研究目的
To evaluate the performance of the Stereo Imaging Channel (STC) of the SIMBIO-SYS instrument onboard the ESA BepiColombo mission to Mercury, focusing on optical performance, on-ground resolution, detector response, achievable Signal to Noise Ratio (SNR), and global coverage of panchromatic filters during the scientific phase.
研究成果
The preliminary evaluation of the STC channel's performance indicates its capability to meet the scientific objectives of the BepiColombo mission, including global mapping and color imaging of Mercury's surface. The developed tools and models will aid in planning the observation strategy, optimizing SNR, and ensuring comprehensive coverage of the planet's surface.
研究不足
The study presents preliminary results based on on-ground measurements and models, which will need validation during the Mercury commissioning phase. The performance predictions are subject to the actual conditions encountered during the mission.
1：Experimental Design and Method Selection:
The study combines the STC radiometric model with the Hapke reflectance model for Mercury's surface and uses the SPICE toolkit software for mission planning and performance prediction.
2：Sample Selection and Data Sources:
The analysis is based on on-ground calibration measurements and in-flight performance predictions using SPICE toolkit software with kernels for the BepiColombo mission.
3：List of Experimental Equipment and Materials:
Includes the STC channel of the SIMBIO-SYS instrument, SPICE toolkit software, and calibration setup components like the Thermal Vacuum Chamber (TVC) and Optical Ground Support Equipment (OGSE).
4：Experimental Procedures and Operational Workflow:
Involves on-ground optical and radiometric calibration, in-flight performance prediction using radiometric and SPICE models, and evaluation of SNR and integration times for different mission phases.
5：Data Analysis Methods:
The analysis includes the calculation of SNR, integration times, on-ground pixel dimension, and global coverage using the developed models and SPICE toolkit outputs.
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