• DOI:10.1007/978-94-009-0191-9_10
• Corpus ID: 117859650

The Large Angle Spectroscopic Coronagraph (LASCO)

@article{Brueckner1995TheLA,
  title={The Large Angle Spectroscopic Coronagraph (LASCO)},
  author={Guenter E. Brueckner and R. A. Howard and Martin Koomen and Clarence M. Korendyke and D. J. Michels and John D. Moses and Dennis George Socker and Kenneth P. Dere and Philippe Lamy and Antoine Llebaria and Maurice V. Bout and Rainer Schwenn and George M. Simnett and Dorothy K. Bedford and Chris J. Eyles},
  journal={Solar Physics},
  year={1995},
  volume={162},
  pages={357-402}
}

• G. Brueckner, R. Howard, +12 authors C. Eyles
• Published 1 December 1995
• Physics
• Solar Physics

The Large Angle Spectroscopic Coronagraph (LASCO) is a three coronagraph package which has been jointly developed for the Solar and Heliospheric Observatory (SOHO) mission by the Naval Research Laboratory (USA), the Laboratoire d'Astronomie Spatiale (France), the Max-Planck-Institut für Aeronomie (Germany), and the University of Birmingham (UK). LASCO comprises three coronagraphs, C1, C2, and C3, that together image the solar corona from 1.1 to 30 R⊙ (C1: 1.1 – 3 R⊙, C2: 1.5 – 6 R⊙, and C3: 3.7 – 30 R⊙). The C1 coronagraph is a newly developed mirror version of the classic internally-occulted Lyot coronagraph, while the C2 and C3 coronagraphs are externally occulted instruments. High-resolution imaging spectroscopy of the corona from 1.1 to 3 R⊙ can be performed with the Fabry-Perot interferometer in C1. High-volume memories and a high-speed microprocessor enable extensive on-board image processing. Image compression by a factor of about 10 will result in the transmission of 10 full images per hour.