NSSDCA ID: SPHE-00732
Availability: At NSSDC, Ready for Electronic Access
Time span: 1969-06-21 to 1972-12-31
This experimenter-supplied data set contains hourly averaged interplanetary count rates on one binary, IBM 360 magnetic tape. There are 4 rates for protons (1-10,>10,>30,>60 MeV) and one for alpha particles (1-10 MeV). Each logical record consists of 3120 8-bit bytes and contains data for 1 day. There are 6 logical records per physical record, and one file for each calendar year of data on the tape. Data given within each logical record include time, ephemeris data, and hourly averaged count rates for each of the five experiment counting modes. These rates have been thoroughly edited in that noise points and magnetospheric counting have been removed. Recognizably interpolated interplanetary count rate values have been inserted for magnetospheric traversal periods. The time coverage is essentially complete from June 21, 1969 to December 23, 1972 except for the period of restricted spacecraft operation (November 15, 1971 through February 1, 1972). When taken together with the corresponding data set from IMP-F (67-051A-07D), these data provide a nearly continuous record of 1 to 100 MeV interplanetary proton fluxes from May 1967 to December 1972.
In 2003, NSSDC converted these data to ascii and made them accessible via
https://spdf.gsfc.nasa.gov/pub/data/imp/imp5/particles_apl/
and added them to Omniweb.
Questions and comments about this data collection can be directed to: Coordinated Request and User Support Office
Name | Role | Original Affiliation | |
---|---|---|---|
Mr. John W. Kohl | Data Provider | Applied Physics Laboratory | |
Dr. Carl O. Bostrom | General Contact | Applied Physics Laboratory |