ASENSOR_ADDITIONAL_INFO_BEGIN

Marks the beginning of additional information frames

Marks the end of additional information frames

Estimation of the delay that is not tracked by sensor timestamps. This includes delay introduced by sensor front-end filtering, data transport, etc. float[2]: delay in seconds, standard deviation of estimated value

float: Celsius temperature

First three rows of a homogeneous matrix, which represents calibration to a three-element vector raw sensor reading. float[12]: 3x4 matrix in row major order

Location and orientation of sensor element in the device frame: origin is the geometric center of the mobile device screen surface; the axis definition corresponds to Android sensor definitions. float[12]: 3x4 matrix in row major order

float[2]: raw sample period in seconds, standard deviation of sampling period