Serendipitous RxA pointing during the 4 nights since the pointing model was established on 01 Sep are reported. Instead of (daz,del) and their errors the results of fitting the TPOINT parameters IE and CA and their errors (dS,dZ) are quoted:

    UT date   No. of points     CA    dS      IE    dZ   Notes
   ---------  -------------    ----------   -----------  -----
   20060902        11          0.1 +- 0.8   -0.4 +- 2.4
   20060903        12          0.2 +- 1.7    0.6 +- 1.5  *
   20060904        19          1.4 +- 1.9   -0.5 +- 2.7
   20060905        13          1.9 +- 2.5    2.4 +- 1.9

* A 13th logged point was excluded as deviant.

The combined data are show below :

Collectively (N=55), they exhibit mean (CA,IE)=(-0.1", -0.1"), rms scatters in (dS,dZ) of (2.0", 2.4"), and no obvious sign of systematics.

20060906
The first lot of RxB pointings gave

    UT date   No. of points     CA    dS      IE    dZ   Notes
   ---------  -------------    ----------   -----------  -----
   20060906        10         30.0 +- 2.7   40.3 +- 4.1  *

* the first and last logged data of an original 12 were rejected as deviants

The collimation file for RxB (initalise_rxb.ent) was updated.