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Model, Antenna, High-gain, Mars, Pathfinder Lander


Display Status:

This object is on display in the Space Science exhibition at the Steven F. Udvar-Hazy Center in Chantilly, VA.

Collection Item Summary:

The Mars Pathfinder possessed five separate antennas for cruise, landing, and surface operations during its 1997 mission. The most important of these was this high-gain antenna, providing continuous telecommunications from the lander on the Martian surface to Earth. This high-gain antenna included a mechanically-steered slotted plate with 2 degrees of freedom in pointing. It provided a nominal 125 bits per second (b/s) uplink rate and a telemetry downlink rate of approximately 600 b/s that could be monitored using the NASA Deep Space Network on Earth containing 34-meter and 70-meter dish antennas.

NASA transferred this to the Museum with the Pathfinder engineering model in 1999.

Collection Item Long Description:

Data Source

National Air and Space Museum


Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum

Credit Line

Transferred from Jet Propulsion Laboratory, California Institute of Technology


Metal, plastic, and eletronic components


Overall: 2in. x 11in. x 1ft 2in. (5.1 x 27.9 x 35.6cm)

Country of Origin

United States


SPACECRAFT-Unmanned-Parts & Structural Components

Inventory Number