  New calculations of the energy levels, radiative transition rates and
collisional excitation rates of \ion{Fe}{ix} have been carried out using the
Flexible Atomic Code, paying close attention to experimentally identified
levels and extending existing calculations to higher energy levels. For lower
levels, R-matrix collisional excitation rates from earlier work have been used.
Significant emission is predicted by these calculations in the 5f-3d
transitions, which will impact analysis of SDO AIA observations using the
94\AA\ filter.
