The CHANDRA X-Ray Observatory: Thermal Design, Verification, and Early Orbit Experience Harvard-Smithsonian Center for Astrophysics

Format:

Book

Conference/Event

Author/Creator:

Boyd, David A., author.

Conference Name:

International Conference On Environmental Systems (2000-07-10 : Toulouse, France)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2000

Summary:

The CHANDRA X-ray Observatory (formerly AXAF), one of NASA's "Great Observatories" was launched aboard the Shuttle in July 1999. CHANDRA comprises a grazing-incidence X-ray telescope of unprecedented focal length, collecting area and angular resolution - better than two orders of magnitude improvement in imaging performance over any previous soft X-ray (0.1-10 keV) mission. Two focal-plane instruments, one with a 150°K passively-cooled detector, provide celestial X-ray images and spectra.Thermal control of CHANDRA includes active systems for the telescope mirror and environment and the optical bench, and largely passive systems for the focal plane instruments. Performance testing of these thermal control systems required 1-1/2 years at increasing levels of integration, culminating in thermal-balance testing of the fully-configured observatory during the summer of 1998. This paper outlines details of thermal design tradeoffs and methods for both the Observatory and the two focal-plane instruments, the thermal verification philosophy of the Chandra program (what to test and at what level), and summarizes the results of the instrument, optical system and observatory testing

Notes:

Vendor supplied data

Publisher Number:

2000-01-2373

Access Restriction:

Restricted for use by site license