 |
 |
 |
|
ILRS Home  Stations Site Listing Brest
|
|
 |
|
 |
Engineering Sites |
| Mt. Stromlo (STRK) |
| Stafford (STAL) |
Inactive Sites |
| Mendeleevo2 (MDVS) |
Brest: Site Log
Instructions and Update Site Log
You can use the hyperlinks to quickly get to the section of interest or you can scroll down to read them all.
Section: 0. FormSection: 1. Identification of the Ranging System Reference Point (SRP)
Section: 2. Site Location Information
Section: 3. General System Information
Section: 4. Telescope Information
Section: 5. Laser System Information
Section: 6. Receiver System
Section: 7. Tracking Capabilities
Section: 8. Calibration
Section: 9. Time and Frequency Standards
Section: 10. Preprocessing Information
Section: 11. Aircraft Detection
Section: 12. Meteorological Instrumentation
Section: 13. Local Ties, Eccentricities, and Collocation Information
Section: 14. Local Events Possibly Affecting Computed Position
Section: 15. On-Site, Point of Contact Agency Information
Section: 16. Responsible Agency (if different from 15.)
Section: 17. More Information
ILRS Site and System Information Form
International Laser Ranging Service
0. Form
Prepared by (Full Name) : Francis Pierron
Preparer E-mail : francis.pierron@obs-azur.fr
Date Prepared : 2004-09-30
Report Type : Initial
Format Version : 1.1
Back to top
1. Identification of the Ranging System Reference Point (SRP)
Site Name : Brest (Vlbi Pad 1989), France
IERS DOMES Number : 10004M002
CDP Pad ID : 7604
Subnetwork : EUROLAS
Description : MONUMENT
Monument Description : Marker
Monument Inscription : N.A.
Mark Description : Chiselled cross
Date Installed : 1989
Date Removed :
Geologic Characteristic : BEDROCK
Additional Information : (multiple lines)
Back to top
2. Site Location Information
City or Town : Brest
State or Province : Bretagne
Country : France
Tectonic Plate : Eurasian Plate
Approximate Position
X coordinate [m]:
Y coordinate [m]:
Z coordinate [m]:
Latitude [deg]: 48.4078611 N
Longitude [deg]: 4.503833 O
Elevation [m]: 104.8
Additional Information : Permanents GPS and Tide Gauges in Brest
Back to top
3. General System Information
3.01 System Name : FTLRS
4-Character Code : BREF
CDP System Number : 69
CDP Occupation Number : 01
Eccentricity to SRP
North [m]: 0.0000 +- 0.001
East [m]: 0.0000 +- 0.001
Up [m]: 1.8455 +- 0.001
Date Measured : 2004-09-10
Date Installed : 2004-09-10
Date Removed : 2004-10-31
Additional Information :
Back to top
4. Telescope Information
4.01 Receiving Telescope Type : CASSEGRAIN
Aperture [m]: .13
Mount : AZ-EL
Xmitting Telescope Type : CASSEGRAIN
Aperture [m]: 0.13
Tracking Camera Type : CCD
Model : SV0500
Manufacturer : Digital vison technologie
Field of View [deg]: .066
Minimum Magnitude [mag]: 3
Transmit/Receive Path : COMMON
Transmit/Receive Switch : POLARIZER
Max Slew Rate Az [deg/s]: 30
Max Slew Rate El [deg/s]: 10
Max Used Tracking Rate Az : 20
Max Used Tracking Rate El : 10
Telescope Shelter : TENT
Daylight Filter Type : Interferential filter oven controled
Dayl. Filt. Bandwidth [nm]: 1.00
Adjustable Attenuation : RECEIVE
Transmit Efficiency : 0.45
Receive Efficiency : 0.20
Date Installed : 1996-09-01
Date Removed :
Additional Information : (multiple lines)
Back to top
5. Laser System Information
5.01 Laser Type : ND:YAG
Number of Amplifiers : 1
Primary Wavelength [nm]: 1064
Primary Maximum Energy [mJ]:
Secondary Wavelength [nm]: 532
Secondary Max. Energy [mJ]: 20
Xmit Energy Adjustable : YES
Pulse Width (FWHM) [ps]: 35
Max. Repetition Rate [Hz]: 10
Fullw. Beam Divergence ["]: 30
Final Beam Diameter [m]: .10
Eyesafe : NO
Eyesafe Standard : ANSI 136.1
Date Installed : 2001-07-01
Date Removed :
Additional Information : On calibration, attenuated via
amplifier delay and neutral density
Amplifier is double pass.
Back to top
6. Receiver System
6.01.01 Primary Chain
Wavelength [nm]: 532
Detector Type : CSPAD
Manufacturer : PESO Consulting
Model :
Quantum Efficiency [%]: 5
Nominal Gain :
Rise Time [ps]: <2400
Jitter (Single PE)[ps]: <20
Field of View ["]: 50
Date Installed : 2001-07-01
Date Removed :
Signal Processing : Time Walk Compensation
Manufacturer : Graz
Model :
Date Installed : 2001-07-01
Date Removed :
Amplitude Measurement : NO
Return-rate Controlled: YES
Mode of Operation : Few Photons
Time of Flight Observ. : INTERVAL
Manufacturer : Stanford
Model : 620
Resolution [ps]: 4
Precision [ps]: 30
Date Installed : 2001-07-01
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
Back to top
7. Tracking Capabilities
7.01 Satellites
Very Low Alt (<400 km) : YES
Low Altitude (400-2000) : YES
Lageos : YES
GLONASS : NO
Etalon : NO
GPS : NO
Moon : NO
Avge Pass Switch Time [s]: 60
Average values for Lageos
Single Shot RMS [mm]: 17
# of Obs per NP : 50
Use of Semi-trains : YES
# of Semi-train Tracks : 3-4
Range Gate Width [ns]: 200-500000
Beam Pointing Accuracy ["]: 15
Angle Encoder Resolution["]: 0.5
Min. Tracking Elev. [deg]: 10
Operation
Months per Year : 4
Days per Week : 7
Hours per Day : 14
Staff per Shift : 1
System Shared With :
Time Allocated to SLR [%]: 100
Remotely Controllable : NO
Date First Applicable : 2001-07-01
Date Last Applicable : (yyyy-mm-dd)
Additional Information : Tracking Lageos with clear sky only
Back to top
8. Calibration
8.01 Calibration Type : POST
Target Location : EXTERNAL
Target Type : CORNER CUBE
Target Structure : Ground target on building
Target Distance [m]: 180.978
Date Measured : 2004-06-06
Accuracy (mm) [mm]: < 1.5
Verification :
Return-rate Controlled : YES
Mode of Operation : FEW PHOTONS
Average Cal Interval [min]: 30
Single Shot RMS [mm]: < 6 ± 1
Edit Criterion 1st Chain : ITERATIVE 2.5 SIGMA
Edit Criterion 2nd Chain : N.A.
Application of Cal Data : AVERAGE
Date Installed : 2003-03-01
Date Removed :
Additional Information : (multiple lines)
Back to top
9. Time and Frequency Standards
9.01.01 Frequency Standard Type : Rubidium disciplined by GPS
Model :
Manufacturer : Datum
Short Term Stab. [e-12]: 50
Long Term Stab. [e-12]: 700
Time Reference : GPS
Synchronization : GPS
Epoch Accuracy [ns]: <100
Date Installed : 2001-07-01
Date Removed :
Additional Information :
9.01.01 Frequency Standard Type : Rubidium disciplined by GPS
Model : 8810
Manufacturer : Trak System
Short Term Stab. [e-12]: 50
Long Term Stab. [e-12]: 700
Time Reference : GPS
Synchronization : GPS
Epoch Accuracy [ns]: <100
Date Installed : 1995-09-01
Date Removed : 1999-01-01
Additional Information :
9.02.01 GPS Timing Rcvr Model : 9390-6000
Manufacturer : Trimble
Date Installed : 1995-09-01
Date Removed : 1999-01-01
Additional Information :
Back to top
10. Preprocessing Information
10.01 On-site NP Generation : YES
Data Screening : IRV+POLYNOMIAL
Edit Criterion 1st Chain : MANUAL+ITERATIVE 2.4 SIGMA
Edit Criterion 2nd Chain : N.A.
Upload interval : AFTER EACH PASS
Date First Applicable : 1995-05-09
Date Last Applicable : (yyyy-mm-dd)
Additional Information : (multiple lines)
Back to top
11. Aircraft Detection
11.01 Detection Type : MOUNT OBSERVER
Date Installed : 1995-09-01
Date Removed : (yyyy-mm-dd)
Additional Information : Observer uses tracking CCD Camera
at night
Back to top
12. Meteorological Instrumentation
12.01.01 Pressure Sensor Model : HMP243
Manufacturer : Vaisala
Recording Interval : PER PASS
Accuracy [mbar]: 0.2
Height Diff to SRP [m]: <0.5
Date Installed : 2001-07-01
Calibration Interval : YEARLY
Date Removed :
Additional Information :
12.01.02 Pressure Sensor Model : AK 700-1100
Manufacturer : Effa
Recording Interval : PER PASS
Accuracy [mbar]: 0.5
Height Diff to SRP [m]: <0.5
Date Installed : 1995-09-01
Calibration Interval : YEARLY
Date Removed : 2001-06-01
Additional Information :
12.02.01 Temp Sensor Model : HMP243
Manufacturer : Vaisala
Recording Interval : PER PASS
Accuracy [deg C]: 0.2
Date Installed : 2001-07-01
Calibration Interval : YEARLY
Date Removed :
Additional Information :
12.03.01 Humidity Sensor Model : HMP243
Manufacturer : Vaisala
Recording Interval : PER PASS
Accuracy [% rel h]: 5
Date Installed : 2001-07-01
Calibration Interval : YEARLY
Date Removed :
Additional Information :
Back to top
13. Local Ties, Eccentricities, and Collocation Information
13.01 Collocated Permanent Geodetic Systems
GPS : IGS
Date Installed :
Date Removed :
Additional Information : 1004M004
Tide Gauge :
Date Installed :
Date Removed :
Additional Information : Permanent (Acoustic)
Tide Gauge :
Date Installed : 1806
Date Removed :
Additional Information : Permanent (Floating type)
operational
Sea level data since 1806.
GLONASS :
Date Installed : (yyyy-mm-dd)
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
DORIS : NO
Date Installed :
Date Removed :
Additional Information : (multiple lines)
PRARE : NO
Date Installed : (yyyy-mm-dd)
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
VLBI : NO
Date Installed :
Date Removed :
Additional Information : (multiple lines)
Gravimeter : NO
Date Installed :
Date Removed :
Additional Information :
13.02.01 Local Ties from the SRP to Other Monuments or Systems on Site
Monument Name :
Instrumentation Type : GPS
Instrumentation Status : Permanent
DOMES Number : 10004M004
CDP Number :
Differential Components (ITRS)
dx [m]:
dy [m]:
dz [m]:
Date Measured :
Determined by :
Date Installed :
Date Removed :
Additional Information :
Monument Name :
Instrumentation Type : VLBI
Instrumentation Status : Mobile
DOMES Number : 10004M002
CDP Number : 7604
Differential Components (ITRS)
dx [m]:
dy [m]:
dz [m]:
Date Measured :
Determined by :
Date Installed : 1989
Date Removed : 1989
Additional Information :
Back to top
14. Local Events Possibly Affecting Computed Position
14.01 Date :
Event :
Additional Information :
Back to top
15. On-Site, Point of Contact Agency Information
Agency : Observatoire de la côte d'Azur, CNES/GRGS
Mailing Address : Avenue N. Copernic, 06130 Grasse - France
Primary Contact
Contact Name : Francis Pierron
Telephone (primary) : 33 493405420
Telephone (secondary) : 33 493405454
Fax : 33 493092614
E-mail : francis.pierron@obs-azur.fr
Secondary Contact
Contact Name : Pierre Exertier
Telephone (primary) : 33 493405382
Telephone (secondary) : 33 493405353
Fax : 33 493405333
E-mail : pierre.exertier@obs-azur.fr
Additional Information : On-Site Agency Epshom Brest
Back to top
16. Responsible Agency (if different from 15.)
Agency : (multiple lines)
Mailing Address : (multiple lines)
Primary Contact
Contact Name :
Telephone (primary) :
Telephone (secondary) :
Fax :
E-mail :
Secondary Contact
Contact Name :
Telephone (primary) :
Telephone (secondary) :
Fax :
E-mail :
Additional Information : (multiple lines)
Back to top
17. More Information
URL for More Information : http://www.obs-azur.fr
Hardcopy on File
Site Map : NO
Site Diagram : NO
Horizon Mask : NO
Monument Description : NO
Site Pictures : YES
Additional Information : (multiple line
Back to top
