A planned IT Maintenance and Release Window is scheduled between

Saturday, 11 February 2023 at 08:00 CET/04:00 CLST and Sunday, 12 February 2023 at 24:00 CET/20:00 CLST.

From 08:00 CET/04:00 CLST on Saturday, all ESO IT services including ERP, Email, Database Management Systems,
the Scientific Archive, the User Portal, and Internet connectivity on all ESO sites, could be subject to intermittent outages
due to configuration changes in the computer rooms.
Full services won't be guaranteed before Monday, 13 February 2023.  We apologize for any inconvenience caused.

OB Naming Conventions

General Rules

So as to facilitate the observers' job, some OB naming conventions are required. Regardless of the instrument, the following generic prefixes must be used when naming OBs:

  • PRE_ - pre-imaging OB (e.g. PRE_Field A)
  • TOO_ - Target of Opportunity OB (e.g. TOO_GRB-1); see also note below
  • RRM_ - Rapid Response Mode OB (e.g. RRM_grb346+580_3x600s)
  • MOV_ - Moving Target (i.e. solar system) OB (e.g. MOV_TNO-43A)
  • CAL_ - Calibration star (e.g. photometric, telluric, radial velocity, polarization, etc) (e.g. CAL_TNO-43A)

Note: All observations belonging to a ToO run must start with the TOO_ prefix, including those belonging to the other categories mentioned above: for instance, an OB intended to observe a star for calibration of a ToO science observation should have a name starting with TOO_CAL_.
Note: Pre-imaging OBs for moving targets should have a name starting with the prefix MOV_PRE_.

For OB time sequences, please name your OBs in such a way that the sequence is obvious. Examples:

Field A - Night1
Field A - Night2
Field A - Night3

Field B - Baseline
Field B - Baseline + 1 week
Field B - Baseline + 2 weeks

Please use always a unique name for each of your OBs, even if they are identical to each other. For example, a series of 3 identical OBs on NGC 5128 may be called NGC5128-1, NGC5128-2, NGC5128-3, instead of calling all three OBs NGC5128.

Please use always names which do not contain 'No Name'.

Note: allowed characters in the OB name: letters, digits, space, + - _ .

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