• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Astronomy and astrophysics >The Hayabusa2 lander MASCOT on the surface of asteroid (162173) Ryugu – Stereo-photogrammetric analysis of MASCam image data
【24h】

The Hayabusa2 lander MASCOT on the surface of asteroid (162173) Ryugu – Stereo-photogrammetric analysis of MASCam image data

机译：小行星表面上的Hayabusa2着陆器MASCOT（162173）Ryugu – MASCam图像数据的立体摄影测量分析

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

After its release and a descent and bouncing phase, the Hayabusa2 lander MASCOT came to a final rest and MASCOT’s camera MASCam acquired a set of images of the surface of Ryugu. With MASCam’s instantaneous field of view of about 1 mrad, the images provide pixel scales from 0.2 to 0.5 mm pixel~(?1)in the foreground and up to 1 cm pixel~(?1)for surface parts in the background. Using a stereo-photogrammetric analysis of the MASCam images taken from slightly different positions due to commanded and unintentional movements of the MASCOT lander, we were able to determine the orientation for the different measurement positions. Furthermore, we derived a 3D surface model of MASCOT’s vicinity. Although the conditions for 3D stereo processing were poor due to very small stereo angles, the derived 3D model has about 0.5 cm accuracy in the foreground at 20 cm distance and about 1.5 cm at a distance of 40–50 cm.
机译：在发布，下降和弹跳阶段之后，Hayabusa2着陆器MASCOT进入了最后的静止状态，MASCOT的相机MASCam获得了一套龙古表面的图像。在MASCam的瞬时视场约为1 mrad的情况下，图像在前景中提供的像素比例为0.2到0.5 mm pixel〜（？1），而在背景表面提供的像素比例则高达1 cm pixel〜（？1）。通过对由于MASCOT着陆器的命令性和意外移动而从略有不同的位置拍摄的MASCam图像进行立体摄影测量分析，我们能够确定不同测量位置的方向。此外，我们导出了MASCOT附近的3D表面模型。尽管由于非常小的立体角度，用于3D立体处理的条件很差，但是派生的3D模型在20厘米距离处的前景精度约为0.5厘米，在40-50厘米距离处的精度约为1.5厘米。

著录项

相似文献

  • 外文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号