Measure the physical conditions such as temperature, density, and dynamics in solar active regions and flares. Determine the physical mechanisms responsible for generating erupting prominences, solar flares, and coronal mass ejections (CMEs).
Solar flares and CMEs are the most energetic phenomena in the solar system and are major drivers of geomagnetic space weather storms that adversely affect ISR, precision engagement, missile detection and intercept, Comms on the Move, spacecraft anomaly assessment, orbital tracking, polar flight activities, the power grid, and ionosphere variations.
EIS: An advanced state-of-the-art extreme-ultraviolet spectrometer on the Japanese (Solar-B) Hinode spacecraft
- NRL is the EIS PI institution for NASA; EIS was built by an international consortium (US, UK, Japan, Norway) lead by the Mullard Space Science Laboratory in the UK
- EIS builds on the successful NRL/UK/Japan X-ray spectrometers on the Japanese Yohkoh (Solar-A) mission and on long-standing solar spectroscopy expertise at NRL
Hinode Mission: September 2006 Launch - present
- Hinode consists of three instruments: the EIS, a white light telescope and an X-ray telescope. The goal of Hinode is to understand the formation and evolution of the solar atmosphere
Left: Solar explosions that adversely affect the Earth’s environment occur in solar active regions. Measuring physical conditions in active regions, with a goal of quantitative understanding of solar explosions, is key for long range prediction. EIS data are also of great value for validating computer codes such as HYPERION that simulate active regions and coronal loops.