Inclinometry was done as follows:

    Datasets  El Dirn     HST     mean leg temperatures   Humidity
                          start     start   middle   end       %
  ( 20060821  89  cw      00:29      8.0      7.4    7.0      -- 
    20060822  89  cw      18:00       -        -      -       -- 
    20060824  89 ccw      04:00      8.1      7.5    7.1      -- 
    20060825  89  cw      01:00      6.7      6.4    6.2      --
    20060825  89 ccw      04:00      6.2      6.1    6.0      -- 
    20060826  89  cw      05:00      4.1      3.9    4.0      --
    20060826  89 ccw     ~08:00      4.0      4.3    4.8      -- )
    20060829  89  cw      03:10      ---      ---    ---      --
    20060829  89 ccw     ~06:00      ---      ---    ---      --

The datafiles are given HST-derived names. Data is recorded from the 3 active inclinometers only: there is no strain gauge data, for instance.

The data are good, and of normal TY amplitude:

• The difference between the (CW) model derived from these new data and that currently in use since the 23rd is shown below:
  

  The difference in F3 (the elevation term) is particularly significant, hinting at possible residual problems in the TCS.

  CW-CCW
  The CW-CCW differences from the new data are shown here:

  

  The CW-CCW differences are v.similar to those seen in 2005.

  Using these CW-CCW differences the new CW model was hybridized and the hybrid track model was installed at HST 10:45 on 29 August 2006. The validity of this new model should be considered provisional.