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Current state of the Interhelioprobe mission

I. Zimovets 1 , L. Zelenyi 1 , V. Kuznetsov 2 & the IHP Team 1,2,… 1 Space Research Institute (IKI), Russian Academy of Sciences, Moscow, Russia 2 Institute of Earth magnetism, ionosphere and radiowaves propagation (IZMIRAN), Troitsk , Russia

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Current state of the Interhelioprobe mission

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  1. I. Zimovets1, L. Zelenyi1, V. Kuznetsov2 & the IHP Team1,2,… 1 Space Research Institute (IKI), Russian Academy of Sciences, Moscow, Russia 2 Institute of Earth magnetism, ionosphere and radiowaves propagation (IZMIRAN), Troitsk, Russia ESPM-14, Trinity College Dublin, Ireland (11:20-11:40, 08-Sep-2014) Current state of the Interhelioprobe mission

  2. Concept of the Interhelioprobe (IHP) mission • Multi-wavelength solar observations at short distances from the Sun (up to ~60RS or ~0.28 AU) • Out-of-ecliptic solar observations (up to ~30°) and from the opposite (“dark”) side • In situ measurements in the inner heliosphere (and) out of the ecliptic plane (Similar to the concept of the Solar Orbiter)

  3. General information about the Interhelioprobe mission Initial idea:IZMIRAN, IKI (mid-90s) Leading scientific organization:IKIsince April 2013 (IZMIRAN before) Principal investigators:Dr L. Zelenyi (IKI) &Dr V.Kuznetsov (IZMIRAN) Launch date:shifted from 2018 to 2022 (reserve launch in 2023) Launch by:the “Soyuz-2/1b” rocket with the “Fregat” rocket stage from Baikonur • Number of spacecraft: 1 (currently) or • 2 (under consideration, decision in 2015) • Active operation time: 5 years • Current stage:beginning of Phase C (contract signed on 28-May-2014) • drawings, development of the structural, thermal and engineering • models of the scientific instrumentation (2014-2015)

  4. General information about the Interhelioprobe mission Funding: Russian Federal Space Agency (Roscosmos) Spacecraft design:Lavochkin Research and Production Association (NPO Lavochkin) Scientific instrumentation design: IKI, IZMIRAN, NIRPhI, LPI, SINP/MSU, MEPhI, IPTI + + International collaboration (Poland, France, Germany, Czech Republic, Austria, Ukraine, UK) Scientific payload: 10 remote-sensing instruments + 9 in situ instruments Mass of the scientific payload:160 kg (with cables) Telemetry: 1 Gb/day Similar projects:SolarOrbiter - SolO, ESA(2017) Solar Probe Plus - SPP, NASA (2018) Solar Polar Orbit Radio Telescope – SPORT, China (2020?)

  5. Main stages of the Interhelioprobe flight G3. Sequence of gravity assists near the Venus 1. Launch and escape to the IP medium 2. Gravity assist near the Earth

  6. Close-to-the-Earth part of the Interhelioprobe flight Example Launch 18-Apr-2022 03:53:43 UT “Fregat” separation Δt2~15 min Inclination is 51.8° Δt1~62 min

  7. Earth-Earth-Venus part of the Interhelioprobe flight Projection to the ecliptic plane March electric propulsion system SPD-140D (OKB “Fakel”, Russia) (2 modules, xenon) Thrust direction during the active phase of the SPD-140D S Y, AU Z, AU V0 E0 E1 Y, AU X, AU X, AU E1 E0 S Z, AU ~1.25 year Without experiments V0 X, AU

  8. Characteristics of one of the probable IHP working orbits ~3.69 year 1 2 Sun 3 4 Venus 5

  9. Characteristics of one of the probable IHP working orbits

  10. Cartoon of the Interhelioprobe Ground Segment Max Scientific traffic~1 GB/day at rates up to 1 Mbit/s (distance dependant) FOC Flight Operation Center – NPO Lavochkin, Khimki, Moscow Region Ballistic Operation Center – Keldysh Institute of Applied Mathematics, Moscow Science Operation Center – IKI, Moscow BOC SOC SOC X-band X-band BOC FOC “MedvezgyiOzera” 64 m antenna “Ussuriysk” 70 m antenna

  11. Interhelioprobe spacecraft raw model Heat shield with windows Scientific payload module Engine module High-gain antenna

  12. Scientific goals of the IHP and instruments of their achievement

  13. Instruments for remote observations of the Sun

  14. Instruments for local (in situ) measurements

  15. Interhelioprobe coverage of electromagnetic emission Interhelioprobe coverage of corpuscular emission

  16. Preliminary location of scientific instruments on the spacecraft SORENTO HELIOMAG PING-M RSD PHOTOSKOP TAHOMAG HELIOSPHERA TREK IMVE HELIES

  17. Solar Orbiter payload Interhelioprobe payload From Muller et al. (Sol. Phys., 2012)

  18. Thank you! SPORT SolO SPP

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