SLR Station Borowiec/Poland

Last update: January 12, 1995

Location

Borowiec, Poland (20 km South-East of Poznan, flat territory, surrounded by fields on three sides and forest in the North)

Agency

Space Research Center of Polish Academy of Sciences

Address

Dr. S. Schillak
Astrogeodynamical Observatory
Borowiec, ul. Drapalka 4
62-035 Kornik
Poland

Communication

Telephone         : 61-170187
TELEX/TWX         :                    
Telefax           : 61-170219
Electronic mail   : LASER@CBK.POZNAN.PL or SCH@CBK.POZNAN.PL
GE/MARK III       :
SPAN              :
EARN/BITnet       :
Other networks    :

Status

Operational since: May 1988

Schedule

Operation hours per day     : 8
Operation days per week     : standard 5, during intensive campaigns 7
Satellite tracking capacity : LAGEOS-1 and -2, AJISAI, STARLETTE, TOPEX, 
                              ERS-1, STELLA, METEOR-3
Comments                    :

System:

BOROWC

Number

Station number           : 7811
Instrument number        : 38
Instrument name          :
Actual occupation number : 02
Start date               : 13-May-88

Tracking

Single shot precision    : 4 cm
Laser system             : Neodym-Yag Laser (new CONTINUUM laser from Sep.91)
Wavelength               : 532.0 nm
Pulse width              : 100 ps
Pulse rate               : 10 pps
Beam divergence          : 80 arcsec
Minimal elevation        : 20 degree      
Tracking capacities      : 
Daylight                 : no
High flying satellites   : yes (LAGEOS, efficiency 5%)
Low flying satellites    : yes (STARLETTE, ERS-1)
Moon                     : no
ERS-1                    : yes

Site occupations
All occupations at the site including

Monument number          : no other site occupation
Occupying System         :
Starting date            :
Ending date              :

Comments

Timing

Primary time standard       : Oscilloquarz EUDEC Cesium frequecy standard
Time standard calibration   : 2 GPS time receivers
Estimated time tag accuracy : 50 ns

QL data  1 microsec
FR data  1 microsec

Time reference:

QL data  BIPM
FR data  BIPM

Station Computer

                                                real time           Prediction and
                                                                    data analysis

Computer type                               : MERA-400           IBM PC
Micro processor                             : minicomputer       80386
Operating System                            : SOM-3M             PC DOS
Capability of normalpoint generation at site:                    yes
Discette format used                        :                    PC compatible
Tape drive available                        : no                 no

Prediction used

Prediction programme for               LAGEOS       IRVI4, AUSTIN, UTX
                                       STARLETTE    IRVI4, AUSTIN, UTX
                                       Others       IRVI4, AUSTIN, UTX

Input files and medium of reception    LAGEOS       IRV's, email
                                       STARLETTE    IRV's, email
                                       Others       IRV's, email

State vectors for ERS-1                yes
                                       rate
                                       coordinate system
                                       time reference

Required prediction accuracy           daylight tracking   -
                                       nighttime tracking  500 m

Calibration

Pre- and post-pass calibration to external ground target at distance 1295.42 m.
Flags regularily given in Merit II format

System configuration             flag              2
                                 start date        30-September-91
                                 end date          -

Calibration method                                 0

receiver correction                                165 ns

Data delivery

Quick-look data                  medium            email
                                 agency            EDC, DGFI/I, Munich

Full rate data                   medium            discettes
                                 agency            EDC, DGFI/I, Munich

Geodetic reference

Monument number                : 12205M001 (EUREF 216)
type of monument               : concrete pillar
Monument inscription           : The piers are of brick, 1m square and 2.0m 
                                 high. They stand on a heavy block of concrete
                                 of dimensions 2x2x1.4 m, whose lower surface
                                 lies deep in the ground.
Coordinates on local datum     :
Elevation above mean sea level : 80.0 m
Elevation above ellipsoid      : 116.66 m
Survey source                  : GPS
Date of survey                 : permanently
Datum/Ellipsoid                : WGS84
Eccentricity to                  North East UP   geocentric coordinates    
Laser reference point          :                     X(m)     Y(m)    Z(m)
                                                   64.158   39.330  -63.717

Geological Information

Tectonic plate                 : Eurasian
Geological province            : Paleozoic platform
Local geology                  :


Comments to special geological characteristics:

Future Plans

• Installation of BOROWIEC-2 SLR system in Tunesia (1996?)
• Realization of PC-486 computer controlled mount tracking system
• real-time software
• Daylight passes
• New detector (PMT Hamamatsu)
• New time interval counter (30 ps)