Congratulations to both ASIAA and JCMT staff! We achieved first light with our receiver `Ū`ū on Friday, October 4th, 2019. `Ū`ū is part of the Nāmakanui instrument and works at wavelengths around 1.2mm. Our first observation was taken of CRL2688, a bright sub-mm source between a red giant and planetary nebulae.
Nāmakanui has been offered to JCMT users for single dish observing, initially at 230GHz and later at 345GHz.`Ū`ū is a dual polarization 2-sideband receiver with up to 8GHz of bandwidth (less when using ACSIS). `Ū`ū will be much faster than Rx3Am (which was retired in June 2018) for similar observations. The JCMT Heterodyne Integration Time Calculator https://proposals.eaobservatory.org/jcmt/calculator/heterodyne/ has been updated for `Ū`ū observing.