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ILRS Home  Stations Site Listing Wettzell
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Wettzell: Site Log
Instructions and Update Site Log
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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) : Guenther Herold
Preparer E-mail : herold@wettzell.ifag.de
Date Prepared : 2004-10-04
Report Type : UPDATE
Format Version : 1.0
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1. Identification of the Ranging System Reference Point (SRP)
Site Name : Wettzell
IERS DOMES Number : 14201S018
CDP Pad ID : 8834
Subnetwork : EUROLAS
Description : AZ EL INTERSECT
Monument Description : N.A.
Monument Inscription : N.A.
Mark Description : N.A.
Date Installed : 1989-03-01
Date Removed : (yyyy-mm-dd)
Geologic Characteristic : BEDROCK
Additional Information : Intersection point is tied to a local
survey network consisting of 20 network
pillars. Survey accuracy is better than
1 mm.
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2. Site Location Information
City or Town : Koetzting
State or Province : Bavaria
Country : Germany
Tectonic Plate : Eurasian
Approximate Position
X coordinate [m]: 4075576.8
Y coordinate [m]: 931785.5
Z coordinate [m]: 4801583.6
Latitude [deg]: 49.1444 N
Longitude [deg]: 12.8780 E
Elevation [m]: 665
Additional Information : (multiple lines)
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3. General System Information
3.01 System Name : WLRS
4-Character Code : WETL
CDP System Number : 10
CDP Occupation Number : 01
Eccentricity to SRP (if Not Identical With SRP)
North [m]: 0
East [m]: 0
Up [m]: 0
Date Measured : N.A.
Date Installed : 1989-03-01
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
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4. Telescope Information
4.01 Receiving Telescope Type : Coudé afocal
Aperture [m]: 0.75
Mount : AZ-EL
Xmitting Telescope Type : Coudé afocal
Aperture [m]: 0.75
Tracking Camera Type : CCD
Model : Minerva MK121
Manufacturer : GRUNDIG
Field of View [deg]: 0.02
Minimum Magnitude [mag]: 8
Transmit/Receive Path : COMMON COUDE
Transmit/Receive Switch : ROTATING MIRROR
Max Slew Rate Az [deg/s]: 10
Max Slew Rate El [deg/s]: 5
Max Used Tracking Rate Az : 10
Max Used Tracking Rate El : 5
Telescope Shelter : DOME
Daylight Filter Type : SPECTRAL FILTER and FABRY-PEROT
Dayl. Filt. Bandwidth [nm]: 12
Adjustable Attenuation : RECEIVE
Transmit Efficiency : 0.5
Receive Efficiency : 0.5
Date Installed : 1989-03-01
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
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5. Laser System Information
5.01 Laser Type : ND:YAG
Number of Amplifiers : 4
Primary Wavelength [nm]: 1064
Primary Maximum Energy [mJ]: 360
Secondary Wavelength [nm]: 532
Secondary Max. Energy [mJ]: 180
Xmit Energy Adjustable : NO
Pulse Width (FWHM) [ps]: 80
Max. Repetition Rate [Hz]: 10
Fullw. Beam Divergence ["]: 1
Final Beam Diameter [m]: 0.015
Eyesafe : NO
Eyesafe Standard : (ANSI 136.1/N.A./etc)
Date Installed : 1998-10-01
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
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6. Receiver System
6.01.01 Primary Chain
Wavelength [nm]: 532
Detector Type : MCP
Manufacturer : ITT
Model : F4129F
Quantum Efficiency [%]: 4
Nominal Gain : 1000000
Rise Time [ps]: < 1000
Jitter (Single PE)[ps]: 100 - 130
Field of View ["]: 30
Date Installed : 1989-03-01
Date Removed : (yyyy-mm-dd)
Signal Processing : CFD
Manufacturer : TENNELEC
Model : TC 454
Date Installed : 1989-03-01
Date Removed : (yyyy-mm-dd)
Amplitude Measurement : NO
Return-rate Controlled: NO
Mode of Operation : FEW PHOTON
Time of Flight Observ. : EVENT
Manufacturer : PESO Consulting
Model : PET 4
Resolution [ps]: 1.22
Precision [ps]: 7
Date Installed : 2000-10-12
Date Removed : (yyyy-mm-dd)
Additional Information : used for LEO satellites
and occasionally LAGEOS
6.01.02 Primary Chain
Wavelength [nm]: 532
Detector Type : MCP
Manufacturer : ITT
Model : F4129F
Quantum Efficiency [%]: 4
Nominal Gain : 1.00E+06
Rise Time [ps]: < 1000
Jitter (Single PE)[ps]: 100 - 130
Field of View ["]: 30
Date Installed : 1989-03-01
Date Removed : (yyyy-mm-dd)
Signal Processing : CFD
Manufacturer : Tennelec
Model : TC454
Date Installed : 1989-03-01
Date Removed : (yyyy-mm-dd)
Amplitude Measurement : NO
Return-rate Controlled: NO
Mode of Operation : FEW PHOTON
Time of Flight Observ. : EVENT
Manufacturer : LeCroy
Model : 2229
Resolution [ps]: <40
Precision [ps]: 50
Date Installed : 1989-03-01
Date Removed : 2000-10-12
Additional Information : used for LEO satellites
and occasionally LAGEOS
6.02.01 Secondary Chain
Wavelength [nm]: 532
Detector Type : APD
Manufacturer : Silicon Sensor
Model : 550-ADH-230-CHIP
Quantum Efficiency [%]: > 50
Nominal Gain :
Rise Time [ps]: 150
Jitter (Single PE)[ps]: 70 - 100
Field of View ["]: 18
Date Installed : 1992-12-01
Date Removed : (yyyy-mm-dd)
Signal Processing : N.A.
Manufacturer : Ortec
Model : 935
Date Installed : 1989-03-01
Date Removed : (yyyy-mm-dd)
Amplitude Measurement : NO
Return-rate Controlled: NO
Mode of Operation : SINGLE
Time of Flight Observ. : EVENT
Manufacturer : PESO Consulting
Model : PET 4
Resolution [ps]: 1.22
Precision [ps]: 7
Date Installed : 2000-10-12
Date Removed : (yyyy-mm-dd)
Additional Information : used for LAGEOS and
high satellites
6.02.02 Secondary Chain
Wavelength [nm]: 532
Detector Type : APD
Manufacturer : Silicon Sensor
Model : 550-ADH-230-CHIP
Quantum Efficiency [%]: > 50
Nominal Gain :
Rise Time [ps]: 150
Jitter (Single PE)[ps]: 70 - 100
Field of View ["]: 18
Date Installed : 1992-12-01
Date Removed : (yyyy-mm-dd)
Signal Processing : N.A.
Manufacturer : Ortec
Model : 935
Date Installed : 1989-03-01
Date Removed : (yyyy-mm-dd)
Amplitude Measurement : NO
Return-rate Controlled: NO
Mode of Operation : SINGLE
Time of Flight Observ. : EVENT
Manufacturer : LeCroy
Model : 2229
Resolution [ps]: <40
Precision [ps]: 50
Date Installed : 1989-03-01
Date Removed : 2000-10-12
Additional Information : used for LAGEOS and
high satellites
6.03.01 Terciary Chain
Wavelength [nm]: 532
Detector Type : PMT
Manufacturer : Hamamatsu
Model : 7422p-40
Quantum Efficiency [%]: 3
Nominal Gain : 2.00E+06
Rise Time [ps]: 1000
Jitter (Single PE)[ps]: 50
Field of View ["]: 60
Date Installed : 2002-01-01
Date Removed : (yyyy-mm-dd)
Signal Processing : CFD
Manufacturer : TENNELEC
Model : TC 454
Date Installed : 1989-03-01
Date Removed : (yyyy-mm-dd)
Amplitude Measurement : NO
Return-rate Controlled: NO
Mode of Operation : SINGLE
Time of Flight Observ. : EVENT
Manufacturer : PESO Consulting
Model : PET4
Resolution [ps]: < 7
Precision [ps]: 1.2
Date Installed : 2000-10-12
Date Removed : (yyyy-mm-dd)
Additional Information : This configuration is used for very low
satellites (i.e. CHAMP, GRACE). A second
aperture for receiving the signal of
very low orbiting satellites has been
added to eliminate the switching the
rotating mirror between the
common transmit and receive optics.
6.03.01 Quarternary Chain
Wavelength [nm]: 532
Detector Type : PMT
Manufacturer : Hamamatsu
Model : 7422p-40
Quantum Efficiency [%]: 3
Nominal Gain : 2.00E+06
Rise Time [ps]: 1000
Jitter (Single PE)[ps]: 50
Field of View ["]: 60
Date Installed : 2002-01-01
Date Removed : (yyyy-mm-dd)
Signal Processing : CFD
Manufacturer : TENNELEC
Model : TC 454
Date Installed : 1989-03-01
Date Removed : (yyyy-mm-dd)
Amplitude Measurement : NO
Return-rate Controlled: NO
Mode of Operation : SINGLE
Time of Flight Observ. : EVENT
Manufacturer : PESO Consulting
Model : PET4
Resolution [ps]: < 7
Precision [ps]: 1.2
Date Installed : 2003-03-20
Date Removed : (yyyy-mm-dd)
Additional Information : used for Satellites orbiting up to LAGEOS
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7. Tracking Capabilities
7.01 Satellites
Very Low Alt (<400 km) : YES
Low Altitude (400-2000) : YES
Lageos : YES
GLONASS : YES
Etalon : YES
GPS : YES
Moon : NIGHT
Avge Pass Switch Time [s]: ~ 50
Average values for Lageos
Single Shot RMS [mm]: 20
# of Obs per NP : 150
Use of Semi-trains : NO
# of Semi-train Tracks : N.A.
Range Gate Width [ns]: 200 - 3000
Beam Pointing Accuracy ["]: 2
Angle Encoder Resolution["]: AZ 0.075 EL 0.090
Min. Tracking Elev. [deg]: 10
Operation
Months per Year : 12
Days per Week : 7
Hours per Day : 24
Staff per Shift : 1
System Shared With : NOTHING
Time Allocated to SLR [%]: 100
Remotely Controllable : NO
Date First Applicable : 1991-06-07
Date Last Applicable : (yyyy-mm-dd hh:mm UT)
Additional Information : (multiple lines)
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8. Calibration
8.01 Calibration Type : REALTIME
Target Location : INTERNAL
Target Type : mirror
Target Structure : N.A.
Target Distance [m]:
Date Measured : (yyyy-mm-dd)
Accuracy (mm) [mm]:
Verification : by external target
Return-rate Controlled : NO
Mode of Operation : SINGLE
Average Cal Interval [min]: parallel to each satellite observation
Single Shot RMS [mm]: 10
Edit Criterion 1st Chain : 2.5 SIGMA
Edit Criterion 2nd Chain : 2.5 SIGMA
Application of Cal Data : LINEAR FIT
Date Installed : 1989-03-01
Date Removed : (yyyy-mm-dd)
Additional Information : Calibration to an external target is
necessary to determine the additional
constant from the calibration point to the
intersect of azimuth and elevation. This
calibration is done twice a year or when
required.
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9. Time and Frequency Standards
9.01.01 Frequency Standard Type : H-MASER
Model : EFOS
Manufacturer : Observatoire Cantonal de Neuchatel
Short Term Stab. [e-12]: 0.15
Long Term Stab. [e-12]: 0.002
Time Reference : GPS
Synchronization : GPS
Epoch Accuracy [ns]: < 200
Date Installed : 1989-03-01
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
9.02.01 GPS Timing Rcvr Model : TTR 6
Manufacturer : Allen Osborne
Date Installed : 1995-10-01
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
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10. Preprocessing Information
10.01 On-site NP Generation : YES
Data Screening : IRV+POLYNOMIAL
Edit Criterion 1st Chain : 2.5 SIGMA
Edit Criterion 2nd Chain : 2.5 SIGMA
Upload interval : AFTER EACH PASS
Date First Applicable : 1991-06-07
Date Last Applicable : (yyyy-mm-dd)
Additional Information : (multiple lines)
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11. Aircraft Detection
11.01 Detection Type : RADAR
Date Installed : 1993-01-01
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
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12. Meteorological Instrumentation
12.01.01 Pressure Sensor Model : Digiquartz 740-16B
Manufacturer : Paroscientific
Recording Interval : EVERY 1 MINUTE
Accuracy [mbar]: 0.1
Height Diff to SRP [m]: 0
Date Installed : 1990-01-01
Calibration Interval : YEARLY
Date Removed : (yyyy-mm-dd hh:mm UT)
Additional Information : (multiple lines)
12.02.01 Temp Sensor Model : 809
Manufacturer : Lambrecht
Recording Interval : EVERY 1 MINUTE
Accuracy [deg C]: 0.3
Date Installed : 1990-01-01
Calibration Interval : MONTHLY
Date Removed : (yyyy-mm-dd hh:mm UT)
Additional Information : (multiple lines)
12.03.01 Humidity Sensor Model : 809
Manufacturer : Lambrecht
Recording Interval : EVERY 1 MINUTE
Accuracy [% rel h]: 2.5
Date Installed : 1990-01-01
Calibration Interval : MONTHLY
Date Removed : (yyyy-mm-dd hh:mm UT)
Additional Information : A watervapour radiometer
is also available.
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13. Local Ties, Eccentricities, and Collocation Information
13.01 Collocated Permanent Geodetic Systems
GPS : IGS+EUREF
Date Installed : 1995-02-09
Date Removed : (yyyy-mm-dd)
Additional Information : another IGS site
installed 1997-02-06
GLONASS : IGLOS
Date Installed : 1999-02-01
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
DORIS : NO
Date Installed : (yyyy-mm-dd)
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
PRARE : YES
Date Installed : 1997-01-20
Date Removed : 1997-02-03
Additional Information : Other PRARE installations
1996-03-26 to 1996-05-21
1996-12-11 to 1996-12-23
1997-01-02 to 1997-01-12
VLBI : YES
Date Installed : 1983-01-01
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
Gravimeter : SUPERCONDUCTING
Date Installed : 1998-11-01
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
13.02.01 Local Ties from the SRP to Other Monuments or Systems on Site
Monument Name : WTZR
Instrumentation Type : GPS
Instrumentation Status : PERMANENT
DOMES Number : 14201M010
CDP Number : -
Differential Components (ITRS)
dx [m]: 3.828 +- 0.001
dy [m]: 68.200 +- 0.001
dz [m]: -15.517 +- 0.001
Date Measured : 1995-02-13
Determined by :
Date Installed : 1995-02-09
Date Removed : (yyyy-mm-dd)
Additional Information : All systems are tied to a local
network cinsisting of more then
20 survey points. The accuracy
of the differential components
are better then 1 mm. Footpoint
measurements were made and will
be made regulary.
13.02.02 Local Ties from the SRP to Other Monuments or Systems on Site
Monument Name : WTZT
Instrumentation Type : GPS
Instrumentation Status : PERMANENT
DOMES Number : 14201M011
CDP Number : -
Differential Components (ITRS)
dx [m]: 0.757 +- 0.001
dy [m]: 69.820 +- 0.001
dz [m]: -13.360 +- 0.001
Date Measured : 1995-02-13
Determined by :
Date Installed : 1997-02-06
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
13.02.03 Local Ties from the SRP to Other Monuments or Systems on Site
Monument Name : VLBI, Wettzell
Instrumentation Type : VLBI
Instrumentation Status : PERMANENT
DOMES Number : 14201S004
CDP Number : 7224
Differential Components (ITRS)
dx [m]: -36.976 +- 0.001
dy [m]: -50.198 +- 0.001
dz [m]: 45.799 +- 0.001
Date Measured : 1996-01-04
Determined by :
Date Installed : 1983-01-01
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
13.02.04 Local Ties from the SRP to Other Monuments or Systems on Site
Monument Name : WTZZ
Instrumentation Type : GLONASS
Instrumentation Status : PERMANENT
DOMES Number : 14201M014
CDP Number :
Differential Components (ITRS)
dx [m]:
dy [m]:
dz [m]:
Date Measured :
Determined by :
Date Installed : 1997-02-06
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
13.02.04 Local Ties from the SRP to Other Monuments or Systems on Site
Monument Name :
Instrumentation Type : PRARE
Instrumentation Status : MOBILE
DOMES Number :
CDP Number :
Differential Components (ITRS)
dx [m]: -45.786 +- 0.001
dy [m]: -45.910 +- 0.001
dz [m]: 45.350 +- 0.001
Date Measured : 1994-03-22
Determined by :
Date Installed : 1996-03-26
Date Removed : 1997-02-03
Additional Information : (multiple lines)
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14. Local Events Possibly Affecting Computed Position
14.01 Date : (yyyy-mm-dd hh:mm UT)
Event : (EARTHQUAKE/CONSTRUCTION/etc)
Additional Information :
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15. On-Site, Point of Contact Agency Information
Agency : BKG und FESG
Fundamentalstation Wettzell
Sackenrieder Str. 25
D-93444 Koetzting
Germany
Mailing Address : laser@wettzell.ifag.de
Primary Contact
Contact Name : Guenther Herold
Telephone (primary) : 09941/603116
Telephone (secondary) :
Fax : 09941/603222
E-mail : guenther.herold@bkg.bund.de
Secondary Contact
Contact Name : Ulrich Schreiber
Telephone (primary) : 09941/603113
Telephone (secondary) :
Fax : 09941/603222
E-mail : schreiber@wettzell.ifag.de
Additional Information : (multiple lines)
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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)
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17. More Information
URL for More Information : www.wettzell.ifag.de
Hardcopy on File
Site Map : YES
Site Diagram : NO
Horizon Mask : NO
Monument Description : NO
Site Pictures : YES
Additional Information : (multiple lines)
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