Performance of the extreme-AO instrument VLT/SPHERE and dependence on the atmospheric conditions
arXiv:1710.05417 · doi:10.26698/AO4ELT5.0034
Abstract
SPHERE is the high-contrast exoplanet imager and spectrograph installed at the Unit Telescope 3 of the Very Large Telescope. After more than two years of regular operations, we analyse statistically the performance of the adaptive optics system and its dependence on the atmospheric conditions above the Paranal observatory, as measured by the suite of dedicated instruments which are part of the Astronomical Site Monitor and as estimated by the SPHERE real-time calculator. We also explain how this information can be used to schedule the observations in order to yield the best data quality and to guide the astronomer when processing his/her data.
13 pages, 10 figures, AO4ELT5 Proceeding
References in corpus (6)
- The Gemini Planet Imager: First Light
- VIP: Vortex Image Processing package for high-contrast direct imaging
- Combined MASS-DIMM instrument for atmospheric turbulence studies
- The SHARDDS survey: first resolved image of the HD114082 debris disk in Lower Centaurus Crux with SPHERE
- Extreme adaptive optics imaging with a clear and well-corrected off-axis telescope sub-aperture
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- The Santa Cruz Extreme AO Lab (SEAL): Design and First Light