Depreciation calculation when asset is retired

Dear all

We have a business requirement, asset loaded through Web ADI with following values  

Cost of Asset – 87750

Salvage Value - 10000 

Depreciation Reserve as of DEC-10 - 71769.23

NBV as of DEC-10 - 15980.77

Date Placed in service was 31-DEC-2004, Prorate Date - 01-Jan-2005

Asset was retired on 31-JAN-2011, system calculated depreciation amount of 996.79, .i.e. (Cost 87750 – Salvage Value 10000)/Asset Life 78 Months (depreciation method = STL, asset life was 6 years 6 months)

Is it possible to prevent depreciation being calculated in month of retirement for asset, is there any setup in Oracle that allows this.

Regards

Ismail Sherief