Determination of the Zero Point of Celestial Reference—he Weight of Zero Point Correction by Using Different Asteroids

From previous results, it is found that the weight of different astroid utilization to determine the celestial reference's zero point is different because their orbitsare not the same. In this paper, we discuss the condition needed for observation, and analyse the solution deviation for E and D. This work is preparaed for further research that can provide a standard for selecting the proper asteroids to determine the zero point of the reference. Meanwhile, it can also analyse the precision of E and D determined in practice.