Index

Annulus
Measuring azimuthal averages
ANNULUS: Compute a Radial
Aperture photometry
APER: Aperture Photometry of | APERSTAR: Measure Brightnesses by
printing results
PRINT: Print Data Files,
Arithmetic
Evaluating expressions
TYPE: Evaluate/Print Arithmetic Expressions
Expressions
Arithmetic Expressions in VISTA
ASCII files
Closing
CLOSE: Close an Open
Execute on end of file
EOF: Execute On End-Of-File
Opening for reading
OPEN: Open an ASCII
Reading
READ: Read the Next
Rewinding
REWIND: Rewind an Open
Skipping selected lines
SKIP: Mark Selected Lines
Statistics and line count
STAT: Compute Statistics of
Substituting file line into command line
READ: Read the Next
Blink comparison
Loading the images
TV: Display an Image
Box
Defining
BOX: Define a Box
Display boundaries on TV
TVBOX: Draw a Box
Statistics of image or spectrum in
ABX: Analyze Pixel Statistics
Brightnesses of stars
Introduction
Stellar Photometry
Buffer
VISTA Basics
Buffers
List of images in
BUFFERS: List the Contents
Centroid
Finding centroid of object in.
AXES: Compute the Centroid
Clear screen
CLEAR: Clear the Terminal
Color map
Defined
Introduction to the X11
Loading
COLOR: Load a Color
Make new map
COLOR: Load a Color
Column
Interpolate across columns
INTERP: Interpolate Across Rows,
Column Numbering
VISTA Basics
Command Abbreviation
Abbreviating VISTA Commands
Command,Edit last command
EDIT: Editing the Last
Commands
Keywords
VISTA Command Syntax
Show list of recent commands
HISTORY: Recall the Last
Syntax
VISTA Command Syntax
Types
VISTA Command Syntax
Commands, Useful commands for the beginner
Useful Commands for the
Commands,Defining synonyms
ALIAS/UNALIAS: Define/Delete Command Aliases
Commands,Extending a command
Extending Commands Past One
Commands,Removing synonyms
ALIAS/UNALIAS: Define/Delete Command Aliases
Commands,Repeat previous command
%: Repeating/Editing a Previous
Compress
an image
BIN: Compress (bin) an
Control-C
To halt procedure
PAUSE: Pause Procedure Execution
Coordinates
Defining the observing site Latitude and Longitude
SETUP: Set the Longitude
DAOPHOT
DAOPHOT: A Stellar Photometry
Data
Getting data file
GET/SAVE: Get/Save a VISTA
Introduction to non-image data files
Non-Image Data Files used
Printing
PRINT: Print Data Files,
Saving data file
GET/SAVE: Get/Save a VISTA
Data Files
VISTA Basics
Data,Printing in file
Output Redirection
Data,Printing on lineprinter
Output Redirection
Directories
Set default directories
SETDIR: Set the VISTA | SETDIR: Set the VISTA
Directories,Specifying directories for images, etc.
VISTA and Disk Files
Disk
Read image or spectrum from
RD: Read an Image
Read procedure from
RP: Read a Procedure
Write image or spectrum to
WD: Write an Image
Write procedure to
WP: Write a Procedure
Display
Embed permanent text on an image
TEXT: Embed Permanent Text
Interactive commands
Introduction to the X11
Marking image with graphics and text
TVPLOT: Draw Text and
Marking pixels
Introduction to the X11
Overview
Introduction to the X11
Scroll color map
Introduction to the X11
X11 Image Display Window
Introduction to the X11
X11 Resource Variables
Introduction to the X11
Zooming and panning
Introduction to the X11
Display, Specifying graphics terminal type
TERM: Specify or Change
Echelle
Produce spectrum
EXTSPEC: Copy an Order
Wavelength calibration
EWAVE: Wavelength Calibrate an
Extensions
Set default for files
SETDIR: Set the VISTA | SETDIR: Set the VISTA
Files
Default directories and extensions
SETDIR: Set the VISTA | SETDIR: Set the VISTA
Print current file directories
PRINT: Print Data Files,
FITS header
Loading cards into strings
Substituting String Variables into
Flexure
Removing effects of from spectrum
SKYLINE: Re-Calibrate Wavelengths Using
Functions
List of arithmetic functions
Arithmetic Expressions in VISTA
Help, List recent changes to program or other news
VISTA News
Image
VISTA Basics
Add image and constant
ADD, SUBTRACT, MULTIPLY, and
Add two images
ADD, SUBTRACT, MULTIPLY, and
Arctangent
ARCTAN: Arctangent of an
Background level
SKY: Compute the Modal
Baseline correction
BL: Correct an Image
Centroid of object in
AXES: Compute the Centroid
Change object name
CHANGE: Change the Object
Column display
PLOT: Plot a Row
Combination of several images
PICCRS: Optimally Combine Frames
Compress
BIN: Compress (bin) an
Copy
COPY: Copy an Image
Cropping
WINDOW: Window (Crop) an
Cross-correlation
CROSS: Cross-Correlate Images or
Delete from buffer
DISPOSE: Clear (Delete) an
Delete/Remove a FITS header card
UNFIT: Delete a FITS
Display in TV
TV: Display an Image
Divide image by constant
ADD, SUBTRACT, MULTIPLY, and
Divide two images
ADD, SUBTRACT, MULTIPLY, and
Edit a FITS header card
FITS: Insert/Edit a FITS
Edit FITS header
HEDIT: Edit FITS Headers
Exponentiation
EXP: Exponentiate an Image
Fit spline to rows or columns
SPLINE: Replace Image or
Fix buggy FITS headers
FIXHEAD: Fix FITS Headers
Fix FITS header coordinate cards
FIXHEAD: Fix FITS Headers
Fixing Bad pixels
CLIP: Replace Pixels Outside
Flattening
BL: Correct an Image
Hardcopy display
IMPOST: Make a PostScript
Header
BUFFERS: List the Contents
High pixel
ABX: Analyze Pixel Statistics
Image Registration
REGISTAR: Register Images Using
Insert a FITS header card
FITS: Insert/Edit a FITS
Logarithm
LOG: Base-10 Logarithm of | LN: Natural Logarithm of
Low pixel
ABX: Analyze Pixel Statistics
Make smaller
WINDOW: Window (Crop) an
Mean
MN: Compute the Mean | ABX: Analyze Pixel Statistics
Median filter
ZAP: Non-Interactive Image Median
Median of several images
MEDIAN: Compute Median of | BIGMEDIAN: Compute Median of
Merging
MERGE: Merge Overlapping Images
Multiply image by constant
ADD, SUBTRACT, MULTIPLY, and
Multiply two images
ADD, SUBTRACT, MULTIPLY, and
Print headers of disk images
PRINT: Print Data Files,
Print pixel values in
PRINT: Print Data Files,
Produce from spectrum
STRETCH: Stretch a Spectrum
Read from disk
RD: Read an Image
Replace by best surface fit
SURFACE: Fit a Plane
Reverse rows or columns
FLIP: Change the Orientation
Rotate
ROTATE: Rotate an Image
Row display
PLOT: Plot a Row
Set default directory
SETDIR: Set the VISTA | SETDIR: Set the VISTA
Shift
SHIFT: Shift an Image
Shifts and Pixel scale - transforming and distortions.
ALIGN: Linearize or Transform
Smoothing
SMOOTH: Smooth an Image
Square root
SQRT: Square Root of
Standard deviation
ABX: Analyze Pixel Statistics
Statistics in selected regions
ABX: Analyze Pixel Statistics
Subtract constant from image
ADD, SUBTRACT, MULTIPLY, and
Subtract two images
ADD, SUBTRACT, MULTIPLY, and
Surface fit
SURFACE: Fit a Plane
Tangent
TAN: Tangent of an
Windowing
WINDOW: Window (Crop) an
Write to disk
WD: Write an Image
Image Processing
VISTA Basics
Introduction, Useful commands for the beginner
Useful Commands for the
Jump
In procedures
GOTO: Jump to a
Keywords
Defined
VISTA Command Syntax
Latitude
Defining the observing site Latitude
SETUP: Set the Longitude
Entering latitude of observation
EXTINCT: Correct a Spectrum
Longitude
Defining the observing site Longitude
SETUP: Set the Longitude
Entering longitude of observation
EXTINCT: Correct a Spectrum
Mask
Interpolate across masked pixels
INTERP: Interpolate Across Rows,
Median
of several images
MEDIAN: Compute Median of | BIGMEDIAN: Compute Median of
Name
Change name of object image
CHANGE: Change the Object
Output Redirection Mechanism
Output Redirection
Pausing
During procedure
PAUSE: Pause Procedure Execution
Photometry
Artificial Images
PHOTONS: Add Artificial Stars
Artificial Stars
PHOTONS: Add Artificial Stars
Coordinates of stars
COORDS: Compute Celestial Coordinates
DAOPHOT
DAOPHOT: A Stellar Photometry
Entering data
MODPHOT: Modify Entries in
Locating stars
AUTOMARK: Locate Stars Automatically | MARKSTAR: Locate Stars Interactively
Modifying files
MODPHOT: Modify Entries in
Printing results
PRINT: Print Data Files,
Photometry file
Details
Stellar Photometry
Pixel
Changing value
CLIP: Replace Pixels Outside
Eliminating negative
CLIP: Replace Pixels Outside
Examining value
ITV: Interact with the
Ignoring
MASK/UNMASK: Ignore (Mask) Specified
Mask
MASK/UNMASK: Ignore (Mask) Specified
Removing bad
ZAP: Non-Interactive Image Median
Removing bad pixels
TVZAP: Interactively Remove Pixels
Plot
contour
CONTOUR: Make Contour Maps
Procedure
Conditional branching
IF, ELSE_IF, ELSE, END_IF:
Debugging
VERIFY: Verify (Trace) Procedure
Defined
Introduction to Command Procedure
Defining
DEF: Define a Procedure
DO loops
DO/END_DO: Using Do-Loops in
Ending definition
END: End Procedure Execution | SAME: End Procedure Insertion
Ending execution
STOP: Stop Procedure Execution | END: End Procedure Execution
Execute
GO: Start Procedure Execution
Execute on end of file
EOF: Execute On End-Of-File
Execute on error
ERROR: Execute On Error
Introduction to
Introduction to Command Procedure
Jump to specified line
GOTO: Jump to a
Jump to subroutine
CALL: Call a Procedure
Line by line execution
VERIFY: Verify (Trace) Procedure
List
SHOW: Show the Current
Parameter Passing
PARAMETER: Pass Arguments to
Pausing during
PAUSE: Pause Procedure Execution
Print
SHOW: Show the Current
Read from disk
RP: Read a Procedure
Repeating segments of
DO/END_DO: Using Do-Loops in
Return from subroutine
RETURN: Return from a
Run
GO: Start Procedure Execution
Startup procedure
Introduction to Command Procedure
Subroutine
CALL: Call a Procedure
Write to Disk
WP: Write a Procedure
Procedure,Startup procedure
VISTA and Disk Files
Procedures
Set default directory
SETDIR: Set the VISTA | SETDIR: Set the VISTA
Profile
Measuring profile
PROFILE: Compute Surface Brightness
Printing results
PRINT: Print Data Files,
Reconstruct object from surface profile
RECON: Reconstruct an Image
Row
Interpolate across rows
INTERP: Interpolate Across Rows,
Row Numbering
VISTA Basics
Spectra
Set default directory
SETDIR: Set the VISTA | SETDIR: Set the VISTA
Spectrum
VISTA Basics
Change object name
CHANGE: Change the Object
Copy
COPY: Copy an Image
Defining flux curve
FLUXSTAR: Compute Flux Curves
Delete from buffer
DISPOSE: Clear (Delete) an
Delete/Remove a FITS header card
UNFIT: Delete a FITS
Edit a FITS header card
FITS: Insert/Edit a FITS
Edit FITS header
HEDIT: Edit FITS Headers
Extinction correction
EXTINCT: Correct a Spectrum
Extract curved spectrum
SPECTROID: Map the Location
Extract from image
MASH: Extract a Spectrum
Extraction by summation of rows/columns
MASH: Extract a Spectrum
Fit polynomial to
POLY: Fit a Polynomial
Fit spline to
SPLINE: Replace Image or
Flux calibration
FLUX: Flux Calibrate a
Header
BUFFERS: List the Contents
Identify lines
LINEID: Identify Lines in
Insert a FITS header card
FITS: Insert/Edit a FITS
Interactive spline fit to
ISPLINE: Interactively Fit a
Make an image out of
STRETCH: Stretch a Spectrum
Map location of
SPECTROID: Map the Location | FINDPEAK: Find the Location
Merging
MERGE: Merge Overlapping Images
Optimal extraction
EXTRACT: Optimal Spectrum Extraction
Plot
PLOT: Plot a Row
Print headers of disk spectra
PRINT: Print Data Files,
Print line identifications
PRINT: Print Data Files,
Print values in
PRINT: Print Data Files,
Print wavelength scale
PRINT: Print Data Files,
Read from disk
RD: Read an Image
Wavelength Re-calibration
SKYLINE: Re-Calibrate Wavelengths Using
Wavelength scale
WSCALE: Compute Wavelength Scale
Wavelength scale - copying
COPW: Copy a Wavelength
Wavelength scale - transforming
ALIGN: Linearize or Transform
Write to disk
WD: Write an Image
Stars
Aperture photometry
APERSTAR: Measure Brightnesses by
Coordinates
COORDS: Compute Celestial Coordinates
Locating on frame
AUTOMARK: Locate Stars Automatically | MARKSTAR: Locate Stars Interactively
Positions
COORDS: Compute Celestial Coordinates
Stopping VISTA
QUIT: Stopping VISTA
Strings
Loading strings with FITS header cards..
Substituting String Variables into
Print defined strings
PRINT: Print Data Files,
Printing string variables
Substituting String Variables into
Substituting data file line into command line
READ: Read the Next
Substituting string variables into command line
Substituting String Variables into
Subroutine
Calling
CALL: Call a Procedure
Surface Photometry
Deproject spirals or elliptical images
ROUND: Deproject Spirals or
Extract a cut along any PA
CUT: Extract a Brightness
Least-squares Profile fitting
SNUC: Surface Photometry of
Photometry of Multiple-Galaxy Systems
SNUC: Surface Photometry of
Rebuilding Galaxy from SNUC
RENUC: Reconstruct Galaxies from
Reconstruct galaxy from PROFILE
EGAL: Reconstruct a Galaxy
Reconstruct Multiple Galaxy Systems
RENUC: Reconstruct Galaxies from
Star clusters or complex objects
SECTOR: Surface Photometry of
Surface Profile
by azimuthal averaging along defined annuli
ANNULUS: Compute a Radial
by fitting elliptical contours
PROFILE: Compute Surface Brightness
Synonyms,Defining or deleting synonyms for commands
ALIAS/UNALIAS: Define/Delete Command Aliases
Television
Display box on
TVBOX: Draw a Box
Interacting with image in
ITV: Interact with the
Load image in
TV: Display an Image
Loading color map
TV: Display an Image
Template
Generating model galaxy image
TEMPLATE: Generate an Image
Terminal
Clear screen
CLEAR: Clear the Terminal
Terminal, Specifying default graphics terminal type
TERM: Specify or Change
TV
Loading color map
COLOR: Load a Color
Use cursor to select bad pixels
TVZAP: Interactively Remove Pixels
Variable
Display value with format
PRINTF: Formatted Display of
Displaying value
TYPE: Evaluate/Print Arithmetic Expressions
Setting value of
SET: Define a VISTA
Specify buffer numbers with
Using Variables to Specify
variables
Variables, Arithmetic Expressions, &
Defining string variables
STRING: Defining VISTA String
Virtual memory
Define
DISPOSE: Clear (Delete) an
What to do when not enough
DISPOSE: Clear (Delete) an
VISTA,Running VISTA
Running VISTA
VISTA,Stop
QUIT: Stopping VISTA
Wavelength scale
Echelle data
EWAVE: Wavelength Calibrate an
For spectrum - copying
COPW: Copy a Wavelength
For spectrum - producing
WSCALE: Compute Wavelength Scale
For spectrum - transforming
ALIGN: Linearize or Transform
Identify lines for
LINEID: Identify Lines in
WFPC
Simulate or fix WFPC A-D conversion errors
ATODSIM/ATODFIX: Simulate/Fix WF/PC1 A/D
Zap
Remove bad pixels interactively
TVZAP: Interactively Remove Pixels