Freja - Electric Field Experiment (EFE)


PI of the experiment or contact person Goran T. Marklund
Institute of the PI or of the contact person (country) KTH       (SWE)
E-mail of the PI or of the contact person marklund@plasma.kth.se
Type of experiment 3 pairs of spherical probes of diameter 6 cm, mounted on the spin plane;
two of these pairs were 30 meters apart, and the third 20 meters apart, tip to tip
References about the experiment The Double Probe Electric Field Experiment on Freja :
Experiment Description and First Results (E28.1)
Link(s) to Web site(s) http://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=1992-064A&ex=1
Start experiment operation (dd-mm-yyyy) 06-10-1992
End experiment operation (dd-mm-yyyy) 11-07-1996
Lifetime of the experiment (month) 45
Highest data rate 30.7 kbps
Preliminary results On intense diverging electric fields associated with black aurora (R28.1)
Measured data (k, w, Bo, E(t), B(t), polarisation, Vphase, ...) DC and AC electric field vectors
Data range 0.03 mV/m - 1 V/m
Sensitivity 0.03 mV/m
Time resolution 6 s
Sampling rate 6144 samples per second
Data formats and supports Online
Location of the data AL-RIT       (SWE)
References about the data ?????
High-resolution data (support, place, contact) Per-Arne Lindqvist
lindqvist@plasma.kth.se