Changing UM orbital parameters?

Dear NCAS Helpdesk,

Where in the rose suite GUI are orbital parameters (related to obliquity, eccentricity, and perihelion) set?
E.g. as in ‘CP - Large-scale features of Last Interglacial climate: results from evaluating the lig127k simulations for the Coupled Model Intercomparison Project (CMIP6)–Paleoclimate Modeling Intercomparison Project (PMIP4)’, in Table 1, the orbital parameters for the LIG127k simulation differ from the PI control simulation. I differenced u-ba937 (LIG127K simulation) and u-ar930 (PI simulation) but could not find a difference in orbital parameters between them.
Many thanks.

Best wishes,


Try um->namelist->UM Science Settings->Planet Constants