STScI Logo

Hubble Space Telescope
Phase I: 11894

COS Cycle-17 Calibration Phase-1 Template

Last Revised: 
Proposal ID: 11894
Title: NUV Detector Dark Monitor
PI: T. Ake
Co-I(s): P. Goudfrooij
         C. Keyes
         D. Sahnow
---------------------------------------------------------------------------
# Orbit estimates are TOTAL for all of cycle-17; assume 4 weeks 
# 01 March 2009, 01 September 2009, 01 March 2010

Total Prime Orbits:                  0
External Parallel Orbits:            0
Internals or no-impact orbits:       130
Comments on orbit estimate:          if starting Dec. 2008
---------------------------------------------------------------------------
# This section should be written with a GO audience in mind -- use 
# Calibration plans in WFPC-2 handbook as a guide.

Purpose:  Perform routine monitoring of MAMA detector dark current. The 
          main purpose is to look for evidence of a change in the dark, 
          both to track on-orbit time dependence and to check for a 
          detector problem developing.

                                      
Description:     Take ~25 min exposure with the NUV MAMA with shutter 
                 closed, twice a week. 

               
Accuracy:  1%  

Comments on Accuracy:  (Each measurement to yield a Poisson uncertainty of 
                       1% for global dark rate.)
     
Products:  CDBS Dark and Bad Pixel reference files; ISR



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

Target Name.............................: DARK	
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.....................: N/A
Detector for observation................: NUV MAMA
Operating mode .........................: TIME-TAG
Spectral Element........................: DEF
Aperture................................: DEF
Central Wavelength......................: 
Exposure Time...........................: 1330.0 S
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: 
                                          
Target or lamp..........................: DARK
Type of Acquisition.....................: N/A
Detector for observation................: NUV MAMA
Operating mode .........................: TIME-TAG
Spectral Element........................: DEF
Aperture................................: DEF
Central Wavelength......................: 
Exposure Time...........................: 1330.0 S
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: Less than 6 days after visit 1

Target or lamp..........................: DARK
Type of Acquisition.....................: N/A
Detector for observation................: NUV MAMA
Operating mode .........................: TIME-TAG
Spectral Element........................: DEF
Aperture................................: DEF
Central Wavelength......................: 
Exposure Time...........................: 1330.0 S
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: Less than 6 days after visit 1

Target or lamp..........................: DARK
Type of Acquisition.....................: N/A
Detector for observation................: NUV MAMA
Operating mode .........................: TIME-TAG
Spectral Element........................: DEF
Aperture................................: DEF
Central Wavelength......................: 
Exposure Time...........................: 1330.0 S
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: Less than 6 days after visit 1
---------------------------------------------------------------------------
# Special needs of this proposal?

Scheduling: Should start when schedule allows it just before SMOV formally 
            ends (TBD) and continue seamlessly to Mar 2010. 

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:


-------------------------------------------------------------------------
# Link to Cycle 17 Science

Fraction of science programs supported by this calibration: 25% of COS

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:

---------------------------------------------------------------------------

Expected FTE weeks for analysis:            4   
Required turnaround on analysis (weeks):    
Data volume (Mb needed for analysis):       
Special software needed for analysis? (Describe): 

Description of analysis Plans: