Phase 2 Observing Preparation

Phase 2 is the step when users of ESO's telescope facilities prepare for their observations. The observation preparation differs slightly for users who have been granted Service Mode observations versus observers who will travel to the telescope for their Visitor Mode observations or who have time allocated in designated Visitor Mode.

The backbone of all observations are the Observation Blocks (OBs) which one prepares with the Phase 2 web-based application p2 for Paranal and using p2ls for observations on La Silla. PIs of the approved observing runs can delegate the Phase 2 tasks by declaring their Phase 2 delegate(s) in the User Portal. 

Help and instructions for Phase 2 preparations is offered by different teams, depending on the nature of the observations, via web pages and email contact. Please choose one of the following links:

Instrument selector