LGS Operations at Keck I

Hosted by Randy Campbell at Keck HQ in Waimea.

Notes:
  • Solid-state laser, on-axis launch, pulsed, ~23 Watts at source (Keck II still dye and side-launch).
  • 0.5 deg KoC
  • Free-space propagation through several mirrors (laser source on Nasmyth platform).
  • 45 minutes app to get all loops ready for science. Start with NGS loop on a bright star.
  • One telescope operator (Observing Assistant) and one support astronomer.
  • CFHT All-sky camera: http://www.cfht.hawaii.edu/~asiva
  • Ask Paul Stomski for contact person with Flight Explorer.
  • To measure sodium layer thickness: segments are tilted to create 36 spots. Outer segments spots will show elongation for a 5 meter offset from central spot.
  • Sodium layer altitude calculated from focus measurements.
  • Testing was done to check for interference between TBAD and radios, wireless, A/C, etc.

-- %USERSIG{GustavoRahmer - 2014-10-11}%

Comments

 
  • Keck I Control Room:
    1787.JPG

  • Status GUIs:
    1788.JPG

  • View of the LGS propagation:
    1792.JPG

  • Model of the telescope:
    1796.JPG
I Attachment Action Size Date Who Comment
1787.JPGJPG 1787.JPG manage 1 MB 15 Feb 2015 - 03:40 GustavoRahmer Keck I Control Room
1788.JPGJPG 1788.JPG manage 1 MB 15 Feb 2015 - 03:40 GustavoRahmer Status GUIs
1792.JPGJPG 1792.JPG manage 1 MB 15 Feb 2015 - 03:41 GustavoRahmer View of the LGS propagation
1796.JPGJPG 1796.JPG manage 1 MB 15 Feb 2015 - 03:41 GustavoRahmer Model of the telescope
Topic revision: r2 - 15 Feb 2015, GustavoRahmer
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