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: http://www.naic.edu/~cima/cima_faq.html
Дата изменения: Thu Mar 1 19:02:29 2012 Дата индексирования: Mon Oct 1 21:26:41 2012 Кодировка: Поисковые слова: ccd |
Why are there different versions of CIMA?
CIMA is a system in constant development. CIMA is also a complex
system supporting a wide variety of observing modes, some which are
used very rarely. It is thus difficult to test and verify that
modifications made to CIMA has no negative side effects for any of the
many available modes. By offering several versions of CIMA, that does
not become a big problem. Modifications and new modes can be tested
out in a test version, without the risk of breaking the version that
is normally used for observations. Should it turn out that "this"
particular mode that hasn't been used for 6 months no longer works,
the old versions are still available.
Which version of CIMA should I choose?
If You are a normal, happy observer, You should choose the CIMA
version with the highest version number, since that version contains
the latest improvements and bug fixes. If You are a bit more cautious,
You may choose the version called 'normal'. That is
supposed to be a recent and fairly stable version. If You need some
new feature or some recently introduced bug fix, You may have to run a
newer version like 'test'. Modifications and bug fixes in
The CIMA
user's log are usually listed with a version number indicating
when they were introduced. If You find something in the log pages that
You need, then make sure that You select a version of CIMA with the
same or a later version number.
If You discover that CIMA can't deal with Your observations any longer
although it worked fine when You were here doing the very same thing 6
months ago, You may consider trying an older version of CIMA. However,
don't forget to inform the CIMA administrator (email at bottom of
this page) about Your problems, so that he can fix the newer versions.
This is SLOOOOW --- how can I get CIMA to run faster
when I am observing remotely?
Running interactive graphical packages like CIMA can be slow over the
network. The best thing to do is to run CIMA via VNC
which speeds up things considerably by cutting down on the network
traffic. VNC is also more reliable and lets CIMA keep running in case
there are hick-ups in the network connection. It can also aid in
trouble-shooting since an Arecibo staff member can connect to Your VNC
session and see the same screen as You see. See the remote observing
instructions for details on how to use VNC.
I am just trying to open the 'ALFA Beam Positions'
('Quicklook Data', 'ALFA Status', etc.) display from the menu on
'dataview' --- why do I get a CIMA selection window?
Although not directly part of the CIMA observing session, the programs
listed as 'CIMA Applications' in the menu on 'dataview'
are still part of the CIMA package. This means that programs like the
data quick-look display and various ALFA instrument displays all exist
in several versions just like the CIMA observing session itself. The
menu on 'dataview' has thus been set-up to launch all these program
via the CIMA version selection system to allow You to choose which
version of the software You want. If You don't want to see this
selection window any longer, You can just use the 'Select CIMA
Version' option in the menu to select one of the available versions as
Your default version.
Where is my WAPP data written?
Spectral line data is usually written to a server with big disks. For
some time this has been a disk called
/share/pserverf.sda3/wappdata and a lot of people are
accessing their data directly there, which is a BAD idea, since
disks get full and data may be moved or stored somewhere else. The
proper way to access WAPP spectral line data is via the directory
/share/wappdata which contains links to all FITS-files.
There is no CIMA log in my project directory --- what
happened?
If Your project directory is not owned by dtusr it has to
have general write permission in order for CIMA to be able to write
Your log file (or other set-up files) there.
I have lost/destroyed the CIMA log --- is there
another copy somewhere?
Yes, there is a duplicate log of all CIMA sessions written to
/share/cima/Logs/Obs_logs. The logs are kept in daily log
files called Obslog.YYYYMMDD. If You want to use
these log files, You probably want to extract the log that belongs to
Your project by using a command like: grep ' a2142 '
/share/cima/Logs/Obs_logs/Obslog.20060407 > my_log. Note that
a session running across local midnight (AST) is split up in two
separate log-files. Also note that the file format is a bit different.
I like chatting with the CIMA chat box during my
remote observations --- is it OK to use it to discuss some personal matters
with the operator?
Well, that is maybe not the best of ideas. Messages written to the
CIMA chat box are logged in case they could be helpful when
trouble-shooting some problem. If You have matters of more
personal/confidential nature that You want to discuss with the
telescope operator, it is probably better to pick up the phone.