【24h】

Analyses of GOES 13 EUV 5-channel spectra

机译:GOES 13 EUV 5通道光谱分析

获取原文
获取原文并翻译 | 示例

摘要

The first of the Geo-stationary Operational Environmental Satellites (GOES) -NO/P series, built by Boeing Satellite Systems was launched on May 24, 2006. The spacecraft, now on-orbit and referred as GOES-13, carries an Earth Imager, Sounder and a collection of space environment monitors (SEM) including, for the first time, a solar Extreme Ultraviolet (EUV) telescope. The five-channel EUV telescope measures the solar EUV energies in five wavelength bands from 5 nm to 135 nm. We analyze the data from the five EUV channels, collected by the Post Launch Telemetry (PLT) tests, and compare it to the predictions of precise optical models of the instrument, using two modeling software- ZEMAX and FRED. From our models we detected a misalignment between the SXI and the XRS/EUV bore-sights that were off by approximately 0.25 degree. The reference solar irradiation between 1-140 nm in our model was acquired from the TIMED data taken at the same time as the GOES data. When corrected by the appropriate calibration factors, all 5 channels agreed reasonably well with the TIMED data at zero degree angle of incidence. As expected, the instruments' responses changed by more than 5% as a function of azimuth angles away from the Sun center. These changes in irradiation values as a function of angle could be corrected to the values at normal incidence using photometrical accurate optical models of the EUV instrument.
机译:由波音卫星系统公司制造的首个对地静止业务环境卫星(GOES)-NO / P系列于2006年5月24日发射升空。该航天器现已在轨,被称为GOES-13,带有地球成像仪。 ,发声器和一系列太空环境监测器(SEM),其中包括首次使用太阳极端紫外线(EUV)望远镜。五通道EUV望远镜在5 nm至135 nm的五个波长带中测量太阳能EUV能量。我们分析了发射后遥测(PLT)测试收集的来自五个EUV通道的数据,并使用两个建模软件ZEMAX和FRED将其与仪器的精确光学模型的预测进行了比较。从我们的模型中,我们检测到SXI和XRS / EUV视轴之间的偏差大约为0.25度。从与GOES数据同时获取的TIMED数据中获取了我们模型中1-140 nm之间的参考太阳辐射。当通过适当的校准因子校正后,所有5个通道在零度入射角下都与TIMED数据相当吻合。正如预期的那样,仪器的响应随远离太阳中心的方位角变化超过5%。可以使用EUV仪器的光度学精确光学模型将这些辐射值随角度的变化校正为法向入射时的值。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号