The JPL routines are used for observations of planets, which are probably only of interest for single-dish testing of the VLBA by staff. Using the stub requires changing some comments in the Makefile . The examples in the examples subdirectory can be used to test the code once it has been installed. For unix systems, the routine Verify can be used to run all of the examples and compare results with those in Stdout . The output from Verify will be in the file testruns.out .
Any differences are in the output from diff.
It is common to have differences in items such as source positions in the last significant figure. Different machines handle rounding differently. Such differences can be ignored. Any more serious differences are cause for concern. You must have version 5.2 or later.