Gemini Principles

Up to 30% of annual spend across the built environment is lost in inefficiencies related to poor quality data1. This is seen in lost productivity due to underperforming economic and social infrastructure. Effective information management will enable better decisions, leading to financial savings, improved performance and service, and better outcomes for business and society per whole-life pound. To make this possible an information management framework is necessary. This paper seeks to build consensus on foundational definitions and guiding values – the Gemini Principles – and to begin enabling alignment on the approach to information management across the built environment.Funded by the Centre for Digital Built Britai

A Gigapixel commercially-manufactured cryogenic camera for the J-PAS 2.5m survey telescope

ABSTRACT The J-PAS (Javalambre Physics-of-the-Accelerating-Universe Astrophysical Survey) project will perform a five-year survey of the northern sky from a new 2.5m telescope in Teruel, Spain. We describe the design concept of a complete cryogenic camera with a mosaic focal plane and 1.2 gigapixel science array which is to be commercially supplied. The focal plane is contained within a novel liquid-nitrogen-cooled vacuum cryostat, with proximity drive electronics designed to achieve a 4 e-readout noise from the 224-channel CCD system