Thanks to you, Larry and all that answered.  I've searched and can only find 
that the IASP91 is the newer, but cannot discover that it would matter that 
much in my limited sensor setup and environment.  Looking at other posts, 
the JB seem to be the favorite, if not be default.

Regards & Happy new Year to All
Jerry

  ----- Original Message ----- 
  From: Larry Cochrane
  To: psn-l@..............
  Sent: Thursday, December 31, 2009 2:46 PM
  Subject: Re: And Now A Simple Question


  Hi Jerry,

  The JB and IASP91 tables are different travel time models of the earth. I 
think the
  IASP91 table is newer so it might be more accurate.

  Regards,
  Larry Cochrane
  Redwood City, PSN

  GPayton wrote:
  > After the recent "high level" discussions, I would like to present one 
at MY
  > intelligence level. (NO puns, please)
  >
  > Please tell me the significant differences in using the JB vs. the 
IASP91
  > tables?
  >
  > Given a chosen event, switching between tables will result in different
  > times, distances and etc.  How do I know WHICH to use in WinQuake.
  >
  > Thanks,
  > Jerry
  >
  __________________________________________________________

  Public Seismic Network Mailing List (PSN-L)

  To leave this list email PSN-L-REQUEST@.............. with
  the body of the message (first line only): unsubscribe
  See http://www.seismicnet.com/maillist.html for more information.







Thanks to you, Larry and all that answered.  I've searched and =
can=20
only find that the IASP91 is the newer, but cannot discover that it =
would matter=20
that much in my limited sensor setup and environment.  Looking at =
other=20
posts, the JB seem to be the favorite, if not be default.
 
Regards & Happy new Year to All
Jerry
 

  
----- Original Message ----- 
  From:=20
  Larry=20
  Cochrane 
  
To: psn-l@.............. 
  
Sent: Thursday, December 31, =
2009 2:46=20
  PM
  
Subject: Re: And Now A Simple=20
  Question
  

Hi Jerry,

The JB and IASP91 tables are different =
travel=20
  time models of the earth. I think the 
IASP91 table is newer so it =
might be=20
  more accurate.

Regards,
Larry Cochrane
Redwood City,=20
  PSN

GPayton wrote:
> After the recent "high level" =
discussions, I=20
  would like to present one at MY 
> intelligence level. (NO puns, =

  please)
> 
> Please tell me the significant differences in =
using=20
  the JB vs. the IASP91 
> tables?
> 
> Given a chosen =
event,=20
  switching between tables will result in different 
> times, =
distances=20
  and etc.  How do I know WHICH to use in WinQuake.
> =

>=20
  Thanks,
> Jerry 
>=20
  =

__________________________________________________________

Pub=
lic=20
  Seismic Network Mailing List (PSN-L)

To leave this list email =
PSN-L-REQUEST@...............
=20
  with 
the body of the message (first line only): unsubscribe
See =
http://www.seismicnet.co=
m/maillist.html=20
  for more information.