0000108: The TPs of 4X,4Y(MFFE-16) are unstable.

Viewing Issue Simple Details [ Jump to Notes ]

[ Issue History ] [ Print ]

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(0000140) Hans van der Marel 18-03-09 08:41	Power supply of IVC telescope 4 has been replaced by Hans Weggemans, which appears to solve the stability problem.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