T wo W ide-angle I maging N eutral-atom S pectrometers (TWINS) is a NASA Explorer
Mission-of-Opportunity to stereoscopically image the Earth's magnetosphere for the first …

Abstract Two Wide-angle Imaging Neutral-atom Spectrometers (TWINS) is the first
stereoscopic magnetospheric imager. TWINS is a NASA Explorer Mission of Opportunity …

The Interstellar Boundary Explorer (IBEX) mission has recently provided the first all‐sky
maps of energetic neutral atoms (ENAs) emitted from the edge of the heliosphere as well as …

The present study observationally addresses the role of the magnetospheric substorm in the
storm‐time ring current intensification. The intensity of energetic neutral atom (ENA) …

The connection between the magnetosphere and ionosphere is particularly dynamic during
substorms. Mesoscale features in the magnetotail are consistent with substorm activity …

Ions in the plasma sheet are measured by the energetic neutral atom imagers on the Two
Wide‐Angle Imaging Neutral‐Atom Spectrometers (TWINS) spacecraft. A line of sight (LOS) …

Encircling our planet at distances of 2.5 to 8 Earth radii is a dynamic plasma population
known as the ring current (RC). During geomagnetic storms, the solar wind's interaction with …

TWINS is the first mission to perform stereo imaging of the Earth's ring current. The magnetic
storm on 22 July 2009 was at the time the largest storm observed since TWINS began …

During large geomagnetic storms (Dst≤− 100 nT), oxygen can become a significant
component of the energetic particles of the inner magnetosphere. Until recently, there were …

The remotely measured increase in plasma sheet ion temperatures during high speed
stream‐driven storms is greater than that of ICME‐driven storms. These hot ions are …