User Tools

Site Tools


lbaops:lbamar2012:v255q

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

lbaops:lbamar2012:v255q [2015/12/18 16:38] (current)
Line 1: Line 1:
 +===== v255q  =====
 +
 +^Description ​       | Proper motion and Parallax of Methanol Masers: A search for infalling ga |
 +^Antennas ​          | At-Cd-Ho-Mp-Pa |
 +^Start ​             | 67 04:​00:​00 ​  |
 +^Stop               | 67 22:​00:​00 ​  |
 +^PI                 | S.P. Ellingsen |
 +
 +
 +Setup v255q.5cm-icrf:​
 +
 +^Station Modes                 | At Cd Ho Mp Pa |
 +^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 ([[http://​www.evlbi.atnf.csiro.au/​daspro/​daspro.php???​=6650|telescope]]) |
 +
 +Setup v255q.5cm:
 +
 +^Station Modes                 | At Cd Ho Mp Pa |
 +^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 ([[http://​www.evlbi.atnf.csiro.au/​daspro/​daspro.php?​VSOP=6650|telescope]]) |
 +
 +**Mode changes:​**\\
 +67 04:00:00 v255q.5cm\\
 +67 04:10:00 v255q.5cm-icrf\\
 +67 05:00:00 v255q.5cm\\
 +67 08:30:00 v255q.5cm-icrf\\
 +67 09:15:00 v255q.5cm\\
 +67 12:30:00 v255q.5cm-icrf\\
 +67 13:15:00 v255q.5cm\\
 +67 16:45:00 v255q.5cm-icrf\\
 +67 17:30:00 v255q.5cm\\
 +67 21:15:00 v255q.5cm-icrf\\
 +
 +Ftp: [[ftp://​ftp.atnf.csiro.au/​pub/​people/​vlbi/​v255/​v255q]]
 +----
 +
 +===== Comments: =====
 +The basic method and frequencies for this experiment are the same as for the earlier v255 experiments (Jul 11, Nov 11 and earlier). ​ The frequency setup for this session is identical to v255p in November 2011.  As for November the setup for the ICRF observations is to be 2 IFs with different polarizations. ​ The times for the setup (mode) changes are given above.
 +
 +The purpose of these observations is to obtain the fourth epoch for proper motion/​parallax for Mon R2 and the first epoch for proper motion/​parallax observations of the methanol maser sources G339.884-1.259,​ G339.681-1.208 and G339.682-1/​207. ​  
 +
 +The Mon R2 observations run from 4-13 UT and should show a modest peak at a sky frequency of 6667.28 MHz.  The G339.88-1.26 run from 13-22 UT and should show a strong peak at a sky frequency of around 6670.1 MHz during these observations.
 +
 +During the ICRF runs we have sometimes had to exclude certain antennas (particularly Parkes) from observations of some sources in order to get a good spread of azimuths and elevations.
 +
 +===== Observing comments for each antenna: =====
 +
 +==== Hobart, Ceduna :  ====
 +
 +The 4 x 16 MHz bandpass setup requires feeding two separate LOs into IFP#1 and #2 on the DAS/​frequency translator. ​ For Hobart the LOs should be set to 468 MHz (IFP#1) and 810 MHz (IFP#2) for the 4 x 16 MHz setup and 810 MHz for the 2 x 16 MHz setup. ​ For Ceduna, if you set the agilent to 11.1 GHz rather than 11.4 GHz, then you can use the same LOs as at Hobart.
 +
 +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 v255p.5cm setup - it doesn'​t matter if the system temperature measurement doesn'​t work for the first 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.  ​
 +
 +==== Parkes, ATCA, Mopra :  ====
 +
 +For the ATCA please phase-up antennas CA01 through CA05 for this experiment. ​
 +
 +Setup as for a 2p-4IF experiment (dual DAS with huygens cable for entire experiment) with DAS1 tuned to the lower frequency and DAS2 to the upper frequency. Use the new features in cdisko version 4 to automate the changes of channel selection as per the following table.
 +
 +| v255q.5cm | Channels 5-8 |
 +| v255q.5cm-icrf | Channels 1,2,7,8 |
 +
 +==== Parkes :  ====
 +
 +0500-0523 UT & 1315-1443 UT : Target sources not up at Parkes, Parkes not observing.
 +0523-0733 UT & 1101-1230 UT : Only one of the two target sources (Mon R2) above the horizon at Parkes (G188.95 has set), Parkes will miss about 50% of scans during these times. \\
 +
 +===== Observing comments for each antenna: =====
 +
 +| [[.:​v255qatlog | At]] | [[.:​v255qcdlog | Cd]] | [[.:​v255qholog | Ho]] | [[.:​v255qmplog | Mp]] | [[.:​v255qpalog | Pa]] |
 +----
 +===== Observing Logs =====
 +[[http://​www.atnf.csiro.au/​cgi-bin/​vlbi/​parkes-onsourcenew.pl?​year=2012&​start=67/​04:​00:​00&​end=67/​22:​00:​00| Parkes onsource flagging]]\\
 +[[http://​www.atnf.csiro.au/​cgi-bin/​vlbi/​atca-onsource.pl?​start=67/​04:​00:​00&​end=67/​22:​00:​00&​year=2012| ATCA onsource flagging]]\\
 +[[http://​www.atnf.csiro.au/​cgi-bin/​vlbi/​mopra_onsource.pl?​exper=v255q| Mopra onsource flagging]]\\
 +[[http://​www.atnf.csiro.au/​cgi-bin/​vlbi/​mopra_tsys.pl?​exper=v255q&​plot=0| Mopra Tsys]]
 +([[http://​www.atnf.csiro.au/​cgi-bin/​vlbi/​mopra_tsys.pl?​exper=v255q&​plot=1|plot]])\\
 +[[http://​www.atnf.csiro.au/​cgi-bin/​vlbi/​parkes_tsys.pl?​year=2012&​start=67/​04:​00:​00&​end=67/​22:​00:​00| Parkes Tsys]]\\
 +
 +===== Weather =====
 +[[http://​www.atnf.csiro.au/​cgi-bin/​vlbi/​monica_weather.pl?​start=67/​04:​00:​00&​end=67/​22:​00:​00&​year=2012&​site=ATCA| ATCA Weather]]\\
 +[[http://​www.atnf.csiro.au/​cgi-bin/​vlbi/​monica_weather.pl?​start=67/​04:​00:​00&​end=67/​22:​00:​00&​year=2012&​site=Mopra| Mopra Weather]]\\
 +[[http://​www.atnf.csiro.au/​cgi-bin/​vlbi/​monica_weather.pl?​start=67/​04:​00:​00&​end=67/​22:​00:​00&​year=2012&​site=Parkes| Parkes Weather]]\\
 +
 +===== Monica log information - EXPERIMENTAL:​ =====
 +[[http://​www.atnf.csiro.au/​cgi-bin/​vlbi/​monica_tsys.pl?​year=2012&​start=67/​04:​00:​00&​end=67/​22:​00:​00&​index='​R1:​2','​L1:​2','​X','​X'&​tel=Mp | Mopra Tsys]]\\
 +[[http://​www.atnf.csiro.au/​cgi-bin/​vlbi/​monica_tsys.pl?​year=2012&​start=67/​04:​00:​00&​end=67/​22:​00:​00&​index='​R1:​2','​L1:​2','​X','​X'&​tel=Pa | Parkes Tsys]]\\
 +[[http://​www.atnf.csiro.au/​cgi-bin/​vlbi/​monica_tsys.pl?​year=2012&​start=67/​04:​00:​00&​end=67/​22:​00:​00&​index='​R1:​2','​L1:​2','​X','​X'&​tel=At | ATCA Tsys]]
 +
  
lbaops/lbamar2012/v255q.txt · Last modified: 2015/12/18 16:38 (external edit)