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When selecting the Program tab, Phase-2 details can be added either in terms of Science Goals or by specifying Scheduling Block. The Phase-2 Science Goals forms are located under the Science Plan node and are identical to the forms for Phase 1 (see above). For each Science Goal, Science Plan contains an Observing Unit Set (ObsUnitSet) that allows the user to specify dependency rules for the SBs and hence the construction of a complex and detailed observing program. ObsUnitSets contain Scheduling Blocks (SBs) which are the key executable units of a project. SBs contain all necessary observing information to execute a ``single'' observation. A SB can be repeated several times to achieve the desired sensitivity or to reach the maximum allocated time. An SB consists of:
- Targets: Contains the sources to be observed, for science and calibration. Each of these has a Field Source, an Instrument Setup and a set of Observing Parameters. These are together called Resources.
- Resources:
- Field Sources: Each field source defines the details of the source to be observed e.g. positions, velocities, observing pattern.
- Instrument Setup: Specifies the various parameters for the frequency, baseband and correlator settings.
- Observing Parameters: Contains for each target a set of representative observing and sensitivity parameters e.g. cycle and integration times, pointing offsets.
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The ALMA OT Team, 2015 Sep 03