40m RT basic technical information
Spectral observations. These observations are available under several standard modes: position switch and frequency switch. On-The-Fly (OTF) mode will be offered soon (see below). Position Switch observations can be programmed ad-hoc using several phases. The spectral backends are Fast Fourier Spectrometers (FFTs) with 100 MHz, 500 MHz, 1.5 GHz and 2.5 GHz bandwidths with 6 KHz, 30 KHz, 180 KHz and 38 KHz resolution respectively
Continuum observations. These observations are restricted to total power pointing drifts or focus drifts. Position switch using a wobbler or a beam switch are not available. Currently there are several backends offering a bandwidth of 2.5 GHz, 1.5 GHz, 500 MHz or 100 MHz depending on the observed frequency.
New: On-The-Fly mapping and 3 mm (band W) observations are now offered in DDT proposals under a strict shared-risk policy. Please indicate the desired mode in your scientific justification and in the Scheduling Constraints boxes of the science goals in RAYO, as OTF and band W selections are not yet available in RAYO.
Available observing frequencies:
Instantaneous detection band and spectral resolution
Angular resolution (θb) and aperture efficiency(ηA)
The 18 GHz expansion of bands Q and W has been done within project Nanocosmos (ERC-2013-Syg-610256-NANOCOSMOS) during 2019.