Resonance project and active experiments

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Gerard Hutchinson
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1 Resonance project and active experiments A. G. Demekhov Institute of Applied Physics, Nizhny Novgorod, Russia M. M. Mogilevsky, L. M. Zelenyi Space Research Institute, Moscow, Russia RBSP SWG Meeting, JHU APL May 23, 2011

2 Summary Parameters of the Resonance mission Proposed active experiments Cooperation with RBSP

3 Main topics for the Resonance project Origin of discrete and noise-like emissions and their interrelationship Acceleration and losses of energetic particles by wave-particle interactions Ring current formation and decay Hot and cold plasma interface; subauroral electric fields Magnetosphere-ionosphere interaction

and on the ground The orbits of two spacecraft pairs glide for about 2 hours along the

4 This orbit will provide an opportunity of correlated long-term measurements of the phenomena linked to this flux tube in the generation region and at other points in space and on the ground The orbits of two spacecraft pairs glide for about 2 hours along the same selected magnetic flux tube corotating with the Earth. Magnetosynchronous orbit Project RESONANCE

5 ~ 1-10 km ~ km ~ km RESONANCE 1А and 1В RESONANCE 2А and 2В Strategy of measurements: two PAIRS of satellites will be launched on the same orbits. The distance between satellites of one pair can be controlled by TC. Second GDRE "Cosmophysic" Workshop, Touluose, 2009 Ω R Resonance Mogilevsky et al. (2010)

6 First pair (1A/1B) Second pair (2A/2B) Preliminary schedule of spacecraft separation 1 phase (6-9 months s after the launch) 2 phase (9-18 months s after the launch) 3 phase (18-27 months s after the launch) 4 phase (27-36 months s after the launch) 1-10 km 1-10 km 1-10 km km km km km km Second GDRE "Cosmophysic" Workshop, Touluose, 2009 Mogilevsky et al. (2010)

7 Scientific equipment (1) EM field and waves measurements Flux-gate magnetometer 3 components of B field, DC 10 Hz (max bit-rate = 2.1 kbaud) ULF electric field receiver 3 components of E field, DC 10 Hz (max bit-rate = 1.4 kbaud) VLF receiver 3 electric and 3 magnetic components of EM field, 10 Hz 20 khz (max bit-rate = 5.76 Mbaud) HF receiver 3 electric and 3 magnetic components of EM field, 5kHz 10 MHz (max bit-rate = 2.16 Gbaud) Mutual impedance probe 10 khz 10 MHz Space radio interferometer 5-10 MHz Ω R Р Е З О Н А Н С R E S O N A N C E Mogilevsky et al. (2010)

Scientific equipment (2) Plasma and particles measurements Cold plasma measurements 0 20 ev Suprathermal plasma measurements 3D electrons Suprathermal plasma measurements 3D ions and composition 10

8 Scientific equipment (2) Plasma and particles measurements Cold plasma measurements 0 20 ev Suprathermal plasma measurements 3D electrons Suprathermal plasma measurements 3D ions and composition 10 ev 15 kev 10 ev 15 kev Fast electron analyzer 5 kev 50 kev Energetic particle analyzer 10 kev 100 kev Ring current particle measurements 20 kev 1 MeV Measurements of radiation belt particles 100 kev 10 MeV Ω R Mogilevsky et al. (2010) Р Е З О Н А Н С R E S O N A N C E

9 Active experiments vs Resonance mission Long-term (0.5 3 hr) multi-spacecraft observations in the flux tube conjugated with a heater (HAARP) Any magnetospheric effect of the heater operation (e.g., ULF/ELF/VLF waves, energetic particle modification, cold plasma updraft) can be studied in detail Control of heater operation based on transmitted Resonance data For example, information on natural emissions in the magnetosphere can be useful to choose the modulation frequency Artificial feedback in the magnetosphere-ionosphere interaction? Modulating the ionospheric reflection in-phase with the precipitated electron/proton flux can amplify the relaxation oscillations of the cyclotron instability Problem: we need to be lucky to fit in an active flux tube Question: can we activate the tube we are in?

10 Scheme of a joint experiment with a ground-based heater 1 Earth, 2 ionosphere, 3 heated ionosphere region, 4 magnetic flux tube, 5 TM line, 6 satellite, 7 trajectories of particles and guided waves Resonance project Artificial feedback experiment

11 Co-operation with RBSP Similar objectives Compatible data sets Complementary orbits

RESONANCE Project for Studies of Wave-Particle Interactions in the Inner Magnetosphere. Anatoly Petrukovich and Resonance team

RESONANCE Project for Studies of Wave-Particle Interactions in the Inner Magnetosphere Ω Anatoly Petrukovich and Resonance team РЕЗОНАНС RESONANCE Resonance Inner magnetospheric mission Space weather Ring