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NGAO LOWFS Object Selection Mechanism

Nomenclature:

NGAO LOWFS OSM
This is a interim OSM for the NGAO system, likely required for first light before the d-IFS is commissioned. The OSM contains:
  • 2 TT star NIR WFS channels
  • 1 TWFS NIR WFS channel
  • 1 TTFA NIR WFS channel
  • 1 wide-field PSF monitor
  • 4 pick-off mechanisms to feed the star light to the respective WFS channel
  • NB: the TWFS/TTFA WFS channels will be fed by 1 pick-off arm located on the brightest star in the field

Dec 14th, 2007

Jan 16th, 2007
Update: the TTFA and TWFS WFS channels will be fed by 1 pick-off arm located on the brightest star in the LOWFS field of view. After chats with Viswa and Chris N, the original 4th pick-off arm should be used for a PSF monitor channel.

-- Anna Moore 12th Dec 2007

Topic attachments
I Attachment History Action Size Date Who Comment
PDFpdf WFS_vol_req.pdf r1 manage 575.9 K 2007-12-14 - 23:01 UnknownUser  
PDFpdf ngao-lowfsosm-notes-121507.pdf r1 manage 928.2 K 2007-12-14 - 20:23 UnknownUser  
Microsoft Excel Spreadsheetxls pickoff-definition.xls r1 manage 36.0 K 2008-01-17 - 01:17 UnknownUser  
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Topic revision: r4 - 2008-01-17 - AnnaMoore
 
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