In accordance with the plan of international joint observation of dangerous objects fall agreed on the 30th Inter-Agency Space Debris Coordination Committee (IADC) meeting in 2012, IADC predicted that the debris of China Long March IV-B launch vehicle upper stage and Russian Universe No.1484 would fall from outer space in the end of the December, 2012 and the end of January, 2013 respectively. Since the end of November, 2012, China National Space Administration has organized related organizations to conduct continuous observation and comprehensive analysis with regard to the moving trajectory and falling process of the objectives, and submitted the related outcome to IADC.