Please use the Transfers Page for information on data transfer.
See the Modules Page
Please enter any significant events related to the AuScope VLBI project, including observations, configuration changes, hardware upgrades etc.
Pointing offset of ~-0.04 deg seen in Elevation. Updated parameter P7 as follows prior to R4538:
P7 = 0.5194 - 0.04 = 0.4794
During the Hobart miniTOW overheating of the rear pci cards was discussed. It was decided that the clear front panels should be re-installed to provide the correct airflow to the rear boards.
15/6/2012 - Front panel reinstalled on Hb dbbc. Now good airflow through rear slots.
20/6/2012 - Front panel reinstalled on Yg dbbc. Air exiting rear slots now much stronger and cooler.
The MET4A weather station is now being monitored and logged by pcfsyg. Software installation notes can be found here.
Weather data (temp, humid, pressure) are logged in /usr2/log/wx/, can be examined by typing wth (or wx) in the Field System while it's running.
It's also visible in Monica
During the NZ trip, Gino advised us that the DBBC performance could be improved by adjusting the DBBCIF power targets. The recommended method was to adjust the IF powers by changing the attenuation to maximise the apparent aplitude of a tone in the BBC channels. This has been carried out for Hb, Ke and Yg, using the pcal tones as a reference. The improvement in apparent magnitude (as estimated through Haystack's bpcal software) ranges between ~30 - 300% over the default values. The table below lists the new targets. A test is planned to see if the improvements in apparent magnitude of the tones carries across to an improved SNR in VLBI observations.
Hb CoMo | Previous Target | New Target |
---|---|---|
A | 55000 | 32000 |
B | 55000 | 40000 |
C | 55000 | 30000 |
D | 55000 | 30000 |
Ke CoMo | Previous Target | New Target |
---|---|---|
A | 55000 | 35000 |
B | 55000 | 28000 |
C | 55000 | 28000 |
D | 51000 | 40000 |
Yg CoMo | Previous Target | New Target |
---|---|---|
A | 55000 | 26000 |
B | 55000 | 26000 |
C | 55000 | 45000 |
D | 55000 | 31000 |