READ-GSD-MAP

Similar to READ-GSD-DATA, but it reads spectra from a GSD spectrum directly into the map file. This is fine if there are no duplicates, but gets tricky if, for example, your observation sequence came back to the center every $5^{th}$ integration for calibration purposes. Also not clear that it is sensible if there is more than one receiver per spectrum. Much better to use a procedure such as READALL.SPX to generate independent SPECX data files for each receiver, and then to write a further macro to average these into the map file. Not recommended.

Examples:

    >> read-gsd-map<CR>
    Original I.F. channel number? [ 0] 1<CR>
    GSD scan numbers? (^Z to finish) 43<CR>
    Data seem to be pre-Sept.88
             (x,y) offset = ( -30.0, -30.0) arcsec
             (r,d) offset = (  30.0, -30.0) arcsec


Stack posn    Scan no    Title
    X          244              _1 L483      JCMT 
Total RA, Dec offsets (arcsec):    30.00000      -30.00000    
Total X, Y offsets (cells):    3.000000      -3.000000    
Spectrum position is 0.0 arcsec in X and 0.0 arcsec in Y from nearest pixel
Spectrum placed in cell (  3.0, -3.0) 

           :
           :

Stack posn    Scan no    Title
    X          244              _1 L483      JCMT 
Total RA, Dec offsets (arcsec):   -30.00000       30.00000    
Total X, Y offsets (cells):   -3.000000       3.000000    
Spectrum position is 0.0 arcsec in X and 0.0 arcsec in Y from nearest pixel
Spectrum placed in cell ( -3.0,  3.0) 
GSD scan numbers? (^Z to finish)