This directory groups data from the multiple Interplanetary Monitoring 
Spacecraft (IMP) spacecraft (from IMP 4 through  IMP-8).  
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Related data and directories:
SPDF Data and Orbits Services <http://spdf.gsfc.nasa.gov/>
NSSDC Master Catalog <http://nssdc.gsfc.nasa.gov/nmc/sc-query.html>

NSSDC/SPDF Contact: Natalia Papitashvili <Natalia.E.Papitashvili.1@gsfc.nasa.gov>,
 <request@mail630.gsfc.nasa.gov>

Please acknowledge NASA's National Space Science Data Center and
 Space Physics Data Facility, for data usage.

Authorizing NASA Official: Dr. R.E. McGuire, Head, SPDF, NASA Goddard Space Flight Center
                        301-286-7794, e-mail:  Robert.E.McGuire@nasa.gov
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