surveyor

The Mars Surveyor 2001 Project consists of two separately launched missions, The Mars Surveyor 2001 Orbiter and the Mars Surveyor 2001 Lander. The 20 day launch window for Mars Surveyor 2001 Orbiter opens on 7 March 2001. After launch on a Delta 7425 (a Delta II Lite launch vehicle with four strap-on solid-rocket boosters and a Star 48 (PAM-D) third stage) and a nine month cruise the spacecraft will reach Mars between 10 and 23 December 2001.