      coefficients. The dimension of this array can be smaller
                     than LMAX+1.

                     item DOYSTART

                     (output) REAL*8, OPTIONAL

                     The starting time of the solution.

                     item DOYEND

                     (output) REAL*8, OPTIONAL

                     The ending time of the solution

                     item EPOCH

                     (output) REAL*8, OPTIONAL

                     The EPOCH time for the time derivat