array 4 boom angles

Here are angles I shot today with the DataScope from 1030-1130 today.  John and I don't completely trust datascope readings, but they did seem internally consistent (i.e. when I thought the angle should have been more southerly than the previous reading, it was).

 Note that the 3 sonics on each trident are <reasonably> consistent -- especially 9/10/11u.  Trident 6/7/8u is definitely rotated with respect to trident 9/10/11u.

11t of 130 degrees and 3t and 10t of 134 are not typos.

Finally, note that the relatively close agreement of the horiz array angles are not coincidence -- it is easier to see and adjust (a bit) angles when they are on the horiz array with a close spacing.  Also, the EMT conduit now links all of them together.

P.S. These have now been entered in the cal_files (less 131.7 degrees, as before).

Note Aug14 ~9:30-10:30PDT, I JohnM decided to take a 'shot' myself.   These are in column 'U8-14.   The differences with Steves are in 'UD8-14 '.   When I took these, it was further away than I'd tried before (well beyond the berm), and nominally I had the horizontal reference of the datascope on the horizon with the sonic still in view at the top...ie tried to minimize the tilt angle as best i could.   I aligned visually using symmetry between the 'left-right' probes balanced on either side of the square box.   I only did the upwind at this time because later on the winds were good and I didn't want to mess them up.   From these readings, difference was substantial but consistent with Steve's.....may need to 'cal?'    I'm hoping KK will be able to do a few proper theadolite sun-angle shots tomorrow.