6 3.6 Mev 703 TIE× 4.5 MeV 03 5 6 MeV 10 electrons/cm2-s-sr-Mev 100 2012-09-10 2012-09-20 2012-09-30 Fig.1.Energetic electron data from the Radiation Belt Storm Probes (RBSP)satellites in eccentric orbits around the Earth showing several discrete energy channels of the Relativistic Electron-Proton Telescope (REPT)instruments on board the spatially separated RBSP-A and RBSP-B spacecraft.Each panel's vertical axis is the L*parameter which is effectively the distance in Earth radi at which a magnetic field line crosses the magnetic equatorial plane.The horizontal axis is time from 1 September 2012 to 4 October 2012.Electron differential flux values (in units of electrons/cm--s-sr-MeV)are in a color- coded logarithmic scale as shown to the right of the figure.(A)Electrons in the energy range3.2≤E≤4.0MeV.(B)Electrons with4.0sEs5.0MeV.(c)Electrons with5.0≤E≤ 6.2 MeV. Sciencexpress/http://www.sciencemag.org/content/early/recent/28 February 2013/Page 4/10.1126/science.1233518/ http://www.sciencemag.org/content/early/recent / 28 February 2013 / Page 4 / 10.1126/science.1233518 Fig. 1. Energetic electron data from the Radiation Belt Storm Probes (RBSP) satellites in eccentric orbits around the Earth showing several discrete energy channels of the Relativistic Electron-Proton Telescope (REPT) instruments on board the spatially separated RBSP-A and RBSP-B spacecraft. Each panel’s vertical axis is the L* parameter which is effectively the distance in Earth radii at which a magnetic field line crosses the magnetic equatorial plane. The horizontal axis is time from 1 September 2012 to 4 October 2012. Electron differential flux values (in units of electrons/cm2 -s-sr-MeV) are in a color￾coded logarithmic scale as shown to the right of the figure. (A) Electrons in the energy range 3.2 ≤ E ≤ 4.0 MeV. (B) Electrons with 4.0 ≤ E ≤ 5.0 MeV. (C) Electrons with 5.0 ≤ E ≤ 6.2 MeV. on March 6, 2013 www.sciencemag.org Downloaded from