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lbaops:lbajun2016:v255ab

v255ab

Description Proper motion and Parallax of Methanol Masers: A search for infalling ga
Antennas At-Cd-Ho-Mp-Wa-Hh
Start 179 13:00:00
Stop 180 14:00:00
PI S.P. Ellingsen

Setup v255ab.5cm-icrf:

Station Modes At Cd Ho Mp
Channel 1 IFP#1-LO 6300 - 6316 MHz USB RCP
Channel 2 IFP#1-HI 6316 - 6332 MHz USB RCP
Channel 3 IFP#2-LO 6642 - 6658 MHz USB LCP
Channel 4 IFP#2-HI 6658 - 6674 MHz USB LCP
DAS 1 Skyfreq 6316 & 6658 MHz
Bandwidth 16 MHz
DAS Mode vsop.pro (telescope)
Station Modes Wa Hh
Channel 1 6300 - 6316 MHz USB RCP
Channel 2 6316 - 6332 MHz USB RCP
Channel 3 6642 - 6658 MHz USB LCP
Channel 4 6658 - 6674 MHz USB LCP
Bandwidth 16 MHz
DAS Mode Mark5

Setup v255ab.5cm:

Station Modes At Cd Ho Mp
Channel 1 IFP#1-LO 6642 - 6658 MHz USB RCP
Channel 2 IFP#1-HI 6658 - 6674 MHz USB RCP
Channel 3 IFP#2-LO 6642 - 6658 MHz USB LCP
Channel 4 IFP#2-HI 6658 - 6674 MHz USB LCP
DAS 1 Skyfreq 6658 MHz
Bandwidth 16 MHz
DAS Mode vsop.pro (telescope)
Station Modes Wa Hh
Channel 1 6642 - 6658 MHz USB RCP
Channel 2 6642 - 6658 MHz USB LCP
Channel 3 6658 - 6674 MHz USB RCP
Channel 4 6658 - 6674 MHz USB LCP
Bandwidth 16 MHz
DAS Mode Mark5

*Mode changes:*
179 13:00:00 v255ab.5cm
179 14:05:00 v255ab.5cm-icrf
179 15:00:30 v255ab.5cm
179 19:30:00 v255ab.5cm-icrf
179 21:59:30 v255ab.5cm
180 03:59:00 v255ab.5cm-icrf
180 04:59:30 v255ab.5cm
180 08:00:00 v255ab.5cm-icrf
180 08:54:00 v255ab.5cm
180 13:00:00 v255ab.5cm-icrf

Ftp: ftp://ftp.atnf.csiro.au/pub/people/vlbi/v255/v255ab


Comments:

The purpose of these observations is to obtain an epoch of proper motion/parallax for four groups of maser sources (G269.456/G269.658) ; (G294.990/G298.262) ; (G326.475/G328.81) ; (G345.01/G345.00)

Maser emission at approx. 6666.63 (G269.456), 6667.51 (G269.658), 6668.27 (G294.990), 6668.67 (G298.262), 6669.12 (G326.475), 6669.27 (G328.81), 6668.26 (G345.01), 6668.99 (G345.00).

During the ICRF runs we have sometimes had to exclude certain antennas from observations of some sources in order to get a good spread of azimuths and elevations. Observing comments for each antenna:

Hobart, Ceduna

The level into IF#1 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 v255ab.5cm setup. Please don't change the attenuation into the DAS when the setup changes as that may change the delay.

ATCA:

For the ATCA please phase-up antennas CA01 through CA05 for this experiment.

Observing comments for each antenna:

Observing Logs

Weather

Monica log information - EXPERIMENTAL:

lbaops/lbajun2016/v255ab.txt · Last modified: 2016/06/27 12:25 by sellings