	ELVA	TTAT
	Project one to one with a Proposal (per Facility)
	Program Block(s) one or many per project	I think one is made per Allocation Disposition? Maybe that's not true. Need definition around PB
	Scheduling Block(s) one or many per Program Block	These are like our Observation Specification Dispositions
	Scan List 1 per SB	Same as ours
	Scan(s) one or many per Scan List	Same
	Subscan(s) one or many per Scan	Same

Data to Transform

Source

	TTAT Source	EVLA Source
Current Definition	Name Nominal Position Pointing Patterns (These are VLA pointing patterns) Type: Single, Discrete, OTF Single (is the case of 1 for Discrete really) Position Requested Time Discrete: Position per pointing Requested time per pointing number of pointings OTF: time per row Position of first pointing in row position of last pointing in row number of rows
Notes	A Source is on one or more Allocated Science Targets and one or more SubScans. Note, if the Allocated Science Target is "is allowed positive disposition" then we would transform it for EVLA.
Attributes	Name	Need
Attributes	Nominal Position	Don't need
Attributes	Pointing Pattern Type	Don't need explicitly
Attributes	If single or discrete: Position per pointing OTF: Position of first point in row/last point in row for each row	Need

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