Date: Tue, 07 Mar 2006 13:51:17 -0800

Dear IRS-Peak-up Mappers,

It has come to our attention that there are some problems
with the PRF calibration files delivered in the S13 Peak-up
imaging data that you may have recently downloaded (they come
with the standard pipeline products in the cal directory).
The files (both blue and red peak-up) are incorrect,
and will yield incorrect photometry information when used for
automatic source extraction of fluxes in APEX. We are actively
working to fix these files, but in the meantime observers should
not use them. Until then you may continue to use standard aperture
photometry techniques to extract source fluxes. We wanted you
to know immediately that these files are unreliable now.
Please stay tuned and look out for updates on this important issue.
We will provide you with information soon on how to obtain
reliable replacement files.

The SSC IRS Instrument Support Team