Average configuration of the distant (less than 220-earth-radii) magnetotail - Initial ISEE-3 magnetic field results

Details Average configuration of the distant (less than 220-earth-radii) magnetotail - Initial ISEE-3 magnetic field results Average configuration of the distant (less than 220-earth-radii) magnetotail - Initial ISEE-3 magnetic field results

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983georl..10..973s&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 10, Oct. 1983, p. 973-976. NASA-supported research.

Physics

87

Geomagnetic Tail, International Sun Earth Explorer 3, Magnetic Field Configurations, Magnetic Measurement, Neutral Sheets, Spacecraft Trajectories

Scientific paper

Magnetic field measurements from the first two passes of the ISEE-3 GEOTAIL Mission have been used to study the structure of the trans-lunar tail. Good agreement was found between the ISEE-3 magnetopause crossings and the Explorer 33, 35 model of Howe and Binsack (1972). Neutral sheet location was well ordered by the hinged current sheet models based upon near earth measurements. Between X = -20 and -120 earth radii the radius of the tail increases by about 30 percent while the lobe field strength decreases by approximately 60 percent. Beyond X = -100 to -1200 earth radii the tail diameter and lobe field magnitude become nearly constant at terminal values of approximately 60 earth radii and 9 nT, respectively. The distance at which the tail was observed to cease flaring, 100-120 earth radii, is in close agreement with the predictions of the analytic tail model of Coroniti and Kennel (1972). Overall, the findings of this study suggest that the magnetotail retains much of its near earth structure out to X = -220 earth radii.

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