This Ancillary Data Product archive contains information about the System Noise Temperature (thereafter Tsys) characteristics of the HIFI instrument. In particular, detailed spectra of Tsys vs Intermediate Frequency (IF) are given for a fine granularity grid of Local Oscillator tuning frequencies. The System Noise Temperature data products are particularly relevant to the instrument experts or engineers interested in inspecting in great details the performance of HIFI as an heterodyne detector.
More details about the ancillary data product content can be found in the release notes.
David Teyssier (HSC), 15-Dec-2016