 = 3.2e-001
 Iter  2: fit = 3.645517e-001 fitdelta = 4.3e-002
 Iter  3: fit = 3.732887e-001 fitdelta = 8.7e-003
 Iter  4: fit = 3.809608e-001 fitdelta = 7.7e-003
 Iter  5: fit = 4.021826e-001 fitdelta = 2.1e-002
 Iter  6: fit = 4.427524e-001 fitdelta = 4.1e-002
 Iter  7: fit = 4.734919e-001 fitdelta = 3.1e-002
 Iter  8: fit = 4.848760e-001 fitdelta = 1.1e-002
 Iter  9: fit = 4.890031e-001 fitdelta = 4.1e-003
 Iter 10: fit = 4.907726e-001 fitdelta = 1.8e-003
 Iter 11: fit = 4.916244e-001 fitdelta = 8.5e-004
