The BepiColombo Mission
description
Transcript of The BepiColombo Mission
May 2008 [email protected] / 14
Overview & Status
byJohannes Benkhoff (HEWG/SERENA Meeting - 12. May 2008)
The BepiColombo Mission
May 2008 [email protected]
Mercury Planetary Orbiter (MPO)• focus on surface and interior science• built under ESA responsibility (~800kg) • 11 science instruments/instrument suites
MPO
MMO illustrated by Alex Luktus
Mercury Magnetospheric Orbiter (MMO)• focus on the planetary environment• built under JAXA responsibility (~250kg)• 5 instrument suites
BepiColomboESA – JAXA mission to explore Mercurynamed after Prof. Giuseppe (Bepi) Colombodual spacecraft mission:
May 2008 [email protected]
BepiColombo industrial contract signature
Press event, Friedrichshafen, 18 January 2008
MPO Mercury Planetary Orbiter
MMO Mercury Magnetospheric Orbiter
Sunshield
MTMMercury Transfer Module
BepiColombo (Cruise) Configuration
May 2008 [email protected]
Mission BaselineNote: currently under review !!
m
SV M E
E
M
NECP
Cruise
MercuryOrbits• Launch: August 2013 (2014 back-up)
• 6 year cruise to Mercury by electric propulsion
• Earth, Venus, Mercury fly-by’s/gravity assists
• Arrival at Mercury: August 2019
• Gravity capture into Mercury orbit / Final Mercury orbit adjustment by chemical propulsion
• Injection of the MPO and MMO into their respective orbits by chemical propulsion
• Science operations: 1 year nominal plus 1 year extended
May 2008 [email protected]
Coverage < 500 km:
HR chemistry (X, gamma/neutron)HR Imagery, HR spectrometrygeodesy, altimetry
BepiColombo MPO: global
Messenger 2011 e=0,73
MPO 2019 e = 0,16 2,3 hours
60° N,12 h
MMO e=0.66 9,2 h
Data rates (average bit rate):
MMO : 3,5 kbits/s MPO : 70 kbits/s
BepiColombo at Mercury
May 2008 [email protected]
• Origin and evolution of a planet close to its parent star
• Mercury as a planet - form, interior, structure, geology, composition and craters • Mercury's exosphere composition and dynamics
• Mercury's magnetized envelope (magnetosphere): structure and dynamics • Origin of Mercury's magnetic field
• Test of Einstein's theory of general relativity
BepiColombo – Science Objectives
D(ln G)/dt
J2 of the Sun
May 2008 [email protected]
to fulfill the scientific objectives, one needs …
- comprehensive, highest resolution global coverage of the planet
- thermal infrared images, to determine surface composition and create global temperature maps
- high quality measurements of Mercury’s gravity field (planet interior, test of Einstein’s theory)
- high-detail measurements of the plasma and particle environment
- double-point measurements around the planet, to better understand the structure and dynamics of the environment around Mercury
May 2008 [email protected]
Scientific themes• Surface - topography, morphology, composition• Interior – state of the core, composition, magnetic field
• Exosphere – composition, dynamics, surface release
• Magnetosphere - structure, dynamics, composition
Internal magnetic field:- Structure and distribution, Origin and internal structure
Magnetosphere- Structure, Kinetics, processes
Atmosphere-Structure, variations, production from surface, loss to solar wind
Surface Crust- Present structure, status, evolution
Interplanetary plasma and dust
MPO
MMO
May 2008 [email protected]
Scientific Payload MPO
SIXS Solar Intensity X-ray and particle spectrometerMonitor solar X-ray intensity and solar particles
PI: Juhani Huovelin (Finland)
SIMBIO-SYS: HIRC, STC, VIHI Spectrometers and Imagers for MPO
High resolution and stereo imaging, Near-IR (<2.0μm) imaging spectroscopy for global mineralogical mapping
PI: Enrico Flamini (Italy)
BELA BepiColombo Laser Altimeter Topographic mapping
PIs: Tilman Spohn (Germany) Nicolas Thomas (Switzerland)
ISA Italian Spring AccelerometerNon–gravitational accelerations of the spacecraft
PI: Valerio Iafolla (Italy)
May 2008 [email protected]
Scientific Payload MPO
MIXS Mercury Imaging X-ray SpectrometerElemental surface composition, global mapping and composition of surface features
PI: George Fraser (United Kingdom)
MPO/MAG Magnetic Field Investigation Detailed description of planetary magnetic field, its source and interaction with the solar wind
PI: Karl-Heinz Glassmeier (Germany)
MGNS Mercury Gamma-Ray and Neutron Spectrometer Elemental surface and sub-surface composition, volatile deposits on polar areas
PI: Igor Mitrofanov (Russia)
MORE Mercury Orbiter Radio Science Experiment Core and mantle structure, Mercury orbit, fundamental science,
gravity field PI: Luciano Iess (Italy)
May 2008 [email protected]
Scientific Payload MPO SERENA:
Elena, MIPA, Search for Exospheric Refilling and Emitted PICAM, Strofio Natural Abundances
In-situ study of composition, vertical structure and source and sink processes of the exosphere
PI: Stefano Orsini ( Italy)
PHEBUS Probing of Hermean Exosphere by UltravioletSpectroscopyUV spectral mapping of the exosphere
PI: Eric Chassefière ( France)
MERTIS Mercury Radiometer and Thermal ImagingSpectrometer
Global mineralogical mapping (7-14 µm), surfacetemperatures and thermal inertiaPI: Harald Hiesinger ( Germany)
May 2008 [email protected]
MPO Payload Resources
Experiment
Mass [kg]
Power (allocated)
[W]
Power (Orbit Average)
[W]
Power (max) [W]
BELA 12 49 49 75
ISA 5.3 6 8 12
MPO/MAG 1.8 5 4.6 5.3
MERTIS 3.3 8 11 19.5
MIXS 7.3 12 18 34
MGNS 5.2 4 4 5
MORE 3.5 30 35 35
PHEBUS 6.6 4 5.4 25
SERENA 5.4 21 21 28
SIMBIO-SYS
8.3 23 23 34
SIXS 1.3 2 2.7 5.4
TOTAL 60 164 182 279
May 2008 [email protected]
Scientific Payload MMO (23.6 kg, 48.5 W ) MGF Magnetic Field Investigation studies magnetic field from(2 sub-units) the planet, magnetosphere, and interplanetary solar wind.
MPPE Mercury Plasma Particle Experiment studies plasma (7 sub-units) & neutral particles from the planet, magnetosphere, and
interplanetary solar wind.
PWI Plasma Wave Investigation studies electric field,(7 sub-units) electromagnetic waves, and
radio waves from magnetosphereand solar wind.
MSASI Mercury Sodium Atmosphere
Spectral Imager studies the thinsodium atmosphere.
MDM Mercury Dust Monitor studiesdust from the planet andinterplanetary & interstellar space.
May 2008 [email protected]
BC Ground Segment set-up: Science Phase
BCMOC
JAXA MOC
MPO PI
ESA Network
JAXA Network
DSN
RSE PI
MMO
MPO
JAXA SOC
MMO PI
BCSGS
BCSOC
May 2008 [email protected]
Status:
Payload is in a reasonable good shape / Instrument Preliminary Design reviews ongoing
Spacecraft activities in 2008 focused on procurement and build-up of complete industrial team, in preparation for System Preliminary Design Review (PDR).
Significant dry mass growth of the whole system (MTM, MPO, MMO, and MOSIF Sunshield) forced the Project to setup a “Tiger Team” to consolidate the system design and to review the mission baseline.
System PDR will be held at the end of 2008
May 2008 [email protected]
…BepiColombo will contribute to a better understanding of the evolution of the innermost, least known planet Mercuryand of the evolution of ourSolar System