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-rw-r--r--src/state.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/state.cpp b/src/state.cpp
index e53ad29..8b69ca2 100644
--- a/src/state.cpp
+++ b/src/state.cpp
@@ -1026,7 +1026,7 @@ State::qhat ( const Quaterniond &q )
void
State::quaternion_covariance ( )
{
- P.block<4,4>(6,6) = 1e-5*Matrix<double,4,4>::Identity();
+ P.block<4,4>(6,6) = 1e-12*Matrix<double,4,4>::Identity();
return ;
} /* ----- end of method State::quaternion_covariance ----- */