XMM-Newton Twentieth Announcement of Opportunity (AO-20)
Anticipated Timeline


The Twentieth Announcement of Opportunity (AO-20) is not yet open

The planned key milestones for the twentieth XMM-Newton "Announcement of Opportunity" have been established. Within this AO-20 a new call to submit proposals for observations to be performed with the XMM-Newton observatory will be issued.

To be prepared for this, please find below the anticipated timeline:

The planned key milestones for AO-20 are:
  Announcement of Opportunity 18 August 2020
  Due date for Proposals 9 October 2020 (12:00 UT)
  Final OTAC approved programme mid December 2020
For approved proposals only:
  Start of Phase II proposal submission 11 January 2021
  Closure of Phase II proposal submission 5 February 2021
  Start of AO-20 observations May 2021

The official "Announcement of Opportunity" will be made public in the XMM-Newton News and on the XMM-Newton Science Operations Centre Home Page.