PIA16487: Low-Energy Charged Particle Instrument Assembly

Low-Energy Charged Particle Instrument Assembly


This image shows the low-energy charged particle instrument before it was installed on one of NASA's Voyager spacecraft in 1977. The instrument includes a stepper motor that turns the platform on which the sensors are mounted, so that the field of view rotates through 360 degrees. This motor was tested for 500,000 steps, enough to reach the orbit of Saturn, and has now completed over 6 million steps. The old-fashioned capacitor bank underneath the motor stores energy needed to provide a 15.7-watt pulse every 192 seconds.

Background Info:

The Voyager spacecraft were built and continue to be operated by NASA's Jet Propulsion Laboratory, in Pasadena, Calif. Caltech manages JPL for NASA. The Voyager missions are a part of NASA's Heliophysics System Observatory, sponsored by the Heliophysics Division of the Science Mission Directorate at NASA Headquarters in Washington.

For more information about the Voyager spacecraft, visit: http://www.nasa.gov/voyager and http://voyager.jpl.nasa.gov .

Cataloging Keywords:

Name Value Additional Values
Target Saturn
System Saturn
Target Type Planet
Mission Voyager
Instrument Host Voyager 1
Host Type Flyby Spacecraft
Instrument Low-Energy Charged Particle Instrument (LECP)
Extra Keywords Color
Acquisition Date
Release Date 2012-12-03
Date in Caption
Image Credit NASA/JPL-Caltech/JHUAPL
Source photojournal.jpl.nasa.gov/catalog/PIA16487
Identifier PIA16487