Post Launch Cluster Ops 10/09 Extension

启动后 Cluster Ops 10/09 扩展

• 批准号: ST/H004076/1
• 负责人: Hugo Alleyne
• 金额: $ 7.46万
• 依托单位: University of Sheffield
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2009
• 资助国家: 英国
• 起止时间: 2009 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FH004076%2F1
• 关键词: Post; Launch; Cluster; Ops; 10

The Cluster mission is an ESA cornerstone mission with the objective to make major breakthroughs in our understanding of how the Earth's magnetosphere works, the Earth's response to changing solar-wind conditions, internal instabilities and the influence exerted by the ionosphere. Cluster was launched in 2000 and began operations in February 2001. ESA has extended the mission at least to the end of 2009. Cluster provides a unique capability to measure important characteristics of the plasma environment. Cluster is a core facility for the delivery of the Solar System strategy addressing the themes of energy flow in the Solar System and understanding fundamental plasma processes. The Digital Wave Processor, DWP, instrument is one of the three UK PI instruments to be flown on the four Cluster satellites. DWP is one of the five experiments (DWP, STAFF, EFW, WHISPER, and WBD) that together comprise the Wave Experiment Consortium (WEC). The WEC was formed to allow the sharing of resources and skills available within the community The WEC comprises a complicated set of instruments that share several of the resources available on the spacecraft such as electrical power, data rate and the use of booms and sensors. The WEC forms almost half of the scientific payload on each of the spacecraft. One of the WEC instruments (WBD) makes use of the NASA DSN (Deep Space Network) to collect much of its data. This is done to a schedule that overlaps with the schedule for data collection by the ESA ground stations. The resource sharing of the WEC, use of DSN and importance of WEC data, make both the instrument scheduling and data handling (including validation) complicated and of importance to the success of the mission. The DWP PI and team have been active in project-wide activities to co-ordinate operations, data handling and science planning. Operations of the WEC are co-ordinated by the WEC Operation Group which is chaired by the DWP PI. The UK is the lead contributor to the scientific exploitation and data handling on this mission. PI institutes are responsible for the instrument operation and provision to the Cluster Active Archive (CAA) of the highest resolution data, with supporting metadata and documentation. The DWP provides integrated commanding, synchronisation and on-board data processing for the WEC. Without this instrument 20 of the 41 Cluster instruments would not operate, including the only NASA led instrument on the mission, WBD. The UK through the DWP gains access to data from all 5 wave experiments in the WEC. Waves and electromagnetic field structures are fundamental in controlling all processes of physical change in the magnetospheric and solar wind plasma. The DWP also contains the UK particle correlator experiment which directly measures particle wave interactions and kinetic turbulence.

群集任务是ESA基石任务，目的是在我们对地球磁层如何工作的理解，地球对改变太阳风条件，内部不稳定性以及电离层施加的影响方面的反应方面做出重大突破。 Cluster于2000年启动，并于2001年2月开始运营。ESA至少将任务扩展到了2009年底。集群提供了独特的能力来衡量等离子体环境的重要特征。群集是交付太阳系策略的核心设施，该战略解决了太阳系中的能量流程主题并了解基本的等离子体过程。数字波处理器DWP，仪器是在四个集群卫星上飞行的三种UK PI仪器之一。 DWP是五个实验（DWP，员工，EFW，Whisper和WBD）之一，它共同组成了Wave实验联盟（WEC）。 wec的成立是为了允许社区中可用的资源和技能共享WEC中，WEC包括一组复杂的工具，它们共享了航天器上可用的几种资源，例如电力，数据速率，数据速率以及繁荣和传感器的使用。 WEC在每个航天器上几乎构成了科学有效载荷的一半。其中一种WEC仪器（WBD）利用NASA DSN（Deep Space Network）收集其许多数据。这是按照ESA地面站与数据收集时间表重叠的时间表进行的。 WEC的资源共享，使用DSN和WEC数据的重要性，使工具调度和数据处理（包括验证）复杂，并且对任务成功的重要性。 DWP PI和团队一直积极从事项目范围的活动，以协调运营，数据处理和科学计划。 WEC的运营由由DWP PI主持的WEC运营集团协调。英国是该任务的科学剥削和数据处理的主要贡献者。 PI Institutes负责使用支持元数据和文档的最高分辨率数据集群活动存档（CAA）的仪器操作和配置。 DWP为WEC提供了集成的命令，同步和板上数据处理。如果没有该工具，则41个集群仪器中的20个将无法运行，其中包括任务中唯一的NASA LED仪器WBD。英国通过DWP从WEC中所有5个Wave实验中获得了数据访问。波和电磁场结构是控制磁层和太阳风血浆中物理变化的所有过程的基础。 DWP还包含英国粒子相关器实验，该实验直接测量了粒子波相互作用和动力学湍流。