Documentation > SXT Observation Notes > this page |
Image name: X_radiance_active_quiet.png (click image to enlarge)
Image size: 6.64700 KB (800x400)
Date submitted: 31-May-1995
RADIANCE DISTRIBUTION OF ACTIVE AND QUIET SUN These 2 histograms were prepared from the Al.1 full sun SFD images for the periods indicated. The quiet sun radiance is essentially a double peaked disbribution depending upon whether or not there is an active region on the disk. The radiance is for the 0-300 A band. Units of radiance are erg/sec at the sun. The errors on any given determination are roughly a factor of two, depending upon the differential emission measure. Flares are excluded from these distributions. L. Acton 31-May-95