Space borne linear array sensors have been introduced into photogrammetry since twenty years ago.However

the traditional solution of frame photograph cannot deal with image data obtation by linear array sensors because the position and attitude observations of the spacecraft vary at each scanner line.Thus it is impossible to determinate the exterior orientation parameters of each scanner line.A proper approximation has to be applied to the spacecraft trajectory model to reduce the unknown factors in bundle adjustment.There are three models feasible to represent the satellite trajectory:Quadratic Polynomial Model（QPM）

Systematic Error Compensation Model（SECM）

and Orientation Image Model（OIM）.Revealing the differences of the three sensor models and relationships between different control strategies and the final accuracy of geo-referencing after bundle adjustment is the main purpose of this paper.To fully evaluate the accuracy that the space borne three-line scanner can achieve

experiments with LMP

SECM and OIM triangulation algorithms are performed with a 500 km length data sets of the Mapping Satellite-1 under the WGS-84 coordinate system.