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lbaops:lbaoct2016:v544a

v544a

Description Astrometric measurements of the first water fountain planetary nebula
Antennas At-Mp-Cd-Ho-Pa
Start 302 20:00:00
Stop 303 08:59:05
PI Gabor Orosz

Setup v544.1cm-geod:

Station Modes At Mp Cd Ho Pa
Channel 1 IFP#1-LO 22000 - 22016 MHz USB RCP
Channel 2 IFP#1-HI 22016 - 22032 MHz USB RCP
Channel 3 IFP#2-LO 22500 - 22516 MHz USB LCP
Channel 4 IFP#2-HI 22516 - 22532 MHz USB LCP
DAS 1 Skyfreq 22016 & 22516 MHz
Bandwidth 16 MHz
DAS Mode vsop.pro (telescope)

Setup v544.1cm:

Station Modes At Mp Cd Ho Pa
Channel 1 IFP#1-LO 22211 - 22227 MHz USB RCP
Channel 2 IFP#1-HI 22227 - 22243 MHz USB RCP
Channel 3 IFP#2-LO 22211 - 22227 MHz USB LCP
Channel 4 IFP#2-HI 22227 - 22243 MHz USB LCP
DAS 1 Skyfreq 22227 MHz
Bandwidth 16 MHz
DAS Mode vsop.pro (telescope)

Mode changes:
302 20:00:00 v544.1cm
302 21:20:00 v544.1cm-geod
302 22:06:59 v544.1cm
303 02:55:41 v544.1cm-geod
303 03:33:41 v544.1cm
303 08:21:13 v544.1cm-geod

Ftp: ftp://ftp.atnf.csiro.au/pub/people/vlbi/v544/v544a


Comments:

Hobart and Ceduna: The 4 x 16 MHz bandpass setup requires feeding two separate LOs into IFP#1 and #2 on the DAS/frequency translator. For both Hobart and Ceduna the LOs should be set to 706 MHz (IFP#1) and 206 MHz (IFP#2) for the 4 x 16 MHz setup and 495 MHz for the 2 x 16 MHz setup. For Hobart use 16.37 GHz as the Agilent frequency and for Ceduna use 17.47 GHz. For the 4×16 MHz setup 880.2 and 900.2 MHz should give coherence in IF#1 and IF#2 respectively, while for the 2×16 MHz use 888.64 MHz to check coherence (these tones apply for both Hobart and Ceduna).

The level into IF#2 will change significantly between the two setups. Set the level into the DAS so that it is within range for both setups. Setup the system temperature measurement so that it works for both IFs for the v490d.1cm setup - it doesn't matter if the system temperature measurement doesn't work for the second IF during the ICRF observations as these are only to calibrate the delay. Please don't change the attenuation into the DAS when the setup changes as that may change the delay.

Observing comments for each antenna:

Observing Logs

Weather

Monica log information - EXPERIMENTAL:

lbaops/lbaoct2016/v544a.txt · Last modified: 2016/10/27 14:06 by sellings