Stray and scattered light properties of the Juno ultraviolet spectrograph

Michael W. Davis; G. Randall Gladstone; Thomas K. Greathouse; Vincent Hue; Maarten H. Versteeg

doi:10.1117/12.2312141

6 July 2018 Stray and scattered light properties of the Juno ultraviolet spectrograph

Michael W. Davis, G. Randall Gladstone, Thomas K. Greathouse, Vincent Hue, Maarten H. Versteeg

Proceedings Volume 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray; 106990J (2018) https://doi.org/10.1117/12.2312141
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

We describe the stray and scattered light properties of the Juno Ultraviolet Spectrograph (Juno-UVS). Juno-UVS is a modest-powered (9.0 W) instrument that is designed to characterize Jupiter’s auroral emissions and relate them to in situ measurements made by Juno’s particle and wave instruments. A notable scattered light feature has been discovered during UVS operations; a minor solar glint that reveals itself during specific spacecraft orientations when the spin axis is pointed a certain angle away from the sun. This scattered light feature has become more important now that the Juno mission has decided to stay in its 53-day parking orbit instead of transitioning to the planned 14-day science orbit. The impact of the scattered light feature on future instrument operations is discussed.

Conference Presentation

Citation Download Citation

Michael W. Davis, G. Randall Gladstone, Thomas K. Greathouse, Vincent Hue, and Maarten H. Versteeg "Stray and scattered light properties of the Juno ultraviolet spectrograph", Proc. SPIE 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray, 106990J (6 July 2018); https://doi.org/10.1117/12.2312141

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