Technical details of OmegaTranS
OmegaTranS will make use of the Omegacam CCD camera on the
newly built VLT survey Telescope. Read more about the VST and
The VLT survey telescope (VST), still under construction in Napoli, is a
2.6m modified Ritchey-Cretien telescope which will be installed on Paranal
in 2007. It is specifically designed for wide-field imaging and has been
optimised for excellent image quality in natural seeing.
The CCD camera
OmegaCAM is a 1 square degree wide field, optical, 16k X 16k
camera for the VLT Survey Telescope (VST). It consists of 32 low-noise
array, resulting in 0.26 arcsecond pixels. It has been build by a
consortium of German, Dutch and Italian institutes.
At first instance, 3 weeks of bright GTO time (plus additional time
that will be persued through GO rounds) will be used to monitor
4 densely populated star fields towards the galactic disk at
low declination. Cycle time will be approximately 8.5 minutes, with
20 sec. exposures - targeting about ~70,000 F,G, and K dwarf stars
at R=13.5-17.5 for at least 1500 epochs during the first observing
The data reduction will be performed in the (hardware and software) framework
of AstroWise, using difference imaging. The expected data flow is 4.5 Tbyte
per year (1.5 Tb per partner), well within the capacity of AstroWise.