[IGSSTATION-7701] Re: EGNOS SBAS satellites data

[Nacho Romero]

Dear sir,

Navigation messages from specific stations can have issues so please 
read through several station files that may have the PRNs you need or 
through the merged navigation file such as below, to see if what you 
found is corrected/different from other receivers;

ftp://gssc.esa.int/gnss/data/daily/2019/brdc/BRDC00IGS_R_20191610000_01D_MN.rnx.gz

This email list is for communications on IGS network station issues and 
not for these specific questions. Please respond to David Maggert (IGS 
network coordinator) and myself (IGS Infrastructure Committee Chair) 
directly if further help is needed.

Also please recall that the IGS is a voluntary organization bringing 
together resources from hundreds of organizations on a best effort basis 
and that we do not guarantee the suitability or accuracy of the data or 
products for any specific purpose.

Finally the only EGNOS data we hold are pseudoranges in the observation 
files from some stations and the navigation messages as recorded by 
individual tracking stations, please let David and I know if we can be 
of further assistance.

Best regards,
Nacho
_______________________________________________________________

Ignacio (Nacho) Romero
Aerospace Engineer, PhD
CSC Ltd @ ESA/ESOC/OPS-GN
Satellite Navigation Engineer @ ESOC Navigation Support Office
IGS Infrastructure Committee Chair
www.navigation-office.esa.int
www.canaryspaceconsulting.co.uk
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On 12/07/2019 18:20, John Gerrard wrote:
> Dear members
>
> I want to use SBAS data of EGNOS satellites. As stated in this link : 
> IGS MGEX SBAS <http://mgex.igs.org/IGS_MGEX_Status_SBAS.php> currently 
> EGNOS satellites (including Inmarsat 3-F2 (PRN 120), SES 5 (PRN 136), 
> Astra 5B (PRN 123)) are operational. However, in the ftp 
> address ftp://ftp.cddis.eosdis.nasa.gov/pub/gnss/data/daily/2019, in 
> the data of the station: WTZZ00DEU 
> <ftp://ftp.cddis.eosdis.nasa.gov/pub/gnss/data/daily/2019/161/19h/WTZZ00DEU_R_20191610000_01D_SN.rnx.gz>, 
> for example WTZZ00DEU_R_20191610000_01D_SN.rnx.gz 
> <ftp://ftp.cddis.eosdis.nasa.gov/pub/gnss/data/daily/2019/161/19h/WTZZ00DEU_R_20191610000_01D_SN.rnx.gz>, only 
> PRNs of 127 and 128 have URA index of 14, while for other PRNs such as 
> 123 and 136, URA index is equal to 15 (URA = 32767 meters) 
> and Satellite position Z is equal to zero.
>
> Why this is so?
>
> How is it possible that Satellite position Z is always equal to zero?!
>
> How can I access SBAS data of EGNOS satellites?
>
> Best Regards
>
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> IGSSTATION at lists.igs.org
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