ESO Period 110 Proposal Submission Statistics

Published: 28 Mar 2022

The deadline for proposal submission for Period 110 (1 October 2022 - 31 March 2023) was 25 March, 2022. 871 valid proposals were submitted, including 33 Large Programmes. On the VLT the most requested ESO instrument was MUSE with a request of 449 nights, followed by X-Shooter with 258 nights. HARPS on the ESO 3.6-metre telescope was the most demanded instrument at La Silla (and fourth most demanded instrument overall), with 184 nights.

In Paranal, the telescope with the highest oversubscription is Melipal (UT3), with a total request of 567 nights, followed by Yepun (UT4; 524 nights). Following the steady trend observed during the last semesters, the request for Service Mode is getting close 90%, for the first time in ESO history.

The newly introduced distributed peer review (DPR), concerning proposals requesting the total telescope of 16h and less, will evaluate 50% of all submitted proposals covering 15.6% of all the requested time.

The percentages of submitted proposals across science categories were:

  • Cosmology and Intergalactic Medium 12.2%
  • Galaxies 25.6%
  • ISM, Star Formation and Planetary Systems 34.8%
  • Stellar Evolution 27.4%.

Proposals will be reviewed by the Observing Programmes Committee and the DPR scheme. Proposers can expect to be informed of the outcome of the review process around mid-July.