0000108: The TPs of 4X,4Y(MFFE-16) are unstable.
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ID Category Severity Reproducibility Date Submitted Last Update
0000108 [submission] 0.unknown/unspecified major sometimes 03-03-09 12:49 18-03-09 08:41
Reporter Yuan Tang View Status public  
Assigned To Hans van der Marel
Priority normal Resolution fixed  
Status resolved  
Summary 0000108: The TPs of 4X,4Y(MFFE-16) are unstable.
Description Till now the problem appeared at 6cm and Lband.
To trace and locate the problem some test observations
have been scheduled on tomorrow morning.
Additional Information 20090304:
About the TPs of 4X,4Y(MFFE-16) unstable problem:
The unstable TP can been seen at 6cm,13cm and Lband, and in all bands,
and both X and Y. Which part could cause the problem both at X and at Y?

20090308:
The TPs unstable of 4X,4Y and CX,CY have the similar behaviour.(Why?)
(e.g. see 10901022,10901023)
Attached Files

- Relationships

- Notes
(0000140)
Hans van der Marel
18-03-09 08:41

 Power supply of IVC telescope 4 has been replaced by Hans Weggemans, which appears to solve the stability problem.
 

- Issue History
Date Modified Username Field Change
03-03-09 12:49 Yuan Tang New Issue
03-03-09 12:50 Yuan Tang Status new => testing
03-03-09 12:50 Yuan Tang Description Updated
03-03-09 12:52 Yuan Tang Description Updated
04-03-09 13:48 Yuan Tang Additional Information Updated
08-03-09 14:16 Yuan Tang Additional Information Updated
09-03-09 09:00 Jurjen Sluman Assigned To  => Hans van der Marel
09-03-09 09:00 Jurjen Sluman Status testing => assigned
18-03-09 08:41 Hans van der Marel Status assigned => resolved
18-03-09 08:41 Hans van der Marel Resolution open => fixed
18-03-09 08:41 Hans van der Marel Note Added: 0000140