The central bearing load was adjusted during the afternoon, and a report by Tomas Chlylek is available here. Inclinometry followed :

    Datasets  El Dirn     HST     mean leg temperatures   Humidity
                          start     start   middle   end       %
 (  20031128  90  cw      03:37      0.7      0.6    0.5     100 
    20031214  90  cw      12:15      1.4      2.2    3.0      15 )     
    20031215  90  cw      15:50      4.4      4.8    4.6      15 

All data channels of the inclinometry data look OK. The resulting model is compared below with the current one - that taken on 28 Nov :

• The result shows the signature of the segmental track - no surprise following the CBLA.
• The differences in (F1,F2,F3) between these two CW models are described by the rms scatters of (0.83", 0.46", 0.51") cf. (0.43", 0.43", 0.42") previously.
• The new CW model was merged with the new (CW-CCW) template to create a new hybrid track model, which was installed at HST 19:00 on 15 Dec 2003.
• Records of the symmetry and strain gauge data have been updated; an expected reduction in wheel loads is clear in the latter plots.

Allsky Pointing followed :
37 data were recorded with SCUBA :

The elevation performance is essentially nominal, while azimuth residuals are a strong function of elevation : a sure sign of an error in the azimuth encoder zero-point (IA). The data were run through TPOINT and a change of 26" in IA and ~1" changes in other terms were determined. With such a new model the performance ought to look like this :

- with rms's in (daz,del) of (1.0", 1.3"). 16 subsequent data had rms's of (1.3",1.2").