-- IMEXAMINE COMMANDS -- CURSOR KEY COMMAND SUMMARY ? Help h Histogram p Previous frame x Coordinates a Aperture Sum i Image cursor q Quit y Set origin b Box coords j Line gauss fit r Radial plot z Print grid c Column plot k Col gauss fit s Surface plot , Quick phot d Load display l Line plot t Output image . Quick prof fit e Contour plot m Statistics u Vector plot f Redraw n Next frame v Vector plot g Graphics cursor o Overplot w Toggle logfile COLON COMMAND SUMMARY allframes ceiling iterations naverage pointmode width angh center label nbins radius x angv constant logfile ncolumns round xformat autoredraw dashpat logx ncontours rplot xlabel autoscale defkey logy ncoutput select xorder background eparam magzero ncstat szmarker y banner fill majrx nhi ticklabel yformat beta fitplot majry nlines title ylabel boundary fittype marker nloutput top_closed yorder box floor minrx nlstat unlearn z1,z2 buffer interval minry output wcs zero OUTPUT OF 'a' AND 'r' KEYS The 'a' key and logfile output has column labels and each object has one line of measurements in the logfile and two lines on the terminal. The 'r' key shows only the second line on the status line and the information from the first line is in the graph title. The first line contains the x and y center coordinates and optional world coordinates. The second line contains the aperture magnitude and flux, the estimated background sky, the profile fit peak, the ellipticity and position angle from the moment analysis, and four estimates of the profile width. The four estimates are from the moment analysis, the full-width enclosing half the flux, the profile fit, and a direct estimate of the full width at half-maximum. CURSOR KEY COMMANDS ? Print help a Aperture radial photometry measurement (see above for output) b Box coordinates for two cursor positions - c1 c2 l1 l2 c Column plot d Load the image display e Contour plot f Redraw the last graph g Graphics cursor h Histogram plot i Image cursor j Fit 1D gaussian to image lines k Fit 1D gaussian to image columns l Line plot m Statistics image[section] npixels mean median stddev min max n Next frame or image o Overplot p Previous frame or image q Quit r Radial profile plot (see above for output) s Surface plot t Output image centered on cursor (parameters output, ncoutput, nloutput) u Centered vector plot from two cursor positions v Vector plot between two cursor positions w Toggle write to logfile x Print coordinates col line pixval [xorign yorigin dx dy r theta] y Set origin for relative positions z Print grid of pixel values - 10 x 10 grid , Quick profile photometry measurement (Gaussian or Moffat) . Quick radial profile plot and fit (Gaussian or Moffat) COLON COMMANDS Explicit image coordinates may be entered using the colon command syntax: :column line key where column and line are the image coordinates and the key is one of the cursor keys. A special syntax for line or column plots is also available as :c# or :l# where # is a column or line and no space is allowed. Other colon commands set or show parameters governing the plots and other features of the task. Each graph type has it's own set of parameters. When a parameter applies to more than one graph the current graph is assumed. If the current graph is not applicable then a warning is given. The "eparam" and "unlearn" commands may be used to change many parameters and without an argument the current graph parameters are modified while with the graph key as an argument the appropriate parameter set is modified. In the list below the graph key(s) to which a parameter applies are shown. allframes Cycle through all display frames to display images angh s Horizontal angle for surface plot angv s Vertical angle for surface plot autoredraw cehlrsuv. Automatically redraw graph after colon command? autoscale h Adjust number of histogram bins to avoid aliasing axes s Draw axes in surface plot? background jkr. Subtract background for radial plot and photometry? banner cehjklrsuv. Include standard banner on plots? beta ar Moffat beta parameter (INDEF to fit or value to fix) boundary uv Boundary extension type for vector plots box cehjklruv. Draw box around graph? buffer r. Buffer distance for background subtraction ceiling es Data ceiling for contour and surface plots center jkr. Find center for radial plot and photometry? constant uv Constant value for boundry extension in vector plots dashpat e Dash pattern for contour plot eparam cehjklrsuv. Edit parameters fill e Fill viewport vs enforce unity aspect ratio? fitplot r Overplot profile fit on data? fittype ar Profile fitting type (gaussian|moffat) floor es Data floor for contour and surface plots interval e Contour interval (0 for default) iterations ar Iterations on fitting radius label e Draw axis labels for contour plot? logfile Log file name logx chjklruv. Plot x axis logrithmically? logy chjklruv. Plot y axis logrithmically? magzero r. Magnitude zero for photometry majrx cehjklruv. Number of major tick marks on x axis majry cehjklruv. Number of major tick marks on y axis marker chjklruv. Marker type for graph minrx cehjklruv. Number of minor tick marks on x axis minry cehjklruv. Number of minor tick marks on y axis naverage cjkluv Number of columns, lines, vectors to average nbins h Number of histogram bins ncolumns ehs Number of columns in contour, histogram, or surface plot ncontours e Number of contours (0 for default) ncoutput Number of columns in output image ncstat Number of columns in statistics box nhi e hi/low marking option for contours nlines ehs Number of lines in contour, histogram, or surface plot nloutput Number of lines in output image nlstat Number of lines in statistics box output Output image root name pointmode chjkluv Plot points instead of lines? radius r. Radius of object aperture for radial plot and photmetry round cehjklruv. Round axes to nice values? rplot jkr. Radius to plot in 1D and radial profile plots select Select image or display frame sigma jk Initial sigma for 1D gaussian fits szmarker chjklruv. Size of marks for point mode ticklabels cehjklruv. Label ticks? title cehjklrsuv. Optional title for graph top_closed h Close last bin of histogram unlearn cehjklrsuv. Unlearn parameters to default values wcs World coordinate system for axis labels and readback width jkr. Width of background region x [min max] chjklruv. Range of x to be plotted (no values for autoscaling) xformat Coordinate format for column world coordinates xlabel cehjklrsuv. Optional label for x axis xorder jkr. X order of surface for background subtraction y [min max] chjklruv. Range of y to be plotted (no values for autoscaling) yformat Coordinate format for line world coordinates ylabel cehjklrsuv. Optional label for y axis yorder r. Y order of surface for background subtraction z1 h Lower intensity value limit of histogram z2 h Upper intensity value limit of histogram zero e Zero level for contour plot