Home » Solar Instruments » SOHO/VIRGO
SOHO/VIRGO
STATUS
PI Instrument And Archive
AVAILABILITY
Data are available since spring 1996, the exact date depends on the Instrument
REQUEST PROCEDURE
http://sohowww.nascom.nasa.gov/data/data.html
Solar Instruments
Helioseismology and irradiance instrument: Variability of IRradiance and Gravity Oscillations
CONTACT
Claus Frohlich
cfrohlich@pmodwrc.ch
SECONDARY CONTACT
SPECIFICATIONS
Spectral RangeTSI: total, SPM: 402nm,500nm,778nm, LOI:500nm
Spectral ResolutionTSI: infinite, SPM,LOI: 5nm
Spatial Coverage and Resolutionsun as star, LOI: 12 pixels on the disk, 4 limb pixels
Temporal Resolution1 min cadence
Data AccuracyTSI: 0.2% , SPM: 2%, LOI: n.a.
Data Precision< 1ppm
Physical Observablestotal and specral solar irradiance, spectral radiance
Derived Outputs
Concurrence Opportunities
Expected Lifetimestill working (August 2007)
Location or OrbitL1
Capability Summary
Scheduling
Archival DataThe data can be retrieved from the VIRGO homepages or the SOHO archive
Number of Users
Planned Upgrades
Sub-InstrumentsTSI: PMO6V & DIARAD SSI: SPM SSR: LOI
Data ProductsTotal Solar Irradiance (TSI) Spectral Irradiance (SSI) 12pixel radiance (SSR)
University FacilityNo
National Ground BasedNo
SatelliteYes
Virtual ArchiveNo
UPDATED ON
3 Sep 2009 13:47