦察轨道器高分辨率成像科学实验（HiRISE）图像在目标区域以每像素30厘米的速度获得，导致了2014年对着陆器的初步识别。在此之后，更多的HiRISE图像，总共有15张，包括红色和蓝绿色，在感兴趣的区域进行搜索，这使得使用超高分辨率技术进行亚像素成像成为可能。尺寸（大约）：1.5米)，独特的多叶形状，相对于当地地形的高反射率，镜面反射，以及接近计划着陆椭圆中心的位置，导致了小猎犬2着陆器的识别。图像中的着陆器的形状，虽然在某种程度上被各种图像中的镜面反射所掩盖，但与着陆器盖以及部分或全部太阳能电池板的部署一致。如果没有完全展开这些面板——这可能是由着陆过程中的损坏造成的——将会禁止着陆器和MEX之间的通信和科学操作的开始。这意味着进入的主要部分，下降和着陆顺序，从MEX弹出，进入大气层和降落伞展开，以及着陆按计划进行，可能只有最后的全面板展开失败。
The 2003 Beagle 2 Mars lander has been identified in Isidis Planitia at 90.43° E, 11.53° N, close to the predicted target of 90.50° E, 11.53° N. Beagle 2 was an exobiology lander designed to look for isotopic and compositional signs of life on Mars, as part of the European Space Agency Mars Express (MEX) mission. The 2004 recalculation of the original landing ellipse from a 3-sigma major axis from 174 km to 57 km, and the acquisition of Mars Reconnaissance Orbiter High Resolution Imaging Science Experiment (HiRISE) imagery at 30 cm per pixel across the target region, led to the initial identification of the lander in 2014. Following this, more HiRISE images, giving a total of 15, including red and blue-green colours, were obtained over the area of interest and searched, which allowed sub-pixel imaging using super high-resolution techniques. The size (approx. 1.5 m), distinctive multilobed shape, high reflectivity relative to the local terrain, specular reflections, and location close to the centre of the planned landing ellipse led to the identification of the Beagle 2 lander. The shape of the imaged lander, although to some extent masked by the specular reflections in the various images, is consistent with deployment of the lander lid and then some or all solar panels. Failure to fully deploy the panels—which may have been caused by damage during landing—would have prohibited communication between the lander and MEX and commencement of science operations. This implies that the main part of the entry, descent and landing sequence, the ejection from MEX, atmospheric entry and parachute deployment, and landing worked as planned with perhaps only the final full panel deployment failing.
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影响因子：
4.8
作者：
Crisp, JA;Adler, M;Kass, DM
通讯作者：
Kass, DM
影响因子：
3.5
作者：
Wright, IP;Sims, MR;Pillinger, CT
通讯作者：
Pillinger, CT
影响因子：
4.8
作者：
Kinch, Kjartan M.;Sohl-Dickstein, Jascha;Landis, Geoffrey A.
通讯作者：
Landis, Geoffrey A.
影响因子：
4.8
作者：
Bridges, JC;Seabrook, AM;Morley, JG
通讯作者：
Morley, JG
DOI：
10.1016/s0273-1177(99)00280-x
发表时间：
1999-01-01
期刊：
MOON AND MARS
影响因子：
--
作者：
Sims, MR;Pillinger, CT;Ng, TC
通讯作者：
Ng, TC