AIPS HELP file for VLBAUTIL in 31DEC25
As of Wed Dec 11 6:13:36 2024
VLBAUTIL: Defines procedures for reducing VLBA data.
INPUTS
VLBAUTIL uses no adverbs.
To use these procedures type 'RUN VLBAUTIL'.
HELP SECTION
VLBAUTIL
Type: Run file
Use: VLBAUTIL defines a number of procedures that can be used in the
reduction of VLBA data. See the individual HELP files for full details.
To use these procedures type 'RUN VLBAUTIL'.
The following procedures are generally useful:
ANTNUM - returns antenna number for a named antenna
SCANTIME - returns time range for a scan in index table
DAYNUM - returns the day number when given a date
The following procedures automate some aspects of VLBA data reduction:
VLBALOAD - loads VLBA data with simplified inputs
VLBAFIX - fixes VLBA data
VLBAEOPS - fixes Earth Orientation Parameters (downloads external files)
VLBATECR - calibrates ionospheric delay (downloads external files)
VLBASUBS - finds subarrays in VLBA data
VLBAMCAL - removes redundant calibration data from tables
VLBAFQS - copies frequency IDs to separate files
VLBAFPOL - fixes polarization labeling for common cases
VLBASUMM - prints antenna and scan information for experiment
VLBACALA - OBSOLETE determines a-priori amplitude corrections
VLBACCOR - determines digital corrections from auto-correlations
VLBABPSS - determines bandpass and futher amp corrections
VLBAAMP - determines a-priori amplitude corrections
VLBAPANG - determines phase corrections for parallactic angles
VLBACPOL - calibrates cross polarization delays
VLBAPCOR - determines instrumental phase corrections using phase cals
VLBAMPCL - determines instrumental phase corrections manually
VLBAFRNG - does global fringe fit using FRING
VLBAKRNG - does global fringe fit using KRING
VLBAFRGP - does global fringe fit for phase referenced exp using FRING
VLBAKRGP - does global fringe fit for phase referenced exp using KRING
The following procedures are useful in checking the calibration:
VLBASNPL - plots the SN or CL tables versus time
VLBACRPL - plots the crosscorrelation spectrum
The following procedures are mostly useful for writing run files or POPS
procedures:
RUNWAIT - run a task and wait for it to finish
MAXTAB - returns maximum version number for a given table type.
These procedures use variables and procedures starting with the prefix
VBA_ for internal purposes so you should avoid defining your own
variables or procedures that start with this prefix.
EXPLAIN SECTION