51826 Kalpanachawla (2001 OB34) is an asteroid named for Indian-born astronaut Kalpana Chawla, who was killed in the STS-107 (Columbia) space shuttle reentry disaster on February 1, 2003. 51826 Kalpanachawla was discovered on July 19, 2001 at Palomar Observatory by the JPL Near Earth Asteroid Tracking Program.