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JWST's ISIM ASIC Tuning Template, available in the Astronomer’s Proposal Tool (APT), is used to execute onboard ASIC tuning studies with a user-specified configuration file for either FGS, NIRCam, NIRISS or NIRSpec (MIRI does not have any ASICs).

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The ISIM ASIC Tuning template is to be used by the Commanding Team to execute onboard ASIC tuning studies with a user-specified configuration file for either FGS, NIRCam, NIRISS or NIRSpec (MIRI does not have any ASICs).

ISIM ASIC Tuning observation(s) may be scheduled with a parallel SI or in parallel with other ASIC tuning observation(s), except for NIRCam ASIC Tuning, which must be scheduled as a prime visit and no parallel SI operation (TBD). Note that there is mechanism motion by the user-specified SI during the ASIC tuning visit and that OSS will prevent mechanism motion from occurring during a parallel SI exposure.

In addition to the following template parameters, this template will have the Special Requirements NO PARALLEL and REQUIRED  added by default.

The following parameters are used to define ISIM ASIC Tuning observations.

FieldDetailsValueNotes
General Information
Observation Numberassign observation numbernumber
Observation Labelprovide observation labeltext
Observation Commentsprovide observation commentstext
Target Namedefault valueNONE
Special Requirementsspecify special requirementschoose from listif needed
Template specific information
Science Instrumentselect a science instrumentchoose from list
ASIC Tuning File Namespecify an ASIC tunng file nametext
Data Volumespecify a data volumenumberMebibytes (MiB)
ASIC Tuning Durationspecify an ASIC tuning durationnumberhours

General Information  

The following parameters are generic to all templates, and are not discussed in this article:  Observation Number,  Observation Label, Observations Comments, Target Name, and Special Requirements.

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ScienceInstrument
ScienceInstrument
Science Instrument

SCIENCE INSTRUMENT [INSTRUMENT] = FGS1, FGS2, NIRCAM, NIRISS, NIRSPEC

This field specifies the science instrument configured by ASIC Tuning file. This field is used for scheduling purposes only.

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ASICTuningFileName
ASICTuningFileName
ASIC Tuning File Name

This parameter is used to specify the ASIC tuning FILE NAME [FILE_NAME] with extension (e.g. NRCCMB_003.atu). Note that OPGS will automatically prefix "ram:/" to the filename when generating the visit file.

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DataVolume
DataVolume
Data Volume

This parameter specifies the DATA VOLUME [DATA_VOLUME_MIB] generated by the ASIC tuning file in Mebibytes (10242 bytes).

Note to developer: This value is a non-negative integer with no default or upper limit. The label for the field should be MiB.

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ASICTuningDuration
ASICTuningDuration
ASIC Tuning Duration

This parameter specifies the DURATION [DURATION], in hours, needed to execute the ASIC Tuning visit.

Note to developers: This value is a positive real number with no upper limit.
Note to developers: APT should automatically set Target to NONE.
Note for developers: The database visit table values should be:
internal_target = 'Y'
external_target = 'N'
pcs_mode = 'NONE'
schedule_as_parallel = 'N' (TBD)
parallels_allowed = 'N' (TBD)
realtime = 'N'
required = 'Y' -> Special Requirement
science_duration = duration specified by user
overhead_duration = 0
scheduling_duration = duration specified by user
charged_duration = duration specified by user
(All other duration fields in the "visit" relation = 0)

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ChangeLog
ChangeLog
Change log

Expand

Version 3 (April 19, 2019)

  1. Editorial change (moved change log to main article)


Version 2 (October 2, 2018)

  1.  PR 90477 - added FGS1, FGS2 to Science Instrument parameter.


Version 1 (May 22, 2017)

  1. This is the converted Word File from Chapter 71.
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ISIM Dictionary File Update Template Parameters

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Keywords

JWST ISIM ASIC Tuning template

JWST ISIM ASIC Tuning template parameters

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Format definitions

Boldface italics type indicates the name of an APT parameter or a value for a parameter.

Brown text indicates notes for the developers.

Green text indicates the name of the parameter used by Commanding.

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