April 9, 2008 NGS Engineering


The Palomar AO system has recently undergone a significant refurbishment. In the 4 months since November 29, 2007, we have:
  • Recoated the AO relay flats and OAPs, and repolished and recoated the DM.
  • Realigned the AO relay to provide a focus suitable for P1640 and SWIFT.
  • Mounted FM3 on a removable kinematic base.
  • Modified the PHARO mounting cradle to move PHARO forward 4.5".
  • Modified the AO enclosure and added a PHARO FM3 enclosure.
  • Installed a new AO stimulus, with 594nm laser source.
  • Installed a new motor controller for Aerotech stages.
The purpose of this engineering night is to demonstrate the readiness of the refurbished system for NGS-AO science, and to characterize its performance.

Personnel and engineering schedules

Planning to be present: Angione, Baranec, Bouchez, Burruss, Roberts, Troy.
Engineering schedules:

Procedures and test plans

Please post your test plans on the Test Plan Library page, and add a link below.
  • Daytime tests
    • AO bench setup and checkout (2 hrs) - J. Roberts
      • Align PHARO focus and pupil (DM and telescope).
      • Tune image on PHARO
      • Check centration of field stop.
      • Recalibrate LOWFS acquisition.
    • PHARO pupil motion (1 hr, telescope operator required) - A. Bouchez
    • Stimulus/AO system flexure (1 hr, telescope operator required) - R. Burruss
  • Nighttime tests
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Topic revision: r8 - 2008-04-10 - AntoninBouchez
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