Epoch calibrator names Calibrator sources are listed in the Calibrator List on the List Editor Page. The sources are identified using the IAU naming convention referred either to the Besselian epoch of 1950 or the Julian epoch of 2000. Set source initial values Edit the New Source Initial Values. When inserting a new scan in the User Defaults, Observe List, or Source List, the set of values defined here will be automatically entered. Changing the Initial Values at any time does not change the values in any existing entry in one of these lists.
Possible modes are Continuum - for continuum observations.
Spectral Line - to observe with multiple spectral channels. Phased Array - a single summed output of all antennas in the subarray is desired. Single dish - only a single antenna is used. This is used for VLBI observations using a single VLA antenna. Array Configuration Select the Array configuration.