Obit - Astronomy Software for Algorithm Development
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Linux Binary Distributions
Binary distributions of Obit for Linux systems are available
here.
The distributions have names of the form
obit-distro-x.x.xxx.tar.gz or Obit.AVX-x.x.xxx.tar.gz where x.x.xxx is the
version code in subversion (svn) and are for a 64-bit OS.
Versions using AVX vector (faster) instructions have 'AVX' in the
name. To determine if your machine supports AVX from the command
line type:
> grep " avx " /proc/cpuinfo
if this finds something, the cpu supports these faster instructions.
The distribution tarballs contain the executables, libraries and other
run time files needed to install and use Obit.
Installing a binary
distribution
The following describes how to install and use the binary distribution
for version x.x.xxx.
- Unpack the distribution tarball in the directory in which you wish
to install it; e.g.
> mv Obit.AVX-x.x.xxx.tar.gz /home/mydir/obitinstall
> cd /home/mydir/obitinstall
> tar zxf Obit.AVX-x.x.xxx.tar.gz
- Add the top level distribution to your path:
> setenv PATH "/home/mydir/obitinstall/Obit.AVX-x.x.xxx/bin:$PATH"
if you use tcsh or, for bash
> PATH="/home/mydir/obitinstall/Obit.AVX-x.x.xxx/bin:$PATH"; export PATH
You may wish to add these to your .cshrc or .profile login files.
- ObitTalk is the python based user interface, documentation is in
doc/ObitTalk.pdf.
There is also an ObitTalk3 for python 3.
- Additional customization is possible using the python file
dot.obitrc.py renamed to .obitrc.py and placed in your home directory
($HOME) or in the working directory from which you run ObitTalk.
This can be used to define the location of AIPS and AIPS data
directories as well as FITS data directories.
Release notes
- 1.1.189
Initial binary release.
- 1.1.190
Peeling fixes for 3D imaging.
- 1.1.195
Merged CC tables used for determining image peak for self cal, auto
centering and peeling.
Support beam size in UV data.
Imaging fixes.
- 1.1.201
Task BDFIn to read EVLA data in ALMA format.
Tasks can now write directly to log file.
- 1.1.218
Enhanced selection, bug fixes in BDFIn. Task ASDMList to summarize
contents of an ALMA Science Data Model.
- 1.1.223
BDFIn: Add gain calibration to CL table.
- 1.1.273
Various flagging improvements, edit low amplitudes, up to 250,000
simultaneous flags.
- 1.1.300
BDFIn: Read either SysPower xml or bin version.
- 1.1.302
Add multiresolution CLEAN to Imager, Squint, MFImage.
- 1.1.610
Now supports python3 as well as python 2.7.
The (USA) National Radio Astronomy Observatory
(NRAO)
is operated by Associated Universities, Inc. and is a Facility of
the (USA) National Science Foundation.
Comments? Questions? Problems?