Planet Finder Spectrograph
Specifications
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For more detailed information than the summary specs presented below, please see the User Manual and SPIE papers.

Wavelength range: Fixed format covering 388 to 668nm.

Slits and Resolving Power:

Width (")Length (")Resolving Power Comment
0.32.5127,000 
0.52.576,000 
0.72.554,000 
0.23.7190,000 
0.33.7127,000 
0.53.776,000 
0.73.754,000 
1.03.738,000 
0.71054,000Orders overlap
3.03.7N/AFor efficiency evaluation
0.73.9N/AFor Wide Flats
0.3-N/APinhole; For Focus
Scale and Dispersion: 0.09 arcsec/pixel, ~0.015 Angstroms/pixel

Velocity precision: under 1 meter/sec, based on data taken as of August 2010

Detector: STA0500A CCD, 4K x 4K, 15 micron pixels. Non-linearity data

SpeedRead Noise (e-)Gain (e-/ADU) Readout time (sec)
Slow4.070.60144
Fast5.171.12100
Turbo7.132.0078
Slit viewer field of view: 38x38 arcsec

Calibration sources: Thorium Argon lamp, Quartz lamp, Iodine absorption cell

Practical faint magnitude limit: Somewhere between V=15 and V=16, limited by star visibility in slit viewer

Efficiency: Peak instrumental efficiency is around 23%
Instrumental efficiency from entrance aperture to detector.

This does not include slit losses, telescope efficiency, or atmospheric absorption, but does include the QE of the CCD.

PFS efficiency
AB magnitude zero point.

This is the AB magnitude of an object from which one expects to receive 1 electron/sec/Angstrom at 1 airmass without a slit. Depending on the airmass, seeing, and choice of slit, actual count rates will be lower.

PFS AB magnitude zero
point

Last modified: 08 August 2017 10:20:28 am.