Documentation > SXT Observation Notes > this page

Effect of Open/Open UV-Flood on Dark Signal

Image name: Dark_Sig_and_UV1_Flood.png (click image to enlarge)
Image size: 6.19000 KB (512x512)
Date submitted: 10-May-1997

Description:
     EFFECT OF OPEN/OPEN UV-FLOOD ON DARK SIGNAL
  
This plot displays the dark signal in DN/pixel for the HR
dark images taken before and after the open/open uv-flood
of '22-APR-97  08:17:21', '22-APR-97  09:45:19'.  The
short (DPE=2) and long (DPE=30) exposures are illustrated.
The time of the flood is indicated by the "dot" in each
panel.  The adjacent darkframe was taken  about 2 
hours after the completion of the flood interval.
  
From these images alone it is difficult to assert that
the open/open flood had any effect on the total dark
signal -- although the DPE=2 images may sxhibit a
short term effect in the read noise and spurious charge
part of the dark signal.
  
                              L. Acton  10-May-97


To the YLA Guide front page with side-frame
To contact us: