Inclinometry was performed as follows:

    Datasets  El  Dirn     HST     mean leg temperatures   Humidity
                          start     start   middle   end       %
  ( 20071125 88.8  cw     ~08:00     2.2      2.7     3.5      20 
    20071125 88.8 ccw     ~10:45     3.5      4.1     4.6      16  )
    20071223  89   cw     ~07:30     0.7      0.8     1.0      75
    20071223  89  ccw     ~07:30     1.0      1.6     2.4      75

Data is recorded from the 3 active inclinometers and one of the two strain gauge channels. The LT trace is abnormally low, so the RT data is used to correct LX & LY. TY is also +1000mV on average and a tweak to the elevation used is necessary (web page instructions amended 20071230).

• The differences between the (CW) model derived from these new data and the previous model of 25 Nov are shown below:
  
  Click for better image

• The rms scatter in the differences in (F1,F2,F3) are (0.31", 0.42", 0.41") cf (0.59", 0.78", 0.65") previously.

• The difference between the CW and CCW models is shown below:
  

  . . . and is of the 'small amplitude' type seen regularly this year.

  The CW-CCW data were used to generate a hybrid track model, installed at ~HST 11:00 on 24 Dec 2007.

  The symmetry remains OK; strain gauge data show a little increase in loads.