Sep 2010 |
Cumulative measures finally extinguish
chronic ICE crashing |
Sep 2009 |
Grism transport stage upgrade completed |
Jul 2009 |
A variety of ICE crashes become frequent feature |
Mar 2009 |
Ongoing trouble with grism transport stage |
Dec 2008 |
Slit unit repaired: all slits available |
Aug 2008 |
Repaired g3 grism back in service |
May 2008 |
Intermittent looseness of LRS slit begins |
Dec 2007 |
g3 grism damaged |
Apr 2007 |
Repaired MOS unit back in service |
Nov 2006 |
MOS unit malfunctions |
Nov 2005 |
New multi-star blind offsetting capability |
Sep 2005 |
New OG550 filter installed |
Feb 2004 |
Memo from Gary Hill about LRS
guide stars limits |
Apr 2003 |
New msetup package to facilitate MOS setups |
Apr 2003 |
New e2 grism in service |
Mar 2003 |
New GG385 filter installed |
Dec 2002 |
New g3 grism in service |
Nov 2002 |
New version of makemos to facilitate MOS setups |
Oct 2002 |
LRS cryotiger repumped |
Jun 2002 |
HgCdZn lamp expires, replaced with Cd lamp |
May 2002 |
Memo from Gary Hill about
LRS status update |
Jan 2002 |
Slit unit repaired: all slits available |
Jan 2002 |
Temperature drift compensation for MOS unit
installed |
Nov 2001 |
New version of makemos to facilitate MOS setups |
Oct 2001 |
Slit unit failed: only 2" slit useable |
Oct 2001 |
SF1 readnoise reduced to 5.1 electrons |
Oct 2001 |
SF2 fails: SF1 reinstalled |