[daip] frustrations trying to get some evla data to look at

Susan Neff Susan.G.Neff at nasa.gov
Sat Apr 9 18:29:36 EDT 2011


Hi Eric,

I'm having trouble getting EVLA data from the archive
into AIPS.  So far I'm mostly having trouble getting the
data from the archive to someplace I can see it.  Frazer
worked with me this morning, and we got the data through
a very circuitous route involving his UNIX machine, but
that won't be available to me if I'm not here and/or he's
not hanging around.  I'm writing this all down for you
because some of it affects the cookbook writeup - and
because I'm hoping you have some ideas how to make
this easier.


I can get the archive to write files to the e2earchive 
disk.
It writes both UVFITS and SDMBDV files for me.  I see how
to get it to write a tarball of the SDMBDV files.  I 
don't see how
to get it to write a tarball of UVFITS files (not sure 
it's even
possible to tar a single file).  I was not able to get 
it to
write directly to a zaurak disk - it said it did not have
the requisite permissions to do so.


I am not able to run the obit scripts on the BDF/ASDM 
files -
zaurak tells me it doesn't know what AIPS_ROOT is 
(although
I am able to run AIPS on zaurak).   Do you know what I 
need
to do to be able to get the obit scripts to work in my 
NRAO
account here at AOC?


I do not know how to get directly to (i.e. login to) 
the e2earchive
area from an AOC machine ... or from any other machine I
guess.  Your Cookbook appendix says that the e2earchive
area is in    /home/acorn2/ftp/pub/e2earchive
However, zaurak says that there is no such directory.
Not sure if this is a zaurak problem, or if the directory
has moved.
I can ssh from zaurak to a machine called acorn, but
acorn does not seem to have a disk area anything like 
the ftp
area described above.  I did find an area called
/e2earchive  on acorn, but it appears to be empty.


When I try to ftp from zaurak to ftp.aoc.nrao.edu, it 
tells me that is
an unknown host.   When I try to sftp, it asks me for 
a password.
Nothing I give it as "anonymous" seems to work.  When 
I sftp as
sgneff, it asks for my password, and then dies 
("Couldn't read packet")


So far, the only thing I've managed to do is to ftp 
from my laptop
to ftp.aoc.nrao.edu, which works.  (I have to login as 
anonymous -
when I come in as sgneff it puts me into some strange 
directory).
Then I was able to get the uvfits test file - it took 
a half hour to
transfer a 1.4GB file,  nrao to (laptop on network at) 
nrao.  The
data file I'll want to look at in May will be much 
larger - probably
a factor of 10ish larger, and will probably have to 
come in through
the goddard network or my phone line at home.

I'm hoping I'm just missing something obvious here ... but
would like to find a way to get the data to move a bit 
more
quickly.

I was then able to copy the uvfits file from my laptop 
to zaurak,
(in another half hour).

I'm hoping there is perhaps something wrong with my 
account
here - this seems very cumbersome if I were, say, to 
be doing
a lot of testing.


Frazer mentioned that you were considering building the
obit scripts into AIPS, so that AIPS could read in the 
SDMBDF
files directly.  Is that anything that's likely to 
happen in the
near future, or is it a longer term thing?


Thanks,
-s-







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