A method to evaluate the level of solar activity at the remainder of a progressing solar cycle

A modified method is developed to evaluate the level of solar activity at the remainder of a progressing solar cycle based on a method previously proposed by [Li, K.J., Zhan, L.S., Wang, J.X., et al., 2002a. A&A 392, 301]. The behavior of sunspot numbers at the remainder of cycle 23 is studied. A comparison of different methods that predict sunspot numbers of a whole cycle is also given in this paper.