SPS Effects on Optical and Radio Astronomy

CONTENTS Page INTRODUCTION AND SUMMARY............................................ vil WORKSHOP OPENING STATEMENT ........................................ xix INTRODUCTION .................................................................................................... 1 BRIEFING DOCUMENT ........................................................................................... 9 INTRODUCTION ........................................................................................... 11 GENERAL CHARACTERISTICS OF THE SPS REFERENCE SYSTEM . . . 12 SATELLITE OPTICAL EFFECTS ................................................................ 13 A. DIFFUSE REFLECTION ................................................................ 13 B. SPECULAR REFLECTION OF SUNLIGHT .............................................. 14 C. DIFFUSE SKY BRIGHTNESS................................................................. 15 D. SATELLITE THERMAL INFRARED EMISSION ..................................... 17 E. IONOSPHERIC INFRARED AND OPTICAL EMISSIONS ... 17 RADIO EFFECTS..................................................................................................... 19 A. SATELLITE MAIN POWER BEAM................................................................. 19 B. SATELLITE HARMONIC RADIATION .............................................. 20 C. SATELLITE NOISE RADIATION ....................................................... 20 D. RECTENNA POWER BEAM SCATTERING .............................................. 22 E. RECTENNA HARMONIC RADIATION .............................................. 22 F. RECTENNA NOISE RADIATION ....................................................... 22 APPENDIX A - TIME-VARYING BRIGHTNESS OF THE SOLAR COLLECTING ARRAY 24 INVITED PRESENTATIONS ON SPS EFFECTS ON OPTICAL ASTRONOMY ... 27 LIMITATIONS OF THE BRIEFING DOCUMENT'S CHARACTERIZATION OF THE SPS REFERENCE SYSTEM - G. M. Stokes........................................................ 29 COMMENTS ON THE EFFECTS OF INCREASED DIFFUSE SKY BRIGHTNESS ON FAINT OBJECT ASTRONOMICAL OBSERVATIONS - J. S. Gallagher and S. M. Faber 33

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