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1-Hour averaged magnetic field data for all orbit phases

NSSDCA ID: SPHE-00873

Availability: At NSSDC, Ready for Electronic Access

Description

It has annual files of hourly IMP 8 magnetic field averages, in ASCII format, computed at NSSDC from 15-s resolution data provided by the GSFC magnetometer team and accessible at: http://nssdc.gsfc.nasa.gov/ftphelper/mag15s.html.

The spacecraft position values (words 5-9), the field intensity (word 10) and the GSE and GSM cartesian components (words 14-18) were computed from corresponding 15-sec values. Data for 00:00- 01:00 were used for the first hourly average of the day. Words 11-13 were computed from the hourly averaged GSE cartesian components. The number of points is the number of 15-s values (themselves averages) contributing to the hourly average. The sigma's (standard deviations) carry no memory of the sigma's in the 15-s averages.

The hourly averages of this time ordered data set represent, unseparated, the solar wind, magnetosheath and magnetotail phases of each ~12-day IMP orbit. Every hour is represented; those for which there are no IMP data have fill values in their data words.

A solar wind version of this data set is available as data set SPHE-00874.

These data are accessible on-line at: https://spdf.gsfc.nasa.gov/pub/data/imp/imp8/mag/1hr_ascii/

These data are also accessible with graphical display and listing capability and with time and parameter subsetting capability at: http://nssdc.gsfc.nasa.gov/ftphelper/imp8_mag_hr.html

Alternate Names

  • 1-HR AVGS, ASCII,ALL ORBIT PHASES

Discipline

  • Space Physics: Heliospheric Studies

Old NSSDCA ID

  • 73-078A-01R

Additional Information

Spacecraft

Experiments

Questions and comments about this data collection can be directed to: Dr. Natalia E. Papitashvili

 

Personnel

NameRoleOriginal AffiliationE-mail
Dr. Joseph H. KingGeneral ContactNASA Goddard Space Flight Centerjoseph.h.king@nasa.gov
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