PLATO输入目录用于技术校准和精细引导
PLATO input catalogs for technical calibration and fine guidance
AI总结：
本文介绍了PLATO任务中用于技术校准和精细引导的输入目录的选择标准及其对校准目录构建的影响，涵盖71671颗恒星和2640颗引导星。
摘要：
PLATO航天器在发射数周后预计开始其载荷验证，此阶段将在任务前三个月内完成。此阶段包括在轨验证、校准和仪器配置，以准备正常科学操作。在此关键任务期间，以及之后在常规航天器旋转和重新指向时，需要一组参考星来完成各种校准步骤。该集合称为校准PLATO输入目录（cPIC），是PIC的一部分。cPIC包含各种恒星样本，每个样本服务于特定的技术校准目的，并包含71671颗独特的恒星目标，覆盖PLATO的整个视场（FoV）。一旦航天器开始科学观测，机载精细引导系统（FGS）将依赖少量引导星。这些星必须特别明亮，并将使用两个快相机进行观测，这些相机仅覆盖PLATO FoV的较小中央区域。此目标列表称为精细引导PLATO输入目录（fgPIC），包含2640颗独特的目标，其中约30颗由FGS在任一时间使用。本文介绍了cPIC和fgPIC的选择标准，并评估了它们对PLATO校准目录构建的影响。
英文摘要：
A few weeks after launch, the PLATO spacecraft is expected to start its payload commissioning, which will be completed within the first three months of the mission. This phase includes the in-orbit verification, calibration, and configuration of the instrument prior to nominal science operations. During this mission-critical period, and again later during regular spacecraft rotations and re-pointings, a set of reference stars is required to complete various calibration steps. This set, referred to as the calibration PLATO Input Catalog (cPIC), is part of the PIC. The cPIC comprises various stellar samples, each serving a dedicated technical calibration purpose, and it contains 71671 unique stellar targets across PLATO's entire field of view (FoV). Once the spacecraft commences science observations, the on-board Fine Guidance System (FGS) will rely on a small set of guide stars. These stars must be particularly bright and will be observed with the two fast cameras, which cover only a smaller central region of PLATO's FoV. This target list, referred to as the fine-guidance PLATO Input Catalog (fgPIC), contains 2640 unique targets, of which about 30 are used by the FGS at any given time. In this paper, we present the selection criteria for both the cPIC and the fgPIC, and asses their impact on the construction of these calibration catalogs for PLATO.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
