The PAU Survey: Operation and orchestration of multi-band survey data
  The Physics of the Accelerating Universe (PAU) Survey is an international
project for the study of cosmological parameters associated with Dark Energy.
PAU's 18-CCD camera (PAUCam), installed at the prime focus of the William
Herschel Telescope at the Roque de los Muchachos Observatory (La Palma, Canary
Islands), scans part of the northern sky, to collect low resolution spectral
information of millions of galaxies with its unique set of 40 narrow-band
filters in the optical range from 450 nm to 850 nm, and a set of 6 standard
broad band filters. The PAU data management (PAUdm) team is in charge of
treating the data, including data transfer from the observatory to the PAU
Survey data center, hosted at Port d'Informaci\'o Cient\'ifica (PIC). PAUdm is
also in charge of the storage, data reduction and, finally, of making the
results available to the scientific community. We describe the technical
solutions adopted to cover different aspects of the PAU Survey data management,
from the computing infrastructure to support the operations, to the software
tools and web services for the data process orchestration and exploration. In
particular we will focus on the PAU database, developed for the coordination of
the different PAUdm tasks, and to preserve and guarantee the consistency of
data and metadata.
