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Last modified: Tue Jan 18 02:08:43 2000.
NAME: locate_issa PURPOSE: locate the nearest ISSA image from input ra, dec CATEGORY: ISSA CALLING SEQUENCE: files=locate_issa(ra,dec[,band=band][,closest=]) INPUTS: ra,dec : ra,dec to be searched for (degrees) OPTIONAL INPUTS: Band = IRAS band for which the filenames have to be returned (1=12 mic to 4=100 mic) closest= number of files to be returned (in order of increasing distance from ra,dec xcat_file = .xcat ascii file containing the ISSA data hierarchy. Must be in !jpblib_issa_dir OUTPUTS: files = list of filenames OPTIONAL OUTPUTS: None COMMON BLOCKS: None SIDE EFFECTS: Uses an Xcatscan-like file in !jpblib_issa_dir RESTRICTIONS: Must have read permission PROCEDURE: Uses read_xcat.pro gcirc.pro EXAMPLE: ra=ten(16.,24,0)/24.*360. & dec=ten(-10.,0.,0.) file=locate_issa(ra,dec,band=4,closest=2) d=readfits(file(0),h) image_cont20,d,h,/square MODIFICATION HISTORY: Created Oct 30 1997 by J.Ph. Bernard IAS Modified June 2 1998 for MacOS JPB Modified June 30 1999 to include keyword xcat_file and allow arrays of ra and dec.
(See MacintoshHD:IDL Libraries:JPBlib:ISSA:locate_issa.pro)
NAME: make_issa_cat PURPOSE: Generates a catalog of positions for all ISSA plates to be used by locate_issa.pro CATEGORY: ISSA CALLING SEQUENCE: make_issa_cat[,/cd] INPUTS: None OPTIONAL INPUTS: cd = name for a CD where to look for ISSA files filename= name of the .xcat file to be created KEYWORD PARAMETERS: None OUTPUTS: None OPTIONAL OUTPUTS: None COMMON BLOCKS: None SIDE EFFECTS: Generates an Xcatscan-like file in !jpblib_issa_dir RESTRICTIONS: Must have write permission PROCEDURE: Uses write_xcat.pro EXAMPLE: MODIFICATION HISTORY: Created Oct 30 1997 by J.Ph. Bernard IAS June 2 1998, Modified for MacOS by JPB July 17 1998, Modified JPB to include cd keyword
(See MacintoshHD:IDL Libraries:JPBlib:ISSA:make_issa_cat.pro)
NAME: mosaique_issa PURPOSE: creates a mosaic of ISSA images CATEGORY: ISSA CALLING SEQUENCE: im=mosaique_issa(hh,band[,weight=][,/show]) INPUTS: hh : header on which projection has to be done band = IRAS band for which the filenames have to be returned (1=12 mic to 4=100 mic) OPTIONAL INPUTS: show = show intermediate images, if set. OUTPUTS: im = image corresponding to h OPTIONAL OUTPUTS: weight = weight map for im COMMON BLOCKS: None SIDE EFFECTS: None RESTRICTIONS: None PROCEDURE: Uses locate_issa and mosaique3 recursively until all the image area has been covered. Uses locate_issa.pro, mosaique3.pro, create_coo2.pro, index2ij.pro EXAMPLE: ra=ten(16.,24,0)/24.*360. & dec=ten(-20.,0.,0.) file=locate_issa(ra,dec,band=4,closest=2) d=readfits(file(0),h) sxaddpar,h,'CDELT1',sxpar(h,'CDELT1')*2. sxaddpar,h,'CDELT2',sxpar(h,'CDELT2')*2. window,0,xs=500,ys=500 & loadct,13 im=mosaique_issa(h,4,weight=w,/show) image_cont20,im,h,/square,imrange=[-100,300] MODIFICATION HISTORY: Created Oct 30 1997 by J.Ph. Bernard IAS Modified June 2 1998 for MacOS JPB
(See MacintoshHD:IDL Libraries:JPBlib:ISSA:mosaique_issa.pro)