LIRIC under development in lab (covers removed). ©2023 A.Piascik


The Liverpool Infra-Red Imaging Camera is an instrument development project co-funded by STFC and LJMU. It was designed and built by the ARI and will be available from 2024 Q1, replacing the now-decommissioned IO:I camera. It offers rapid X and Y axis fixed-distance offsetting (nodding) for sky background subtraction.


2023 Q3:
Under development at ARI; scheduled for deployment 2024 Q1.

Specifications & Performance

Data is for detector temperature = -20°C

Detector 640 x 512 pixel InGaAs sCMOS by SCD.USA
Pixel scale 0.3 arcsec/pixel (no binning available)
Field of view 3.3 x 2.7 arcmin (no windowing available)
Gain 0.52 electrons/ADU
Dark current 821 electrons/second
Read Noise 32 electrons
Linearity < 1 %
Bit depth 8520 electrons
Exposure 0.1 or 1.0 seconds co-added for longer exposure time
Approximate Zeropoint 22.8 (H-band)

Filter Set

LIRIC has an uncooled 5-position filter wheel. At the moment only J and H band filters are installed:

Filter Name

Wavelength Range

Barr J


Barr H