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Sixteen Years of Terra MODIS On-orbit Operation, Calibration, and Performance

机译：Terra MODIS在轨运行，校准和性能十六年

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摘要

Terra MODIS has successfully operated for more than 16 years since its launch in December 1999. From its observations, many science data products have been generated in support of a broad range of research activities and remote sensing applications. Terra MODIS has operated in a number of configurations and experienced a few anomalies, including spacecraft and instrument related events. MODIS collects data in 36 spectral bands that are calibrated regularly by a set of on-board calibrators for their radiometric, spectral, and spatial performance. Periodic lunar observations and long-term radiometric trending over well-characterized ground targets are also used to support sensor on-orbit calibration. Dedicated efforts made by the MODIS Characterization Support Team (MCST) and continuing support from the MODIS Science Team have contributed to the mission success, enabling well-calibrated data products to be continuously generated and routinely delivered to users worldwide. This paper presents an overview of Terra MODIS mission operations, calibration activities, and instrument performance of the past 16 years. It illustrates and describes the results of key sensor performance parameters derived from on-orbit calibration and characterization, such as signal-to-noise ratio (SNR), noise equivalent temperature difference (NEdT), solar diffuser (SD) degradation, changes in sensor responses, center wavelengths, and band-to-band registration (BBR). Also discussed in this paper are the calibration approaches and strategies developed and implemented in support of MODIS Level 1B data production and re-processing, major challenging issues, and lessons learned.
机译：自1999年12月启动以来，Terra MODIS已经成功运营了16年以上。据观察，已经生成了许多科学数据产品，以支持广泛的研究活动和遥感应用。 Terra MODIS已在多种配置下运行，并经历了一些异常，包括与航天器和仪器有关的事件。 MODIS收集36个光谱带中的数据，这些光谱带由一组车载校准器定期校准，以用于其辐射度，光谱和空间性能。定期的月球观测和在特征明确的地面目标上的长期辐射趋势也用于支持传感器在轨校准。 MODIS表征支持团队（MCST）的不懈努力以及MODIS科学团队的持续支持为任务的成功做出了贡献，从而能够不断生成经过校准的数据产品，并定期向全球用户交付。本文概述了过去16年中Terra MODIS的任务操作，校准活动和仪器性能。它说明并描述了从在轨校准和表征得出的关键传感器性能参数的结果，例如信噪比（SNR），噪声等效温差（NEdT），太阳扩散器（SD）降级，传感器变化响应，中心波长和频带间配准（BBR）。本文还讨论了为支持MODIS Level 1B数据生产和再处理而开发和实施的校准方法和策略，重大挑战性问题以及汲取的教训。

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  • 来源
    《Sensors, systems, and next-generation satellites XX》|2016年|100000V.1-100000V.10|共10页
  • 会议地点 Edinburgh(GB)
  • 作者

    X. Xiong; A. Angal; A. Wu; D. Link; X. Geng; W. Barnes; V. Salomonson;

  • 作者单位

    Sciences and Exploration Directorate, NASA/GSFC, Greenbelt, MD 20771, USA;

    Science Systems and Applications Inc., 10210 Greenbelt Road, Lanham, MD 20706, USA;

    Science Systems and Applications Inc., 10210 Greenbelt Road, Lanham, MD 20706, USA;

    Science Systems and Applications Inc., 10210 Greenbelt Road, Lanham, MD 20706, USA;

    Science Systems and Applications Inc., 10210 Greenbelt Road, Lanham, MD 20706, USA;

    University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA;

    University of Utah, Salt Lake City, UT 84112, USA;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Terra; MODIS; Calibration; Solar Diffuser; Blackbody; Stability Monitor; Moon; SRCA;

    机译：Terra； MODIS;校准;太阳能扩散器；黑体稳定性监控器；月亮; SRCA;

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