COS Cycle-17 Calibration Phase-1 Template

Last Revised:			Date 26 Jan 2010
Proposal ID:			(e.g. 9026)
Title:				STIS PtCr/Ne Lamp Ratios
PI:				I. Pascucci
Co-I(s):			Ch. Proffitt, C. Oliveira ??	

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

Total Prime Orbits:             0
External Parallel Orbits:       0
Internals or no-impact orbits:  7
Comments on orbit estimate:     Lamp monitoring program

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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:                       To provide improved information on the ratio of the STIS wavelength calibration lamps at all wavelengths. The LINE & HITM1 lamps have faded by a factor of several since launch, and at the shortest wavelengths the fading is enough to have significantly impacted the S/N of the wavecals.  The FUV flux of the HITM2 lamp has not been checked since 1997, and so a detailed comparison of all three lamps is needed to support a proper wavelength calibration for GO proposals. 
Description:                    Take a 500 s lamp G140L, narrow (52x0.1) aperture lamp exposure with each of the HITM1, HITM2, and the LINE lamps. Also take G230LB, G430L, and G750L with the same three lamps to get a full spectrum of the lamp brightness. After evaluating the lamp ratios in the G140L setting, take a 1000 s E140H-1234 narrow (0.2x0.09) aperture lamp exposure with the three lamps.
Accuracy:               5%         
Comments on Accuracy:   measure differences in fluxes between different lamp monitoring to
			the accuracy above to test the fading of the lamps at this level        
Products:    		Revisions to TRANS tables for auto- and GO- wavecals                   

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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:     0%

List categories of science which can't be executed until after this proposal: none
why: the impact could be on future GO observations that require accurate wavelength calibration

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


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# THE REST OF THIS FORM IS FOR INTERNAL USE
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Observation summary: 
	 Take a 500 s lamp G140L, narrow (52x0.1) aperture lamp exposure with each of the HITM1, HITM2, and the LINE lamps. Also take G230LB, G430L, and G750L with the same three lamps to get a full spectrum of the lamp brightness. After evaluating the lamp ratios in the G140L setting, take a 1000 s E140H-1234 narrow (0.2x0.09) aperture lamp exposure with the three lamps.

Summary Table
Grat	Wav	Exptime		Lamp

G140L	1425	500		LINE
G140L	1425	500		HITM1
G140L	1425	500		HITM2

G750L	7751	500		LINE
G750L	7751	500		HITM1
G750L	7751	500		HITM2

G230LB	2375	500		LINE
G230LB	2375	500		HITM1
G230LB	2375	500		HITM2

G430L	4300	500		LINE
G430L	4300	500		HITM1
G430L	4300	500		HITM2
===== NOTE: for the exposures above we will use the 52x0.1 slit

After evaluating the lamp ratios in G140L do:
E140H   1234 	1000		LINE
E140H   1234 	1000		HITM1
E140H   1234 	1000		HITM2
NOTE: for these exposures use the 0.2x0.09 aperture



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

Target or lamp..........................: LINE
Type of Acquisition.....................: none-internal
Detector for observation................: FUV-MAMA
Operating mode .........................: ACCUM
Spectral Element........................: G140L
Aperture................................: 52x0.1
Central Wavelength......................: 1425
Exposure Time...........................: 500s 
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: n/a
BOP Predicted Global Count Rate for MAMA: n/a
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........:
Comments: (e.g. if monitoring, specify frequency) 

Target or lamp..........................: HITM1
Type of Acquisition.....................: none-internal
Detector for observation................: FUV-MAMA
Operating mode .........................: ACCUM
Spectral Element........................: G140L
Aperture................................: 52x0.1
Central Wavelength......................: 1425
Exposure Time...........................: 500s 
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: n/a
BOP Predicted Global Count Rate for MAMA: n/a
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........:
Comments: (e.g. if monitoring, specify frequency) 

Target or lamp..........................: HITM2
Type of Acquisition.....................: none-internal
Detector for observation................: FUV-MAMA
Operating mode .........................: ACCUM
Spectral Element........................: G140L
Aperture................................: 52x0.1
Central Wavelength......................: 1425
Exposure Time...........................: 500s 
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: n/a
BOP Predicted Global Count Rate for MAMA: n/a
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........:
Comments: (e.g. if monitoring, specify frequency) 

Target or lamp..........................: LINE
Type of Acquisition.....................: none-internal
Detector for observation................: CCD
Operating mode .........................: ACCUM
Spectral Element........................: G750L
Aperture................................: 52x0.1
Central Wavelength......................: 7751
Exposure Time...........................: 500s 
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: n/a
BOP Predicted Global Count Rate for MAMA: n/a
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........:
Comments: (e.g. if monitoring, specify frequency) 

Target or lamp..........................: HITM1
Type of Acquisition.....................: none-internal
Detector for observation................: CCD
Operating mode .........................: ACCUM
Spectral Element........................: G750L
Aperture................................: 52x0.1
Central Wavelength......................: 7751
Exposure Time...........................: 500s 
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: n/a
BOP Predicted Global Count Rate for MAMA: n/a
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........:
Comments: (e.g. if monitoring, specify frequency) 

Target or lamp..........................: HITM2
Type of Acquisition.....................: none-internal
Detector for observation................: CCD
Operating mode .........................: ACCUM
Spectral Element........................: G750L
Aperture................................: 52x0.1
Central Wavelength......................: 7751
Exposure Time...........................: 500s 
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: n/a
BOP Predicted Global Count Rate for MAMA: n/a
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........:
Comments: (e.g. if monitoring, specify frequency) 

Target or lamp..........................: LINE
Type of Acquisition.....................: none-internal
Detector for observation................: CCD
Operating mode .........................: ACCUM
Spectral Element........................: G230LB
Aperture................................: 52x0.1
Central Wavelength......................: 2375
Exposure Time...........................: 500s 
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: n/a
BOP Predicted Global Count Rate for MAMA: n/a
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........:
Comments: (e.g. if monitoring, specify frequency) 

Target or lamp..........................: HITM1
Type of Acquisition.....................: none-internal
Detector for observation................: CCD
Operating mode .........................: ACCUM
Spectral Element........................: G230LB
Aperture................................: 52x0.1
Central Wavelength......................: 2375
Exposure Time...........................: 500s 
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: n/a
BOP Predicted Global Count Rate for MAMA: n/a
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........:
Comments: (e.g. if monitoring, specify frequency) 

Target or lamp..........................: HITM2
Type of Acquisition.....................: none-internal
Detector for observation................: CCD
Operating mode .........................: ACCUM
Spectral Element........................: G230LB
Aperture................................: 52x0.1
Central Wavelength......................: 2375
Exposure Time...........................: 500s 
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: n/a
BOP Predicted Global Count Rate for MAMA: n/a
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........:
Comments: (e.g. if monitoring, specify frequency) 

Target or lamp..........................: LINE
Type of Acquisition.....................: none-internal
Detector for observation................: CCD
Operating mode .........................: ACCUM
Spectral Element........................: G430L
Aperture................................: 52x0.1
Central Wavelength......................: 4300
Exposure Time...........................: 500s 
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: n/a
BOP Predicted Global Count Rate for MAMA: n/a
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........:
Comments: (e.g. if monitoring, specify frequency) 

Target or lamp..........................: HITM1
Type of Acquisition.....................: none-internal
Detector for observation................: CCD
Operating mode .........................: ACCUM
Spectral Element........................: G430L
Aperture................................: 52x0.1
Central Wavelength......................: 4300
Exposure Time...........................: 500s 
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: n/a
BOP Predicted Global Count Rate for MAMA: n/a
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........:
Comments: (e.g. if monitoring, specify frequency) 

Target or lamp..........................: HITM2
Type of Acquisition.....................: none-internal
Detector for observation................: CCD
Operating mode .........................: ACCUM
Spectral Element........................: G430L
Aperture................................: 52x0.1
Central Wavelength......................: 4300
Exposure Time...........................: 500s 
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: n/a
BOP Predicted Global Count Rate for MAMA: n/a
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........:
Comments: (e.g. if monitoring, specify frequency) 

Target or lamp..........................: LINE
Type of Acquisition.....................: none-internal
Detector for observation................: FUV_MAMA
Operating mode .........................: ACCUM
Spectral Element........................: E140H
Aperture................................: 0.2x0.09
Central Wavelength......................: 1234
Exposure Time...........................: 1000s 
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: n/a
BOP Predicted Global Count Rate for MAMA: n/a
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........:
Comments: (e.g. if monitoring, specify frequency) 

Target or lamp..........................: HITM1
Type of Acquisition.....................: none-internal
Detector for observation................: FUV_MAMA
Operating mode .........................: ACCUM
Spectral Element........................: E140H
Aperture................................: 0.2x0.09
Central Wavelength......................: 1234
Exposure Time...........................: 1000s 
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: n/a
BOP Predicted Global Count Rate for MAMA: n/a
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........:
Comments: (e.g. if monitoring, specify frequency) 

Target or lamp..........................: HITM2
Type of Acquisition.....................: none-internal
Detector for observation................: FUV_MAMA
Operating mode .........................: ACCUM
Spectral Element........................: E140H
Aperture................................: 0.2x0.09
Central Wavelength......................: 1234
Exposure Time...........................: 1000s 
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: n/a
BOP Predicted Global Count Rate for MAMA: n/a
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........:
Comments: (e.g. if monitoring, specify frequency)