The Heliospheric Imagers Onboard the STEREO Mission

@article{Eyles2009TheHI,
  title={The Heliospheric Imagers Onboard the STEREO Mission},
  author={Chris J. Eyles and Richard A. Harrison and C. J. Davis and Nicholas R. Waltham and Bryan M. Shaughnessy and Helen Mapson-Menard and Danielle Bewsher and Steve Crothers and Jackie A. Davies and George M. Simnett and Russell A. Howard and John D. Moses and Jeffrey Newmark and Dennis George Socker and J. P. Halain and Jean-Marc Defise and Emmanuel Mazy and P. Rochus},
  journal={Solar Physics},
  year={2009},
  volume={254},
  pages={387-445}
}
Mounted on the sides of two widely separated spacecraft, the two Heliospheric Imager (HI) instruments onboard NASA’s STEREO mission view, for the first time, the space between the Sun and Earth. These instruments are wide-angle visible-light imagers that incorporate sufficient baffling to eliminate scattered light to the extent that the passage of solar coronal mass ejections (CMEs) through the heliosphere can be detected. Each HI instrument comprises two cameras, HI-1 and HI-2, which have 20… 

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