Validation and Interpretation of a Three-dimensional Configuration of a Magnetic Cloud Flux Rope

Abstract One strong magnetic cloud (MC) with a field magnitude reaching ?40 nT at 1 au during 2012 June 16–17 is examined in association preexisting flux rope (MFR) identified on the Sun. The MC characterized by quasi-three-dimensional (3D) model based situ measurements from Wind spacecraft. contents of and other parameters are quantified. In addition, correlative study corresponding same structure crossed Venus Express (VEX) spacecraft heliocentric distance 0.7 an angular separation ?6° longitude performed to validate modeling results. spatial variation between VEX attributed 3D configuration appearing as knotted bundle flux. A comparison MFR Sun indicates that reconnection process accompanying M1.9 flare may correspond lines rooted opposite polarity footpoints. Such reduces amount axial erupted rope, approximately 50%, this case.