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AE-B (Explorer32) Ion Mass Spectrometer Data

This home page provides access to data from AE-B ion mass spectrometer experiment for the time period from June 9, 1966 to January 17, 1967 in ASCII format. The altitude range covered by the data is 274 to 2840 km. Each measurement cycle includes six density measurements: N+, O+, He+, H+ and again N+, O+. Each data record lists the density and orbit parameters for one specific density measurement. The ASCII data set also contains needed spacecraft position data, IGRF model parameters, and indices.

Time Resolution: about 3.5 minutes

This data set and its description are located at SPDF's FTP site

Time spans of data set: 1966-06-10 - 1967-01-17
Note: There are many data gaps within these time spans


Please enter your selections and then click on the Submit button.

*Select an activity
    Plot data List data Create file

* Enter start and stop dates: year,month,day(YYYYMMDD)
   Start time    Stop time

* Select Ion
N+   O+   He+   H+  

* Select variables (User can restrict the allowable range by entering low/high parameter values)
Variable Name Format of
ASCII files
Optional values:
Low    High
Local Time in decimal hours F5.2   
Solar zenith angle,deg. F7.2   
Geodetic Latitude, Degrees F6.2   
Geodetic Longitude, Degrees F6.1   
Geomagnetic Latitude, Degrees F6.2   
Geomagnetic Longitude , Degrees F6.1   
Altitude,km F6.1   
Dip - Magnetic inclination, deg. F6.2   
Dip Latitude, deg. F6.2   
L-shell F5.2   
3-hourly Ap magnetic index I3   
3-hourly Kp magnetic index I2   
F10.7 - Daily solar radio flux I3   
R - Daily sunspot number I3   
Ion Density, cm-3
     for the selected ion
E10.4   
Current, Ampers
     for the selected ion
E8.2   
VS, Volts F5.2   


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NASA Official: Dr. Robert McGuire, Head of the Space Physics Data Facility