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SPIRou Specifications in a Nutshell
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Last update: April 2017.
The numbers below show the main instrument technical specifications derived from the science requirements.
| System |
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| 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- |
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