NEWS (March 29, 2001, JK): Most filter curves are now
on-line.
NEWS (March 27, 2001, JK):
we have been able to commission the new aspheric
foreoptics for INGRID, and from now on this will be used with INGRID.
Subject to confirmation, throughput in all bands has been boosted by
about 40%. SIGNAL still gives the old values for sensitivity, but is due
to be updated soon. Also image quality is better than it was with the
old foreoptics (doublet).
INGRID (Isaac Newton Group Red Imaging Device) is a
near-IR camera for use at the 4.2m
WHT, mostly built
and developed at ING. At the heart of INGRID is a
1024x1024 Hawaii near-IR detector array for imaging from 0.8 to
2.5 microns. The pixel scale has been determined at 0.242
arcsec/pixel, see the
Instrument
overview.
