OASIS architecture: key features

Jonathan W. Arenberg; Michaela N. Villareal; Jud Yamane; Tony Yu; Justin Lazear; John Pohner; Mitchell Sangalis; Steven L. Jackson; Elisabeth Morse; Ryan Tyler; Pradipto Ghosh; Art Palisoc; Christopher K. Walker; Yuzuru Takashima; Daewook Kim; Siddhartha Sirsi; Aman Chandra

doi:10.1117/12.2594681

24 August 2021 OASIS architecture: key features

Jonathan W. Arenberg, Michaela N. Villareal, Jud Yamane, Tony Yu, Justin Lazear, John Pohner, Mitchell Sangalis, Steven L. Jackson, Elisabeth Morse, Ryan Tyler, Pradipto Ghosh, Art Palisoc, Christopher K. Walker, Yuzuru Takashima, Daewook Kim, Siddhartha Sirsi, Aman Chandra

Author Affiliations +

Proceedings Volume 11820, Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems III; 118200S (2021) https://doi.org/10.1117/12.2594681
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

Orbiting Astronomical Satellite for Investigating Stellar Systems (OASIS) is a mission concept being developed in preparation for the 2021 MidEX Announcement of Opportunity. This paper describes the key features of the OASIS architecture as they are currently understood. OASIS’s choice of a large inflatable primary reflector results in large collection areas at very high mass efficiency enabling the science mission. We describe the spacecraft bus, based on Northrop Grumman’s LEOstar-2, and the receiver, a heritage design based on the GUSTO balloon heterodyne system. We also discuss the observing strategy and pointing requirements from its planned L1 location. Particular emphasis is placed on challenges to the design, such as momentum management, balancing consumable mass allocations, thermal management, and testing.

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Jonathan W. Arenberg, Michaela N. Villareal, Jud Yamane, Tony Yu, Justin Lazear, John Pohner, Mitchell Sangalis, Steven L. Jackson, Elisabeth Morse, Ryan Tyler, Pradipto Ghosh, Art Palisoc, Christopher K. Walker, Yuzuru Takashima, Daewook Kim, Siddhartha Sirsi, and Aman Chandra "OASIS architecture: key features", Proc. SPIE 11820, Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems III, 118200S (24 August 2021); https://doi.org/10.1117/12.2594681

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