Event-driven James Webb Space Telescope operations using on-board JavaScripts

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

The James Webb Space Telescope (JWST) will use an event-driven system architecture to provide efficient and flexible operations as initiated by a simplified, high-level ground command interface. Event-driven operations is provided through the use of an on-board COTS JavaScript engine hosted within the payload flight software. After presenting the overall software architecture, we summarize the trade study that led to the selection of a commercial JavaScript interpreter and review our experiences developing scripts over the past year. Our script development approach is based upon the process successfully used at Space Telescope Science Institute for the last six Hubble Space Telescope science instruments. The major characteristics of our process are 1) coordinated development of the operational scripts and the flight software, 2) an incremental buildup of the operational requirements, and 3) recurring integrated testing. Our iterative script implementation process addresses how to gather requirements from a geographically dispersed team, and then how to design, build, and test the script software to accommodate the changes that are inevitable as flight hardware is built and tested. The concurrent development of the operational scripts and the flight software enables early and frequent "test-as-you-will-fly" verification, thus reducing the risk of on-orbit software problems.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Event-driven James Webb Space Telescope operations using on-board JavaScripts does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Event-driven James Webb Space Telescope operations using on-board JavaScripts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Event-driven James Webb Space Telescope operations using on-board JavaScripts will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1893472

All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.