File: P10CPI_DIR.TXT Version: 05/13/2002 JFC ------------------------------------------------------------------------- PIONEER 10 CHARGED PARTICLE INSTRUMENT (CPI): INTERPLANETARY COUNTING RATES Principal Investigator: Professor John A. Simpson (deceased, 2000) Laboratory for Astrophysics and Space Research University of Chicago Data Contact: Dr. Clifford Lopate Laboratory for Astrophysics and Space Research University of Chicago 933 East 56th St Chicago, IL 60637 E-mail: lopate@odysseus.uchicago.edu Phone: (773)702-7672 Fax: (312)702-6645 NSSDC Contact: Dr. John F. Cooper Space Physics Data Facility Code 632, NASA Goddard Space Flight Center Greenbelt, MD 20771 E-mail: jfcooper@pop600.gsfc.nasa.gov Phone: (301) 286-1193 Fax: (301) 286-1771 Source NSSDC Data Set: 1972-012A-02D Description: These subdirectories contain interplanetary counting rates from the Pioneer 10 Charged Particle Instrument (CPI) through the end of 1992. All of these data sets include, or were extracted from, the full 15-min archival data set. The document file CPI_P10_15MIN.SFDU in that data set fully describes the Pioneer 10 mission, the CPI experiment, and the format for the 15-min data set. The file P10CPI_NMC.txt in the current directory includes information on the CPI experiment from the NSSDC Master Catalog. Data Directories: IP_15MIN_ASCII - Full archive of CPI 15-min data, ASCII format IP_1HOUR_ASCII - Selected hourly CPI count rates, ASCII format IP_1DAY_ASCII - Selected daily CPI count rates, ASCII format Related Information and Data: Further details on the spacecraft, experiment, data sets at NSSDC, and related WWW sites can be found on the Pioneer 10/11 flight project page under http://nssdc.gsfc.nasa.gov/space/ Hour averages of the interplanetary solar wind data from, and hourly heliocentric coordinates of, Pioneer 10/11 and other interplanetary spacecraft may be also be accessed and plotted on-line through the COHOWeb service based at the same WWW site as above. Acknowledgement: Use of these data in publications should be accompanied at minimum by acknowledgements of the National Space Science Data Center and the responsible Principal Investigator defined in the experiment documentation provided here.