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Origins Space Telescope integration and testing
Journal of Astronomical Telescopes, Instruments, and Systems ( IF 2.3 ) Pub Date : 2020-10-01 , DOI: 10.1117/1.jatis.6.4.041502
Susanna Petro 1
Affiliation  

I describe the plans, flows, key facilities, test beds, pathfinders, simulators, and ground support equipment that could be used to fully integrate, functionally test, and qualify the Origins Space Telescope (Origins). The Origins observatory consists of the spacecraft bus module and the cryogenic payload module, which comprises the telescope and three science instruments. The telescope is a three-mirror anastigmat and is composed of four mirrors: three with optical power (the elliptical primary, hyperbolic secondary, and elliptical tertiary mirrors) and a flat field-steering mirror. The three science instruments spanning the wavelength range 2.8 to 588 μm provide the powerful new spectroscopic and imaging capabilities required to achieve the scientific objectives. The Origins Survey Spectrometer uses six gratings in parallel to take multibeam spectra simultaneously across the 25- to 588-μm window through long slits enabling deep three-dimensional extragalactic surveys. The far-IR imager/polarimeter provides imaging and polarimetric measurement capabilities at 50 and 250 μm. Its fast mapping enables rapid follow-up of transient or variable sources and efficient monitoring campaigns. The mid-infrared spectrometer simultaneously provides spectroscopy over 2.8 to 20 μm with exquisite stability and precision (<5 ppm between 2.8 and 10 μm, <20 ppm between 11 to 20 μm). All the instruments are delivered for integration and test fully qualified and calibrated. The integration and test program implemented at each level of assembly is discussed as well as the separation of thermal vacuum testing between the hot and cold zones of the observatory.

中文翻译:

Origins Space Telescope的整合和测试

我描述了计划,流程,关键设施,测试台,探路者,模拟器和地面支持设备,这些设备可用于完全集成,功能测试和验证Origins太空望远镜(起源)。起源天文台由航天器总线模块和低温有效载荷模块组成,该模块包括望远镜和三种科学仪器。望远镜是三反射镜,由四个反射镜组成:三个具有光焦度的反射镜(椭圆形的主镜,双曲形的辅助镜和椭圆形的三级镜)和一个平面场转向镜。三种波长范围为2.8至588μm的科学仪器提供了实现科学目标所需的强大的新光谱和成像功能。Origins Survey Spectrometer使用六个平行的光栅,通过长缝同时在25到588μm的窗口中同时采集多光束光谱,从而可以进行深层三维河外测量。远红外成像仪/旋光仪提供50和250μm的成像和偏振测量功能。它的快速映射可以快速跟踪瞬态或可变源,并进行有效的监视活动。中红外光谱仪可同时提供2.8至20μm的光谱,并具有出色的稳定性和精度(2.8至10μm之间<5 ppm,11至20μm之间<20 ppm)。交付的所有仪器均经过集成和测试,并经过全面鉴定和校准。
更新日期:2020-10-11
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