SPIRou Specifications in a Nutshell
Last update: April 2017.
The numbers below show the main instrument technical specifications derived from the science requirements.
System
Throughput > 10%
Thermal background at 2.35 microns < 50 ph/s/A
Sensitivity of the guiding up to H~14
Spectrograph
Wavelength Domain 0.98-2.35 microns
Spectral Resolution > 70,000
Pixel size < 2.3 km/s
Velocimeter
Radial-velocity accuracy 1 m/s (internal)
Method simultaneous spectral calibration
Detector
Type H4RG
Dimensions 4k x 4k
Pixel size 15 microns
Quantum Efficiency > 70%
Cosmetics < 1% bad pixels
Readout mode Ramp fitting
Dark current < 0.05 e-/s
Readout Noise (CDS) < 15 e-