THEMIS ESA SWG ESA-1 UCB, Dec 20, 2008

ESA STATUS

J. McFaddenUC Berkeley SSL

THEMIS ESA SWG ESA-2 UCB, Dec 20, 2008

ESA Instrument Papers

Both ESA instrument paper are published.

If you are using ESA data, review these papers for all the caveats regarding ESA data.

THEMIS ESA first science results and performance issues, McFadden, J.P., Carlson, C.W., Larson, D., Bonnell, J., Mozer, F., Angelopoulos, V., Glassmeier, K.-H., Auster, U. Space Sci. Rev., 2008.

The THEMIS ESA plasma instrument and in-flight calibration McFadden, J.P., Carlson, C.W., Larson, D., Angelopoulos, V., Ludlam, M., Abiad, R., Elliott, B., Turin, P., Marckwordt, M. Space Sci. Rev., 2008

THEMIS ESA SWG ESA-3 UCB, Dec 20, 2008

iESA Relative Calibration

TH-D[0.881499, 0.960724, 0.982417, 1.02190 , 1.06730 , 1.05802 , 1.06450 , 0.963637] [0.879061, 0.961538, 0.985881, 1.02784 , 1.06654 , 1.05243 , 1.05915 , 0.967562]After MCP change on '2008-02-16/18:24'

TH-E[0.906547, 1.00666 , 1.01532 , 1.06311 , 1.07316 , 1.03474 , 0.995052, 0.905405][0.896659, 0.993430, 1.01416 , 1.07099 , 1.07492 , 1.04506 , 1.00283, 0.901947]After MCP change on '2007-12-12/22:32'

THEMIS ESA SWG ESA-4 UCB, Dec 20, 2008

eESA Relative Calibration

TH-D[0.947797, 1.02138 , 1.04150 , 1.00278 , 1.00528 , 1.04512 , 1.00240 , 0.933748][0.947908, 1.01053 , 1.03561 , 1.00200 , 1.00517 , 1.04226 , 1.00898 , 0.947533]After MCP change on '2008-02-16/18:24'

TH-E[0.953314, 1.04990 , 1.04388 , 1.00491 , 0.979858, 1.01070 , 1.02966 , 0.927782][0.933908, 1.03409 , 1.03260 , 1.00186 , 0.984941, 1.01620 , 1.04454 , 0.951867]After MCP change on '2007-12-12/22:32'

THEMIS ESA SWG ESA-5 UCB, Dec 20, 2008

Electron ESA

THEMIS ESA SWG ESA-6 UCB, Dec 20, 2008

Electron ESA

THEMIS ESA SWG ESA-7 UCB, Dec 20, 2008

Electron ESA

THEMIS ESA SWG ESA-8 UCB, Dec 20, 2008

Frozen In

THEMIS ESA SWG ESA-9 UCB, Dec 20, 2008

Frozen In

THEMIS ESA SWG ESA-10 UCB, Dec 20, 2008

Breaking Frozen In

THEMIS ESA SWG ESA-11 UCB, Dec 20, 2008

Breaking Frozen In

THEMIS ESA SWG ESA-12 UCB, Dec 20, 2008

Breaking Frozen In

THEMIS ESA SWG ESA-13 UCB, Dec 20, 2008

Measuring Currents

THEMIS ESA SWG ESA-14 UCB, Dec 20, 2008

Measuring Currents

THEMIS ESA SWG ESA-15 UCB, Dec 20, 2008

Measuring Currents

THEMIS ESA SWG ESA-16 UCB, Dec 20, 2008

Measuring Currents

dB = u0 * J * dx

dB = 4pi*100nT *m/A * J * dx

dB = 10 nT

J = ne(Vi-Ve)

J = .1/cc * 1.6e-19 * 800 km/s = 1.3e-8 A/m2

dx ~ 620 km

gyroradius of 30 keV proton in 28nT field = 880 km

Total potential drop 620 km x 10mV/m ~ 6 kV