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STIS Cycle-20 Calibration Phase-1 Template

Last Revised: Sept. 27, 2012
Proposal ID: 13143
Title: MAMA Spectroscopic Dispersion Solution
PI: P. Sonnentrucker
Co-I(s): C. Proffitt

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# Orbit estimates are TOTAL for all of cycle-20; assume 52 weeks)

Total Prime Orbits: 0
External Parallel Orbits: 0
Internals or no-impact orbits: 7
Comments on orbit estimate: Annual 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 constrain the wavelength dispersion solutions

Description: Internal wavecals will be obtained at primary and secondary central
wavelengths chosen to cover Cycle 20 use. There is also overlap with choices
of configurations used with previous calibration programs which will enable
long-term monitoring. This program uses the LINE lamp for a total of approximately
1.5 hours, typically at a lamp current of 10 mA.

Accuracy: 0.1 pixel

Comments on Accuracy: Internal wavelength precision that should be achieved in
calibration exposures.

Products: Accuracy of the existing MAMA dispersion (_dsp) reference file
will assessed and described in the Cycle 20 calibration close-out report.
If necessary, a new reference file will be created and delivered along with a
supporting Instrument Science Report.



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# Link to Cycle 20 Science

Fraction of science programs supported by this calibration:
77% of STIS total exposure time.

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:
why: Calibrations can be applied after the observations



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# THE REST OF THIS FORM IS FOR INTERNAL USE
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Observation summary: Wavecals will be obtained for a selected number of
central wavelengths of the 8 gratings (E140H, E140M, G140M, G140L, E230H, E230M, G230M, G230L)
used with the MAMA detectors (FUV-MAMA,NUV-MAMA). For all exposures, TARGET=NONE and LAMP=LINE is used.
Different apertures are used with each grating.



Below is a summary table with information about each grating (column 1), central wavelength
(column 2), aperture (column 3), and time (column 4).

Grat Wave Aperture Time
E140M 1425 0.2x0.06 620.
E140H 1271 0.2x0.09 400.

E140H 1343 0.2x0.09 550.
E140H 1598 0.2x0.09 400.5

E230M 1978 0.2x0.06 190.3
E230M 2415 0.2x0.06 135.
E230M 2561 0.2x0.06 120.
E230M 2707 0.2x0.06 87.2

E230H 1763 0.1x0.09 800.
E230H 2713 0.1x0.09 500.

G140M 1218 52x0.1 450.
G140M 1640 52x0.1 100.
G140L 1425 52x0.1 140.

G230M 1687 52x0.1 310.
G230M 3055 52x0.1 22.

G230L 2376 52x0.049 47.6

E230H 1963 0.1x0.09 800.


Comments: 1/year

# 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..........................: NONE
Type of Acquisition.....................: none - internal
Detector for observation................: FUV-MAMA
Operating mode .........................: ACCUM
Spectral Element........................: E140M
Aperture................................: 0.2x0.06
Central Wavelength......................: 1425
Exposure Time...........................: 620. S
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: (see table from IDT)
BOP Predicted Global Count Rate for MAMA: (see table from IDT)
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........: LAMP=LINE
Comments: (e.g. if monitoring, specify frequency)

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


Target or lamp..........................: NONE
Type of Acquisition.....................: none - internal
Detector for observation................: NUV-MAMA
Operating mode .........................: ACCUM
Spectral Element........................: E230M
Aperture................................: 0.2x0.06
Central Wavelength......................: various (see table above)
Exposure Time...........................: various (see table above)
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: (see table from IDT)
BOP Predicted Global Count Rate for MAMA: (see table from IDT)
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........: LAMP=LINE
Comments: (e.g. if monitoring, specify frequency)

Target or lamp..........................: NONE
Type of Acquisition.....................: none - internal
Detector for observation................: FUV-MAMA
Operating mode .........................: ACCUM
Spectral Element........................: G140M
Aperture................................: 52x0.1
Central Wavelength......................: various (see above)
Exposure Time...........................: various (see table above)
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: (see table from IDT)
BOP Predicted Global Count Rate for MAMA: (see table from IDT)
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........: LAMP=LINE
Comments: (e.g. if monitoring, specify frequency)

Target or lamp..........................: NONE
Type of Acquisition.....................: none - internal
Detector for observation................: FUV-MAMA
Operating mode .........................: ACCUM
Spectral Element........................: G140L
Aperture................................: 52x0.1
Central Wavelength......................: 1425
Exposure Time...........................: 140
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: (see table from IDT)
BOP Predicted Global Count Rate for MAMA: (see table from IDT)
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........: LAMP=LINE
Comments: (e.g. if monitoring, specify frequency)

Target or lamp..........................: NONE
Type of Acquisition.....................: none - internal
Detector for observation................: NUV-MAMA
Operating mode .........................: ACCUM
Spectral Element........................: E230H
Aperture................................: 0.1x0.09
Central Wavelength......................: various(see table above)
Exposure Time...........................: various (see table above)
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: (see table from IDT)
BOP Predicted Global Count Rate for MAMA: (see table from IDT)
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........: LAMP=LINE
Comments: (e.g. if monitoring, specify frequency)

Target or lamp..........................: NONE
Type of Acquisition.....................: none - internal
Detector for observation................: NUV-MAMA
Operating mode .........................: ACCUM
Spectral Element........................: G230M
Aperture................................: 52x0.1
Central Wavelength......................: various (see supported)
Exposure Time...........................: various (see table above)
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: (see table from IDT)
BOP Predicted Global Count Rate for MAMA: (see table from IDT)
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........: LAMP=LINE
Comments: (e.g. if monitoring, specify frequency)

Target or lamp..........................: NONE
Type of Acquisition.....................: none - internal
Detector for observation................: NUV-MAMA
Operating mode .........................: ACCUM
Spectral Element........................: G230L
Aperture................................: 52x0.05
Central Wavelength......................: 2376
Exposure Time...........................: 47.9
Number of Iterations ...................: 1
BOP Predicted Local Count Rate for MAMA.: (see table from IDT)
BOP Predicted Global Count Rate for MAMA: (see table from IDT)
ETC PID IDs for Count Rates.............: n/a
Special Requirements or options.........: LAMP=LINE
Comments: (e.g. if monitoring, specify frequency)

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# Special needs of this proposal?

Scheduling:

Prerequisites: none

PDB update? N
On-board table update? N

# 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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# Analysis Plan

Expected FTE weeks for analysis: 4 weeks
Required turnaround on analysis (weeks): not critical
Data volume (Mb needed for analysis): 300Mb
Special software needed for analysis? (Describe): Custom IDL software may be needed to create
new dispersion (_dsp) reference files.


Description of analysis Plans: Raw wavecal images will be self-calibrated using
Calstis software. Existing wavelength solutions will be tested with available software within IRAF.