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ILRS Home  Stations Site Listing Metsahovi2
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Metsahovi2: 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) : Jukka Piironen
Preparer E-mail : Jukka.Piironen@fgi.fi
Date Prepared : 2004-08-26
Report Type : UPDATE
Format Version : 1.0
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1. Identification of the Ranging System Reference Point (SRP)
Site Name : Metsahovi SLR
IERS DOMES Number : 10503S014
CDP Pad ID : 7806
Subnetwork : EUROLAS
Description : AZ EL INTERSECT
Monument Description : N.A.
Monument Inscription : N.A.
Mark Description : N.A.
Date Installed : 1996-10-15
Date Removed : (yyyy-mm-dd)
Geologic Characteristic : BEDROCK
Additional Information : There is a concrete pillar with a
central steel marker under the
telescope, which has never been surveyed
and has no DOMES number.
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2. Site Location Information
City or Town : Kirkkonummi
State or Province : Uusimaa
Country : Finland
Tectonic Plate : Eurasian
Approximate Position
X coordinate [m]: 2892607.149
Y coordinate [m]: 1311813.079
Z coordinate [m]: 5512598.659
Latitude [deg]: 60.2172 N
Longitude [deg]: 24.3946 E
Elevation [m]: 74.042
Additional Information : ref. ITRF97 1997.0
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3. General System Information
3.01 System Name : Metsahovi SLR
4-Character Code : METL
CDP System Number : 76
CDP Occupation Number : 01
Eccentricity to SRP (if Not Identical With SRP)
North [m]: (m +- m)
East [m]: (m +- m)
Up [m]: (m +- m)
Date Measured : (yyyy-mm-dd)
Date Installed : 1996-10-15
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
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4. Telescope Information
4.01 Receiving Telescope Type : CASSEGRAIN/MANGIN
Aperture [m]: 1.0
Mount : AZ-EL
Xmitting Telescope Type : VIA RECEIVER OPTICS
Aperture [m]: 0.4 (RESERVED)
Tracking Camera Type : CCD+IMAGE AMPLIFIER
Model : EDC 1000
Manufacturer : Electrim
Field of View [deg]: 0.2
Minimum Magnitude [mag]: 12
Transmit/Receive Path : COMMON COUDE
Transmit/Receive Switch : NONE
Max Slew Rate Az [deg/s]: 2
Max Slew Rate El [deg/s]: 2
Max Used Tracking Rate Az : 2
Max Used Tracking Rate El : 2
Telescope Shelter : ROLL-BACK ROOF
Daylight Filter Type : SPECTRAL FILTER
Dayl. Filt. Bandwidth [nm]: 1
Adjustable Attenuation : NO
Transmit Efficiency : 0.6
Receive Efficiency : 0.15
Date Installed : 1996-10-15
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 : 2
Primary Wavelength [nm]: 1064
Primary Maximum Energy [mJ]: 30
Secondary Wavelength [nm]: 532
Secondary Max. Energy [mJ]: 15
Xmit Energy Adjustable : YES
Pulse Width (FWHM) [ps]: <50
Max. Repetition Rate [Hz]: 1
Fullw. Beam Divergence ["]: 10-30
Final Beam Diameter [m]: 0.3
Eyesafe : NO
Eyesafe Standard : ANSI 136.1
Date Installed : 1996-10-15
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 : PMT
Manufacturer : Hamamatsu
Model : R4998
Quantum Efficiency [%]: 8
Nominal Gain : 3E6
Rise Time [ps]: 700
Jitter (Single PE)[ps]: 100
Field of View ["]: 30-120
Date Installed : 1996-10-15
Date Removed : (yyyy-mm-dd)
Signal Processing : CFD
Manufacturer : Ortec
Model : 9307
Date Installed : 1996-10-15
Date Removed : (yyyy-mm-dd)
Amplitude Measurement : NO
Return-rate Controlled: NO
Mode of Operation : (MULTI/SINGLE PHOTON/FEW PHOTON)
Time of Flight Observ. : INTERVAL
Manufacturer : Latvian University
Model : Comtis 911E
Resolution [ps]: 1
Precision [ps]: 25
Date Installed : 1996-10-15
Date Removed : (yyyy-mm-dd)
Additional Information : Amplitude monitored by oscilloscope.
The counter is nominally an event
timer, because it stores the laser epoch,
with a resolution of 400 ns, but time delay
measurement is like a normal time
interval (one channel input is used)
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7. Tracking Capabilities
7.01 Satellites
Very Low Alt (<400 km) : NIGHT
Low Altitude (400-2000) : NIGHT
Lageos : NIGHT
GLONASS : NIGHT
Etalon : NIGHT
GPS : NO
Moon : NO
Avge Pass Switch Time [s]: 90
Average values for Lageos
Single Shot RMS [mm]: 17
# of Obs per NP : 15
Use of Semi-trains : YES
# of Semi-train Tracks : 4
Range Gate Width [ns]: 400-100000
Beam Pointing Accuracy ["]: 30
Angle Encoder Resolution["]: 1
Min. Tracking Elev. [deg]: 15
Operation
Months per Year : 12
Days per Week : 7
Hours per Day : 3-15, nighttime
Staff per Shift : 1
System Shared With : NOTHING
Time Allocated to SLR [%]: 100
Remotely Controllable : NO
Date First Applicable : 1996-10-15
Date Last Applicable : (yyyy-mm-dd)
Additional Information : (multiple lines)
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8. Calibration
8.01 Calibration Type : EPISODIC LASER RANGING
Target Location : EXTERNAL
Target Type : CORNER CUBE
Target Structure : METAL FRAME
Target Distance [m]: 320.697
Date Measured : 2000-05-16
Accuracy (mm) [mm]: 3
Verification : GPS survey
Return-rate Controlled : NO
Mode of Operation : MULTI/SINGLE/FEW PHOTON
Average Cal Interval [min]: 10
Single Shot RMS [mm]: 15
Edit Criterion 1st Chain : ITERATIVE 2.5 SIGMA
Edit Criterion 2nd Chain : N.A.
Application of Cal Data : AVERAGE
Date Installed : 1996-10-15
Date Removed : (yyyy-mm-dd)
Additional Information : laser calibration done infrequently,
electronic calibration of the receiver
channel several tines per session
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9. Time and Frequency Standards
9.01.01 Frequency Standard Type : H-MASER
Model : EFOS
Manufacturer : Oscilloquartz
Short Term Stab. [e-12]: 10
Long Term Stab. [e-12]: 0.5
Time Reference : GPS
Synchronization : GPS
Epoch Accuracy [ns]: 1000
Date Installed : 1996-10-15
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
9.02.01 GPS Timing Rcvr Model : 8810
Manufacturer : Trak Systems
Date Installed : 1994-12-01
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/ORBIT+POLYNOMIAL
Edit Criterion 1st Chain : ITERATIVE 2.5 SIGMA
Edit Criterion 2nd Chain : N.A.
Upload interval : DAILY OR FASTER
Date First Applicable : 1996-10-15
Date Last Applicable : (yyyy-mm-dd)
Additional Information : data screening by adaptive median
polynonmial filtering
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11. Aircraft Detection
11.01 Detection Type : MOUNT OBSERVER
Date Installed : (yyyy-mm-dd)
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
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12. Meteorological Instrumentation
12.01.01 Pressure Sensor Model : PTB200A
Manufacturer : Vaisala
Recording Interval : EVERY 10 MINUTES
Accuracy [mbar]: 0.2
Height Diff to SRP [m]: 0
Date Installed : 1997-05-21
Calibration Interval : to be determined
Date Removed : (yyyy-mm-dd hh:mm UT)
Additional Information : (multiple lines)
12.02.01 Temp Sensor Model : HMP35D
Manufacturer : Vaisala
Recording Interval : EVERY 10 MINUTES
Accuracy [deg C]: 0.2
Date Installed : 1997-05-21
Calibration Interval : to be determined
Date Removed : (yyyy-mm-dd hh:mm UT)
Additional Information : (multiple lines)
12.03.01 Humidity Sensor Model : HMP35D
Manufacturer : Vaisala
Recording Interval : EVERY 10 MINUTES
Accuracy [% rel h]: 3
Date Installed : 1997-05-21
Calibration Interval : to be determined
Date Removed : (yyyy-mm-dd hh:mm UT)
Additional Information : (multiple lines)
12.xx.xx xxxxxxx Sensor Model :
Manufacturer :
Recording Interval [hms]: (hh:mm:ss/PER PULSE/PER PASS/etc)
Accuracy []:
Date Installed : (yyyy-mm-dd hh:mm UT)
Calibration Interval : (YEARLY/MONTHLY/etc)
Date Removed : (yyyy-mm-dd hh:mm UT)
Additional Information : (multiple lines)
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13. Local Ties, Eccentricities, and Collocation Information
13.01 Collocated Permanent Geodetic Systems
GPS : IGS+EUREF
Date Installed : 1992-05-01
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
GLONASS : IGLOS
Date Installed : 1998-10-12
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
DORIS : IDS
Date Installed : 2000-10-26
Date Removed : (yyyy-mm-dd)
Additional Information : METB
PRARE : NO
Date Installed : (yyyy-mm-dd)
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
VLBI : YES
Date Installed : 1989-07-01
Date Removed : 1989-07-10
Additional Information : MV-3, European campaign
Gravimeter : SUPERCONDUCTING
Date Installed : 1994-08-10
Date Removed : (yyyy-mm-dd)
Additional Information : ABSOLUTE FG5 episodically.
13.02 Collocated Permanent Geodetic Systems
GPS : IGS+EUREF
Date Installed : 1992-05-01
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
GLONASS : IGLOS
Date Installed : 1998-10-12
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
DORIS : IDS
Date Installed : 1988-06-21
Date Removed : 2000-10-25
Additional Information : META
PRARE : NO
Date Installed : (yyyy-mm-dd)
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
VLBI : YES
Date Installed : 1989-07-01
Date Removed : 1989-07-10
Additional Information : MV-3, European campaign
Gravimeter : SUPERCONDUCTING
Date Installed : 1994-08-10
Date Removed : (yyyy-mm-dd)
Additional Information : ABSOLUTE FG5 episodically.
13.02.01 Local Ties from the SRP to Other Monuments or Systems on Site
Monument Name : GPS METS (IGS/EUREF)
Instrumentation Type : GPS
Instrumentation Status : PERMANENT
DOMES Number : 10503S011
CDP Number : N.A.
Differential Components (ITRS)
dx [m]: -36.216 +- 0.003
dy [m]: 30.258 +- 0.003
dz [m]: 35.388 +- 0.003
Date Measured : 1996-10-15
Determined by : survey, GPS
Date Installed : 1996-10-15
Date Removed : (yyyy-mm-dd)
Additional Information : (multiple lines)
13.03.01 Eccentricities Between Other Monuments on Site
From: Monument Name : GPS METS
DOMES Number : 10503S011
CDP Number : N.A.
To: Monument Name : VLBI METS
DOMES Number : 10503M002
CDP Number : 7601
Differential Components (ITRS)
dx [m]: -1918.178 +- 0.005
dy [m]: -1548.001 +- 0.005
dz [m]: 1324.664 +- 0.005
Date Measured : 1993-12-29
Determined by : GPS
Additional Information : (multiple lines)
13.03.02 Eccentricities Between Other Monuments on Site
From: Monument Name : GPS METS
DOMES Number : 10503S011
CDP Number : N.A.
To: Monument Name : DORIS META
DOMES Number : 10503S013
CDP Number : N.A.
Differential Components (ITRS)
dx [m]: -1929.787 +- 0.005
dy [m]: -1532.781 +- 0.005
dz [m]: 1330.896 +- 0.005
Date Measured : 1993-12-29
Determined by : GPS + survey
Additional Information : (multiple lines)
13.03.03 Eccentricities Between Other Monuments on Site
From: Monument Name : GPS METS
DOMES Number : 10503S011
CDP Number : N.A.
To: Monument Name : SLR IAR
DOMES Number : 10503S001
CDP Number : 7805
Differential Components (ITRS)
dx [m]: 24.471 +- 0.005
dy [m]: -35.528 +- 0.005
dz [m]: -23.274 +- 0.005
Date Measured : 1994-10-15
Determined by : GPS
Additional Information : old laser
13.03.04 Eccentricities Between Other Monuments on Site
From: Monument Name : GPS METS
DOMES Number : 10503S011
CDP Number : N.A.
To: Monument Name : GPS/GLONASS METZ
DOMES Number : 10503M005
CDP Number : N.A.
Differential Components (ITRS)
dx [m]: -0.951 +- 0.001
dy [m]: 0.205 +- 0.001
dz [m]: 0.398 +- 0.001
Date Measured : 1998-10-12
Determined by : GPS
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 : (multiple lines)
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15. On-Site, Point of Contact Agency Information
Agency : Finnish Geodetic Institute
Mailing Address : Geodeetinrinne 2,
FIN-02430 Masala, Finland
Primary Contact
Contact Name : Jukka Piironen
Telephone (primary) : +358 9 2564994
Telephone (secondary) : +358 9 466961
Fax : +358 9 2564995
E-mail : Jukka.Piironen@fgi.fi
Secondary Contact
Contact Name :
Telephone (primary) :
Telephone (secondary) :
Fax :
E-mail :
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 : N.A.
Hardcopy on File
Site Map : NO
Site Diagram : NO
Horizon Mask : NO
Monument Description : NO
Site Pictures : NO
Additional Information : (multiple lines)
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