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首页> 外文会议>Conference on Sensors, Systems, and Next-Generation Satellites VI Sep 23-26, 2002 Agia Pelagia, Crete, Greece >Early On-orbit Calibration Results from Aqua MODIS
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Early On-orbit Calibration Results from Aqua MODIS

机译：Aqua MODIS的早期在轨校准结果

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摘要

Aqua MODIS, also known as the MODIS Flight Model 1 (FM1), was launched on May 4, 2002. It opened its nadir aperture door (NAD) on June 24, 2002, beginning its Earth observing mission. In this paper, we present early results from Aqua MODIS on-orbit calibration and characterization and assess the instrument s overall performance. MODIS has 36 spectral bands located on four focal plane assemblies (FPAs). Bands 1-19, and 26 with wavelengths from 0.412μ to 2.1μ are the reflective solar bands (RSB) that are calibrated on-orbit by a solar diffuser (SD). The degradation of the SD is tracked using a solar diffuser stability monitor (SDSM). The bands 20-25, and 27-36 with wavelengths from 3.75μ to 14.5μ are the thermal emissive bands (TEB) that are calibrated on-orbit by a blackbody (BB). Early results indicate that the on-orbit performance has been in good agreement with the predications determined from pre-launch measurements. Except for band 21, the low gain fire band, band 6, known to have some inoperable detectors from pre-launch characterization, and one noisy detector in band 36, all of the detectors noise characterizations are within their specifications. Examples of the sensor s short-term and limited long-term responses in both TEB and RSB will be provided to illustrate the sensor s on-orbit stability. In addition, we will show some of the improvements that Aqua MODIS made over its predecessor, Terra MODIS (Protoflight Model - PFM), such as removal of the optical leak into the long-wave infrared (LWIR) photoconductive (PC) bands and reduction of electronic crosstalk and out-of-band (OOB) thermal leak into the short-wave infrared (SWIR) bands.
机译：Aqua MODIS，也称为MODIS飞行模型1（FM1），于2002年5月4日发射升空。它于2002年6月24日打开了天底开口门（NAD），开始了地球观测任务。在本文中，我们介绍了Aqua MODIS在轨校准和表征的早期结果，并评估了仪器的整体性能。 MODIS在四个焦平面组件（FPA）上有36个光谱带。波长从0.412μ到2.1μ的1-19和26波段是反射太阳波段（RSB），由太阳漫射器（SD）在轨道上校准。使用太阳能扩散器稳定性监控器（SDSM）跟踪SD的降级。波长从3.75μ到14.5μ的波段20-25和27-36是由黑体（BB）在轨校准的热发射波段（TEB）。早期结果表明，在轨性能与从发射前的测量确定的预测非常吻合。除了频段21，低增益发射频段（频段6），该频段在发射前特性中已知有一些不可操作的检测器，在频段36中具有一个噪声检测器，所有这些检测器的噪声特性均在其规格范围内。将提供TEB和RSB中传感器短期和有限长期响应的示例，以说明传感器的在轨稳定性。此外，我们还将展示Aqua MODIS在其前身Terra MODIS（Protoflight模型-PFM）上所做的一些改进，例如消除长波红外（LWIR）光电导（PC）波段中的光泄漏并减少电子串扰和带外（OOB）热泄漏到短波红外（SWIR）波段的影响。

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