 The ASAT kill vehicle relies on an imaging infrared seeker and also has been described as a modified HQ-19 with a KT-1 rocket booster.The program is said to have been at least partially funded by China's 863 Program (specifically, the 863-409 focus area).The closing velocity of the intercept was approximately 8 kilometers per second (17,900 mph), comparable to the American National Missile Defense system.