Today I convolutional decoded the messages sent by PRN127.
Then I used the SBAS teacher to interprete the result and, well, you can see the message 9 yourself.
X: 18521754.08 Y: 37836816.64 Z:1649068.8
Lat: 2.24398167 Lon: 63.9174794 Alt: 35781111.72
See the snapshot of the view of the earth from the satellite!
If my calculations are not wrong, from Nottingham is
Elev: 7.959023 Azim: 108.99077 Distance: 40797572.51
I leave comments to the readers :)
P.S.: Thanks to Massimo and Simone for your precious contributes!