# CoreMotionMagnetometerData
Representation of a magnetometer event.
NOTE
This is an abstract type. Any object of this structure can be used where this type is used.
# Properties
# magneticField READONLY
magneticField :CoreMotionMagneticField
The magnetic field measured by the magnetometer.
For more information, see iOS Developer Library: CMMagnetometerData.magneticField property.
# timestamp READONLY
timestamp :Number
The time when the logged item is valid.
The time stamp is the amount of time in milliseconds since the phone booted.