2104007

Target RA (J2000): 197.317459 and deg Target Dec (J2000): -60.30836 and deg Gaia GMag: 8.09 Programme ID: CH_PR100017 Programme Manager: PAGANO PI of observing programme: Benz Title of programme: ANCILLARY SCIENCE - Recovering ephemeris Abstract: There are a number (about 2 tens) of transiting planetst of interest for follow-up characterizing measurements (JWST E-ELT) whose ephemeris must be recovered before going with large facilities and this can be done by CHEOPS. It is proposed to monitor one transit per target the observing window centered on the transit time predicted by the best available ephemeris and lasting two times the uncertainty on T0 plus the transit duration. Target list and target priority shall be modified according to results from K2 and TESS campaigns. [truncated! Please see actual data for full text]

目标赤经（J2000.0坐标系）：197.317459 度；目标赤纬（J2000.0坐标系）：-60.30836 度；盖亚（Gaia）G星等：8.09；项目编号：CH_PR100017；项目主管：帕加诺（Pagano）；观测项目首席研究员：本茨（Benz）；项目名称：辅助科学——恢复星历表。
摘要：当前存在约二十余个具备后续特性表征测量（詹姆斯·韦伯太空望远镜JWST、极大望远镜E-ELT）研究价值的凌星行星，其星历需在投入大型观测设施开展研究前完成校准，该任务可通过CHEOPS完成。本提案提议对每个目标观测一次凌星：观测窗口以当前最优星历预测的凌星时刻为中心，时长为T0不确定度的两倍与凌星持续时间之和。目标列表及观测优先级将依据K2与TESS巡天项目的结果进行调整。
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