ESPRESSO Commissioning Data Release

Published: 07 Sep 2020

The commissioning runs of ESPRESSO both in 1UT mode and in 4UT mode took place at the VLT between November 2017 and July 2019, addressing all the modes of the instrument and the outcome of the three scheduled technical interventions. The commissioning data have been released to illustrate the capabilities of the instrument. They include observations in the 4UT mode, exhibiting the power of the spectrograph with an equivalent collecting area of approximately 16m in diameter. The details of the observations are available at the ESPRESSO Commissioning webpage, which also provides access to the data.