Sensor Serial Numbers and Boom Angles

As we're setting up we'll put in the numbers we're recording...

Note St9 is slightly different because we didn't notice until later that the compass had a previous non-zero deviation cranked in, which we subsequently removed and took the 'correct reading'.   ie. all compass readings are with respect to a '0-degree' deviation angle.

Note: Sonic angles are looking into the boom.   ie the sensors are pointing to the northeast roughly toward the wind generator.

Note: Gill angles are looking from the boom to the SE.  The red dot is oriented pointed toward the boom, ie 180+reading.