High-resolution Ionospheric and Thermospheric Spectrograph (HITS) on the Advanced Research and Global Observing Satellite (ARGOS): quick look results
High-resolution Ionospheric and Thermospheric Spectrograph (HITS) on the Advanced Research and Global Observing Satellite (ARGOS): quick look results
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高级研究和全球观测卫星 (ARGOS) 上的高分辨率电离层和热层摄谱仪 (HITS)：快速查看结果
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
R. McCoy
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文献类型：
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作者：
K. Dymond;K. Wolfram;S. Budzien;C. B. Fortna;R. McCoy
高分辨率电离层和热层光谱仪(HITS)是一种非常高分辨率(在500-1500埃通带范围内分辨率为0.5埃)罗兰环行光谱仪，目前正在美国空军高级研究和全球观测卫星(ARGOS，1999年2月23日发射)上飞行。Argos处于太阳同步的近极轨道上，高度为833公里，上升节点穿越时间为下午2：30该仪器旨在对834埃三重态进行光谱分辨，以展示一种遥测F区电离层电子密度的新技术。此外，HITS还可以从光谱上解析出N_2 Lyman-Birge-Hopfield带的转动结构，从而可以用来推断热层温度。HITS可以分解O+离子和电子复合产生的辐射复合连续谱，可以用来推断电子温度。HITS还将产生500-1000埃通带的高光谱分辨率阵列，以更准确地识别一些以前未分辨的日光光谱特征。该仪器作为肢体成像仪运行，在预期的三年任务寿命中，每100秒进行一次肢体扫描。其视野为0.06度(S)×4.6度(S)，相当于肢体3公里(海拔)×230公里(沿地平线)。该仪器的视场为17度(S)×4.6度(S)，覆盖100-750公里的高度范围。我们将介绍该仪器的概述，并讨论其校准和飞行性能。
The High-resolution Ionospheric and Thermospheric Spectrograph (HITS) is a very high resolution (> 0.5 angstroms resolution over the 500 - 1500 angstroms passband) Rowland circle spectrograph that is currently flying on the USAF Advanced Research and Global Observing Satellite (ARGOS, launched 23 February 1999). The ARGOS is in a sun- synchronous, near-polar orbit at 833 km altitude with an ascending node crossing time of 2:30 PM. The instrument is designed to spectrally resolve the 834 angstroms triplet to demonstrate a new technique for remotely sensing the electron density in the F-region ionosphere. In addition, the HITS can spectrally resolve the rotational structure of the N2 Lyman-Birge-Hopfield bands, which can be used to infer the thermospheric temperature. The HITS can resolve the radiative recombination continuum produced by recombining O+ ions and electrons, which can be used to infer the electron temperature. The HITS will also produce a high spectral resolution array of the 500 - 1000 angstroms passband to produce a more accurate identification of some of the previously unresolved features of the dayglow spectrum. The instrument operates as a limb imager with a limb scan occurring every 100 seconds throughout the expected three year mission life. Its field-of-view is 0.06 degree(s) X 4.6 degree(s), which corresponds to 3 km (altitude) X 230 km (along the horizon) at the limb. The instrument's field-of-regard is 17 degree(s) X 4.6 degree(s), which covers the 100 - 750 km altitude range. We will present an overview of the instrument and discuss its calibration and in-flight performance.