Current instruments and computing equipment available at the Vatican Advanced Technology Telescope are:

VATT CCD Imager - Vatt4k

- The long-serving 2K chip has been retired, and has been replaced by a 4K device.

- STA0500A back illuminated CCD installed September, 2007

- Gain - 3.6 e-/DN at default setting #2

- Noise - < 4 e-

- Full Well - 99,000 e- unbinned; 120,000 e- binned 2x2

- Dark Current - TBD

- Operating CCD temperature: -115C

- QE curve PDF - TBD

- ARC Gen2 camera controller with dual output

- 120 second readout time

- Pixels: 4064x4064 15x15 microns

- Full technical details are at the Imaging Technology Laboratory site under VATT systems

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Offset and slit-viewing guide box with CCD guide camera

- provides interface to derotator for all the above instruments.

- effective back focal distance, from guide box to focal surface, is 2.000".

- contains two filter wheels, each holding four 3.48" square filters. Adapters to accommodate 2" and 3" square filters are available.

- UBVRI, uvby, and Vilnius filters are currently provided.

- to contain integrating sphere with continuum and calibration lamps. (not yet implemented)