External Heading Update (0x0D,0x17)
| Description |
Provide a filter measurement from an external heading source |
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| Notes |
The heading must be the sensor frame with respect to the NED frame. The heading update control must be set to external for this command to update the filter; otherwise it is NACK'd. Heading angle uncertainties of <= 0.0 will be NACK'd Please refer to your device user manual for information on the maximum rate of this message. On -25 models, if the declination source (0x0D, 0x43) is not valid, true heading updates will be NACK'd. On -45 models, if the declination source is invalid, magnetic heading updates will be NACK'd. |
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| Parameter Name | Data Type | Description |
| Field Length | u8 | 11 |
| Descriptor | u8 | 0x17 |
| Heading | float | Bounded by +-PI [radians] |
| Heading Uncertainty | float | 1-sigma [radians] |
| Type | u8 | 1 - True, 2 - Magnetic |