[SAC-HELP] Header Calculations

[Anna Courtier]

Hello,

I have some SAC files and need az, baz, dist, and gcarc in the  
headers. The event and station locations are already in the headers  
and LCALDA = TRUE.  With LCALDA=TRUE, I think the az, baz, etc should  
be automatically calculated and put into the headers, but this is only  
the case for about half of the data files. Switching LCALDA to false  
does not change anything, and resetting the LCALDA  to true does not  
fix the problem either.  Does anyone have a solution for this?  There  
is no obvious pattern for which files work and which do not.

I'm working with SEISMIC ANALYSIS CODE [02/05/2008 (Version 101.1)] on  
Mac OS X.

Thanks,
ANNA