Marcario Low Resolution Spectrograph

DevelopmentsLinks
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




Last updated: Tue, 15 May 2012 00:34:57 -0500 caldwell



Overview

The Telescope

Technical Overview

Object Observability

Performance

Instruments

HRS

HRS Instrument Summary

HRS - Details

HRS Configurations

HRS Throughput

HRS Wavelength Calibration

MRS

MRS Instrument Summary

MRS Configurations

MRS Throughput

MRS Wavelength Calibration

LRS

LRS Instrument Summary

LRS Configurations

Multi-object Unit

LRS Throughput

LRS Spectral Resolution

LRS Wavelength Calibration

Visitor Filter Information

LRS Position Angles

Blind Offsetting

Guide Stars Limits

LRS Update from Gary Hill

Program Preparation

Web Management System

Other HET Documentation