The compact Doppler magnetograph (CDM) for solar polar missions and space weather research

Donald M. Hassler; Sanjay Gosain; Jean-Pierre Wuelser; Jack Harvey; Thomas N. Woods; Joseph Alexander; Doug Braun; Sarah Gibson; Viliam Klein; Ashley Flores; Rick Kohnert; Jeffrey Newmark; Steve Osterman; Mark Phillips; Thomas J. Rose; Michael Shoffner; Han Uitenbroek; Klaus Heerlein; Joachim Woch; Junwei Zhao

doi:10.1117/12.2630663

27 August 2022 The compact Doppler magnetograph (CDM) for solar polar missions and space weather research

Donald M. Hassler, Sanjay Gosain, Jean-Pierre Wuelser, Jack Harvey, Thomas N. Woods, Joseph Alexander, Doug Braun, Sarah Gibson, Viliam Klein, Ashley Flores, Rick Kohnert, Jeffrey Newmark, Steve Osterman, Mark Phillips, Thomas J. Rose, Michael Shoffner, Han Uitenbroek, Klaus Heerlein, Joachim Woch, Junwei Zhao

Author Affiliations +

Proceedings Volume 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave; 121800K (2022) https://doi.org/10.1117/12.2630663
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

The Compact Doppler Magnetograph (CDM) is a space-qualified, miniaturized Doppler magnetograph, tailored to the requirements of a solar polar mission, and designed to provide photospheric line-of-sight magnetic field and Doppler velocity measurements of the solar surface. CDM is derived from the proven GONG (Global Oscillations Network Group) instrument design (Harvey et al., 1988, 1996), with a space qualified prototype developed for the Solaris solar polar MIDEX mission (Hassler et al., 2020). CDM has roughly 1/3 the mass of current state-of-the-art Doppler magnetographs (e.g., SOHO/MDI, SDO/HMI, SolO/PHI), with greatly increased sensitivity to the magnetic field (B) and Doppler velocity (v) and the capability to perform over an expanded spacecraft orbital velocity range, which is required to fit within the mission design constraints of currently feasible high latitude solar polar missions.

Conference Presentation

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Donald M. Hassler, Sanjay Gosain, Jean-Pierre Wuelser, Jack Harvey, Thomas N. Woods, Joseph Alexander, Doug Braun, Sarah Gibson, Viliam Klein, Ashley Flores, Rick Kohnert, Jeffrey Newmark, Steve Osterman, Mark Phillips, Thomas J. Rose, Michael Shoffner, Han Uitenbroek, Klaus Heerlein, Joachim Woch, and Junwei Zhao "The compact Doppler magnetograph (CDM) for solar polar missions and space weather research", Proc. SPIE 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 121800K (27 August 2022); https://doi.org/10.1117/12.2630663

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