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Hubble Space Telescope
Phase I: 12085

COS Cycle-17 Calibration Phase-1 Template

Last Revised:			Date: Feb 10, 2010
Proposal ID:
Title: STIS/E230M observations of HD6655 to calibrate COS/G230L
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: Obtain STIS/E230M data of HD6655 to calibrate the COS G230L grating.
           
Description: This program observes HD6655, a radial velocity standard, with STIS/E230M/c2707.
This target was observed by COS/G230L in the NUV wavelength calibration program executed during SMOV. Thhese STIS observations will help us to determine the offsets of the COS/G230L internal to external wavelength scales. Observing HD6655 with this STIS setting will allow us to obtain S/N ~ 20 at 2350 A. The STIS data will overlap with stripe B of the COS/G230L 2635, 2950, and 3000 cenwaves, as well as with the stripe A of the 3360 cenwave.

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:

List categories of science which can't be executed until after this proposal:
why: 

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)  See Phase II  

Target Name.............................: HD 6655
RA......................................:		
Dec.....................................:		
Flux (and units)........................:	
Visibility window (if known or relevant):
Comment on choice of target:

# 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):

Target or lamp..........................: e.g. G191B2B, or HITM
Type of Acquisition.....................: e.g. ACQ-PEAK
Detector for observation................: e.g. CCD
Operating mode .........................: e.g. ACCUM or TIMETAG
Spectral Element........................: e.g. G430L
Aperture................................: e.g. 50x0.5
Central Wavelength......................: e.g. 4300
Exposure Time...........................: e.g. 300s, crsplit=2 
Number of Iterations ...................: e.g. 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.........: (e.g. GAIN=4; LOW-SKY)
Comments: (e.g. if monitoring, specify frequency)