APECS – the Atacama pathfinder experiment control system

APECS – the Atacama pathfinder experiment control system

APECS is the distributed control system of the new Atacama Pathfinder EXperiment (APEX) telescope located on the Llano de Chajnantor at an altitude of 5107 m in the Atacama desert in northern Chile. APECS is based on Atacama Large Millimeter Array (ALMA) software and employs a modern, object-oriented design using the Common Object Request Broker Architecture (CORBA) as the middleware. New gener...

The Atacama Compact Array System

The LTP experiment on the LISA Pathfinder mission

We report on the development of the LISA Technology Package (LTP) experiment that will fly onboard the LISA Pathfinder mission of the European Space Agency in 2008. We first summarize the science rationale of the experiment aimed at showing the operational feasibility of the so-called transverse–traceless coordinate frame within the accuracy needed for LISA. 0264-9381/05/100125+14$30.00 © 2005 ...

The Mars Pathfinder atmospheric structure investigation/meteorology (ASI/MET) experiment.

The Mars Pathfinder atmospheric structure investigation/meteorology (ASI/MET) experiment measured the vertical density, pressure, and temperature structure of the martian atmosphere from the surface to 160 km, and monitored surface meteorology and climate for 83 sols (1 sol = 1 martian day = 24.7 hours). The atmospheric structure and the weather record are similar to those observed by the Vikin...

DECALS: distributed experiment control and logging system

In developing distributed applications and services there is a need to be able to set up and run tests on a set of processes. The experiment might be to obtain performance data, to test the processes' behaviour, or to evaluate an application management strategy. Common requirements are to load and run special versions of at least some of the software, often on multiple nodes of a network, to in...