% @(#)modifyopto.hlq	17.1.1.1 (ESO-IPG) 01/25/02 17:54:57
%+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
%.COPYRIGHT   (c) 1991 European Southern Observatory
%.IDENT       modify_holes.hlq
%.AUTHOR      A. Gemmo    Padova Department of Astronomy
%.KEYWORDS    MIDAS, help files, MODIFY/OPTOPUS
%.PURPOSE     On-line help file for the command: MODIFY/OPTOPUS
%.VERSION     1.0 12-SEP-1991 : Creation, AG
%---------------------------------------------------------------------
\se
SECTION./OPTO
\es\co
MODIFY/OPTOPUS                                   12-SEP-1991 AG
\oc\su
MODIFY/OPTOPUS [table]
	plot positions of holes on plate and enable rejection of objects.
\us\pu
Purpose:      
              Plot on graphic screen positions of holes on Optopus plate 
	      so that plate limits, different types of objects (big and
	      small guidestars and scientific targets) and objects in a
	      (for any reason) "unconvenient" position are clearly
	      shown. These you can select by cursor and in case 
	      reject by typing a "D" or a "d" when prompted.
	      It may happen that two or more objects are too 
	      much close for a correct identification. In this case, the
	      use of the command ZOOM/OPTOPUS (see documentation) is
	      strongly advisable.
\up\sy
Syntax:       
              MODIFY/OPTOPUS [table]
\ys\pa
	      [table]      = input table of HOLES/OPTOPUS command which
			     contains :RA and :DEC columns. This is the
			     basic table of any Optopus run and has been
			     created by the command CREATE/OPTOPUS.
			     Default name is "opto1.tbl".
\ap\no
Note:        
              RA and DEC are spherical coordinates, but they have to be
	      plotted on a plane: this implies that getting closer to
	      the pole the circle representing the plate border on the
	      plot will become an ellips of increasing eccentricity.
\on\exs
Examples:
\ex
	      MODIFY/OPTOPUS myoptotab
\xe\ex
              MODIFY/OPTOPUS 
\xe\sxe