In order to correct the static pointing of the level theodolite which is used to track high orbit targets without blind areas

this paper analyses and researches usual pointing correction models. Three kinds of pointing correction models

spherical harmonic function

Strom lo and horizontal models

are introduced and the last one is modified. Then

MATLAB regression analysis is used to analyze these static pointing models with measured star data and the inner conformity and the outer conformity methods are used to contrast the precisions of three kind static pointing models. Finally

a modified pointing model suitable for an actual level mounting theodolite is obtained. The modified pointing model is used to correct an actual pointing of the level mounting theodolite.Experimental results indicate that the correction precision of the

L

-axis is 0.445 3″

and that of the

B

-axis is 0.395 4″. Furthermore

the contrast analysis demonstrates that the pointing accuracies corrected by Strom lo and level models are much better than that by the spherical function mode and the pointing accuracy from the Strom lo mode is a little better than that of the level model. Obtained results show that the spherical function mode is not suitable to correct the static pointing of the level mounting theodolite.