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Space Telescope Imaging Spectrograph
Phase I: CCD Dark Monitor Part II

STIS Cycle-18 Calibration Phase-1

Last Revised: August 24, 2010
Proposal ID: 12401
Title: CCD Dark Monitor Part 2
PI: Michael A. Wolfe
Co-I(s): William Van Dyke Dixon, Elena Mason
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# Orbit estimates are TOTAL for all of cycle-18; assume 26 weeks 
# 01 May 2011 to 31 October 2011

Total Prime Orbits:             0
External Parallel Orbits:       0
Internals or no-impact orbits:  368
Comments on orbit estimate:   Orbits will occur twice a day
starting in May 2011 and ending in October 2011.  


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# This section should be written with a GO audience in mind -- use 
# Calibration plans in WFPC-2 handbook as a guide.

Purpose:  Monitor the darks for the STIS CCD.        

                                      
Description:   Obtain darks at GAIN=1 in order to monitor CCD 
behaviour and chart growth of hot and bad pixels. Check how 
well the anneals work for the CCD. All exposures are internals 
and fit in occultation orbits. 
               
Accuracy:  > 5%

Comments on Accuracy: 
     
Products: Weekly CDBS reference files (superdarks)    



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# THE REST OF THIS FORM IS FOR INTERNAL USE
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# Target information (copy for each target)

Target Name.............................: n/a (internal)	
RA.............................................: n/a 		
Dec...........................................: n/a		
Flux (and units)........................: n/a	
Visibility window (if known or relevant): n/a
Comment on choice of target: n/a

# Table of exposures (copy for each exposure):

Target or lamp..........................: DARK
Type of Acquisition.....................: 
Detector for observation................: STIS/CCD
Operating mode .........................: 
Spectral Element........................: DEF
Aperture................................: DEF
Central Wavelength......................:  
Exposure Time...........................: 1100s
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.:
BOP Predicted Global Count Rate for MAMA:
ETC PID IDs for Count Rates.............:
Special Requirements or options.........: 
Comments: Take exposure twice a day

Target or lamp..........................: DARK
Type of Acquisition.....................: 
Detector for observation................: STIS/CCD
Operating mode .........................:  
Spectral Element........................: DEF
Aperture................................: DEF
Central Wavelength......................:  
Exposure Time...........................: 60s
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.:
BOP Predicted Global Count Rate for MAMA:
ETC PID IDs for Count Rates.............:
Special Requirements or options.........: 
Comments: Take exposure four times a day.

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# Special needs of this proposal?

Scheduling: Schedule twice a day. Start on May 01, 2011.

Prerequisites: n/a

PDB update?               no
On-board table update?    no

# Special Requirements:
Real time?                N
Special commanding?       N
Quick Data turnaround?    N
Special timing required?  N
Other?                    N
Describe (& justify) special requirements:


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# Link to Cycle 18 Science

Fraction of science programs supported by this calibration: 60% of STIS

List categories of science which can't be executed until after this proposal:
  none
why: 

List categories of science which are best performed contemporaneous with 
this proposal: 
  none
why:

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Expected FTE weeks for analysis:            2   
Required turnaround on analysis (weeks):    2
Data volume (Mb needed for analysis):       10.5Mb
Special software needed for analysis? (Describe): 
basedarkT, weekdarkT, and daydarkT are needed for the creation of
the superdarks. The 'T' means that there is correction within
each of these procedures that normalizes the temperature on the
Side-2 electronics.  
 
Description of analysis Plans:	Retrieve and construct superdarks.
These superdarks are compared to previous superdarks and the
image ststistics are checked to see if there are any anomalous
statistical deviations.