The Nozomi (Japanese for Hope and known before launch as Planet-B) was launched on 3 July 1998. The arrival of Nozomi at Mars was delayed four years from its originally scheduled rendezvous in 1999 in order to conserve fuel. The spacecraft used more propellant than planned in a course correction maneuver on 21 December 1998 after the 20 December Earth flyby left the craft with "insufficient acceleration". The spacecraft will continue in a heliocentric orbit until it encounters Mars in December of 2003.
NASA/NSSDC
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