欧洲航天局（ESA）系外行星特征探测卫星（CHEOPS）任务即将启动第六次观测机会征集公告（AO-6）。本次征集将面向全球科研人员开放访客观测者计划（GO计划）的研究提案提交。
关于CHEOPS
CHEOPS卫星于2019年发射，主要科学任务是对已知系外行星, 包括地面和空间发现的系外行星, 进行精密观测。该卫星通过对系外行星的精确观测, 结合其他设备此前已获得的数据，从而确定目标行星的质量、密度、大气成分等物质构成。此外，CHEOPS卫星还将为后续探测任务筛选出适合深入研究的候选目标。
图1 CHEOPS卫星
观测申请
- 申请日期：AO-6观测申请征集将于2025年3月18日 (12:00 CET)开放，2025年5月8日(12:00 CEST)截止。
- 观测周期：入选提案将参与2025年10月1日至2026年9月30日的观测周期。该时段正值CHEOPS卫星首个任务延长期的最后一年。
- 科学机会：CHEOPS卫星为科研团队提供了基于空间定向的超高精度测光观测能力。其核心研究领域涵盖系外行星凌星、食相、掩星及相位曲线观测。此外，科学目标还可拓展至系外卫星探测、行星环结构分析、恒星活动监测、海外天体研究等前沿方向。
- 协同合作：多个空间与地面观测项目在时间窗口上的重叠，或将催生极具价值的协同观测机遇，可与詹姆斯·韦布空间望远镜（NASA/ESA/CSA）、哈勃空间望远镜（NASA/ESA）、凌星系外行星巡天卫星（NASA-TESS）、欧洲南方天文台（ESO）地面观测设施等平台形成观测矩阵。
- 第六次观测机会的创新点：
- 观测目标增量：仅保留50个已预先计划好的保证时间观测（GTO）目标，其余全部向全球科研界开放
- 观测时间增加：为访客观测者计划（GO Programme）分配高达30%的科学观测时间（约1500个轨次）
- 评审机制更新：实施提案双盲评审制度
- 提案工具升级：推出基于云平台的可视化分析工具与ETC（曝光时间计算器）网页工具
- 提案相关操作培训线上直播安排：
我们计划于2025年3月至4月期间，跨时区举办多场实时操作指导培训，逐步解析观测提案准备与提交全流程，并答疑解惑。如您希望参与直播互动或观看录播回放，请访问下方链接完成注册：https://www.cosmos.esa.int/web/cheops-guest-observers-programme/hands-on-tutorials
了解更多：
- CHEOPS官网：https://www.cosmos.esa.int/web/cheops
- GO Programme更新：https://www.cosmos.esa.int/web/cheops-guest-observers-programme
- 联系邮箱：cheops-support@cosmos.esa.int
祝您提案顺利！
英文原稿为权威资料来源，中文内容为方便读者阅读由本网站提供，仅供参考。以下为英文原文：
Save the date for CHEOPS Guest Observers 6th Announcement of Opportunity !
The European Space Agency’s (ESA’s) Characterising Exoplanet Satellite (CHEOPS) mission foresees its 6th Announcement of Opportunity (AO-6). This Call will invite the submission of research proposals to the Guest Observers (GO) Programme.
Key Dates: The AO-6 Call is foreseen to open on the 18 March 2025 (12:00 CET) and close on the 8 May 2025 (12:00 CEST).
Observing Cycle: The selected proposals will be part of the observing cycle from 1 October 2025 to 30 September 2026. This period marks the last year of the first mission extension of CHEOPS.
Scientific Opportunities: CHEOPS provides observers with access to space-based pointed ultra-high precision photometry. Research areas include the observations of exoplanet transits, eclipses, occultations, and phase curves. Furthermore, the scientific scope may extend to phenomena such as exomoons, ring structures, stellar activity, trans-Neptunian objects or more.
Collaborative Synergies: The timely overlap of several space- and ground-based missions may provide exciting opportunities for synergies with NASA/ESA/CSA JWST, NASA/ESA HST, NASA TESS, ESO ground-based facilities, and more.
Novelties in cycle 6:
- More targets: only 50 GTO reserved targets, with all the rest being open to the entire community
- More time: up to 30% science observing time (around 1500 orbits) dedicated to the GO Programme
- Double-anonymous peer-review of proposals
- Zero-installation tools: cloud-based visibility and ETC web tools
Live hands-on tutorials: We foresee to run hands-on tutorials on March and April 2025 at various time-zones to guide you through the proposal preparation and submission process and answer all your questions. Please register at the link below if you would like to attend or watch the recordings:https://www.cosmos.esa.int/web/cheops-guest-observers-programme/hands-on-tutorials
Find out more about the CHEOPS mission via https://www.cosmos.esa.int/web/cheops, stay up-
to-date about this opportunity via https://www.cosmos.esa.int/web/cheops-guest-observers-programme, and feel free to email us with any questions. We look forward to receiving your observing proposals and advancing our understanding of exoplanetary and stellar systems.
Happy proposing!
Contact: cheops-support@cosmos.esa.int