Home » Solar Instruments » Mount Wilson Observatory 60-Foot Solar Tower
Mount Wilson Observatory 60-Foot Solar Tower
STATUS
Operational
AVAILABILITY
Integrated-light spectrometer is operated as part of the Birmingham Integrated Solar Oscillation Network and is not available for community access. High-resolution imaging systems are available for target-of-opportunity observing runs.
REQUEST PROCEDURE
To request specialized observing campaign observations, contact Dr. Edward Rhodes at erhodes@usc.edu.
Solar Instruments
Solar tower telescope built by George Ellery Hale in 1907. Currently used daily for continuation of historical sequence of white light solar photographs and for helioseismic observations. Instrumentation includes integrated light solar oscillation spectrometer, sodium and potassium Magneto-Optical Filters, two 1024x1024 pixel CCD cameras, one 512x512 pixel camera, PC-based data acquistion system.
CONTACT
Shawn Irish
University of Southern California
Mt. Wilson Observatory Mailcode 0484 Los Angeles, CA 90089-1342
+1 626 440 1149
sirish@usc.edu
http://physics.usc.edu/solar
SPECIFICATIONS
Spectral RangeNa DI, Na DII, K 7699 A lines
Spectral Resolution50 milliangstrom bandpass in MOFs
Spatial Coverage and Resolution2.2 arcsec /pixel on Full-disk images and integrated light (single pixel)
Temporal Resolutiontwo 1024x1024-pixel filtergrams per minute
Data AccuracyRadial Velocities calibrated daily
Data Precision12-bit ADC
Physical ObservablesFull-Disk Filtergrams
Derived OutputsFull-Disk solar Dopplergrams.
Concurrence Opportunities
Expected LifetimeIndefinitely
Location or OrbitMount Wilson Observatory, CA
Capability SummarySingle-station full-disk intensity and Doppler imaging for helioseismology studies. Integrated-light spectrometer dedicated to BiSON project.
Scheduling
Archival DataHistorical Full-disk Dopplergrams extending back into the late 1980s are now being archived at the MDI Science Center at Stanford University.
Number of UsersUSc group and Birminhgham solar physics group
Planned UpgradesSimultaneous operation of sodium and potassium MOF acquisition systems for dual-height observations.
Sub-Instruments
Data Products
University FacilityNo
National Ground BasedNo
SatelliteNo
Virtual ArchiveNo
UPDATED ON
3 Sep 2009 13:47