Dear Barry,

The Gravity Group at the University of Oregon would like to request access to 
the data taken during the engineering run of April 3-4, 2000 at the LIGO Hanford 
Site.  

An immediate project involves determining if seismometers or tiltmeters provide 
a better measure of the microseismic peak for addition of this signal to the 
laser control signal.  For this we request permission to transfer data from the 
fortress machine at the Hanford site to a machine at Oregon.  We will coordinate 
the transfer of the data with an appropriate LIGO-Hanford representative (we 
expect either John Zweizig, Daniel Sigg or Christine Patton will fill this 
role).

On a longer time-scale, we intend to use the data to develop and test routines 
for on-line data reduction.  We also intend to use this data to search for 
correlations between environmental monitors and the laser control signals, with 
a special emphasis on ambient magnetic fields.

We request permission to transfer data from the LIGO Data Archive at the Caltech 
Center for Advanced Computing Research (CACR) to Oregon, once the data is 
available there.  We also request permission to copy the data from the entire 
engineering run to an AIT-2 tape.  The tape would be provided by Oregon, and the 
copy made by one of us while at the Hanford site.

This letter will be posted on the web site of the LIGO Scientific Collaboration 
(LSC) to inform our colleagues of our intended use of this data. Of course, any 
publications arising from the use of this data will be subject to the LIGO/LSC 
Publications and Presentations Policy.

The Gravity Group at Oregon consists of Jim Brau, Ray Frey, David Strom, Evan 
Mauceli, Robert Schofield, Masahiro Ito, and Rauha Rahkola.


Sincerely,

The Oregon Gravity Group