CelestialObject.Epoch Property

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Description

Current date for the CelestialObject measured in International Atomic Time (TAI) in the Modified Julian Date format. The returned value has units of days, measured from January 5, 1941 at 12:00:00.000 TAI. When retrieving information about the state of a Celestial Object, the CelestialObject GetPositionAtEpoch, GetVelocityAtEpoch, or GetPosVelAtEpoch methods should be used instead of attempting to access this property.

Timing Precision Mode

This page describes functionality in nanosecond timing precision mode.

Click here to see the documentation for this object in millisecond timing precision mode.

Attributes

Type:	timespan
Access:	read/write
Units:	day
Default Value:	"Undefined"

Syntax

myTimeSpan1 = myCelestialObject1.Epoch;

myCelestialObject1.Epoch = myTimeSpan1;