Propagator results are NaN without throwing error
In the vertex fitter the propagator is used to propagate track parameters to a target surface. In some cases the propagation result is ok()
, however, endParameters->parameters()
, endParameters->position()
and endParameters->covariance()
are all NaN
.
Example track where this happens: initial parameters q=(-0.078,-141.138,-2.166,2.628,0.834,0.006)
propagated to target perigee surface at (-16.64,-47.59,-43.88)
.
Edited by Bastian Schlag