Subject: new R1200 grating for DIS, from Russet McMillan

From: Michael Strauss

Submitted: Tue, 31 Jul 2007 10:20:37 -0400

Message number: 1047 (previous: 1046, next: 1048 up: Index)

Hello all,

We have received a new 1200-line red grating for DIS, which has been
loaded and tested in the instrument.  We haven't been able to
characterize the grating on-sky due to summertime weather, but lamp
spectra look substantially the same as the previous R1200 grating
which got damaged.  The new grating still produces spectra near the
bottom of the chip, but not quite as far down as the old one.  It has
very nearly the same dispersion as the previous grating as well.
This grating will now be the standard one offered as the R1200
grating.  

				   Russet.

APO APO APO APO APO  Apache Point Observatory 3.5m  APO APO APO
APO
APO  This is message 1047 in the apo35-general archive. You can find
APO  the archive on http://www.astro.princeton.edu/APO/apo35-general/INDEX.html
APO  To join/leave the list, send mail to apo35-request@astro.princeton.edu
APO  To post a message, mail it to apo35-general@astro.princeton.edu
APO
APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO