Note: Only forum leaders may delete posts.
*HTML is ON *UBB Code is ON Smilies Legend
Smilies Legend
[b]Chandra Operations Resume After Cause of Safe Mode Identified[/b] The cause of Chandra's safe mode on October 10 has now been understood and the Operations team has successfully returned the spacecraft to its normal pointing mode. The safe mode was caused by a glitch in one of Chandra's gyroscopes resulting in a 3-second period of bad data that in turn led the on-board computer to calculate an incorrect value for the spacecraft momentum. The erroneous momentum indication then triggered the safe mode. The team has completed plans to switch gyroscopes and place the gyroscope that experienced the glitch in reserve. Once configured with a series of pre-tested flight software patches, the team will return Chandra to science operations which are expected to commence by next week.
Contact Us | The Source for Space History & Artifacts
Copyright 1999-2024 collectSPACE. All rights reserved.