  In the present-day context, small satellites and their constellations
consisting of varying sizes (nano, micro, pico satellites) are being favored
for remote sensing and in situ probing of the heliosphere and terrestrial
magnetosphere-ionosphere system. We introduce a mission concept aimed at
concurrently observing Earth's northern and southern auroral ovals while
conducting in situ measurements of particles, fields, and temperature. The
mission concept consists of two small satellites, each having an identical
auroral X-ray imager, an in situ particle detector, a magnetometer pair, and an
electron temperature analyzer onboard in an elliptical polar orbit (400X1000 km
). This mission would assist the space weather community in primarily answering
important questions about the formation, morphology, and hemispherical
asymmetries that we observe in the X-ray aurora, the fluxes of precipitating
particles, Solar Energetic Particles, currents, and cusp dynamics. Once
realized, this would be the first dedicated twin spacecraft mission of such
kind to simultaneously study hemispheric asymmetries of solar-wind
magnetosphere coupling. This study reveals the intricacies of the mission
concept, encompassing orbital details, potential payloads, and its underlying
scientific objectives. By leveraging the capabilities of small satellites, this
mission concept is poised to make significant contributions to space weather
monitoring and research.
