Instructions for OB preparation

Please read General Info and Istructions and OB preparation: Additional Guidelines

Deadline for the OB submission

• September 1st, 2026: For targets visible between October 1st 2026 and March 31st 2027

• March 16th, 2027: For targets visible between April 1st and September 30th, 2027

Instruction for ToO observations

Preparation Recommendation

To ensure readiness for an alert, PIs are advised to prepare a template OB in advance, using placeholder coordinates (RA: 00:00:00.000, Dec: 00:00:00.000) while filling all other required fields. This allows the template to be quickly copied, edited, verified, and certified by the PI. It is also recommended to specify a time interval, so that if the OB cannot be executed immediately, it can still be completed before the end of that interval (e.g. the following night).

Currently, the time intervals should range from 16:00 on day X to 16:00 on day Y, where Y can be the following day, one week later, or one month later, depending on the requirements of the run.

Note: A new automated tool for handling the scheduling of ToO OBs now allows PIs to edit and certify ToO OBs immediately after an alert, even during the ongoing observing night. The scheduler will promptly retrieve the information and schedule them as soon as they become feasible.