From: Antje Behrens
Sent: Thursday, December 21, 2006 4:55 PM
To: Werner Riegler; Peter Glassel; Wolfgang Klempt; Joachim Baechler
Subject: Preliminary results TPC

Attachments: TPC_061220_send_V1.xls

Dear All,

Please find enclosed the preliminary results for the TPC measurement done Tuesday/Wednesday.

I included the comparison to the former measurement done in November 2004 (EDMS 526340) and the original levelling done in December 2003 (EDMS427488).
The point name description can be found in EDMS 526340.

I present the results in 3 different coordinate systems:
- Coordinate system A
A best fit transformation has been done only on the outer reference points of the measurement done in November 2004. Differences are presented for all measured points.

- Coordinate system B
A best fit transformation has been done on all outer and inner reference points of the measurement done in November 2004. Differences are presented for all measured points.

- Coordinate system C
The coordinate system is defined as explained in EDMS 526340. 
This coordinate system seems to be not practical, because the TPC is not horizontal anymore.
Differences are presented for all measured points.

The report and additional calculations for this measurement will follow next year, and then we also have to discuss about the procedure of the TPC insertion. 

Merry Christmas,
Antje