SSW UTPLOT package			5-Feb-1997, RAS, SDAC/GSFC
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PROCEDURES:
UTHELP, [/LONG]
	Type summary of UTPLOT routines, or if /LONG option is 
	specified, type complete explanation of UTPLOT package.
UTPLOT, X, Y [, 'UTBASE', LABELPAR=LBL, /SAV, TICK_UNIT=TICK, MINORS=MINORS,
	/NOLABEL, TIMERANGE=TIMERANGE, and all keywords available to plot]
	Plot X vs Y with UT labels.
UTPLOT_IO, X, Y [, 'UTBASE', LABELPAR=LBL, /SAV, TICK_UNIT=TICK, MINORS=MINORS,
	/NOLABEL, TIMERANGE=TIMERANGE and all keywords available to plot]
	Plot X vs Y semi-log with UT labels.
	Same arguments as UTPLOT.
UTPLOT_IO is no longer supported.  Please use UTPLOT, /YTYPE
SET_UTPLOT, [XRANGE=X, LABELPAR=LBL, UTBASE='BASE', ERROR_RANGE=ERROR_RANGE,
            ERR_FORMAT=ERR_FORMAT, TICK_UNIT=TICK, MINORS=MINORS,
	    XSTYLE=XSTYLE]
SET_UTLABEL, IFLAG 
	IFLAG = 0/1 means don't/do write start time label on plot.  
	Default is 1.
CLEAR_UTPLOT
	Restores !X... structure to value prior to using UTPLOT with /SAV 
	option or SET_UTPLOT.
SETUT, [UTBASE='UTBASE', UTSTART='UTSTART', UTEND='UTEND', ERROR=ERROR,
       SET_UTPLOT=SET]
	Set base,start, or end time in common UTCOMMON.  
GETUT, [UTBASE='BASE', UTSTART='START', UTEND='END', /STRINGIT, /PRINTIT]
	Retrieve base, start, or end time from common UTCOMMON.  
GETUTBASE ()
	Function to retrieve value of utbase in double precision seconds from 
	common UTCOMMON without having to declare common.
	RESULT = GETUTBASE()
SETUTBASE [,'UTBASE', ERROR=ERROR]
	Set base time.
	UTBASE - string in YY/MM/DD, HHMM:SS.XXX format to be converted to
		internal representation and stored in UTCOMMON variable UTBASE.
	ERROR - 0/1 indicates no error/error in converting UTSTRING
SETUTSTART [,'UTSTART', ERROR=ERROR]
	Set start time. See SETUTBASE description.
SETUTEND [,'UTEND', ERROR=ERROR]
	Set end time. See SETUTBASE description.

************************************************************************************

TIME CONVERSION ROUTINES:

ANYTIM (INPUT, /INTS, /STC, /_2XN, /EXTERNAL, /UTIME, /SECONDS, or ...)
	This function is the universal format converter.  See ANYTIM.PRO
ATIME (UT, [/PUB]) 
	Function to convert time to ASCII string.
	UT - Time to convert to string, in double precision seconds since
		79/1/1, 0000:00.000
	/PUB - Resulting string will have a colon (:) between hours and minutes
UTPLOT_UTIME ('UTSTRING')
	Function to convert ASCII string to double precision seconds since
		79/1/1, 0000.  If no date is entered, previous date is not
		'remembered'.  Result is seconds into day.
	UTSTRING - String containing time in form YY/MM/DD,HHMM:SS.XXX
	ERROR -	=0/1. If set to 1, there was an error in the ASCII
		time string.
OTHER USEFUL CONVERSION ROUTINES:
TJD2YMD (TJD)
	Converts from TJD to ANYTIM formats
YMD2TJD (YMD)
	Converts ANYTIM formats to TJD
UT_2_YYDOY (UT)
	Converts ANYTIM formats to YYDOY
YYDOY_2_UT (YYDOY)
	Converts YYDOY to ANYTIM formats

(For a hardcopy of this information, print the file utplot_short.txt
in the utplot directory, /ssw/gen/idl/utplot.)