1. Geodesy Mark Jones EN/SMM-HPA
Revue Interne des Activités Survey HL-LHC

2. EDM Long Distance Control Baseline UR Galleries Design Azimuths
Outline
EDM Long Distance Control Baseline
UR Galleries Design Azimuths
Meetings and Communications
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

3. EDM Long Distance Control Baseline
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

4. EDM Long Distance Control Baseline
Analyses finished and documented
New calibration parameters inserted into Survey database (constant + scale factor)
Mekometer (ME ) + prism (KE.3)
Scale factor now applied to measurements too
Measurements reduced with new parameters
Approximate coordinates for baseline pillars inserted in database
Based on values obtained visually from GIS system
Advice on measurement conditions
Proposed modifications to CaliDist, LGC, Survey dB
Proposed new measurement module for Mekometer
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

5. EDM Long Distance Control Baseline
New approximate coordinates for pillars - real position and orientation of baseline
Reference Pillar X Y Z H
(m)
SURFACE.PBASE.1.
SURFACE.PBASE.2.
SURFACE.PBASE.3.
SURFACE.PBASE.4.
SURFACE.PBASE.5.
SURFACE.PBASE.6.
SURFACE.PBASE.7.
SURFACE.PBASE.8.
SURFACE.PBASE.9.
SURFACE.PBASE.10.
SURFACE.PBASE.11.
SURFACE.PBASE.12.
SURFACE.PBASE.13.
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

6. EDM Long Distance Control Baseline
New reference distances relative to PBASE.2
Reference Pillar
Target Pillar
Reference Distances
(m)
PBASE.2
0.0000
PBASE.3
PBASE.4
PBASE.5
PBASE.6
PBASE.7
PBASE.8
PBASE.9
PBASE.10
PBASE.11
PBASE.12
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

7. UR Galleries design azimuth
UR galleries at Point 1 and Point 5 to be parallel to LHC tunnel
Processing of Azimuth Data
LHC Tunnel at Point1 and Point 5
Re-establish an Azimuth Control Baseline
GP.404  GP.228
Geodetic Base (Pilier.1  Cible.2)
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

8. Reference Azimuths Gyro-Theodolite re-calibrated by DMT
Geodetic Base reference azimuth
Gon
Gyro  ~3 mGon difference
Astronomical Azimuth determination
Gon
DMT calibration modified
Database
Calibration constant E + DE (E = Gon; DE = Gon)
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

9. Point 1 Calculation Results
-0.4 mgon
0.1 mgon
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

10. Point 5 Calculation Results
0.3 mgon
0.1 mgon
0.7 mgon
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

11. Azimuth and Bearing Relationships
g = meridian
convergence
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

12. Azimuth and Bearing Relationships
g = meridian
convergence
At P5, DgSTN ~1 mgon
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

13. CGRF and Geocentric Geodetic System
Misalignment Angles
ITRF97-CGRF rotations
e (x)
-4.67 cc
e (y)
18.25
e (z)
9.91
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

14. Revised Azimuth and Bearing Relationships
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

15. Revised Azimuth and Bearing Relationships
Parameters handled by LGC
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

16. Revised Azimuth and Bearing Relationships
N.B. a0 parameter not yet implemented!
Should be applied by hand if required
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

17. Estimated Azimuths
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

18. Meetings and Communications
Memos to SMB-SE
EDM Long Distance Control Baseline Distances
Tunnel Azimuths at LHC Interaction Points (IP.1 and IP.5)
Engineer and Contractor Surveyors – Point 1 & Point 5
Companies changed
Explanations of reference systems and software
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

19. To Do
Documentation
Calculations and Analyses of Reference Network Co-ordinates
Calculations and Analyses of Reference Azimuths Determination
Software Data Capture Modules Specifications
Gyro-Theodolite (preliminary discussions)
Mekometer
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

20. To Do Development of new observation models
ECVE (and ECSP), Tilts, HLS, WPS, FSI, DOMS
HLS can be achieved with adaptations of DVER
Tilts possible with transformation of Frames (this transformation gives lots of extra flexibility)
Both options cleaner with a new observation type
Specifications of data parameters to be managed
Instruments/Sensors and Observations data
Fiducialisation and assembly data
Point and Frame Transformation parameters’ standard deviations
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

21. All parameters required for the HL-LHC Civil Engineering established
Conclusions
All parameters required for the HL-LHC Civil Engineering established
Documentation to do
Software and Database modifications have been made and/or will be required
Other modifications are proposed
New data capture modules would avoid manual manipulation and construction of data files
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy

22. Thank you for your attention
Mark Jones EN/SMM-HPA Revue interne des activités Survey HL-LHC - Geodesy