Galileo Information Center for Latin America / Application of the ISMR Query Tool in the analysis of Ionospheric Scintillation from Galileo Satellites Bruno César Vani Programa de Pós-graduação em Ciências Cartográficas, Universidade Estadual Paulista Júlio de Mesquita Filho Raul Ramos Centro de Información Galileo para América Latina CALIBRA DAY 09/05/2014
Outline Part 1: Galileo Information Center Latin America Participating Institutions Goals Galileo / Egnos Conclusions Part 2: Application of the ISMR Query Tool in the analysis of Ionospheric Scintillation from Galileo Satellites Galileo data at CIGALA/CALIBRA Network Exploratory Data Analysis with ISMR Query Tool Future work Remarks
Centro de Información Galileo para América Latina Centro de Informações Galileo para a América Latina Part 1: Galileo Information Center Latin America www.galileoic.org
Centro de Información Galileo para América Latina Centro de Informações Galileo para a América Latina Since 2005 new phase 2014-2016 government br Funded by DG Enterprise and Industry PARTICIPATING INSTITUTIONS industry es ar research co cl co no mx fr latam co Large Array GRB Observatory fr www.galileoic.org
Centro de Información Galileo para América Latina Centro de Informações Galileo para a América Latina support EU in priority setting for upcoming GNSS initiatives in LATAM raise awareness on issues of special interest for LATAM on GNSS as GALILEO becomes a reality foster sinergies to participate on GNSS H2020 calls and opportunities model a network of GALILEO Joint Information Offices across LATAM in cooperation with local stakeholders GOALS identify LATAM specificities for collaboration opportunities in research and industry www.galileoic.org
Centro de Información Galileo para América Latina Centro de Informações Galileo para a América Latina Aerocivil Bogotá Nov 2012 DGAC Chile - Nov 2013 COCESNA Salvador May 2013
Europe s contribution to satellite navigation consists of two systems EGNOS Overlay system Improves GPS performance European coverage 3 services Galileo Autonomous infrastructure Performances similar to GPS Global coverage 5 services It s there, use it
Galileo enhances Europe s technological independence The first global satellite positioning, navigation, and timing system, designed and operated under civil control As of 2008, financed entirely by the European Union and managed by the European Commission Provides Europe independence from other similar systems and greater robustness Targeted to be interoperable with other GNSS to facilitate their combined use and to offer better performances for all kinds of user communities worldwide
Centro de Información Galileo para América Latina Centro de Informações Galileo para a América Latina The first two operational satellites were launched on 21 October 2011 The third and fourth Galileo satellites, completing the IOV quartet, were launched on 12 October 2012 All industrial contracts necessary to ensure early Galileo services in 2014 have been signed To accelerate Galileo s deployment and to further contain costs, the following contracts were signed on 2 February 2012: Additional order for 8 satellites (total of 26) Adaptation of Ariane-5 for Galileo Booking of one Ariane-5 The first positioning test based on the 4 first operational Galileo satellites was conducted by ESA on 12 March 2013 Next two satellites currently (2014Q2) in test stage
Centro de Información Galileo para América Latina Centro de Informações Galileo para a América Latina EGNOS Open Service is operational since October 2009 Its Safety of Life service has been declared operational in March 2011 Around 100 approach procedures making use of EGNOS for aircraft landings approved in Europe LPV: Localizer Performance with Vertical guidance
Galileo services Early services for OS, SAR and PRS will be provided from 2014
Conclusions EGNOS is operational EGNOS OS since October 2009 EGNOS SoL service since March 2011 EGNOS Data Access Service since July 2012 Galileo is taking off All procurement contracts awarded First four operational Galileo satellites launched in October 2011 and in October 2012 Deployment is being accelerated First positioning test on 12 March 2013 Early Galileo OS/SAR/PRS services from 2014 Early Galileo CS services from 2016 International coordination is key Ensure compatibility with other GNSS as a minimum Achieve interoperability when desired Fostering uptake of EGNOS and Galileo worldwide through applications development
Part 2: Application of the ISMR Query Tool in the analysis of Ionospheric Scintillation from Galileo Satellites
Galileo data CIGALA/CALIBRA Network time, azimuth, elevation S4, Sigma-phi TEC (based on the L1BC and E5a pseudoranges) dtec (the change of TEC over the four 15-s intervals during the last minute, computed from carrier phase measurements) Code-phase divergence: average and standard deviation of code/carrier phase divergence Locktime and others.. Frequencies: L1BC E5a E5b
Analysis of Galileo data ISMR Query Tool
Elev cuttoff 10º Galileo daily coverage at IPP
Elev cuttoff 10º Galileo daily coverage at IPP
Orbital Repeatibility Galileo 19 Day 1 Day 2... GPS 5 GLONASS 13 Image: http://www.esa.int/spaceinimages/images/2000/10/galileo
Classification Thresholds For convenience: Weak : S4 0.3 Moderate : 0.3 S4 Strong : S4 0.6 0.6
Comparison: 2013 GPS, GLONASS, Galileo
Examples Station FORT
Window size: 30 min S4 L1 - Jan/2014 Elev cuttoff 10º Lin et al. (2003, 2004)
2014-01-23 23:00 ~ 2014-01-24 01:00
2014-01-23 23:00 ~ 2014-01-24 01:00
2014-01-23 23:00 ~ 2014-01-24 01:00
Exploratory Analysis
Exploratory Analysis
Satellites availability
Satellites availability
Remarks Capability on: identifying high ionospheric scintillation periods in the region of the network Performing constellation comparisons Specific analysis which support: substantiation of new hypothesis about ionospheric scintillation Integration of Systems
Future work Ionospheric modeling with Galileo Add Galileo capabilities on prediction models or mitigation approaches under development Positioning with Galileo Enjoy the Multi-GNSS Experiment (MGEX) initiative of IGS Investigation on Multi-GNSS positioning Modeling Integration on UNESP s in house software
Acknowledgements
EGNOS Open Service is operational since October 2009 Its Safety of Life service has been declared operational in March 2011 Since December 2011, the EGNOSbased LPV procedures at Alderney airport (Channel Islands) are the first in Europe able to being used for revenue services in commercial flights Around 100 approach procedures making use of EGNOS for aircraft landings approved in Europe The EGNOS Data Access Service (EDAS) was declared in July 2012 LPV: Localizer Performance with Vertical guidance
Galileo system architecture 5 mission uplink stations 5 TT&C stations Constellation of 30 MEO satellites Users & service providers 2 control centres IOT centre 2 launch and early operations centres 16-20 Galileo sensor stations MEO: Medium Earth Orbit TT&C: Telemetry, Tracking and Command IOT: In-Orbit Testing