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FourStar 4K x 4K JHK imager

Published byOpal Rosemary Carroll Modified over 6 years ago

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Presentation on theme: "FourStar 4K x 4K JHK imager"— Presentation transcript:

1 FourStar 4K x 4K JHK imager

2 FourStar Internals 95% done
Camera & window optics are mounted in cells Photo credit: David Murphy 12/7/2018 FourStar

3 FourStar Optics ready to install 12/7/2018 FourStar

4 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

5 FourStar Half the controller systems installed

6 FourStar All focal plane mechanisms installed and tested warm using alignment telescope and reflecting targets 12/7/2018 FourStar

7 FourStar Warm alignments completed: Detector dewar
Field flattener wheel Camera module Radiation shield To be done: Detector module 12/7/2018 FourStar

8 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

9 FourStar Electronics Racks are complete
Process controller is not. This monitors thermistors, vacuum, LN2 levels, and controls LN2 autofill 12/7/2018 FourStar

10 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

11 FourStar Control software 95% done: motors, temperatures
Waiting on process controller completion 12/7/2018 FourStar

12 FourStar Data acquisition & pipeline software
“Dan Kelson’s working on it” 12/7/2018 FourStar

13 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

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