BBYS00SVK Site Information Form (site log)
International GNSS Service
See Instructions at:
https://files.igs.org/pub/station/general/sitelog_instr.txt
0. Form
Prepared by (full name) : SKPOS Department (skpos@skgeodesy.sk)
Date Prepared : 2023-09-06
Report Type : UPDATE
If Update:
Previous Site Log : bbys00svk_20230509.log
Modified/Added Sections : 3.23, 3.24
1. Site Identification of the GNSS Monument
Site Name : Banska Bystrica
Four Character ID : BBYS
Monument Inscription :
IERS DOMES Number : 11514M001
CDP Number : NONE
Monument Description : PILLAR
Height of the Monument : 3 m
Monument Foundation : CONCRETE BLOCK WITH THE STEEL TUBE
Foundation Depth : 10 m
Marker Description : BRASS SCREEW MODULE
Date Installed : 2001-04-01T06:00Z
Geologic Characteristic : BEDROCK
Bedrock Type : IGNEOUS
Bedrock Condition : JOINTED
Fracture Spacing : over 200 cm
Fault zones nearby : NO
Distance/activity : (multiple lines)
Additional Information : (multiple lines)
2. Site Location Information
City or Town : Banska Bystrica
State or Province : Banska Bystrica province
Country : Slovakia
Tectonic Plate : EURASIAN
Approximate Position (ITRF)
X coordinate (m) : 3980358.800
Y coordinate (m) : 1382292.100
Z coordinate (m) : 4772772.000
Latitude (N is +) : +484506.49
Longitude (E is +) : +0190903.61
Elevation (m,ellips.) : 487.4
Additional Information : (multiple lines)
3. GNSS Receiver Information
3.1 Receiver Type : TRIMBLE 4000SSI
Satellite System : GPS
Serial Number : 3949A27243
Firmware Version : 7.29/3.07
Elevation Cutoff Setting : 10 deg
Date Installed : 2001-04-01T06:00Z
Date Removed : 2005-01-11T10:00Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : Temperature variations about 6 deg C
3.2 Receiver Type : TRIMBLE 5700
Satellite System : GPS
Serial Number : 0220349584
Firmware Version : 2.21/1.22
Elevation Cutoff Setting : 0 deg
Date Installed : 2005-01-11T14:00Z
Date Removed : 2009-09-12T14:21Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : Temperature variations about 6 deg C
3.3 Receiver Type : TRIMBLE 5700
Satellite System : GPS
Serial Number : 0220349584
Firmware Version : 2.32/1.22
Elevation Cutoff Setting : 0 deg
Date Installed : 2009-09-13T12:00Z
Date Removed : 2009-11-03T07:56Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : Temperature variations about 6 deg C
3.4 Receiver Type : TRIMBLE 5700
Satellite System : GPS
Serial Number : 0220348502
Firmware Version : 2.32/1.22
Elevation Cutoff Setting : 0 deg
Date Installed : 2009-11-03T08:08Z
Date Removed : 2012-09-14T09:45Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : Temperature variations about 6 deg C
3.5 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+QZSS
Serial Number : 5226K50358
Firmware Version : 4.60/4.27
Elevation Cutoff Setting : 0 deg
Date Installed : 2012-09-14T10:00Z
Date Removed : 2013-03-04T11:05Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : Temperature variations about 6 deg C
3.6 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+QZSS
Serial Number : 5226K50358
Firmware Version : 4.70/4.29
Elevation Cutoff Setting : 0 deg
Date Installed : 2013-03-04T11:05Z
Date Removed : 2013-06-12T08:05Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : Temperature variations about 6 deg C
3.7 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+QZSS
Serial Number : 5212K83327
Firmware Version : 4.70/4.29
Elevation Cutoff Setting : 0 deg
Date Installed : 2013-06-12T08:15Z
Date Removed : 2013-06-21T06:00Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : Temperature variations about 6 deg C
3.8 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+QZSS
Serial Number : 5226K50358
Firmware Version : 4.80/4.71
Elevation Cutoff Setting : 0 deg
Date Installed : 2013-06-21T06:00Z
Date Removed : 2013-09-20T12:00Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : Temperature variations about 6 deg C
3.9 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+BDS+QZSS+SBAS
Serial Number : 5226K50358
Firmware Version : 4.81/4.71
Elevation Cutoff Setting : 0 deg
Date Installed : 2013-11-11T07:00Z
Date Removed : 2014-05-30T09:13Z
Temperature Stabiliz. : 20.0 +/- (deg C)
Additional Information : Temperature variations about 6 deg C
3.10 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS+SBAS
Serial Number : 5226K50358
Firmware Version : 4.85/4.71
Elevation Cutoff Setting : 0 deg
Date Installed : 2014-05-30T09:17Z
Date Removed : 2017-09-08T08:06Z
Temperature Stabiliz. : 20.0 +/- (deg C)
Additional Information : Temperature variations about 6 deg C
3.11 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS+SBAS
Serial Number : 5226K50358
Firmware Version : 5.30
Elevation Cutoff Setting : 0 deg
Date Installed : 2017-09-08T08:18Z
Date Removed : 2018-06-21T07:11Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.12 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS
Serial Number : 5226K50358
Firmware Version : 5.33
Elevation Cutoff Setting : 0 deg
Date Installed : 2018-06-21T07:16Z
Date Removed : 2018-10-29T08:44Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.13 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS
Serial Number : 5226K50358
Firmware Version : 5.37
Elevation Cutoff Setting : 0 deg
Date Installed : 2018-10-29T08:50Z
Date Removed : 2020-01-08T06:17Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.14 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS
Serial Number : 5226K50358
Firmware Version : 5.43
Elevation Cutoff Setting : 0 deg
Date Installed : 2020-01-08T06:23Z
Date Removed : 2020-01-17T10:00Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.15 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS
Serial Number : 5226K50358
Firmware Version : 5.44
Elevation Cutoff Setting : 0 deg
Date Installed : 2020-01-17T10:14Z
Date Removed : 2020-05-04T06:26Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.16 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS
Serial Number : 5226K50358
Firmware Version : 5.45
Elevation Cutoff Setting : 0 deg
Date Installed : 2020-05-04T06:32Z
Date Removed : 2020-09-24T08:10Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.17 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS
Serial Number : 5226K50358
Firmware Version : 5.48
Elevation Cutoff Setting : 0 deg
Date Installed : 2020-09-24T08:15Z
Date Removed : 2021-04-26T08:18Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.18 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS
Serial Number : 5226K50358
Firmware Version : 5.50
Elevation Cutoff Setting : 0 deg
Date Installed : 2021-04-26T08:24Z
Date Removed : 2021-11-03T09:54Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.19 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS
Serial Number : 5226K50358
Firmware Version : 5.52
Elevation Cutoff Setting : 0 deg
Date Installed : 2021-11-03T09:59Z
Date Removed : 2022-05-16T06:52Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.20 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS
Serial Number : 5226K50358
Firmware Version : 5.54
Elevation Cutoff Setting : 0 deg
Date Installed : 2022-05-16T06:58Z
Date Removed : 2022-09-22T09:06Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : firmware upgrade
3.21 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS
Serial Number : 5226K50358
Firmware Version : 5.55
Elevation Cutoff Setting : 0 deg
Date Installed : 2022-09-22T09:12Z
Date Removed : 2022-12-13T08:54Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : firmware upgrade
3.22 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS
Serial Number : 5226K50358
Firmware Version : 5.56
Elevation Cutoff Setting : 0 deg
Date Installed : 2022-12-13T08:59Z
Date Removed : 2023-05-09T07:33Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : firmware upgrade
3.23 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS
Serial Number : 5226K50358
Firmware Version : 5.60
Elevation Cutoff Setting : 0 deg
Date Installed : 2023-05-09T07:38Z
Date Removed : 2023-09-06T08:53Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : firmware upgrade
3.24 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS+QZSS+SBAS
Serial Number : 5226K50358
Firmware Version : 5.61
Elevation Cutoff Setting : 0 deg
Date Installed : 2023-09-06T08:58Z
Date Removed : CCYY-MM-DDThh:mmZ
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : firmware upgrade
3.x Receiver Type : (A20, from rcvr_ant.tab; see instructions)
Satellite System : (GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS)
Serial Number : (A20, but note the first A5 is used in SINEX)
Firmware Version : (A11)
Elevation Cutoff Setting : (deg)
Date Installed : (CCYY-MM-DDThh:mmZ)
Date Removed : (CCYY-MM-DDThh:mmZ)
Temperature Stabiliz. : (none or tolerance in degrees C)
Additional Information : (multiple lines)
4. GNSS Antenna Information
4.1 Antenna Type : TRM33429.00+GP NONE
Serial Number : 0220193841
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.1260
Marker->ARP North Ecc(m) : 0.0000
Marker->ARP East Ecc(m) : 0.0000
Alignment from True N : 0 deg
Antenna Radome Type : NONE
Radome Serial Number :
Antenna Cable Type : Trimble
Antenna Cable Length : 10 m
Date Installed : 2001-04-01T06:00Z
Date Removed : 2005-01-11T10:00Z
Additional Information : (multiple lines)
4.2 Antenna Type : TRM41249.00 NONE
Serial Number : 12626162
Antenna Reference Point : BAM
Marker->ARP Up Ecc. (m) : 0.1180
Marker->ARP North Ecc(m) : 0.0000
Marker->ARP East Ecc(m) : 0.0000
Alignment from True N : 0 deg
Antenna Radome Type : NONE
Radome Serial Number :
Antenna Cable Type : Trimble
Antenna Cable Length : 10 m
Date Installed : 2005-01-11T14:00Z
Date Removed : 2012-09-14T09:45Z
Additional Information : (multiple lines)
4.3 Antenna Type : TRM59800.00 NONE
Serial Number : 5222354502
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.1180
Marker->ARP North Ecc(m) : 0.0000
Marker->ARP East Ecc(m) : 0.0000
Alignment from True N : 0 deg
Antenna Radome Type : NONE
Radome Serial Number :
Antenna Cable Type : Trimble
Antenna Cable Length : 10 m
Date Installed : 2012-09-14T10:00Z
Date Removed : 2015-05-20T06:00Z
Additional Information : (multiple lines)
4.4 Antenna Type : TRM59800.00 NONE
Serial Number : 5222354502
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.1180
Marker->ARP North Ecc(m) : 0.0000
Marker->ARP East Ecc(m) : 0.0000
Alignment from True N : 180 deg
Antenna Radome Type : NONE
Radome Serial Number :
Antenna Cable Type : Trimble
Antenna Cable Length : 10 m
Date Installed : 2015-07-31T07:17Z
Date Removed : 2018-04-24T09:15Z
Additional Information : Absolute antenna calibration by Geo++ GmbH
: Calibration date: 2015-07-02
4.5 Antenna Type : TRM115000.00 NONE
Serial Number : 6123121898
Antenna Reference Point : BAM
Marker->ARP Up Ecc. (m) : 0.2840
Marker->ARP North Ecc(m) : 0.0000
Marker->ARP East Ecc(m) : 0.0000
Alignment from True N : 0 deg
Antenna Radome Type : NONE
Radome Serial Number :
Antenna Cable Type : (vendor & type number)
Antenna Cable Length : (m)
Date Installed : 2018-04-24T10:05Z
Date Removed : 2018-11-12T10:21Z
Additional Information : Absolute antenna calibration by Geo++ GmbH
: Calibration date: 2018-03-02
4.6 Antenna Type : TRM59800.00 NONE
Serial Number : 5222354502
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.2840
Marker->ARP North Ecc(m) : 0.0000
Marker->ARP East Ecc(m) : 0.0000
Alignment from True N : 180 deg
Antenna Radome Type : NONE
Radome Serial Number :
Antenna Cable Type : (vendor & type number)
Antenna Cable Length : 30 m
Date Installed : 2018-11-12T10:29Z
Date Removed : CCYY-MM-DDThh:mmZ
Additional Information : Individual antenna calibration by Geo++ GmbH
: Calibration date: 2015-07-02
4.x Antenna Type : (A20, from rcvr_ant.tab; see instructions)
Serial Number : (A*, but note the first A5 is used in SINEX)
Antenna Reference Point : (BPA/BCR/XXX from "antenna.gra"; see instr.)
Marker->ARP Up Ecc. (m) : (F8.4)
Marker->ARP North Ecc(m) : (F8.4)
Marker->ARP East Ecc(m) : (F8.4)
Alignment from True N : (deg; + is clockwise/east)
Antenna Radome Type : (A4 from rcvr_ant.tab; see instructions)
Radome Serial Number :
Antenna Cable Type : (vendor & type number)
Antenna Cable Length : (m)
Date Installed : (CCYY-MM-DDThh:mmZ)
Date Removed : (CCYY-MM-DDThh:mmZ)
Additional Information : (multiple lines)
5. Surveyed Local Ties
5.x Tied Marker Name :
Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc)
Tied Marker CDP Number : (A4)
Tied Marker DOMES Number : (A9)
Differential Components from GNSS Marker to the tied monument (ITRS)
dx (m) : (m)
dy (m) : (m)
dz (m) : (m)
Accuracy (mm) : (mm)
Survey method : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc)
Date Measured : (CCYY-MM-DDThh:mmZ)
Additional Information : (multiple lines)
6. Frequency Standard
6.1 Standard Type : INTERNAL
Input Frequency : (if external)
Effective Dates : 2005-02-02/CCYY-MM-DD
Notes : (multiple lines)
6.x Standard Type : (INTERNAL or EXTERNAL H-MASER/CESIUM/etc)
Input Frequency : (if external)
Effective Dates : (CCYY-MM-DD/CCYY-MM-DD)
Notes : (multiple lines)
7. Collocation Information
7.x Instrumentation Type : (GPS/GLONASS/DORIS/PRARE/SLR/VLBI/TIME/etc)
Status : (PERMANENT/MOBILE)
Effective Dates : (CCYY-MM-DD/CCYY-MM-DD)
Notes : (multiple lines)
8. Meteorological Instrumentation
8.1.1 Humidity Sensor Model : QMH 101 - HUMICAP 180
Manufacturer : Vaisala
Serial Number : T3550007
Data Sampling Interval : 120 sec
Accuracy (% rel h) : 2 % rel h
Aspiration : NATURAL
Height Diff to Ant : 1.2 m
Calibration date : (CCYY-MM-DD)
Effective Dates : 2001-04-01/CCYY-MM-DD
Notes : Accuracy: between 0...90% is 2%
: between 90.100% is 3%
8.1.x Humidity Sensor Model :
Manufacturer :
Serial Number :
Data Sampling Interval : (sec)
Accuracy (% rel h) : (% rel h)
Aspiration : (UNASPIRATED/NATURAL/FAN/etc)
Height Diff to Ant : (m)
Calibration date : (CCYY-MM-DD)
Effective Dates : (CCYY-MM-DD/CCYY-MM-DD)
Notes : (multiple lines)
8.2.1 Pressure Sensor Model : PMT16A
Manufacturer : Vaisala
Serial Number : U0440002
Data Sampling Interval : 120 sec
Accuracy : 0.3 hPa
Height Diff to Ant : 1.2 m
Calibration date : (CCYY-MM-DD)
Effective Dates : 2001-04-01/CCYY-MM-DD
Notes : (multiple lines)
8.2.x Pressure Sensor Model :
Manufacturer :
Serial Number :
Data Sampling Interval : (sec)
Accuracy : (hPa)
Height Diff to Ant : (m)
Calibration date : (CCYY-MM-DD)
Effective Dates : (CCYY-MM-DD/CCYY-MM-DD)
Notes : (multiple lines)
8.3.1 Temp. Sensor Model : Pt 100 & Pt 1000
Manufacturer : Vaisala
Serial Number : T3550007
Data Sampling Interval : 120 sec
Accuracy : 0.2 deg C
Aspiration : NATURAL
Height Diff to Ant : 1.2 m
Calibration date : (CCYY-MM-DD)
Effective Dates : 2001-04-01/CCYY-MM-DD
Notes : resistive platinum sensors Pt 100 and Pt 1000
8.3.x Temp. Sensor Model :
Manufacturer :
Serial Number :
Data Sampling Interval : (sec)
Accuracy : (deg C)
Aspiration : (UNASPIRATED/NATURAL/FAN/etc)
Height Diff to Ant : (m)
Calibration date : (CCYY-MM-DD)
Effective Dates : (CCYY-MM-DD/CCYY-MM-DD)
Notes : (multiple lines)
8.4.x Water Vapor Radiometer :
Manufacturer :
Serial Number :
Distance to Antenna : (m)
Height Diff to Ant : (m)
Calibration date : (CCYY-MM-DD)
Effective Dates : (CCYY-MM-DD/CCYY-MM-DD)
Notes : (multiple lines)
8.5.x Other Instrumentation : (multiple lines)
9. Local Ongoing Conditions Possibly Affecting Computed Position
9.1.x Radio Interferences : (TV/CELL PHONE ANTENNA/RADAR/etc)
Observed Degradations : (SN RATIO/DATA GAPS/etc)
Effective Dates : (CCYY-MM-DD/CCYY-MM-DD)
Additional Information : (multiple lines)
9.2.x Multipath Sources : (METAL ROOF/DOME/VLBI ANTENNA/etc)
Effective Dates : (CCYY-MM-DD/CCYY-MM-DD)
Additional Information : (multiple lines)
9.3.x Signal Obstructions : (TREES/BUILDINGS/etc)
Effective Dates : (CCYY-MM-DD/CCYY-MM-DD)
Additional Information : (multiple lines)
10. Local Episodic Effects Possibly Affecting Data Quality
10.x Date : (CCYY-MM-DD/CCYY-MM-DD)
Event : (TREE CLEARING/CONSTRUCTION/etc)
11. On-Site, Point of Contact Agency Information
Agency : Geodetic and Cartographic Institute Bratislava
: SKPOS Department
Preferred Abbreviation : GKU
Mailing Address : Chlumeckeho 4
: 827 45 Bratislava
: Slovakia
Primary Contact
Contact Name : SKPOS Department
Telephone (primary) :
Telephone (secondary) :
Fax :
E-mail : skpos@skgeodesy.sk
Secondary Contact
Contact Name :
Telephone (primary) :
Telephone (secondary) :
Fax :
E-mail :
Additional Information : (multiple lines)
12. Responsible Agency (if different from 11.)
Agency : (multiple lines)
Preferred Abbreviation : (A10)
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)
13. More Information
Primary Data Center : BKG
Secondary Data Center : BEV
URL for More Information :
Hardcopy on File
Site Map : (Y or URL)
Site Diagram : (Y or URL)
Horizon Mask : (Y or URL)
Monument Description : (Y or URL)
Site Pictures : (Y or URL)
Additional Information : hourly data also in LDC GOP
: data flow scheme 3
Antenna Graphics with Dimensions
TRM41249.00 NONE (from 2005-01-11 to 2012-09-14)
/ --------------------------------------------- \
+ +
\ --------------------------------------------- /
\ /
\ /
\-----x-----/ <-- 0.0000 BAM=ARP
<-- 0.3396 -->
ARP: Antenna Reference Point BAM: Bottom of antenna mount
TRM59800.00 NONE (from 2012-09-14 to 2018-04-24, from 2018-11-12)
-----
/ \
| |
+-------------------------------------------------+ <-- 0.1020 TCR
| |
| |
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+-+-------------------------------------------------+-+ <-- 0.0381
+-------------------+-------------+-------------------+ <-- 0.0350 BCR
| |
=| |
+------x------+ <-- 0.0000 BPA=ARP
<-- 0.3810 -->
ARP: Antenna Reference Point BPA: Bottom of Preamplifier
BCR: Bottom of Chokering TCR: Top of Chokering
TRM115000.00 NONE (from 2018-04-24 to 2018-11-11)
/ --------------------------------------------- \
+ +
\ --------------------------------------------- /
\ /
\ /
\-----x-----/ <-- 0.0000 BAM=ARP
<-- 0.3396 -->
ARP: Antenna Reference Point BAM: Bottom of antenna mount
Monument description:
-----
/ \
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+-------------------------------------------------+
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+-+-------------------------------------------------+-+
+-------------------+-------------+-------------------+
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=| |
+------x------+ <-- 0.2900 BPA=ARP
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reference point --> +-x-+ <-- 0.0000
+----------------+---+-----------------+
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~ concrete pillar ~
~ ~
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~~~+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+~~~ <-- -3.0000 ground
