- 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