Lena you are a smart girl, so lets look at MRSP-64:
Item 10
https://picasaweb.google.com/lh/phot...eat=directlink
Item 24
https://picasaweb.google.com/lh/phot...eat=directlink
I repeat, the limit is 82.5 degrees
Data are read from both horizons.
Now, can you tell me why registered values stopped below 82.5 degrees if there was a barrel roll?