This inclinometry run was carried out on 7th July following a central bearing adjustment earlier in the day.

    Datasets    El   Dirn      HST       mean leg temperatures    Humidity
                              start      start   middle   end        %
   (20090628    89     cw     08:30      12.7    13.5    14.3        4     
    20090628    89    ccw     11:45      14.3    15.0    15.7        6)
    20090707    89     cw     16:00      12.2    12.6    12.7       13      
    20090707    89    ccw     19:15      12.7    12.2    11.5       25

The new data are recorded from the 3 active inclinometers and one of the two strain gauge channels. The LT trace, which showed strange behaviour during the previous inclinometry run now shows no problems.

• The differences between the (CW) model derived from this run and the previous run on 28th June are shown below.
  Click for larger image

• The resulting rms scatters in the differences in (F1,F2,F3) for the left hand plot are (0.68", 0.51", 0.31") compared to (0.34", 0.28", 0.42") last time.

• The CW-CCW profile is normal, and is used to generate a hybrid track model which was installed on the 7th July at 22:00.

  
  Strain Data
  The engineering work on 7th July included and central bearing adjustment and the positioning of some balance weights over the left front wheel to increase the loading on wheel 4. The plot below shows the loadings on each wheel following this work. The strain gauge analysis shows a return to nonimal performance (see strain gauge data).