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 Sh_gamit is a script to automate GAMIT processing 
  
 - sets up a directory structure for GAMIT 
 - gets tables and data from various archives around the world 
 - converts raw to RINEX if necessary 
 - runs GAMIT and saves phase sky-plots to check daily quality 
  
 To run for a particular experiment, create a /tables directory within 
 your experiment directory, copy into /tables the following files from  
 gg/templates and modify them appropriately: 
   process.defaults    sites.defaults
   sestbl.             sittbl.
   autlcn.cmd          station.info
 Check other files in the templates directory. Edit them to suit the type  
 of analysis you are running, and the options you like.
  
 Script to automate GAMIT processing
  
 Usage: sh_gamit <options> 
  
 Where the following are some of the options avaiable: 
  
 -dir           Experiment directory or root directory for experiment processing. 
                This must be an absoute path. [Default pwd]
 -d yr days     where yr and days are the data to be processed e.g. 1997 153 156 178 
 -s yr d1 d2    where d1 is start day and d2 is stop day to be processed e.g. 1997 153 178 
 -r day         where day is number of days before current date. 
 -expt          4 char name of experiment/s to run. (list of expts can be used). [Default expt] 
 -orbit         Type of orbit to use. (IGSP IGSR IGSF SIOP SIOR SIOF) [Default SIOF] 
                Optional second argument gives the day-of-year for the orbit if not the same as processing day
 -orbt          4 char ID for orbit files. [Default 4 char extracted from the orbit selected]
 -eops          Name of EOP series to use. (bull_b, bull_a, etc.) [Default usno] 
 -localeop      Use a local copy of EOP tables (series used is defined by -eops).
                No ftp update will be attempted. [Default off]
 -remakex Y/C/N Y - Remake x-files without checking.
                C - Remake x-file if orbit and session.info are incompatable and all RINEX available [Default C]
                N - Don't remake x-files under any circumstances
 -renamek Y/C/N Y - Remove existing k-files and remake 
                C - Do not remake k-files unless missing or X-files remade (default)
                N - Do not remake k-files -- stop if missing
 -remakej Y/N   Y - Remake j-file (default)
                N - Do not remake j-file (used with epoch-by-epoch j-files for SA with mismatched time tags)
 -netext char   add network suffix <char> to day directories. Ie 035r
 -yrext         add year prefix to day directories. Ie 1997_053  
 -pres          Plot gamit residuals as skyplots <Y/N/E>. YES, NO, ELEV. [Default N] 
 -nogifs        Do NOT create skyplot gifs. 
 -sessinfo      Session - sampling interval, number of epochs, start time (default 30 2880 0 0)
 -rx_doy_plus   Search RINEX file names this many days into the future for current-day data
 -rx_doy_minus  Search RINEX file names this many days into the past for current-day data
 -minspan       Minimum span of data in rinex files in hours [Default is 0.1 (6 min)]
 -mailto        Name of user and machine to send results summary. (eg. simon@wegener.mit.edu)
 -snrres        Calculate theoretical phase residuals from SNR. (requires raw data or rinex W/SNR)
 -noacc         Do not exclude satellites base on accuracy codes in the .sp3 file. [Default exclude]
 -xsite list    List of sites to be excluded from the processing. [format site:yyyy_ddd-yyyy_ddd OR site]
 -copt  opts    Types of files to be compressed in the day directory. [Default: x k ao D] 
 -aopt  opts    Types of files to be archived under -archivepth <dir>. [Default: null]
 -dopt  opts    Types of files to be deleted from the day directory. [Default: c] 
                Possible d-, c-, and a- opts: D, H, ao, ac, as, b, c, d, e, g, h, i, j, k, l, m, o, p, q, t, x, ps, all
                Note:  all for -dopt will also remove the day directories, so pairs logically with -aopt H h q as 
 -h             Use Hatanaka RINEX compress algorithm. [Default No]
 -archivepth dir   Directory where files are to be archived [Default $procdir/archive]  
 -xver char     1-character x-file version (6th character of x-file). [Default is single-digit year]
 -noftp         Use this option if no ftp download connections are available.
 -ftp_prog      Name of ftp program: ftp or ncftp [default is ftp]
 -rinex_ftpsites List of ftp sites to be searched for rinex files [default sopac cddis and unavco]
 -aprfile       Name of xyz coordinate .apr file to be used. [Default is itrf2000.apr]
 -xcheck        Y/N Do not ftp rinex file if the xfile exists already [Default N]
 -noprocess     Use this option if processing should be avoided (only recovering files).
  
 Other options are set in the process.defaults file located in the tables directory 
  
 To get more options type: sh_gamit -help 
  
 Example: sh_gamit -d 98 240 -orbit SIOF -expt tubi -eops usno -nogifs
  
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