By Topic

L2-James Webb Space Telescope operationally friendly environment?

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Gal-Edd, J. ; NASA/Goddard Space Flight Center, Greenbelt, MD, USA ; Fatig, C.C.

One of the key components for James Webb Space Telescope (JWST) to meet its science goals is the second Lagrange point (L2) environment. This 'operationally friendly' environment provides JWST a dark, cold, and stable orbit to view the first starlight of the Universe. The environment assists the science instruments with passive cooling, limited stray light, and large contact times with Earth to increase the efficiency of the JWST. Now that JWST is moving into the design/construction phase, we are finding that the initial concepts now require a more detailed examination. We are finding that L2 has some issues that impact cost and operational friendliness. This paper will address some of these L2 environment challenges currently being reviewed: cosmic ray environment, communications, and orbit maintenance and determination. To address the above L2 environment concerns, the JWST spacecraft and science planning system requires adjustment to the onboard 'event driven' planning. As the spacecraft buildup continues, the challenges of communicating from L2 will be met so that JWST will see the first starlight in the Universe. The communication items will be covered in other papers during this conference.

Published in:

Aerospace Conference, 2004. Proceedings. 2004 IEEE  (Volume:1 )

Date of Conference:

6-13 March 2004