Argonne Magnetospheric Effects of SPS

Report Cover	1
Title Page	3
Table of Contents	5
I. Introduction	7
II. Emisson Models	10
A. COTV Ion Engine Exhaust	11
B. POTV Chemical Engine Exhaust	14
III. Argon Ion Engine Exhaust In Magnetosphere	19
A. Argon Ion Precipitation Near LEO	20
B. Beam-Magnetosphere Interactions	21
C. Further Fate of Argon Ions	37
IV. Magnetospheric Effects of Argon Plasma Exhaust	39
A. Artificial Airglow and Optical Earth-Sensor Interference	39
B. Artificial Ionospheric Current	45
C. Thermospheric Heating	47
D. Plasmaspheric Heating	49
E. Ring Current Modifications	53
F. Radiation Belt Modification	58
G. Plasma Instabilities and Effects on Space Communications	62
V. Chemical Engine Exhaust In Magnetosphere	69
A. Reduction of Ring Current Lifetime	69
B. Intensification of Geocorona	76
VI. Coordination With Experiments	78
VII. Summary of Magnetospheric Effects	81
VIII. Recommendations	85
References	88
Figure Captions	92
Appendix: Magnetosphere	113

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