The GRAVITY instrument software/high-level software - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2014

The GRAVITY instrument software/high-level software

Jürgen Ott
  • Fonction : Auteur
Antonio Amorim
  • Fonction : Auteur

Résumé

GRAVITY is the four-beam, near-infrared, AO-assisted, fringe tracking, astrometric and imaging instrument for the Very Large Telescope Interferometer (VLTI). It is requiring the development of one of the most complex instrument software systems ever built for an ESO instrument. Apart from its many interfaces and interdependencies, one of the most challenging aspects is the overall performance and stability of this complex system. The three infrared detectors and the fast reflective memory network (RMN) recorder contribute a total data rate of up to 20 MiB/s accumulating to a maximum of 250 GiB of data per night. The detectors, the two instrument Local Control Units (LCUs) as well as the five LCUs running applications under TAC (Tools for Advanced Control) architecture, are interconnected with fast Ethernet, RMN fibers and dedicated fiber connections as well as signals for the time synchronization. Here we give a simplified overview of all subsystems of GRAVITY and their interfaces and discuss two examples of high-level applications during observations: the acquisition procedure and the gathering and merging of data to the final FITS file.

Dates et versions

hal-03734613 , version 1 (21-07-2022)

Identifiants

Citer

L. Burtscher, Ekkehard Wieprecht, Thomas Ott, Yitping Kok, Senol Yazici, et al.. The GRAVITY instrument software/high-level software. Optical and Infrared Interferometry IV, Jun 2014, Montréal, Quebec, Canada. ⟨10.1117/12.2055928⟩. ⟨hal-03734613⟩
14 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More