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OSNMAStatusafterTesting

Completion

02/09/2024

OSNMAMainApplicable

Documents

https://www.gsc-europa.eu/electronic-library/programme-reference-

documents#OSNMA

?OSNMASISICD(v1.1,Oct2023):TogetherwiththeOSSISICD,containsallinformationontheOSNMASISandspecifiestheinterfacebetweenthe

GalileoSpaceandUserSegments.

?OSNMAReceiverGuidelines(v1.3,Jan2024):ComplementsOSNMASISICDwithuserimplementationguidelines.SpecifiesusercapabilitiesandstepstoverifytheauthenticityoftheGalileonavigationmessage.

?OSNMAIDDICD(v1.1,Jan2024):Specifieshowtoretrievethe

cryptographicdata(PublicKeyandMerkleTree)viatheInternet.SupportedbyPublicKeyInfrastructure(PKI)certificates.

Thesedocumentversionsaretheonestobeusedforentryintooperation.

OSNMACertificatesandOther

CryptographicMaterial

https://www.euspa.europa.eu/about/corporate-documents/pki-public-key-infrastructure/pki-policy

?CP-CPSforRCA001(v1.1,Jan2024):DescribesEUSPAcertificationpolicyandpracticesforissuingdigitalcertificatesfromEUSPARCA(RootCertificateAuthority)toSCA(SubordinateCertificateAuthority).

?CP-CPSforSCA001(v1.1,Jan2024):DescribesEUSPAcertificationpolicyandpracticesforissuingdigitalcertificatesfromEUSPASCAtoICA(IssuingCertificateAuthority).

https://www.euspa.europa.eu/about/corporate-documents/pki-public-key-infrastructure/pki-products

?OSNMAapplicablecertificatesandrevocationlistsofRCAandSCA.

https://www.gsc-europa.eu/gsc-products/pki

?CP-CPSforICA001(v1.1,Jan2024):DescribesEUSPAcertificationpolicyandpracticesforissuingdigitalcertificatesfromEUSPAICAtoOSNMAEndEntity.

?OSNMAapplicablecertificatesandrevocationlistsofICA.

https://www.gsc-europa.eu/gsc-products/OSNMA/MT

(*)

?OSNMAcertificatesandrevocationlistsofMerkleTree(MT)(‘EndEntity’certificate).

?OSNMAMerkleTree(MT)applicablerootandleaves,sinceJan2024.

https://www.gsc-europa.eu/gsc-products/OSNMA/PKI

(*)

?OSNMAcertificatesandrevocationlistsofOSNMAPublicKey(PK)(‘EndEntity’certificate).

?OSNMAPublicKey(PK)applicable,sinceJan2024.

TheseOSNMAoperationalcertificates,cryptographicmaterialandassociated

documentationaretheonestobeusedforentryintooperation.

(*)onlyforregisteredusers::

https://www.gsc-europa.eu/support-to-developers/osnma-public-observation-test-phase/register

OSNMAPerformance-Tag

Availability(I)

AvailabilityofADKD0(authenticationforGalileoI/NAVorbitandclockdata,Word

Types1-5)over5。elevation,from1stto31stMay2024.

ADKD0for4ormoresatellitesinviewwithin1subframe(30s)

min:97.73%|mean:98.90%|max:99.40%

ADKD0forallsatellitesinviewwithin600smin:93.52%|mean:95.27%|max:96.45%

OSNMAPerformance-Tag

Availability(II)

AvailabilityofADKD4(authenticationofGalileo

I/NAVtimingdata,WordTypes6and10)

over5。elevation,from1stto31stMay2024,

within60sfrom1+satellites

min:98.96%|mean:99.38%|max:99.50%

AvailabilityADKD12(authenticationofGalileo

I/NAVorbit/clockdata,WordTypes1-5,witha5-

mindelayedkeywrt.ADKD0forloosetimesync.)

over5。elevation,from1stto31stMay2024,

within240sfrom4+satellites

min:94.34%|mean:98.38%|max:99.48%

OSNMAPerformance-TagAvailability

(III)

MeasuredTag

AverageofMonthlyAvailabilitiesatWUL1stJanuary-31stMay2024

ADKD0-AllSVsinview,600s

96.3154%

ADKD0-Atleast4SVsinview,30s

98.7157%

ADKD4-Atleast1SVinview,60s

99.2567%

ADKD12-Atleast4SVsinview,240s

97.5368%

Similarorevenhighertagavailabilityisexpectedforentryintooperation.

OSNMAPerformance-Position

Availability

SingleFrequency

AvailabilityofOSNMApositionsolution(ADKD0)usersvs.GalileoOSusers.DefinedaspercentageoftimewhenOSNMAandGalileoOSpositionsolutionsusethesamesatellites.

YearlyAvailabilityatWUL

(January-May2024)

SingleFrequencyUsers

≥99.0233%

DualFrequencyUsers

≥99.0233%

DualFrequency

Similarorevenhigherpositionavailabilityisexpectedforentryintooperation.

OSNMAPerformance-Tag

Verification

100%successratesinceFebruary2024.PreviousunsuccessfuleventslinkedtochangeinDVSstatusflag.BehavorinlinewithOSNMASISICD.

Successfultagverificationforsingle/dualfrequency

Fullsuccessrateexpectedforentryintooperation,exceptforverysporadic(<10-7)

potentialDVSflagchangesinspecificsatellites,asperOSNMASISICD.

Linkingspacetouserneeds

Getintouchwithus

www.euspa.europa.eu

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