modeldelaysTab.html

MODEL_DELAYS Group delay model components.


Name	Format	Units	Measure	Comments

Columns

Key
ANTENNA_ID	Int			Antenna identifier
TIME	Double	s	EPOCH	Interval mid-point
INTERVAL	Double	s		Time interval for validity of the parameters

Data
ATM_DELAY	Double(2)	s		Wet and dry atmospheric delatys
ATM_DELAY_RATE	Double(2)			Wet and dry atmospheric delaty rates
GEOM_DELAY	Double	s		Geometric delay
GEOM_DELAY_RATE	Double			Geometric delay rate
CLOCK	Double	s		Electronic delay
CLOCK_RATE	Double			Electronic delay rate
LO_OFFSET	Float( N_LO)	Hz		Antenna LO offset
LO_OFFSET_RATE	Float( N_LO)	Hz s^-1		Antenna LO offset rate
DISP_DELAY	Float( N_LO)			Calculated dispersive delay
DISP_DELAY_RATE	Float( N_LO)			Calculated dispersive delay rate

Notes: This optional table contains separate group delay model components directly from the program running in real time on the correlator. Those values are useful for reconstructing the interferometer model after the fact, mainly for debugging purposes.

ANTENNA_ID: Antenna identifier, as indexed from an element in the ANTENNA_ARRAY collection in the CONFIG_DESCRIPTION table.
TIME: Mid-point of time interval for which the feed parameters in the row are valid. The same reference used for the TIME column in the MAIN must be used.
INTERVAL: Time interval.
ATM_DELAY: Wet and dry atmosphere component delays
ATM_DELAY_RATE: Wet and dry atmosphere component delay rates
GEOM_DELAY: Geometric delay
GEOM_DELAY_RATE: Geometric delay rate
CLOCK: Electronic delay
CLOCK_RATE: Electronic delay rate
LO_OFFSET: Antenna LO offset
LO_OFFSET_RATE: Antenna LO offset rate
DISP_DELAY: Dispersive delay
DISP_DELAY_RATE: Dispersive delay rate