Next: ABCONV-Convert spectrum from Janskys into AB magnitudes
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Applications in detail
Subsections
- ABCONV-Convert spectrum from Janskys into AB magnitudes
- ABLINE-Interactive absorption line analysis
- ADJOIN-Append two spectra (strictly a merge by wavelength value)
- ALASIN-Read a spectrum in ALAS (Abs. Line Analysis System) format
- ALASOUT-Output a spectrum in ALAS (Abs. Line Analysis System) format
- APERTURE-Do simple minded aperture photometry on a series of frames
- ARC-Interactive manual arc line identification
- ARC2D-Calibrates distortions in 2D arc line data.
- ARCDISP-Fit polynomial dispersion curve.
- ARCGENDB-Convert list of laboratory values to feature data base.
- ARCIDENT-Auto-identify located features.
- ARCLOCAT-Locate line features in a set of spectra.
- ARCSDI-Corrects for arc line curvature
- ASCIN-Read a 1-D or N-D data set from an ASCII table.
- ASCOUT-Write an NDF to an ASCII table.
- BBODY-Calculate a black body spectrum.
- BCLEAN-Automatic removal of bad lines & cosmic rays from CCD data
- BFFT-Takes the reverse FFT of a complex data structure
- BSMULT-Atmospheric band removal using a B star calibration spectrum
- CADD-Add back fitted continuum
- CALDIV-Generate calibration spectrum from continuum standard spectra
- CCDLIN-Applies a linearity correction to AAO CCD data
- CCUR-After SPLOT, uses graphics cursor to indicate data values
- CDIST-S-distortion correction using SDIST results
- CENTERS-Generate file of object centroids from ICUR, IGCUR or IMPOS output
- CFIT-Generate a spectrum using the cursor
- CHANGED-Indicate fits invalidated due to "cleaning" of an image
- CLEAN-Interactive patching of bad lines, bad pixels in an image
- CLIP-Clip data above and below a pair of threshold values
- CMPLX2I-Extracts the imaginary part of a complex data structure
- CMPLX2M-Extracts the modulus of a complex data structure
- CMPLX2R-Extracts the real part of a complex data structure
- CMPLXADD-Add two complex structures
- CMPLXCONJ-Produce the complex conjugate of a complex structure
- CMPLXDIV-Divide two complex structures
- CMPLXFILT-Create a mid-pass filter for complex data
- CMPLXMULT-Multiply two complex structures
- CMPLXSUB-Subtract two complex structures
- COADD-Form the spectrum which is the mean of the rows in an image
- COLOUR-Set colour table for image display
- COMB-Corrects for S-distortion using continua
- COMBINE-Combine two spectra, adding with weights according to errors
- COPOBJ-Copy an HDS object
- CORREL-Correlate two or three data sets.
- COSBELL-Create data that goes to zero at the edges in a cosine bell
- COSREJ-Reject cosmic rays from a set of supposedly identical spectra
- CREOBJ-Create a data object or file
- CRIGAUSS-Creates a file with a profile of 1 to 5 gaussians
- CSCAN-Plot array of profiles from a 3D array
- CSET-Interactively set regions of a spectrum to a constant value
- CSPIKE-Create calibration spiketrum given spiketrum & standard spectrum
- CSUB-Subtracts a continuum from 2 dimensional data
- CUBE2LONG-Takes a longslit spectrum from a non-sorted TAURUS cube
- DELOBJ-Delete a data object or a file
- DVDPLOT-Plot the data in one file against the data in another
- ECHARC-Wavelength calibrate an echelle arc
- ECHFIND-Locate spectra in echelle data
- ECHMASK-Produce an extraction mask from an SDIST analysis
- ECHMERGE-Merge echelle spectra into a single long spectrum
- ECHSELECT-Interactive selection of sky and object spectra for an echelle
- EDITEXT-Edit the Specdre Extension.
- ELSPLOT-Produces a long (<3m) error bar plot of a spectrum
- EMLT-Fits gaussians to the strongest lines in a spectrum
- ERRCON-Converts percentage error values to absolute values
- ESPLOT-Produces an error bar plot of a spectrum
- EVALFIT-Evaluate fit results.
- EXAM-Display the contents/structure of data file
- EXTIN-Correct spectrum for atmospheric extinction
- EXTLIST-Adds non-contiguous lines of an image to form a spectrum
- EXTRACT-Adds contiguous lines of an image to form a spectrum
- FET321-Extracts a spectrum from 1 detector from etalon mode FIGS data
- FF-Flat field an image (uses Jon Tonry's algorithm)
- FFCROSS-Cross-correlate an image and a flat field (mainly IPCS data)
- FFT-Takes the forward FFT of a complex data structure
- FIB2CUBE-Arranges fibre output into 3-d data file
- FIBDISP-Fits 3D cubes and plots the results
- FIBSEP-Separate spectra in 2D array
- FIGHELP-Provide Figaro on-line help
- FIGINFO-Describes the contents of a Figaro data file
- FIGS321-Processes a FIGS data cube down to a single spectrum
- FIGS322-Processes a FIGS data cube down to an image
- FIGS422-Process a FIGS image-mode hypercube down to an image
- FIGS423-Process a FIGS image-mode hypercube down to a cube
- FIGS424-Sort a FIGS image-mode hypercube into wavelength order
- FIGSEE-Generate a seeing ripple spectrum from a FIGS spectrum
- FIGSFLUX-Flux calibrates a FIGS spectrum
- FILLCUBE-Copy one NDF into part of another.
- FINDSP-Locate fibre spectra in an image
- FITBB-Fit diluted Planck curves to a spectrum.
- FITCONT-Fits a Chebyshev polynomial to the continuum for 2D data
- FITGAUSS-Fit Gauss profiles to a spectrum.
- FITPOLY-Fit a polynomial to a spectrum.
- FITSET-Set the value of a FITS keyword
- FITSKEYS-List the FITS keywords in a data file
- FITTRI-Fit triangular profiles to a spectrum.
- FLAG2QUAL-Converts `flagged' values to produce a quality array
- FLAIRCOMP-Compresses a FLAIR frame to give a weight vector.
- FLAIREXT-Optimally extracts spectra from a FLAIR NDF to form a new NDF.
- FLCONV-Convert a spectrum in Janskys into one in Ergs/cm**2/s/A
- FOTO-Perform aperture photometry given CENTERS output
- FSCRUNCH-Rebin data with a disjoint wavelength coverage to a linear one
- FWCONV-General unit conversion for spectra
- GAUSS-Interactive fit of Gaussians to emission or absorption lines
- GOODVAR-Replace negative, zero and bad variance values
- GROW-Copy an N-dimensional cube into part of an (N+M)-dimensional one.
- GROWX-Performs reverse function to that of EXTRACT
- GROWXT-Copies an image into contiguous XT planes of a cube
- GROWXY-Copies an image into contiguous XY planes of a cube
- GROWY-Performs reverse function to that of YSTRACT
- GROWYT-Copies an image into contiguous YT planes of a cube
- GSPIKE-Generates a 'spiketrum' from a table of values
- HARD-Sets the file name for hard copy output
- HCROSS-Cross-correlate two spectra & get redshift and error
- HIMAGE-Creates greyscale plot of image
- HIST-Produce histogram of data value distribution in an image
- HOPT-Histogram optimization of an image
- I2CMPLX-Copies an array into the imaginary part of a complex structure
- IADD-Adds two images (or two spectra)
- IALOG-Takes the antilog of an image
- IARC-Given fit to single spectrum, fit all spectra in a 2-D arc
- ICADD-Adds a constant to an image
- ICDIV-Divides an image by a constant
- ICMULT-Multiplies an image by a constant
- ICONT-Produces a contour map of an image
- ICONV3-Convolve an image with a 3x3 convolution kernel
- ICOR16-Corrects 16 bit data from signed to unsigned range
- ICSET-Set a selected region of an image to a constant value
- ICSUB-Subtracts a constant from an image
- ICUR-Inspect an image with cursor
- IDEV-Set the device for image display
- IDIFF-Takes the 'differential' of an image
- IDIV-Divides two images (or two spectra)
- IGCONV-Convolve an image with a specified filter
- IGCUR-Use cursor to show X, Y and data values
- IGREY-Produces a grey-scale plot of an image
- ILIST-List the data in an image (or spectrum)
- ILOG-Takes the logarithm of an image
- IMAGE-Display an image
- IMPOS-read positions from a file into environment variables
- IMULT-Multiplies two images (or two spectra)
- INTERP-Interpolates points of a 'spiketrum' to form a spectrum
- IPLOTS-Plots successive cross-sections of an image, several to a page
- IPOWER-Raises an image to a specified power
- IRCONV-Converts data in Janskys to W/m**2/um
- IREVX-Reverse an image (or spectrum) in the X-direction
- IREVY-Reverse an image in the Y-direction
- IRFLAT-Generates a ripple spectrum from an IR spectrum
- IRFLUX-Flux calibrates an IR spectrum using a black-body model
- IROT90-Rotates an image through 90 degrees
- ISCAN-Displays cuts through an IMAGE
- ISCRUNCH-Rebin an image to linear wavelength scale given IARC results
- ISCRUNI-Like ISCRUNCH, but interpolates between two IARC result sets
- ISEDIT-Allows interactive editing of a 1-D or 2-D spectrum
- ISHIFT-Applies a linear X and a linear Y shift to an image
- ISMOOTH-2-D smooth of image using 9-point smoothing algorithm
- ISPLOT-Plots successive cross-sections through an image
- ISTAT-Provides some statistics about an image (max, min etc.)
- ISTRETCH-Stretches and shifts an image in X and Y.
- ISUB-Subtracts two images (or two spectra)
- ISUBSET-Produces a subset of an image
- ISUPER-Produces a superset of an image
- ISXADD-Adds a spectrum to each X direction X-section of an image
- ISXDIV-Divides a spectrum into each X direction x-section of an image
- ISXMUL-Multiplies each X direction image x-sect by a spectrum
- ISXSUB-Subtracts each X direction image x-sect from a spectrum
- ISYADD-Adds a spectrum to each Y direction x-section of an image
- ISYDIV-Divides a spectrum into each Y direction x-section of an image
- ISYMUL-Multiplies each Y direction image x-sect by a spectrum
- ISYSUB-Subtracts each Y direction image x-sect from a spectrum
- IXSMOOTH-Smooth in X-direction by gaussian convolution
- LINTERP-Interpolates between spiketrum points to form a spectrum
- LONGSLIT-Fits 2D longslit arrays and plots results
- LSPLOT-Hardcopy spectrum plot of specified size (up to 3 metres)
- LXSET-Set X array of spectrum/image to specified range
- LYSET-Set Y array of spectrum/image to specified range
- MASK-Generate a mask spectrum given a spectrum and a mask table
- MASKEXT-Extracts echelle orders using a mask created by ECHMASK
- MCFIT-Fit a continuum to a spectrum, given a mask spectrum
- MEDFILT-Applies a median filter to an image
- MEDFILTR-Applies a rectangular median filter to an image
- MEDSKY-Take the median of a number of images
- MOMENTS-Calculate moments of spectra in a cube.
- MOVIE-Browse through slices of a cube.
- MSPLOT-Plots a long spectrum as a series of separate plots
- NCSET-Set a region of a spectrum to a constant
- OFFDIST-Applies an offset to an SDIST fit
- OPTEXTRACT-Extracts a long-slit spectrum using Horne's algorithm
- OVERPF-Overlays a FINDSP fit on another image
- PEAK-Determines position of highest peak in a spectrum
- POLEXT-Extract fibre spectra from an image after a FINDSP analysis
- POLYSKY-Fits and subtracts sky from a long-slit spectrum
- PROFILE-Profiles a long-slit spectrum for use by OPTEXTRACT
- Q2BAD-Converts a datafile's quality into bad values
- QUAL2FLAG-Converts a quality array into `flagged' values
- R2CMPLX-Creates a complex data structure from a real data array
- RCGS2-Reads UKIRT CGS2 spectrum (also UKT9 and UKT6 CVF)
- RDFITS-Read file in AAO de facto 'Disk FITS' format
- RDIPSO-Read file in DIPSO/IUEDR/SPECTRUM format
- REMBAD-Removes pixels that have been flagged as bad from data
- RENOBJ-Change the name or location of an object within an HDS file
- RESAMP-Re-sample and average several spectra (was Specdre RESAMPLE).
- RESAMPLE-Rebin an image to different dimensions and/or orientation
- RESCALE-Rescale using user-defined upper and lower limits
- RETYPE-Changes the type of the main data array in a file
- ROTX-Rotate data along the X-axis
- SCLEAN-Interactive patching of images, especially SCUBA data.
- SCNSKY-Calculates a sky spectrum for a scanned CCD image
- SCROSS-Cross-correlate two spectra & get relative shift
- SCRUNCH-Rebin a spectrum to a linear wavelength range
- SDIST-Analyse an image containing spectra for S-distortion
- SETOBJ-Assign value to an HDS primitive
- SFIT-Fit a polynomial to a spectrum
- SKYLINER-Removes a sky spectrum normalised the 5577 [OI] line.
- SLICE-Takes a slice with arbitrary end points through an image
- SOFT-Sets the device/type for terminal graphics
- SPECCONT-Contour a two-dimensional cut.
- SPECGRID-Plot spectra on position grid.
- SPECPLOT-Plot a spectrum.
- SPFLUX-Applies a flux calibration spectrum to an observed spectrum
- SPIED-Interactive spiketrum editor
- SPIFIT-Fits a global polynomial to a spiketrum to form a spectrum
- SPLOT-Plots a spectrum
- SQRTERR-Generates an error array as Error = Square Root of (Data/Const)
- SUBSET-Take a subset of a data set.
- TABLE-List contents of a SPICA memory file
- TIPPEX-Modify individual pixel values with cursor
- TRIMFILE-Creates a copy of an HDS file without unused space
- VACHEL-Air to vacuum, and/or recession velocity wavelength conversion
- VIG-Corrects a 2D array for vignetting
- WDFITS-Writes an image out in the AAO de facto 'Disk FITS' format
- WDIPSO-Writes a file in DIPSO/IUEDR/SPECTRUM format
- XCADD-Adds a constant to the X data in a file
- XCDIV-Divides the X data in a file by a constant
- XCMULT-Multiplies the X data in a file by a constant
- XCOPI-Like XCOPY but interpolates X-data from 2 files
- XCOPY-Copy X-info (e.g. wavelengths) into a spectrum
- XCSUB-Subtracts a constant from the X data in a file
- XCUR-Uses cursor to delimit part of a spectrum
- XTPLANE-Adds XT planes of a data cube to form an image
- XTRACT-Average an N-dimensional cube into an (N-M)-dimensional one.
- XYPLANE-Adds XY planes of a data cube to form an image
- YCADD-Adds a constant to the Y data in a file
- YCDIV-Divides the Y data in a file by a constant
- YCMULT-Multiplies the Y data in a file by a constant
- YCSUB-Subtracts a constant from the Y data in a file
- YSTRACT-Adds contiguous columns of an image to form a spectrum
- YTPLANE-Adds contiguous YT planes of a data cube to form an image
Next: ABCONV-Convert spectrum from Janskys into AB magnitudes
Up: FIGARO A general data reduction system
Previous: Y
FIGARO A general data reduction system
Starlink User Note 86
Keith Shortridge, Horst Meyerdierks,
Malcolm Currie, Martin Clayton, Jon Lockley,
Anne Charles, Clive Davenhall,
Mark Taylor, Tim Ash, Tim Wilkins, Dave Axon,
John Palmer, Anthony Holloway and
Vito Graffagnino
2004 February 17
E-mail:starlink@jiscmail.ac.uk
Copyright © 2013 Science and Technology Facilities Council