SYN structure

The SYN structure is used to store a phase synopsis for a given epicentral distance and focal depth, similar to the "Phase summary" section in the IASP91 Booklet (Kennett, 1991).

SYN structure
Field Type Units Description
delta numeric ° Epicentral distance for which travel times were computed
h numeric km focal depth for which travel times were computed
name string - name of the model for which travel times were computed (usually taken from the .name field of a model-structure).
names string matrix - List of Phase names for which travel times are given.
ttimes numeric array s List of arrival times of the phases listed in the names field. ttimes(i) corresponds to names(i,:).
p numeric array s/° Ray parameters at which the phases arrive.
d numeric array ° Epicentral distances at which phases arrived (in order to document roundoff errors in slowness estimation)
a numeric array ° Take off angle at which phase left the source
tp numeric array km Turning point depth: the greatest depth reached by the corresponding ray.

eof.