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20070408 report

CW/CCW inclinometry


Inclinometry was performed as follows:

    Datasets  El Dirn     HST     mean leg temperatures   Humidity
                          start     start   middle   end       %
  ( 20070318  89  cw     ~07:00      -        -       -        - 
    20070318  89 ccw     ~09:30      -        -       -        -   )  
    20070408  89  cw     ~08:00     6.7      7.5     8.2      16
    20070408  89 ccw     ~10:15     8.2      8.8     9.5      16   

Data is recorded from the 3 active inclinometers only: there is no strain gauge data, for instance.

  • The differences between the (CW) model derived from these new data and the previous model of 18 Mar are shown below :

    Click for better image

  • The noise in Ch2 is lower (better) than in recent times.

  • The rms scatter in the differences in (F1,F2,F3) are (0.48", 0.41", 0.77") cf. (0.32", 0.20", 0.86") previously.
  • The difference between the CW and CCW models is shown below:

    . . . and is of the smaller amplitude type as seen, eg, last time.

    The CW-CCW data were used to generate a hybrid track model, installed at HST 13:50 on 09 Apr 2007.

Contact: Iain Coulson. Updated: Mon Apr 9 13:55:26 HST 2007

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