Visit ASIAA Homepage Deadline: February 18, 2011
ALMA Users Workshop
February 26-27, 2011
ASIAA R1203, AS/NTU Astronomy-Mathematics Building

Workshop Preparation

Things to bring

  1. A laptop with wireless capabilities.
  2. ALMA softwares (see links below) installed on your laptop for hands-on exercises.


People participating in the workshop can also visit the next list of links that point to documents with relevant information about ALMA observatory.

More useful information about radio astronomy and interferometry can be obtained in the next links pointing to recent schools of radio astronomy:

Participants are required to install both the offline data reduction package (CASA) and the ALMA Observing Tool (OT), in their own laptops for the hands-on exercises during the workshop.

The Common Astronomy Software Applications (CASA) package is a set of C++ tools bundled together under an iPython interface as a set of data reduction tasks. CASA is being developed by a collaboration led by NRAO with the primary goal of supporting the data post-processing needs of the next generation of radio astronomical telescopes such as ALMA and EVLA. The CASA tasks are oriented towards end-user data processing and analysis, while the toolkit is geared towards the support of pipeline processing, algorithm development, and the construction of tasks.

The ALMA Observing Tool (OT) is a Java-based application integrating a set of user interfaces needed to prepare a full Observing Project for the ALMA Observatory. There are two steps, phase I and phase II, that every user has to do in order to observe with ALMA. In the former the user will write a scientific justification for the project with some basic description of the planned observations. In the latter users that were granted with observing time by the Time Allocation Committee (TAC), will provide full description of the methodology to be followed (pointings, targets, calibration, scheduling blocks, etc) to do the observations.

The latest available version can be downloaded from the next link, while both the User Manual and the Reference Manual provide useful information about OT.

Latest OT release
User Manual
Reference Manual

The installation itself (either webstart or tarball) is straightforward. Users need Java 6 (also known as jdk1.6) installed as the default in order to be able to run the ALMA OT.

Java 6 is often synonymously called Java 1.6 or J2SE 1.6 which refers to its internal version number. Check your java version on the command-line. It should read something like this:

> java -version
java version "1.6.0_02"
Java(TM) SE Runtime Environment (build 1.6.0_02-b05)
Java HotSpot(TM) Client VM (build 1.6.0_02-b05, mixed mode, sharing)

An output like this (with the 1.6.x) means Java 6 is installed, and this means Java Web Start technology is installed as well. Also, Java 6 should be the top priority option for the mac osx system, this can be set in the Java Preferences. For Windows and Linux, you can download Java from

Note: Users have to make sure both CASA and OT are properly installed and running in their laptops. Any question about installation issues can be sent to :

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