Microbolometer array technology is making rapid progress in the commercial and tactical military world. An array was used for uncooled IR imaging in a very successful Shuttle flight and more is planned. Applications for long missions with microbolometers are on the drawing board. A recent study concluded that an uncooled staring array, when applied to Mid IR atmospheric ozone limb profile measurement could dramatically improve earth coverage, vertical precision and mixing ratio accuracy. Imaging by a staring array also alleviates some of the problems of non-imaging approach. This paper describes the technique and strategy of ozone profiling with an uncooled microbolometer array, the derived key instrument requirements and a brief discussion on the instrument implementation approach.