epn central bureau igs analysis workshop 2008, miami royal observatory of belgium c. bruyninx, j....
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EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
C. Bruyninx, J. Legrand, F. Roosbeek
EPN Central BureauRoyal Observatory of Belgium
http://epncb.oma.be/
GNSS Network Management GNSS Network Management Procedures: Application to the EPNProcedures: Application to the EPN
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
203 permanent GNSS stations30 % GPS+GLONASS91 % hourly 44 % real-time40 % IGS
38 countries
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
Real-timeHourly
Daily
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
BACKGROUND BACKGROUND > GUIDELINES > NEW STATIONS > MONITORING > SUMMARY> GUIDELINES > NEW STATIONS > MONITORING > SUMMARY
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
Site guidelines – Difference between IGS and EPN guidelines
Hourly and daily data flow 2004-2005Dependence on one regional data centre
Guidelines for real-time data 2006EUREF-IP Pilot Project
Antenna Calibrations 2006IGS switch to APCV
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
BACKGROUND BACKGROUND > > GUIDELINES GUIDELINES > NEW STATIONS > MONITORING > SUMMARY > NEW STATIONS > MONITORING > SUMMARY
IGS ≠ EPNIGS ≠ EPN
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
Dec. 2004: guidelinesSpring 2005: implementation
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
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BACKGROUNDBACKGROUND > > GUIDELINES GUIDELINES > NEW STATIONS > MONITORING > SUMMARY > NEW STATIONS > MONITORING > SUMMARY
DATA FLOWDATA FLOW
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
Result:
-2 regional data centers :
OLG (Austria) and BKG (Germany)
95% 99%(BRST, BSCN,CAGZ,KELY, PUYV, QAQ1, RABT, THU3, TRAB, VFCH) (REDU, TRAB)
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
BACKGROUND BACKGROUND > > GUIDELINES GUIDELINES > NEW STATIONS > MONITORING > SUMMARY> NEW STATIONS > MONITORING > SUMMARY
AANTENNANTENNA
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
- EUREF-IP Pilot Project : 2002-2007- Today: real-time data dissemination part of routine EPN operations
EPN Site Guidelines: - 3 new network components
Local Broadcaster, Regional Broadcaster (www.euref-ip.net),High Rate Data Centre (ftp://igs.bkg.bund.de/EUREF/highrate/yyyy/DOY/H/)
- EPN real-time streams → Regional Broadcaster → Users
- Min. Requirement: 1 Hz data, full code and carrier phases
- Format: RCTM 2.X (X=1,2,3), RCTM 3.X (X=0,1), SOC, RAWConverter to RINEX needs to be freely available
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
BACKGROUND BACKGROUND > > GUIDELINESGUIDELINES > NEW STATIONS > MONITORING > SUMMARY > NEW STATIONS > MONITORING > SUMMARY
REAL-TIMEREAL-TIME
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
November 2006 IGS switch to APCV• Absolute calibrations
converted field calibrations (elev dependency, probl. below 10°) True absolute calibrations (elev+azimuthal dependency), eg GEO++
• For IGS stations: IGS CB can distribute type absolute calibration values (GEO++) for antenna/radomes
• BUT for EPN stations : EPN CB can NOT publish absolute type calibrations (GEO++) for antenna/radome included in the EPN, but not in IGS
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
BACKGROUNDBACKGROUND > > GUIDELINESGUIDELINES > NEW STATIONS > MONITORING > SUMMARY > NEW STATIONS > MONITORING > SUMMARY
AANTENNANTENNA
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
Abs. calib. from robot 69%Converted field calib. 16%Uncal. pairs 15%
Nov. 2006
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
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BACKGROUND BACKGROUND > > GUIDELINESGUIDELINES > NEW STATIONS > MONITORING > SUMMARY > NEW STATIONS > MONITORING > SUMMARY
AANTENNANTENNA
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
EUREF objectives:• Reduce # of antenna/radome combinations without known absolute robot
calibrations and work towards long-term improvement of network
• Need to find a solution for (future) EPN stations with known abs. type calibr. but not included in IGS network
New EPN guidelines (Dec 2006):• All antenna/radome combinations introduced within EPN station after Dec
5, 2006 must have TRUE absolute calibrations (taking radome into account).
• Use IGS ATX complemented with absolute individual antenna/radome calibrations for EPN stations
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
BACKGROUND BACKGROUND > > GUIDELINESGUIDELINES > NEW STATIONS > MONITORING > SUMMARY > NEW STATIONS > MONITORING > SUMMARY
AANTENNANTENNA
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
May 2008Indiv. abs. calib 8%True abs. calib 69 % 77%Calib. from field 11%No calib. 12%
Dec. 2006Indiv. abs. calib., 5%True abs.calib 64% 69%Calib. from field 14%No calib. 17%
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
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BACKGROUND BACKGROUND > > GUIDELINESGUIDELINES > NEW STATIONS > MONITORING > SUMMARY > NEW STATIONS > MONITORING > SUMMARY
AANTENNANTENNA
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
GEO++ letter to IGS
August 2nd, 2007
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
BACKGROUNDBACKGROUND > > GUIDELINES GUIDELINES > NEW STATIONS > MONITORING > SUMMARY> NEW STATIONS > MONITORING > SUMMARY
AANTENNANTENNA
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
Procedure for inclusion of new EPN stations:
1. Commitment letter (5 years)• Location in EPN, co-locations, connection to national and European levelling
network• GNSS receiver and antenna/radome type + calibration• Planned data flow
2. Site log3. Operational Centre Form4. Digital Station Pictures5. If site log is approved :
Start daily+ hourly data flow to primary and secondary data centres + real-time data flow to real-time broadcaster
6. EPN CB verifications7. Once passed the EPN CB verifications, EPN ACs are contacted (3 ACs needed)8. EUREF mail to announce new EPN station
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
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BACKGROUNDBACKGROUND > GUIDELINES > > GUIDELINES > NEW STATIONS NEW STATIONS > MONITORING > SUMMARY> MONITORING > SUMMARY
PROCEDUREPROCEDURE
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
EPN CB Verifications
Daily Hourly Real-time
Availability x x x
Latency x x x
Meta-data x x
Quality x
Daily&hourly metrics
90% availability requested in 2 RDC90% below 10 min. latency (hourly)Last 7 days
Real-time metrics 90% availability at regional broadcasterLatency: Simulate user and download stream using 2-hour samples
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
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BACKGROUND BACKGROUND > GUIDELINES > > GUIDELINES > NEW STATIONS NEW STATIONS > MONITORING > SUMMARY> MONITORING > SUMMARY
VERIFICATIONSVERIFICATIONS
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
OSJE (Croatia) RTCM3.0 0.5 sBRUS (Belgium) RTIGS 1.8 sBELL (Spain) RTCM3.0 3.5 s
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
BACKGROUNDBACKGROUND > GUIDELINES > > GUIDELINES > NEW STATIONS NEW STATIONS > MONITORING > SUMMARY> MONITORING > SUMMARY
VERIFICATIONSVERIFICATIONS
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
EPN CB VerificationsDaily Hourly Real-time
Availability BKG/OLG x x
Latency x x x
Meta-data x x
Quality x
DailyMeta-data verification: RINEX data versus site log Similar to IGS but, including antenna serial number!
Real-time (RTCM format)antenna/radome type, antenna height, station coordinates 2 hour samples
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
BACKGROUND BACKGROUND > GUIDELINES > > GUIDELINES > NEW STATIONS NEW STATIONS > MONITORING > SUMMARY> MONITORING > SUMMARY
VERIFICATIONSVERIFICATIONS
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
EPN CB Verifications
Daily Hourly Real-time
Availability x x x
Latency x x x
Meta-data x x
Quality x
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
BACKGROUND BACKGROUND > GUIDELINES > > GUIDELINES > NEW STATIONS NEW STATIONS > MONITORING > SUMMARY> MONITORING > SUMMARY
VERIFICATIONSVERIFICATIONS
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
Data quality verification : - Teqc-based - tracking plots
Tracking at low elevations:- elevation cut off angle- L2-obstructions
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
BACKGROUNDBACKGROUND > GUIDELINES > > GUIDELINES > NEW STATIONS NEW STATIONS > MONITORING > SUMMARY> MONITORING > SUMMARY
VERIFICATIONSVERIFICATIONS
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
Stations are not included in EPN as long as all criteria are not fulfilled
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
BACKGROUND BACKGROUND > GUIDELINES > > GUIDELINES > NEW STATIONS NEW STATIONS > MONITORING > SUMMARY> MONITORING > SUMMARY
SUMMARYSUMMARY
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
EPN CB Web site = gateway to all information about EPN sites
• Verifications continue after station is included in EPN
• Complemented with results of other agencies contributing to EPN• time series (rapid, long-term)• ZTD biases
• Automated site logs test/submission through email • for IGS stations copy to IGS CB• Web-based site log submission under development
• No automatic emails to station managers • reduce # of false alarms & automatic filter to trash• but time consuming
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
BACKGROUND BACKGROUND > GUIDELINES > NEW STATIONS > > GUIDELINES > NEW STATIONS > MONITORING MONITORING > SUMMARY> SUMMARY
WEBWEB
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
EUREFmail• Monthly reports on latency of hourly data • Weekly reports on availability and meta-data consistency in daily data
Extended reports under developmenteg availability and latency of real-time data
MAILSMAILSBackground Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring
> Summary > SummaryBackground Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring
> Summary > SummaryBACKGROUND BACKGROUND > GUIDELINES > NEW STATIONS > > GUIDELINES > NEW STATIONS > MONITORING MONITORING > SUMMARY> SUMMARY
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
Interaction with EUREF Analysis Centerseuref.snx, excluded.wwww,…
Weekly verification of SINEX files
• Antenna/radome type + serial number
• Antenna calibration values – offsets only
• Station list (missing EPN stations, non-EPN stations)
• Emails to AC (copy to AAC)
ANALYSIS CENTRESANALYSIS CENTRESBackground Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring
> Summary > SummaryBackground Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring
> Summary > SummaryBACKGROUND BACKGROUND > GUIDELINES > NEW STATIONS > > GUIDELINES > NEW STATIONS > MONITORING MONITORING > SUMMARY> SUMMARY
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
• EPN guidelines : data flow, real-time, antenna
• New EPN stations: – Quality over quantity, but exceptions are allowed– If you do not get the info at the time the station is proposed, then you
will never get it once it is in the EPN
• Follow up is crucial
• Statistics available on-line for station managers and ACs – Usage?– Limited alarms running, but need for more. Automated emails?
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
Background Background > Status > Guidelines > Tracking > Monitoring > Status > Guidelines > Tracking > Monitoring > Summary > Summary
BACKGROUND BACKGROUND > GUIDELINES > NEW STATIONS > MONITORING > > GUIDELINES > NEW STATIONS > MONITORING > SUMMARYSUMMARY
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
Background Background > Management > Guidelines > New Stations > > Management > Guidelines > New Stations > MonitoringMonitoring > Summary > Summary EPN CBEPN CB
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
Background Background > Management > Guidelines > New Stations > > Management > Guidelines > New Stations > MonitoringMonitoring > Summary > Summary EPN CBEPN CB
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
Background Background > Management > Guidelines > New Stations > > Management > Guidelines > New Stations > MonitoringMonitoring > Summary > Summary EPN CBEPN CB
EPN Central BureauEPN Central Bureau IGS Analysis Workshop 2008, Miami IGS Analysis Workshop 2008, Miami Royal Observatory of BelgiumRoyal Observatory of Belgium
Background Background > Management > Guidelines > New Stations > > Management > Guidelines > New Stations > MonitoringMonitoring > Summary > Summary EPN CBEPN CB