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Each of the following parameters can be entered separately for ALMA(i.e. the main array with 50 12-m antennas), the ALMA Compact Array(16 7-m antennas) and the Total Power Array (4 12-m antennas operatingas single dishes).
-
Number of Antennas
: The number of antennas defaults to the numbers expected for Cycle 0.
-
Resolution
: Desired angular resolution. This is a required parameter if a sensitivity in temperature units is entered or desired. For Cycle 0, this should be set to the angular resolution of one of the two available configurations (as displayed on the Control and Performance section of the Science Goal).
-
Sensitivity (rms)
: Required sensitivity or that derived from the integration time if that is requested. May be specified in flux or temperature units. Note that using the
Alt
key when changing the unit choice will perform a conversion of the value. Also displayed are the equivalent values of sensitivity in the opposite unit to that selected. Further note that changing this parameter in the calculator will also cause it to be updated in the Control and Performance section of the Science Goal.
-
Integration Time
: Total integration time recommended. May be specified in order to derive an estimated sensitivity.
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ALMA Sensitivity Calculator
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Common Parameters
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The ALMA OT Team, 2011 May 20