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Performance evaluation of the SIMBIO-SYS Stereo Imaging Channel on board BepiColombo/ESA spacecraft
The Stereo Imaging Channel (STC) is one of the channels of the Spectrometer and Imagers for MPO BepiColombo-Integrated Observatory SYStem (SIMBIO-SYS) onboard the ESA BepiColombo mission to Mercury. STC is a double wide-angle camera designed to image each portion of the Mercury surface from two different perspectives, the main aim is to provide panchromatic stereo-image pairs required for the Digital Terrain Model (DTM) reconstruction.In addition, selected surface areas will be acquiredin color. This work presents the expected STC in-flight performance describingthe preliminary evaluation of somekeyparameters:the optical performance, the achievable Signal to Noise Ratio (SNR) for different integration times and observation strategies,the on-ground resolution and the global coverage of PAN filters during the entire scientific phase. The estimation of the SNR has been made using the SIMBIO-SYS radiometric model with Hapke reflectance model for Mercury surface and the SPICE toolkit software. The SPICE toolkit software with kernel for BepiColombo mission has been used also for the estimation of the on-ground pixel dimension and the global coverage all over the mission. Furthermore, the on-ground expected performance of STC has been also presented through the preliminary results of the radiometric calibration campaign.
Slemer Alessandra, Simioni Emanuele, Da Deppo Vania, Zusi Michele, Re Cristina, Lucchetti Alice, Dami Michele, Borrelli Donato, Ficai Veltroni Iacopo, Tommasi Leonardo, Aroldi Gianluca, Mugnolo Raffaele, Amoroso Marilena, Capria Maria Teresa, Cremonese Gabriele
Paper for Specialistic Magazine
Measurements - Journal of the International Measurement Confederation (Elsevier B.V.)
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