[SAC-HELP] help on rsac.m

Brian Savage savage at uri.edu
Tue Nov 25 07:16:23 PST 2008


Dear Dugdo,

Looks like you are reading a file of the incorrect byte order which  
is why you are getting values similar to
1e-38 and 1e28

Try using the sacswap utility to change the byte order.
% sacswap 2008.211.18.40.15.1695.II.PFO.00.BHN.R.SAC

Cheers
Brian

On Nov 24, 2008, at  6:37 PM , m tuji wrote:

> Hi All,
> The Matlab script rsac.m reads my sac data in Matlab environment,  
> but mostly the values of the variables
> are not correct, they are not even close. An example is given  
> below. If you have any similar experience or suggestion, please  
> give me your advice.
> Thank you.
>
> Dugda
>
> Example:
>
> >> rsac('2008.211.18.40.15.1695.II.PFO.00.BHN.R.SAC')
>
> ans =
>
> dt: -428443552
>
> beg: 4.5189e+28
>
> e: 2.7179e+23
>
> o: 2.0258e-05
>
> a: 2.0962e-38
>
> picks: [10x1 double]
>
>  stla: 6.7842e+16
>
>  stlo: 2.7884e-05
>
> stel: 5.7492e-41
>
>  stdp: -6.3553e-23
>
> evla: 5.0318e-36
>
>  evlo: 4.8871e-35
>
>  evel: 2.0962e-38
>
> evdp: 4.4312e-39
>
>  mag: 2.0962e-38
>
> user: [10x1 double]
>
>  dist: 1.9288e-15
>
> az: 2.9068e-05
>
> baz: 8.8698e+16
>
> gcarc: 2.2920e+35
>
>  nz: [6x1 double]
>
> npts: 1.3627e+09
>
> kstnm: 'PFO'
>
> kevnm: '-12345'
>
> d: [14673x1 double]
>
>  t: [20531x1 double]
>
> depmin: -6.6898e+36
>
>  depmax: 1.2877e+38
>
> depmen: 7.9798e+33
>
> filename: '2008.211.18.40.15.1695.II.PFO.00.BHN.R.SAC'
>
> mytype: 'SAC_STRUCTURE'
>
> >>
>
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> sac-help at iris.washington.edu
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