p2 : a web-based tool for the preparation of your Phase 2 material

ESO has released a web application p2 in support of the preparation of Phase 2 material of Paranal's service and visitor mode (SM and VM, respectively) runs, including designated VM. Starting from P102 PI's (and their delegates) of approved SM runs with VLT/I instruments are asked to prepare their Phase 2 material with p2

In the transition period between P2PP3 and the new web based p2 tool, some users may wish to use OBs from their previous runs (not checked-in during P100 or before) for their upcoming observations, without having to recreate them from scratch in p2.   

Please be aware of the following:

  • Service Mode runs: All OBs that were submitted (check-in) via P2PP3 in P100 or before are visible in p2 under the previous run ID. Those OBs can be re-used by copying & pasting from the pre-P101 run to the current run within p2. Please notice that the creation of OBs with p2 inside P100 observing runs and earlier is not supported in p2. Runs younger then P90 are not visible in p2.
  • Visitor Mode runs: OBs belonging to visitor mode runs that were executed at least once during P100 or before are already visible in p2 under the previous run ID. Those OBs can be re-used and simply copy & pasted from the pre-P100 run to the current run within p2.

Users who wants to import a large amounts (> 100) of OBX files or scheduling containers into the database and as such made available in p2 should use the obximport Python script. Please find here further details.


The user interface implements most of the features already available on P2PP3. Please familiarize with the new features and functionalities available. Please check the help pages for few specific instructions on preparation of Phase 2 material with p2.

The new Phase 2 web interface is available at the following URL:


Please log-in using your ESO User Portal credentials.

General comments and suggestions related to Phase 2 material preparation and p2 can be sent via usd-help@eso.org e-mail to ESO User Support Department. 

p2 is implemented using Google’s angular framework [https://angular.io]. We recommend to run p2 with Google Chrome >= version 52, Firefox >= version 48, Safari >= version 9, MacOS >= version 10.9 (Mavericks), Fedora Linux >= version 24.