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Proceedings Paper

Exploring remote operation for ALMA Observatory
Author(s): Tzu-Chiang Shen; Ruben Soto; Nicolás Ovando; Gaston Velez; Soledad Fuica; Anton Schemrl; Andres Robles; Jorge Ibsen; Giorgio Filippi; Emmanuel Pietriga
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Paper Abstract

The Atacama Large Millimeter /submillimeter Array (ALMA) will be a unique research instrument composed of at least 66 reconfigurable high-precision antennas, located at the Chajnantor plain in the Chilean Andes at an elevation of 5000 m. The observatory has another office located in Santiago of Chile, 1600 km from the Chajnantor plain. In the Atacama desert, the wonderful observing conditions imply precarious living conditions and extremely high operation costs: i.e: flight tickets, hospitality, infrastructure, water, electricity, etc. It is clear that a purely remote operational model is impossible, but we believe that a mixture of remote and local operation scheme would be beneficial to the observatory, not only in reducing the cost but also in increasing the observatory overall efficiency. This paper describes the challenges and experience gained in such experimental proof of the concept. The experiment was performed over the existing 100 Mbps bandwidth, which connects both sites through a third party telecommunication infrastructure. During the experiment, all of the existent capacities of the observing software were validated successfully, although room for improvement was clearly detected. Network virtualization, MPLS configuration, L2TPv3 tunneling, NFS adjustment, operational workstations design are part of the experiment.

Paper Details

Date Published: 6 August 2014
PDF: 6 pages
Proc. SPIE 9149, Observatory Operations: Strategies, Processes, and Systems V, 91492D (6 August 2014); doi: 10.1117/12.2054860
Show Author Affiliations
Tzu-Chiang Shen, Atacama Large Millimeter/submillimeter Array (Chile)
Ruben Soto, Atacama Large Millimeter/submillimeter Array (Chile)
Nicolás Ovando, Atacama Large Millimeter/submillimeter Array (Chile)
Gaston Velez, Atacama Large Millimeter/submillimeter Array (Chile)
Soledad Fuica, Atacama Large Millimeter/submillimeter Array (Chile)
Anton Schemrl, Atacama Large Millimeter/submillimeter Array (Chile)
Andres Robles, Atacama Large Millimeter/submillimeter Array (Chile)
Jorge Ibsen, European Southern Observatory (Chile)
Giorgio Filippi, European Southern Observatory (Chile)
Emmanuel Pietriga, INRIA Chile (Chile)

Published in SPIE Proceedings Vol. 9149:
Observatory Operations: Strategies, Processes, and Systems V
Alison B. Peck; Chris R. Benn; Robert L. Seaman, Editor(s)

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