[IGSSTATION-7700] EGNOS SBAS satellites data

[John Gerrard]

 Dear members

I want to use SBAS data of EGNOS satellites. As stated in this link : IGS MGEX SBAS 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, for example 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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