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Hubble Space Telescope
Phase I: 12084

COS Cycle-17 Calibration Phase-1 Template

Last Revised:			Date: Feb 05, 2010
Proposal ID:
Title:  G140L/1280 Internal to external wavelength scales
PI: Cristina Oliveira	 
Co-I(s):	

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# Orbit estimates are TOTAL for all of cycle-17; assume 72 weeks) 

Total Prime Orbits:             1
External Parallel Orbits:       0
Internals or no-impact orbits:  0
Comments on orbit estimate:     (e.g. 4 orbit visits, repeated monthly)

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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: Observe external target (NGC330-B37) to measure the separation between the internal and external wavelength scales for the new G140L/1280 setting.           
Description: This program observes the same target that was used in SMOV to obtained the offsets between the internal and external wavelength scales for the G140L/1230 setting (in program 11487). We use the same target acq strategy to ensure maximum centering accuracy. We obtain external data at FP=3,4, and 1. Special flash commands are used to ensure that any drift if present can be accurately removed.     
Accuracy:          
Comments on Accuracy: 
Products: Analysis of data obtained in this program will be used to update the FUV
wavelength dispersion reference file.

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# Link to Cycle 17 Science
# Use the GO + GTO Phase 1 exposure  listing and derived statistics
# posted on WWW.

Fraction of science programs supported by this calibration: The G140L/1280 setting
will replace the G140L/1230 setting in Cy 18.

List categories of science which can't be executed until after this proposal:
why: All that use this setting.

List categories of science which are best performed contemporaneous with 
this proposal: N/A
why: N/A

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# THE REST OF THIS FORM IS FOR INTERNAL USE

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Observation summary: 
	(e.g. Take spectra of G191B2B at each supported central wavelength 
	 of each grating with the CCD and the 52x0.5 slit.) 

# Target information (copy for each target)

Target Name.............................: CL-NGC-330-ELS-4 (NGC330-B37)	
RA......................................: 00 56 20.7900		
Dec.....................................: -72 28 33.80		
Flux (and units)........................: f=1.5e-13 erg/cm^2/sec/A @ 1450 A	
Visibility window (if known or relevant): 
Comment on choice of target: This is the same target used in SMOV to measure the internal
to external wavelength scales for G140L/1230

# Exposure list plan at the Phase I level. Be as complete as reasonable. 
# If possible information should be complete enough to allow easy 
# submission of a Phase 2 from this form. However, if you have to leave
# some of the fields blank below, or want to provide the information
# in another format, that is acceptable. (Make sure you do the BOP checking
# though, as this is a phase-1 issue.)

Table of exposures (copy for each exposure as appropriate/desired):

SEE PHASE II

Target or lamp..........................: 
Type of Acquisition.....................: 
Detector for observation................: 
Operating mode .........................: 
Spectral Element........................: 
Aperture................................: 
Central Wavelength......................: 
Exposure Time...........................: 
Number of Iterations ...................: 
BOP Predicted Local Count Rate for MAMA.:
BOP Predicted Global Count Rate for MAMA:
ETC PID IDs for Count Rates.............:
Special Requirements or options.........: (e.g. GAIN=4; LOW-SKY)
Comments: (e.g. if monitoring, specify frequency)