Downloading data

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This page is to explain how to download data if you prefer to work outside the LP IT cluster (see Working at the LST-IT center instead).

Please do not copy data directly from the IT cluster on La Palma, as LST is charged for each transferred byte. Instead, copy the data from PIC OR CNAF to which the data is already transferred automatically from LP.

This how-to is based on the presentation by Jordi Delgado on the LST analysis school in January 2022 [1].

Access to data from PIC

Accessing LST data through the web: exploration and download

URL: https://lstcam.data.pic.es

Credentials: using your CTA Consortium account. If you are note yet registered as CTA member, clarify with your supervisor and request a CTA account.

Username: name.surname, password: “the one you defined”

You need to be member of the lst group of CTA users. If you are already LST member (you should when seeing this Wiki page), request by mail to admin-ctan@cta-observatory.org to be added to the lst group.

Accessing through the command line

• This requires to have a PIC account. Register at www.pic.es/register

• At registration, request to be part of the cta-lst group at PIC.

• Access the User Interface: ssh your_pic_account@ui.pic.es

• If you are a MAGIC member and have already a PIC account: You have access through mic.magic.pic.es machines. However, you need to register again at www.pic.es/register if you are not yet member of the cta-lst group. Indicate at registration for LST data access that you are already MAGIC member and provide your PIC user name.

• The data is stored at /pnfs/pic.es/data/cta/LST/Data/.

Access to data from CNAF

to be continued...