October 5-9, 2014


P2.6 Map-making for large-format detector arrays on CCAT

Gaelen Marsden (University of British Columbia)

Douglas Scott, University of British Columbia Tim Jenness, Cornell University

CCAT will be a large sub-millimeter telescope to be built near the ALMA site in northern Chile. A large-format KID camera, with up to 48,000 detectors at a single waveband sampled at ~1kHz, will have a data rate ~50 times larger than SCUBA-2, the largest existing submillimeter camera. Creating a map from this volume of data will be a challenge, both in terms of memory and processing time required. We investigate how to extend the iterative map-maker used for SCUBA-2 observations to a distributed-node parallel system, and estimate how well we expect the processing time to scale with the number of nodes in the system.

Mode of presentation: poster

Applicable ADASS XXIV theme category: Data Analysis / Pipelines