[daip] [Fwd: Re: VLBA data from BR085 (2003 May)]

[Amy Mioduszewski]

Hi Mayumi,

O.K., I am sorry about the red herring.  You need to add the "INDEX=" statement, 
which defines what stokes and polarization to assign the Tant/Tsys values (see 
the ANTAB explain file).  So after you run FXPOL (or VLBAFIX, see help VLBAFIX) 
so that the right IFs are assigned to the right stokes, add the 
"INDEX='R1:2','L2:2'" to the end of the "TSYS" so it looks like this:
   TSYS Y FT=1.0 TIMEOFF=-32. SRC/SYS INDEX='R1:2','L2:2' /
and run ANTAB.  I loaded your data and when I added the INDEX statement it worked.

Cheers,

Amy

Mayumi Sato wrote:
> Dear Amy,
> 
> Thank you very much for your kind advice.
> I will use VLBAEOP for the EOP correction.
> 
>> As for bc087b, I think you uncommented the lines for single dish, bc087b
>> looks like a 2cm phased array experiment so you should uncomment lines:
>>  GAIN Y ALTAZ POLY=1.0 DPFU=0.093,0.093 / ! 2cm
>>  TSYS Y FT=1.0 TIMEOFF=-32. /
>> If that doesn't work get back to me.
> 
> Yes, the experiment uses a phased array at 2cm and also at 1.3cm.
> Just by judging from the header comments in the bc087bcal.y file, the
> above GAIN/TSYS lines you suggested seems to be for single dish and
> the later section regardless of wavelength seems for the phased array,
> but which should I uncomment?
> And if I should uncomment the first section named Single-antenna
> project, what should I put for the blanked POLY value at 1.3cm?
> 
> As for the BAD TIME error message, I realized it occurred because I
> was separating INDEX entry and TSYS entry by "/" which was written as
> "Do not do" in the cookbook C.8.2.
> I'm sorry I wasn't careful.  Now I don't have the error message.
> But I'm still not sure about which GAIN/TSYS lines to uncomment, and I
> would appreciate your advice.
> 
> Thank you very much for your help.
> 
> Sincerely,
> Mayumi
> 
> Mayumi Sato
>