Abstract

The Spectral and Photometric Imaging Receiver (SPIRE) is one of three scientific instruments on the European Space Agency's (ESA) Herschel Space Observatory (HSO). The medium resolution spectroscopic capabilities of SPIRE are provided by an imaging Fourier transform spectrometer (IFTS). A software simulator of the SPIRE IFTS was written to create realistic data products, making use of available qualification and test data. A graphical user interface (GUI) provides fast and flexible access to the simulation engine. We present the design and integration of the simulator, as well as results from the simulator predicting the instrument performance under varying operational conditions.

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