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Mauna Loa Solar Observatory
PI Instrument
Data are acquired every 3 minutes between ~17:00 UT and 02:30 UT since Jan 2003 and every 3 minutes between ~17:00 UT and ~22:00 UT prior to 2003, 365 days per year, WEATHER PERMITTING 1) White Light coronal data from 1980 to present - ALL DATA ON MLSO WEB PAGE 2) Halpha images from Sept 1997 to present. ALL DATA ON MLSO WEB PAGE 3) He-I images from Oct 1996 to present. ALL DATA ON MLSO WEB PAGE 4) Precision photometer 1998 to present. DATA ON PSPT WEB PAGE OR BY REQUEST
Data are available on MLSO web page: http://mlso.hao.ucar.edu/ If you can't find what you want email: mlso_data_requests@ucar.edu PSPT Precision Photometer Data: Jan 2005 to present on PSPT web page: http://lasp.colorado.edu/pspt_access/ Data prior to Jan 2005 email: mlso_data_requests@ucar.edu
Solar Instruments
Operates 4 solar instruments: 1) MK4/MK4 White light coronameter (low corona) 2) PICS Halpha imager: Full solar disk and limb (chromosphere) 3) CHIP He-I imager: Full solar disk and limb intensity + doppler (chromosphere) 4) PSPT Precision photometer: Full solar disk images in CaIIK, red and blue continuum (photosphere)
Joan Burkepile
High Altitude Observatory / NCAR
National Center for Atmospheric Research P.O. Box 3000 Boulder, Colorado 80307
303 497-1506
Spectral RangeWhite light corona: 700 to 900 nm, Halpha: 656.3 nm, He-I: 1083.0 +/- 0.13 nm, PSPT: CaIIK 393.4 nm +/- 0.3 nm, Red continuum 607.1 +/- 0.5 nm, Blue continuum 409.4 +/- 0.3 nm
Spectral Resolution
Spatial Coverage and ResolutionWhite light: FOV: 1.12 to 2.9 solar radii, 5.95
Temporal Resolution3 minutes
Data AccuracyWhite light: ~15%
Data PrecisionWhite light noise level: ~4x10^-9 B/Bsun; PSPT photometric data 0.1% pixel-to-pixel relative precision
Physical ObservablesWhite light: Stokes I,Q,U to obtain polarization brightness All other instruments observe in emission at line center and offband intensities
Derived Outputs
Concurrence Opportunities
Expected Lifetime10+ years
Location or OrbitMauna Loa (elev. 11,000 ft), Hawaii
Capability Summary
Archival DataAll data available from Mauna Loa Solar Observtory (MLSO) web page
Number of UsersHundreds
Planned UpgradesReplace existing facility with the COronal Solar Magnetism Observatory (COSMO),designed for routine study of coronal and chromospheric magnetic fields and their environment. The facility would include a 1.5 meter coronagraph dedicated to measuring coronal magnetic fields using the polarization of forbidden emission lines in the infrared. Two supporting instruments are: 1) a chromospheric magnetometer, to measure the magnetic field in the chromosphere, including prominences and filaments, using lines of helium (D3, 1083 nm) and perhaps Halpha; 2) a white light coronagraph to measure the polarization brightness of the very low corona.
Data Products
University FacilityNo
National Ground BasedNo
Virtual ArchiveNo
1 Apr 2011 16:15