National Center for Atmospheric Research (NCAR)
Mk3 & Mk4 Coronameters
instrumentground observatory instrumentHistoricalIndustry: Aerospace
END OF AN ERA: THE MAUNA LOA K-CORONOMETER IS DECOMMISSIONED
- Category
- Physical Infrastructure
- Affiliations
- NCAR
Description
HAO's white-light K-coronameters at MLSO: Mark-III (1980–1999, linear-array scanning) and Mark-IV (from 1998, built with Rhodes College) with a liquid-crystal polarization modulator and CCD line array, producing polarization-brightness maps of the lower corona (~1.14–2.86 solar radii) at 3-minute cadence; the instrument has since been decommissioned.
Official page
https://www2.hao.ucar.edu/mlso/instruments/mk3-mk4-coronameters
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Contact
- Contact
- (no name)
Details
- Keywords
- k-coronameter, polarization brightness maps, liquid crystal modulator, rhodes college collaboration, linear array detection, venus transit 2012
- Location
- Mauna Loa, Hawaii
- Measurement band
- White light (700–900 nm)
- Instrument platform
- MLSO spar (ground-based)
- Associated entity
- High Altitude Observatory
- Status
- For more information about Mk3/Mk4, see END OF AN ERA: THE MAUNA LOA K-CORONOMETER IS DECOMMISSIONED
- Specifications
- Spatial sampling is 10 arcseconds radially by 0.5 degrees in azimuth. | The Mark-IV K-coronameter replaces its predecessor, the Mark-III and features a high speed liquid crystal polarization modulator, a low noise CCD line array detector, and an achr…