ESO User Portal Frequently Asked Questions

Delegation-Related Questions

What is delegation?
Delegation is a process by which the Principle Investigator of an observing run or the owner of a Phase 3 programme grants different access rights to another User Portal registrant. The rights granted in this manner depend on the type of delegation granted:
  • Phase 2 delegates are granted the ability to use p2 (or vOT on Paranal; note that Phase 2 delegation is only available for Paranal use) to make observing preparations for the corresponding run as if they were the Principle Investigator.
  • Data Access delegates can download from the Science Archive Facility proprietary data from the run.
  • Phase 3 delegates can create collections within the corresponding programme and create releases within the collections of that programme. In addition, they may perform data upload into those collections/releases. The ability to certify that the release is complete is reserved for the Phase 3 programme owner, and cannot be delegated.
What is the difference between Phase 2 access delegation and data access delegation?
  • Through Phase 2 delegation the PI of an observing run allows one or more users to make observing preparations using their own User Portal account credentials rather than those of the PI herself/himself, using p2 and vOT (for Paranal Service Mode and Visitor Mode, respectively).
  • By means of data delegation the PI grants access to the proprietary data from a run to one or more users.
It is important to note that there is no implied connection between these sorts of delegation! That is, a Phase 2 delegate does not have any special access to data from a run, and data delegates cannot use their own User Portal account to make observation preparations for a run. It is thus very important when making a delegation to be aware of which type of delegation is being granted.
I'm not able to set up a Phase 2 delegation for my La Silla run. Why is this so?
Phase 2 delegation is tied directly to the web application p2 (and the vOT tool in Paranal). Since p2 is not in use for La Silla it is unfortunately not possible for a PI to delegate Phase 2 access for such runs. This leaves two options for non-Principle Investigators observing on La Silla: (1) obtaining/using the User Portal login credentials of the Principle Investigator, or (2) using the P2PP tutorial account. The latter option is strongly discouraged since doing so will result in the data being tagged in the archive with the wrong Programme ID and thus made immediately public!
I have made a delegation, but my colleague does not see the run in P2PP. What is wrong?
If you and your colleague are dealing with Phase 2 preparation in the context of the P2PP tool the run in question must be a La Silla run. Since Phase 2 delegation is unsupported for La Silla it must be the case that you thought you had granted Phase 2 delegation but in fact (mistakenly) granted data access delegation.
I have made a delegation, but my colleague does not see the run in p2. What is wrong?
There are three possible reasons for this to be the case.
  • The run is a La Silla run. Since Phase 2 preparation for La Silla is done through P2PP (and not P2) it is natural that the run does not appear in p2.
  • The delegate needs to make a fresh login to p2 or simply refresh their browser page while still logged into p2.
  • The form of delegation that was granted is incorrect. That is, data access delegation was granted rather than Phase 2 delegation. This can of course be fixed by simply delegating to the colleague Phase 2 access rights.
I have made a delegation, but my colleague cannot download my proprietary data. What is wrong?
There is a simple explanation for this. Namely, the form of delegation that was granted is incorrect. That is, Phase 2 access delegation was granted rather than data access delegation. This can of course be fixed by simply delegating to your colleague data access rights.
The page tells me that the email address I've entered in the delegation email address field is invalid, but I know it's correct. What is going on?
The e-mail address that you supply must match the one that your delegate is using in their ESO User Portal profile. If in doubt, consult your colleague for the correct address.
Can I delegate proprietary data access rights to more than one person?
Yes. There is no limit to the number of people to whom you can grant access to your proprietary data.
Can I delegate Phase 2 rights to more than one person?
Yes. There is no limit to the number of people to whom you can grant Phase 2 access.
Can I delegate Phase 3 access rights to more than one person?
Yes. There is no limit to the number of people to whom you can grant Phase 3 access rights.
When I delegate some right (Phase 2, proprietary data access, Phase 3) do I give up my own rights?
No, you always retain your own rights.
I have been designated as a delegate. As a delegate can I make a further delegation?
Sorry, but "sub-delegations" are not possible.
When does the delegation (or revocation) take effect?
Immediately upon clicking the corresponding delegate, delegate all, revoke, or revoke all button.