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lbaops:lbafeb2009:v255e [2009/02/23 12:05]
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lbaops:lbafeb2009:v255e [2015/12/18 16:38] (current)
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 ^Channel 3          | '' IFP#2-LO 6642 - 6658 MHz USB LCP  '' | ^Channel 3          | '' IFP#2-LO 6642 - 6658 MHz USB LCP  '' |
 ^Channel 4          | '' IFP#2-HI 6658 - 6674 MHz USB LCP  '' | ^Channel 4          | '' IFP#2-HI 6658 - 6674 MHz USB LCP  '' |
-^Skyfreq            | 6316.00 MHz |+^Skyfreq  IFP#         | 6316.00 MHz | 
 +^Skyfreq  IFP#2         | 6658.00 MHz |
 ^Bandwidth          | 16 MHz         | ^Bandwidth          | 16 MHz         |
 ^DAS Mode           | vsop.pro ([[http://www.atnf.csiro.au/vlbi/dasmodes/16-2IF-1p-d.html|telescope]]) | ^DAS Mode           | vsop.pro ([[http://www.atnf.csiro.au/vlbi/dasmodes/16-2IF-1p-d.html|telescope]]) |
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 ==== Specifics: ==== ==== Specifics: ====
-The experiment has 4 distinct sections, **minor setup changes are required between 15:00:00 and 15:55:00 then at 16:52:50 and 01:46:40 UT** +The experiment has 4 distinct sections, **minor setup changes are required between 15:30:00 and 15:55:00 then at 16:52:50 and 01:46:40 UT** 
-  -  15:00:00 - 15:50:00 UT : Observing 3c273 with the v255e.5cm setup (dual polarization 4 x 16 MHz bandpass setup).+  -  15:30:00 - 15:50:00 UT : Observing 3c273 with the v255e.5cm setup (dual polarization 4 x 16 MHz bandpass setup).
   -  15:50:00 - 16:52:50 UT : Use the single polarization (LCP), 4 x 16 MHz bandpass setup. We are looking at ICRF sources over as wide a range of azimuths and elevations as possible for atmospheric delay calibration for the astrometry.   -  15:50:00 - 16:52:50 UT : Use the single polarization (LCP), 4 x 16 MHz bandpass setup. We are looking at ICRF sources over as wide a range of azimuths and elevations as possible for atmospheric delay calibration for the astrometry.
   -  16:52:50 - 01:46:40 UT : Use the dual polarization 2 x 16 MHz bandpass setup.  This portion of the experiment is mainly switching every few minutes between the two maser sources G9.62+0.20 and G8.68-0.37 and three phase calibrators.  There is an ICRF run between 2028 and 2134 UT, this one is done with the maser setup (to reduce the number of changes overall).   -  16:52:50 - 01:46:40 UT : Use the dual polarization 2 x 16 MHz bandpass setup.  This portion of the experiment is mainly switching every few minutes between the two maser sources G9.62+0.20 and G8.68-0.37 and three phase calibrators.  There is an ICRF run between 2028 and 2134 UT, this one is done with the maser setup (to reduce the number of changes overall).
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 The 4 x 16 MHz bandpass setup will require feeding two separate LOs into IFP#1 and #2 on the DAS/frequency translator and splitting the LCP signal so that is feed into both sides.  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 4 x 16 MHz bandpass setup will require feeding two separate LOs into IFP#1 and #2 on the DAS/frequency translator and splitting the LCP signal so that is feed into both sides.  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.
  
-==== Parkes, ATCA, Mopra :  ==== +Summary of changes
-**NOTE: Below here is just copied from v255c at the moment**+
  
-Cable up with the Huygens cable for the entire experiment. Observe with dual DAS setup using 2 DASes for the 4 x 16 MHz setups and 1 for the dual polarization 2 x 16 MHz setup. Record using the following cdisko channel selections at the appropriate time ranges. Stop the recorder in between! At Parkes you will have to change the frequency manually running for example (in a pavo xterm) ''> lorun @2008_METH-split.cmd '' 
  
-| width=80% +^ UT ^ IFP#1/IFP#
-^ UT         | Channel selection Parkes Frequency setup +15:30-15:40 Rcp/Lcp 6658/6658 MHz 
-22:22-23:37:10 3,4,7,8 | 2008Nov_METHc.cmd +15:40-15:50 Lcp/Lcp 6658/6658 MHz | 
-23:37:10-08:02:00 1-4     2008Nov_METHb.cmd +| 15:50-16:53 Lcp/Lcp 6316/6658 MHz 
-08:02:00-09:00 3,4,7,2008Nov_METHc.cmd |+16:53-01:47 Rcp/Lcp 6658/6658 MHz | 
 +| 01:47-02:30 Lcp/Lcp 6316/6658 MHz |
  
-ATCA will have to cacal at 6.3/6.7 GHz and 6.7/6.7 GHz before the experiment. Note "catie" should be setup for Rcp/Lcp (Lcp is selected in cdisko)+==== Parkes, ATCA, Mopra :  ====
  
 +ATCA and Mopra will change frequencies automatically. Parkes need to run lo_run at the mode
 +changes, as noted in the table below. cdisko channel selection need to be changed also.
  
-=====  DAS calibration =====+Cable up with the Huygens cable for the entire experiment. Observe with dual DAS setup using 2 DASes for the vsop profile. Record using the following cdisko channel selections at the appropriate time ranges. Stop the recorder in between! At Parkes you will have to change the frequency manually running for example (in a pavo xterm) ''> lorun @2008_METH-split.cmd ''
  
-During the first 20 minutes we will need to calibrate the delay between the two ATNF DAS, and the delay between Hobart/Ceduna in dual pol and single pol mode. The following modes will need to be used to calibrate these. 
  
-===  ATNF DAS offsets ===+^ UT  ^ Channel selection ^ Parkes Frequency setup | 
 +| 15:30-15:40 | 1-8 | 2009Feb_METHc.cmd | 
 +| 15:40-15:50 | 1-4 | 2009Feb_METHc.cmd | 
 +| 15:50-16:53 | 3,4,7,8 | 2009Feb_METHb.cmd | 
 +| 16:53-01:47 | 1-4 | 2009Feb_METHc.cmd | 
 +| 01:47-02:30 | 3,4,7,8 | 2009Feb_METHb.cmd |
  
-Everyone records with a dual polarisation/6.7 GHz setup. ATNF records at 512 Mbps, ie Huygens/Channel 1-8 in cdisko with DAS1 and DAS2  
  
-===  Hobart/Ceduna Single pol calibration === 
  
-Hobart and Ceduna cable up with LCP into both IFP, but remain at 6.7 GHz. Pks/ATCA/Mop record chans 1-4. +ATCA will have to cacal at 6.3/6.7 GHz and 6.7/6.7 GHz before the experimentNote "catie" should be setup for Rcp/Lcp (Lcp is selected in cdisko)
- +
-===  Split freq fringe test === +
- +
-Hobart and Ceduna retune IFP#1 to 6316 MHzParkes/Mopra/ATCA run with DAS#1 centered at 6316 and DAS#2 at 6658 MHz and record Chan 3,4,7,in cdisko. Parkes will have to ''lorun''. ATCA and Mopra have the frequency change built into the schedule.+
  
  
  
-^ Time (UT) ^ Ho/Cd ^ At/Pa/Mp ^ ATNF Channels ^ Parkes lorun | 
-| 22:00-22:08 | Dual Pol | Dual Pol | 1-8 | 2008Nov_METH.cmd | 
-| 22:08-22:17 | Lcp only 6.7/6.7 GHz | Dual Pol | 1-4 | 2008Nov_METH.cmd | 
-| 22:17-22:22 | Lcp only 6.3/6.7 GHz | Lcp only 6.3/6.7 GHz | 1-4 | 2008Nov_METH-split.cmd | 
  
  
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 ===== Observing Logs ===== ===== Observing Logs =====
 [[http://www.atnf.csiro.au/cgi-bin/vlbi/parkes-onsource.pl?session=Feb2009&start=56/15:30:00&end=57/02:30:00| Parkes onsource flagging]]\\ [[http://www.atnf.csiro.au/cgi-bin/vlbi/parkes-onsource.pl?session=Feb2009&start=56/15:30:00&end=57/02:30:00| Parkes onsource flagging]]\\
 +[[http://www.atnf.csiro.au/cgi-bin/vlbi/parkes_tsys.pl?year=2009&start=56/15:300:00&end=57/02:30:00 | Parkes Tsys ]]\\
 [[http://www.atnf.csiro.au/cgi-bin/vlbi/atca-onsource.pl?start=56/15:30:00&end=57/02:30:00&year=2009| ATCA onsource flagging]]\\ [[http://www.atnf.csiro.au/cgi-bin/vlbi/atca-onsource.pl?start=56/15:30:00&end=57/02:30:00&year=2009| ATCA onsource flagging]]\\
 [[http://www.atnf.csiro.au/cgi-bin/vlbi/mopra_onsource.pl?exper=v255e| Mopra onsource flagging]]\\ [[http://www.atnf.csiro.au/cgi-bin/vlbi/mopra_onsource.pl?exper=v255e| Mopra onsource flagging]]\\
lbaops/lbafeb2009/v255e.1235351103.txt.gz · Last modified: 2015/12/18 16:38 (external edit)