The primary objective of the Mars Pathfinder mission was to demonstrate an
innovative, low-cost, reliable method for piecing a science payload on the
surface of Mars. The spacecraft performance during entry, descent, and land
ing is assessed. Analysis of the accelerometer and altimeter flight data ob
tained by the Pathfinder spacecraft during atmospheric flight is provided.
Results of an effort to reconstruct the spacecraft trajectory and attitude
history are presented. An estimate of the Mars atmosphere profile encounter
ed during atmospheric flight is given.