Quick Links
- Network Map
- List of Stations
- Monthly Report Card
- Quarterly Report Card
- Network Status Page
- Potsdam CPF time bias service
- Procedure for estimating laser beam divergence
- Recent Station Upgrades
- Network station application form
- Revised ILRS station screening process at ILRS Operations Centers (NASA and EDC)
Wettzell (TIGO): 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. Form
Section: 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) : Stefan Riepl
Preparer E-mail : riepl@wettzell.ifag.de
Date Prepared : 2002-05-09
Report Type : UPDATE
Site Log Format Version : 2.0
Site Log Revision :
Back to top
1. Identification of the Ranging System Reference Point (SRP)
Site Name : Wettzell
IERS DOMES Number : 14201M200
CDP Pad ID : 7594
Subnetwork : EUROLAS
Description : MONUMENT
Monument Description : PLATE
Monument Inscription : NONE
Mark Description : NAIL
Date Installed : 1997-01-01
Date Removed :
Geologic Characteristic : BEDROCK/CLAY
Additional Information : System will be shipped to Concepcio/Chile
: by the end of 2001
Back to top
2. Site Location Information
City or Town : Koetzting
State or Province : Bavaria
Country : Germany
Tectonic Plate : Eurasian
Local Time (UTC +/- hours) :
Approximate Position
X coordinate [m]: 4075595.9
Y coordinate [m]: 931733.1
Z coordinate [m]: 4801568.4
Latitude [deg]: 49.1443 N
Longitude [deg]: 12.8773 E
Elevation [m]: 658.417
Survey Method :
Date Measured :
Additional Information :
Back to top
3. General System Information
3.01 System Name : TIGO
4-Character Code : WETT
CDP System Number : 79
CDP Occupation Number : 01
Eccentricity to SRP (if Not Identical With SRP)
North [m]: -0.100 +- 0.001
East [m]: -0.055 +- 0.001
Up [m]: 1.467 +- 0.001
Date Measured : 1998-01-01
Date Installed : 1998-01-01
Date Removed :
Additional Information : system eccentricities in original
: site log wett_20001004.log were wrong.
: (i.e. from the optical axes to the
: marker versus the marker to the
: optical axes)
Back to top
4. Telescope Information
4.01 Receiving Telescope Type : folded galilean
Aperture [m]: 0.5
Mount : AZ-EL
Date Installed :
Date Removed :
Xmitting Telescope Type : folded galilean
Aperture [m]: 0.1
Date Installed :
Date Removed :
Tracking Camera Type : CCD/TV
Model : PROXICAM
Manufacturer : PROXICAM
Field of View [deg]: 0.016
Minimum Magnitude [mag]: 8
Date Installed :
Date Removed :
Transmit/Receive Path : COMMON COUDE
Transmit/Receive Switch : N.A.
Max Slew Rate Az [deg/s]: 10
Max Slew Rate El [deg/s]: 10
Max Used Tracking Rate Az : 10
Max Used Tracking Rate El : 10
Telescope Shelter : DOME
Daylight Filter Type : AIR SPACED ETALON
Dayl. Filt. Bandwidth [nm]: 0.1
Adjustable Attenuation : TRANSMIT
Adjustable Field of View :
Transmit Efficiency : 0.95
Receive Efficiency : 0.9
Date Installed : 1998-01-01
Date Removed :
Additional Information : Transmit/Receive Switch: `SHARED APERTURE`
Back to top
5. Laser System Information
5.01 Laser Type : TI:SAP
Model :
Manufacturer :
Number of Amplifiers : 3
Primary Wavelength [nm]: 847
Primary Maximum Energy [mJ]: 60
Secondary Wavelength [nm]: 423.5
Secondary Max. Energy [mJ]: 30
Xmit Energy Adjustable : YES
Additional Information :
Pulse Width (FWHM) [ps]: 80
Max. Repetition Rate [Hz]: 10
Fullw. Beam Divergence ["]: 2 - 60
Theoretical Beam Div :
Measured Beam Div :
Method Used :
Additional Information :
Final Beam Diameter [m]: 0.1
Eyesafe : NO
Eyesafe Standard : DIN VDE 0837 (IEC 825)
Polarization on Exit :
Laser Fire Control :
Laser Energy Monitor :
Start Diode Type :
Manufactorer :
Model :
Quantum Efficiency [%]:
Rise/Fall Time [ps]:
Date Installed :
Date Removed :
Signal Processing :
Manufacturer :
Model :
Date Installed :
Date Removed :
Additional Information :
Date Installed : 1998-01-01
Date Removed :
Additional Information : 1 regenerative/ 2 linear multipath
: amplifiers
: Start Detector Specifications
: Wavelength : 847 nm
: Type : APD linear mode
: Manufacturer : K.H.Haufe
: Rise Time : < 100 ps
: Jitter : 20 ps
: Expose mode : focused
: Signal Processing : CFD
: Date Installed : 2001-01-31
:
: Pulse Width: 80/56
Back to top
6. Receiver System
6.01.01 Primary Chain
Wavelength [nm]: 423.5
Detector Type : CSPAD
Manufacturer : PESO Consulting
Model : 1
Quantum Efficiency [%]: 10
Nominal Gain : 1e9
Rise Time [ps]: 100
Jitter (Single PE)[ps]: 80
Field of View Diam ["]: 60
Date Installed : 1998-01-01
Date Removed :
Amplifier Type :
Manufacturer :
Model :
Gain :
Bandwidth :
Date Installed :
Date Removed :
Additional Information:
Signal Processing : Time Walk Compensated
Manufacturer : Graz
Model : V01
Date Installed : 1998-01-01
Date Removed :
Amplitude Measurement : YES
Return-Rate Controlled: YES
Mode of Operation : SINGLE/FEW PHOTON
Additional Information:
Time of Flight Observ. : EVENT
Manufacturer : PESO Consulting
Model : PET 4
Resolution [ps]: 1.22
Precision [ps]: 7
Date Installed : 2000-07-01
Date Removed :
Additional Information : Rise Time: < 100
6.01.02 Primary Chain
Wavelength [nm]: 423.5
Detector Type : CSPAD
Manufacturer : PESO Consulting
Model : 1
Quantum Efficiency [%]: 10
Nominal Gain : 1e9
Rise Time [ps]: 100
Jitter (Single PE)[ps]: 60
Field of View Diam ["]: 10
Date Installed : 1998-01-01
Date Removed :
Amplifier Type :
Manufacturer :
Model :
Gain :
Bandwidth :
Date Installed :
Date Removed :
Additional Information:
Signal Processing : Time Walk Compensated
Manufacturer : Graz
Model : V01
Date Installed : 1998-01-01
Date Removed :
Amplitude Measurement : YES
Return-Rate Controlled: YES
Mode of Operation : SINGLE/FEW PHOTON
Additional Information:
Time of Flight Observ. : INTERVAL
Manufacturer : Stanford
Model : 620
Resolution [ps]: 4
Precision [ps]: 30
Date Installed : 1998-01-01
Date Removed : 2000-07-01
Additional Information : Rise Time < 100
6.01.03 Primary Chain
Wavelength [nm]: 423.5
Detector Type : PMT
Manufacturer : Hamamatsu
Model : H7421-50
Quantum Efficiency [%]: 15
Nominal Gain : 1e9
Rise Time [ps]: 1000
Jitter (Single PE)[ps]: 60
Field of View Diam ["]: 60
Date Installed : 2001-01-31
Date Removed :
Amplifier Type :
Manufacturer :
Model :
Gain :
Bandwidth :
Date Installed :
Date Removed :
Additional Information:
Signal Processing : CFD
Manufacturer : ORTEC
Model : QUAD CFD
Date Installed : 2001-01-31
Date Removed :
Amplitude Measurement : NO
Return-Rate Controlled: YES
Mode of Operation : SINGLE PHOTON
Additional Information:
Time of Flight Observ. : EVENT
Manufacturer : PESO Consulting
Model : PET 4
Resolution [ps]: 1.22
Precision [ps]: 3
Date Installed : 2000-07-01
Date Removed :
Additional Information : Rise Time: < 1000
: Precision: <3
6.01.04 Primary Chain
Wavelength [nm]: 423.5
Detector Type : APD
Manufacturer : Lutz Beyer
Model : SP114
Quantum Efficiency [%]: 50
Nominal Gain : 1e9
Rise Time [ps]: 100
Jitter (Single PE)[ps]: 60
Field of View Diam ["]: 60
Date Installed : 2001-01-31
Date Removed :
Amplifier Type :
Manufacturer :
Model :
Gain :
Bandwidth :
Date Installed :
Date Removed :
Additional Information:
Signal Processing : None
Manufacturer :
Model :
Date Installed :
Date Removed :
Amplitude Measurement : NO
Return-Rate Controlled: YES
Mode of Operation : SINGLE PHOTON
Additional Information:
Time of Flight Observ. : EVENT
Manufacturer : PESO Consulting
Model : PET 4
Resolution [ps]: 1.22
Precision [ps]: 3
Date Installed : 2000-07-01
Date Removed :
Additional Information : Rise Time: < 100
: Precision: <3
6.02.01 Secondary Chain
Wavelength [nm]: 847.0
Detector Type : CSPAD
Manufacturer : PESO Consulting
Model : 1
Quantum Efficiency [%]: 10
Nominal Gain : 1e9
Rise Time [ps]: 100
Jitter (Single PE)[ps]: 60
Field of View Diam ["]: 60
Date Installed : 2000-07-01
Date Removed :
Amplifier Type :
Manufacturer :
Model :
Gain :
Bandwidth :
Date Installed :
Date Removed :
Additional Information:
Signal Processing : Time Walk Compensated
Manufacturer : Graz
Model : V01
Date Installed : 2000-07-01
Date Removed :
Amplitude Measurement : YES
Return-Rate Controlled: YES
Mode of Operation : SINGLE/FEW PHOTON
Additional Information:
Time of Flight Observ. : EVENT
Manufacturer : PESO Consulting
Model : PET 4
Resolution [ps]: 1.22
Precision [ps]: 3
Date Installed : 2000-07-01
Date Removed :
Additional Information : Precision: <3
6.03.01 Tertiary Chain
Wavelength [nm]:
Detector Type :
Manufacturer :
Model :
Quantum Efficiency [%]:
Nominal Gain :
Rise Time [ps]:
Jitter (Single PE)[ps]:
Field of View Diam ["]:
Date Installed :
Date Removed :
Amplifier Type :
Manufacturer :
Model :
Gain :
Bandwidth :
Date Installed :
Date Removed :
Additional Information:
Signal Processing :
Manufacturer :
Model :
Date Installed :
Date Removed :
Amplitude Measurement :
Return-Rate Controlled:
Mode of Operation :
Additional Information:
Time of Flight Observ. :
Manufacturer :
Model :
Resolution [ps]:
Precision [ps]:
Date Installed :
Date Removed :
Additional Information :
Back to top
7. Tracking Capabilities
7.01 Satellites
Very Low Alt (<400 km) : YES
Low Altitude (400-2000) : YES
LAGEOS/LARES : YES
GLONASS : YES
Etalon : YES
GNSS : YES
Geosynchronous :
Moon : NO
Ave. Pass Switch Time [s]: 60
Average values for LAGEOS
Single Shot RMS [mm]: 24
# of Obs per NP : 20
Use of Semi-trains : NO
# of Semi-train Tracks : N.A.
Range Gate Width [ns]: 200
Beam Pointing Accuracy ["]: 5
Angle Encoder Resolution["]: 0.5
Min. Tracking Elev. [deg]: 20
Laser Polarization @emitter:
Operation
Months per Year : 0
Days per Week : 0
Hours per Day : 0
Staff per Shift : N.A.
System Shared With : NOTHING
Time Allocated to SLR [%]: 100
Remotely Controllable : NO
Tracking Restrictions
Go/No-go flag :
Satellite Verification :
Date Verified :
Maximum elevation :
Satellite Verification :
Date Verified :
Pass segments :
Satellite Verification :
Date Verified :
Schedule segments :
Satellite Verification :
Date Verified :
Maximum laser power limit:
Satellite Verification :
Date Verified :
Date First Applicable :
Date Last Applicable :
Additional Information :
Back to top
8. Calibration
8.01 Calibration Type : PRE+POST
Target Location : INTERNAL
Target Type : FLAT SURFACE
Target Structure : FLIP MIRROR INSIDE TELESCOPE
Number of Targets :
Target Distance(s) [m]: -2.351
Date Measured : 1998-01-01
Accuracy [mm]: 1
Verification :
Return-Rate Controlled : YES
Eye-Safe Method :
Additional Information :
Mode of Operation : SINGLE PHOTON
Calibration performed : 45
Single Shot RMS [mm]: 15
Edit Criterion 1st Chain : ITERATIVE 2.5 SIGMA
Edit Criterion 2nd Chain : ITERATIVE 2.5 SIGMA
Application of Cal Data : LINEAR FIT
Date Installed : 1998-01-01
Date Removed :
Additional Information :
Back to top
9. Time and Frequency Standards
9.01.01 Frequency Standard Type : Cesium
Model : 5071A
Manufacturer : HP
Short Term Stab. [e-12]: 10
Long Term Stab. [e-12]: 0.05
Time Reference : GPS
Synchronization : GPS
Epoch Accuracy [ns]: 10
Date Installed : 1997-01-01
Date Removed :
Additional Information :
9.02.01 GNSS Timing Rcvr Model : 9390
Manufacturer : Datum
Date Installed : 1997-01-01
Date Removed :
Additional Information :
9.03.01 One-way System Calibration
Date performed :
Direction Calibrated :
Additional Information :
Back to top
10. Preprocessing Information
10.01 On-site NP Generation : YES
Data Screening : AUTOMATIC (TIMEBIAS-MODEL) + SOLVE
Return-Rate Rejection :
Edit Criterion 1st Chain : 2.5 SIGMA
Edit Criterion 2nd Chain : 2.5 SIGMA
Upload interval : AFTER EACH PASS
Date First Applicable : 1997-01-01 HH:MM UT
Date Last Applicable :
Additional Information :
Back to top
11. Aircraft Detection
11.01 Detection Type : RADAR
Manufacturer/Provider :
Automatic Laser Shutoff :
Alarms Recorded :
Hazard Distance [km]:
Date Installed : 1997-01-01
Date Removed :
Additional Information :
Back to top
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
Distance from SRP [m]:
Date Installed : 1997-01-01 HH:MM UT
Calibration Interval : YEARLY
Date Removed :
Additional Information :
12.02.01 Temp Sensor Model : 809
Manufacturer : Lambrecht
Recording Interval : EVERY 1 MINUTE
Accuracy [deg C]: 0.3
Date Installed : 1997-01-01 HH:MM UT
Calibration Interval : MONTHLY
Date Removed :
Additional Information :
12.03.01 Humidity Sensor Model : 809
Manufacturer : Lambrecht
Recording Interval : EVERY 1 MINUTE
Accuracy [% rel h]: 2.5
Date Installed : 1997-01-01 HH:MM UT
Calibration Interval : MONTHLY
Date Removed :
Additional Information :
Back to top
13. Local Ties, Eccentricities, and Collocation Information
13.01 Collocated Permanent Geodetic Systems
13.01.01.01 GNSS : IGS+EUREF
Date Installed : 1995-02-09
Date Removed :
Additional Info : another IGS site
: installed 1997-02-06
13.01.01.02 GNSS : IGLOS
Date Installed : 1999-02-01
Date Removed :
Additional Info :
13.01.02.01 DORIS : NO
Date Installed :
Date Removed :
Additional Info :
13.01.03.01 PRARE : YES
Date Installed : 1997-01-20
Date Removed : 1997-02-03
Additional Info : Other PRARE installations
: 1996-03-26 to 1996-05-21
: 1996-12-11 to 1996-12-23
: 1997-01-02 to 1997-01-12
13.01.04.01 VLBI : YES
Date Installed : 1983-01-01
Date Removed :
Additional Info :
13.01.05.01 Gravimeter : SUPERCONDUCTING
Date Installed : 1998-11-01
Date Removed :
Additional Info :
13.01.06.01 Other SLR :
Date Installed :
Date Removed :
Additional Info :
13.02.01.01 Local Ties from the SRP to Other Monuments or Systems on Site
Monument Name : VLBI, TIGO
Instrumentation Type : VLBI
Instrumentation Status : MOBILE
DOMES Number : 14201S100
CDP Number : 7593
Differential Components (ITRS)
dx [m]: -23.210 +- 0.015
dy [m]: 22.032 +- 0.005
dz [m]: 15.951 +- 0.018
Date Measured : 1997-01-01
Determined by : ITRF97
Date Installed : 1997-01-01
Date Removed :
Additional Information :
13.03.01.01 Eccentricities Between Other Monuments on Site
From: Monument Name :
DOMES Number :
CDP Number :
To: Monument Name :
DOMES Number :
CDP Number :
Differential Components (ITRS)
dx [m]:
dy [m]:
dz [m]:
Date Measured :
Determined by :
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 : Bundesamt fuer Kartographie und Geodaesie
Mailing Address : Sackenriederstr. 25,
: D-93444 Koetzting, Germany
Website :
Primary Contact
Contact Name : Stefan Riepl
Telephone (primary) : +49 9941 603205
Telephone (secondary) : +49 9941 603333
Fax : +49 9941 603222
E-mail : riepl@wettzell.ifag.de
Secondary Contact
Contact Name : Armin Boeer
Telephone (primary) : +49 9941 603111
Telephone (secondary) : +49 9941 603333
Fax : +49 9941 603222
E-mail : boer@wettzell.ifag.de
Tertiary Contact
Contact Name :
Telephone (primary) :
Telephone (secondary) :
Fax :
E-mail :
Additional Information :
Back to top
16. Responsible Agency (if different from 15.)
Agency :
Mailing Address :
Primary Contact
Contact Name :
Telephone (primary) :
Telephone (secondary) :
Fax :
E-mail :
Secondary Contact
Contact Name :
Telephone (primary) :
Telephone (secondary) :
Fax :
E-mail :
Additional Information :
Back to top
17. More Information
URL for More Information : http://www.wettzell.ifag.de
Hardcopy on File
Site Map : NO
Site Diagram : NO
Horizon Mask : NO
Monument Description : YES
Site Pictures : YES
Additional Information :
Back to top
- NASA Official: Frank Lemoine
- Web Curator: Lori J. Tyahla
- Contact Us
- Last modified date: Nov 25, 2024
- Privacy Policy & Important Notices
