NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
ATLAST-9.2: A Deployable Large Aperture UVOIR Space TelescopeWe present the results of a study of a deployable version of the Advanced Technology Large Aperture Space Telescope (ATLAST) that could be launched on an Evolved Expendable Launch Vehicle (EELV). ATLAST is a concept for a next-generation UVOIR observatory to follow HST and JWST. The observatory retains significant heritage from JWST, thereby taking advantage of technologies and engineering already developed for that mission. At the same time, we have identified several design changes to the JWST architecture, some of which are required due to the demanding wavefront error requirements at visible wavelengths. The optical telescope assembly has a segmented 9.2-meter aperture and consists of 36 hexagonal glass mirrors, each of which is I.3l5m in size (flat-to-flat). The telescope can be folded to fit in the 6.5m fairing on the planned upgrade to the Delta-IV heavy launch vehicle. Near-real time wavefront sensing and control is performed on-board the telescope using stars in the field of view to deliver diffraction limited imaging performance at 500nm wavelength. The optical design of the telescope provides an 8x20 arcmin FOV in which 4-5 instruments can be accommodated, plus fine guidance and wavefront sensors. Unlike JWST, the OTA sits at the end of a multi-gimbaled arm, allowing pitch and roll motion, and is isolated from the sunshield and spacecraft bus by an active isolation system. Our design permits servicing in order to extend the life of the observatory.
Document ID
20100002906
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Oegerle, William R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Feinberg, L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Purves, L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hyde, T. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Thronson, H. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Townsend, J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Postman, M. (Space Telescope Science Inst. Baltimore, MD, United States)
Bolcar, M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Budinoff, J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Dean, B. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Clampin, N. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Ebbets, D. (Ball Aerospace Systems Div. United States)
Gong, Q. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Gull, T. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Howard, J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Jones, A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lyon, R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Pasquale, B. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Perrygo, C. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Smith, S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Thompson, P. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Woodgate, B. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 25, 2013
Publication Date
January 7, 2010
Subject Category
Astronomy
Meeting Information
Meeting: 215th American Astronomical Society Conference
Location: Washington, DC
Country: United States
Start Date: January 3, 2010
End Date: January 7, 2010
Sponsors: American Astronomical Society
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.

Related Records

There are no records associated with this record.
No Preview Available