`Alopeke & Zorro

Capability Summary (Read more)

Speckle Imaging

• 1-minute integrations comprised of 1000 images of 60 msec each
• 256x256 pixel (2.5") subarray
• Can achieve diffraction-limited resolution (0.016" FWHM at 500nm and 0.025" at 800nm)
• Larger subarrays may be used for extended objects, but the performance will depend on the stability of the atmosphere.

Wide-Field

• Read out of the full frame at 1MHz
• Possible to:
  • bin
  • read out a subarray
  • use the EMCCD amplifier for faster readout
  • read more slowly (0.1 MHz) for lower read noise

Guiding Options (Read more)

• PWFS

Papers containing 'Alopeke and/or Zorro data should acknowledge Gemini and the 'Alopeke / Zorro team.

The PI for the Gemini Speckle program is Steve Howell (NASA Ames Research Center).