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Target RA (J2000): 279.147095 and deg Target Dec (J2000): 16.45242 and deg Gaia GMag: 11.05 Programme ID: CH_PR149000 Programme Manager: OSBORN PI of observing programme: Benz Title of programme: SoM - CHeops And TEss vAlidate Unconfirmed eXoplanets Abstract: The vast majority of TESS Objects of Interest remain unconfirmed in part due to a lack of follow-up observations. There are so many such targets that even with strict filters to ensure targets are small planets several unconfirmed TESS candidates are transiting at any one time. CHATEAUX proposes to use time-critical P3 Cheops observations of a filtered and ranked set of TOIs which would be able to be scheduled between higher-priority time-critical Cheops observations. We expect these filler observations will produce useful scientific observations of TOI candidates including ephemeris improvements TTV detection improved radius precision and improved false positive probabilities (thanks to both ruling our chromaticity and centroid shifts). [truncated! Please see actual data for full text]

目标赤经（J2000）：279.147095°，目标赤纬（J2000）：16.45242°，盖亚G星等（Gaia GMag）：11.05，项目编号：CH_PR149000，项目主管：奥斯本（OSBORN），观测项目首席研究员：本兹（Benz），项目名称：SoM - CHeops And TEss Validate Unconfirmed eXoplanets。摘要：绝大多数凌日系外行星巡天卫星（Transiting Exoplanet Survey Satellite, TESS）的目标天体（TESS Objects of Interest, TOIs）尚未得到证认，部分原因在于缺乏后续观测支持。此类候选体数量极其庞大，即便通过严格筛选以确保目标为小型行星，仍有大量未确认的TESS候选体在任意时段处于凌星状态。CHATEAUX团队提议，在优先级更高的时间敏感型CHEOPS观测间隙，对经过筛选与排序的TESS目标天体集合开展时间敏感型P3级CHEOPS观测。我们预计这些“填充式”观测将为TESS候选体带来极具科学价值的成果，包括轨道历元精化、凌星时间变化（Transit Timing Variations, TTV）探测、半径测量精度提升，以及假阳性概率优化——这得益于我们可通过观测排除色度效应与质心偏移的干扰。【内容已截断！完整文本请查阅原始数据】