Twinssr_FirstLight.jpg


Summary

Description
English: First Stereo ENA Image. This is a first-light stereo ENA image of the terrestrial ring current obtained by TWINS on 15 June 2008 for 10 keV energy. Visible in each image are both low-altitude emissions (LAE) from precipitating ions, and high-altitude ring current emissions (RCE). For reference, the Earth's limb is drawn in, along with dipole magnetic field lines at four cardinal local times (noon=red, dusk=lavender, midnight, and dawn) and two L-values (L=4 and L=8).
Source The TWINS images are public domain images from the NASA TWINS mission. These images are freely available to anyone at http://twins.swri.edu/ . The annotation was added by Jerru
Author Jerru created this file. It is an annotated version of public domain data from NASA.

Licensing

Public domain This file is in the public domain in the United States because it was solely created by NASA . NASA copyright policy states that "NASA material is not protected by copyright unless noted ". (See Template:PD-USGov , NASA copyright policy page or JPL Image Use Policy .)
Warnings: