| definition |
- [Text from THEMIS home page, http://www.nasa.gov/mission_pages/themis/spacecraft/FGM.html ]
The Flux Gate Magnetometer (FGM) measures the background magnetic field and any low frequency (to 64 Hz) fluctuations superimposed upon it. The instrument will be used to identify and time the abrupt reconfigurations of the magnetospheric magnetic field that occur at substorm onset. For the first time, this measurement will be made on five satellites, all five THEMIS probes, aligned during substorm onset.
Group: Instrument_Details
Entry_ID: THEMIS-FGM
Group: Instrument_Identification
Instrument_Category: Solar/Space Observing Instruments
Instrument_Class: Magnetic Field/Electric Field Instruments
Short_Name: THEMIS-FGM
Long_Name: Themis Fluxgate Magnetometer
End_Group
Group: Associated_Platforms
Short_Name: THEMIS
End_Group
Online_Resource: http://www.nasa.gov/mission_pages/themis/spacecraft/FGM.html
Online_Resource: http://themis.ssl.berkeley.edu/instrument_fgm.shtml
Sample_Image: http://www.nasa.gov/images/content/168033main_FGM_with_SCM_background_med.jpg
Creation_Date: 2008-07-18
Group: Instrument_Logistics
Instrument_Owner: NASA
End_Group
End_Group
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