FourStar 4K x 4K JHK imager
FourStar Internals 95% done Camera & window optics are mounted in cells Photo credit: David Murphy 12/7/2018 FourStar
FourStar Optics ready to install 12/7/2018 FourStar
FourStar All Mylar and MLI installed 12 of 16 temp sensors installed Greg Ortiz works on the rack (photo credit: David Murphy) 12/7/2018 FourStar
FourStar Half the controller systems installed
FourStar All focal plane mechanisms installed and tested warm using alignment telescope and reflecting targets 12/7/2018 FourStar
FourStar Warm alignments completed: Detector dewar Field flattener wheel Camera module Radiation shield To be done: Detector module 12/7/2018 FourStar
FourStar Detectors 3 of 4 miss the readnoise spec: 30 e- vs 20 e- Working with Teledyne to resolve the issue 12/7/2018 FourStar
FourStar Electronics Racks are complete Process controller is not. This monitors thermistors, vacuum, LN2 levels, and controls LN2 autofill 12/7/2018 FourStar
FourStar Data system computers Tested using laboratory test dewar Media: USB2 disks for science data and Blu-Ray for engineering data 12/7/2018 FourStar
FourStar Control software 95% done: motors, temperatures Waiting on process controller completion 12/7/2018 FourStar
FourStar Data acquisition & pipeline software “Dan Kelson’s working on it” 12/7/2018 FourStar
FourStar Schedule First cooldown week of March 23, 2009 Postdoc arrives in June 2009 Several cold alignment cooldowns to follow; each takes a month Ship to LCO in 2010A 12/7/2018 FourStar