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Motion of the MMS Spacecraft Relative to the Magnetic Reconnection Structure Observed on 16 October 2015 at 1307 UTWe analyze a magnetopause crossing by the Magnetospheric Multiscale (MMS) spacecraft at 1307 UT on 16 October 2016 that showed features of electron-scale reconnection. For this event, we find orthonormal LMN coordinates from the magnetic field, with N and L varying respectively along the maximum gradient and maximum variance directions. We find the motion along N from the Spatio-Temporal Difference analysis and motion along L from measured particle velocities. We locate the position of the magnetic X point, finding that MMS-4 passed within about 1A km from the X point and that MMS-3 and MMS-2 passed within about 1.7 km and 2.4 km, respectively, from the position of maximum out of plane current.
Document ID
20170003527
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Denton, R. E. (Dartmouth Coll. Hanover, NH, United States)
Sonnerup, B. U. O. (Dartmouth Coll. Hanover, NH, United States)
Hasegawa, H. (Japan Aerospace Exploration Agency Sagamihara, Japan)
Phan, T. D. (California Univ. Berkeley, CA, United States)
Russell, C. T. (California Univ. Los Angeles, CA, United States)
Strangeway, R. (California Univ. Los Angeles, CA, United States)
Giles, B. L. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Gershman, D. (Maryland Univ. College Park, MD, United States)
Torbert, R. B. (New Hampshire Univ. Durham, NH, United States)
Date Acquired
April 17, 2017
Publication Date
June 6, 2016
Publication Information
Publication: Geophysical Research Letters
Volume: 43
Issue: 11
ISSN: 0094-8276
Subject Category
Geophysics
Numerical Analysis
Report/Patent Number
GSFC-E-DAA-TN41268
Funding Number(s)
CONTRACT_GRANT: NNG11PL02A
CONTRACT_GRANT: NNX14AC38G
Distribution Limits
Public
Copyright
Other