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We present an investigation of an eruption event of coronal mass ejection(CME) magnetic flux rope (MFR) from source active region (AR) NOAA 11719 on 11April 2013 utilizing observations from SDO, STEREO, SOHO, and WIND spacecraft.The source AR consists of pre-existing sigmoidal structure stacked over afilament channel which is regarded as MFR system. EUV observations of lowcorona suggest a further development of this MFR system by added axial fluxthrough tether-cutting reconnection of loops at the middle of sigmoid under theinfluence of continuous slow flux motions during past two days. Our studyimplies that the MFR system in the AR is initiated to upward motion bykink-instability and further driven by torus-instability. The CME morphology,captured in simultaneous three-point coronagraph observations, is fitted withGraduated Cylindrical Shell (GCS) model and discerns an MFR topology withorientation aligning with magnetic neutral line in the source AR. This MFRexpands self-similarly and is found to have source AR twist signatures in theassociated near Earth magnetic cloud (MC). We further derived kinematics ofthis CME propagation by employing a plethora of stereoscopic as well as singlespacecraft reconstruction techniques. While stereoscopic methods performrelatively poorly compared to other methods, fitting methods worked best inestimating the arrival time of the CME compared to in-situ measurements.Supplied with values of constrained solar wind velocity, drag parameter and 3Dkinematics from GCS fit, we construct CME kinematics from the drag based modelconsistent with in-situ MC arrival.

A Full Study on the Sun-Earth Connection of an Earth-Directed CME Magnetic Flux Rope