IBEX Splinter Meeting IGPP Honolulu

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IBEX Splinter MeetingIGPPHonolulu
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Welcome

• Our science meetings are open to everyone

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Agenda (Day 1)

• 100 - 130 PM IBEX Overvew (McComas)
• 130 - 215 PM IBEX Technical Overview (Scherrer)
• 215 - 235 PM Break
• 235 - 300 PM NASA Update (Christian)
• 300 - 400 PM IBEX-Lo Update (Fuselier)
• 400 - 440 PM IBEX-Hi Update (Funsten)
• 440 - 510 PM Interstellar Neutral Observing
  (Moebius)
• 510 - 530 PM IBEX Website Discussion (Reno)
• 530 - 600 PM IBEX E/PO Update (Bartolone)

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Agenda (Day 2)

• 8 840 AM IBEX Operations (C. Reno)
• 840 10 AM IBEX Data Analysis Plan (Discussion
  lead by C. Reno)
• Break
• 1020 Noon Focus Discussion Topic Implications
  of Voyager observations for IBEX (Discussion lead
  by Ed Roelof and George Gloeckler)
• Noon 130 Lunch
• 130 230 PM Focus Discussion Topic ENA space
  to phase space, tools for IBEX closure
  (Discussion lead by Marti Lee, Chelle Reno and
  Nathan Schwadron)
• 230 4 PM Focus Discussion Topic Inferring
  Global Heliosphere Structure from IBEX ENA
  Observations (Discussion lead by Mike Gruntman
  and Vlad Izmodenov)
• Break
• 415 545 PM
• Coordinated Investigation Program within the
  International Heliophysical Year (E. Mobius, S.
  Suess and J. Davila)

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Discussion

• Action Items
• Decisions (Consensus)
• Major Points

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Issues

• How do we represent our data and simulations?
• What is discernable over IBEX Energy bands?
• Up versus down asymmetries, recorded over days
  to weeks to years
• Legendre expansions of maps
• North/South asymmetry implications?
• Nose/Tail asymmetry implications?
• Difference between Nose and Tail symmetry axis?
• Knee of the energy distribution?
• o With current energy resolution, can we
  determine the position of the knee?
• o What is the global distribution of the knee in
  the distribution?
• What is the energy partition?
• o Can we see both the pickup ion and solar wind
  distribution?

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Example of Reference Frame/Plotting Style

• Provided by Jacob Heerikhuisen

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Aries
Solar Distance vs.
Heliospheric Windward
Longitude (? ?He, SE)
Suggestion for IBEX Coordinate System (J. Cooper)
Xena 38 - 98 AU (557 y)
V-2
Sedna 76 902 AU (11,872 y)
N
P-11
U
P
LISM He Flow
V-1
P-10
J
S
R (AU)
Solar Ecliptic FHe 253.9 ?He
5.6
J. F. Cooper IGPP Waikiki 2006
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Action Items

• The IBEX Book start thinking
• Other meetings planning (Dave working with Peter
  Wurz .. Fall)
• Chelle Detailed methodology, look-up table, and
  flexibility in data collection on Lo captured in
  Mission Ops.
• Chelle Data plot with spin-angle vs time (cnts
  color-coded) in the science analysis plan
• Nathan Maintain a sources document.
• Within the sources document, record Geometric
  factors and conversion into counts.
• Magnetosphere 6.3E4 (O or H, 50 eV)
• O 9 cnts/s H 112 cnts/s
• Jupiter Flux 80 eV H, S, mols 1.5E3 (cm2 s
  sr)-10.3 cnts/s
• Add tails in the sources document based on V1
  measurements
• Nathan Update S/N plot (Phase A Now)

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Action Items (2)

• Maciej and Rosine .. mu parameter
• procedure for calculating ENA trajectories
  (lensing)
• Maciej and Mike Gruntman .. Develop a document
  describing the ionization rates.
• Association of IBEX with Ulysses
  (IBEX/Ulysses/Vger Meeting)
• Herb, Steven, Eberhard, Chelle Investigate
  timing of initial sensor turn-on
• Steve Patel, Herb, Erberhard, Stephen Fuslier
• What level to ramp voltages down for perigee
  passes?
• What do we do with HV during thruster firing,
  rad belts, SRM burn, orbit raising burn, eclipse
  straddling, repointing maneuvers

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Action Items (3)

• (Chelle) Conversions and Formulas Document owned
  at the ISOC
• (Eberhard and Maciej) Define the sequence of
  steps for interstellar neutral data processing
• (Team) Distribute Analysis Plan, team provides
  feedback (toolbox)
• (Modelers) confer and agree on format for model
  inputs to ISOC for comparison with obsvervations
• (Dave) Ulysses, ACE and Wind by launch, a paper
  on average variations and solar wind observations
  feeding into determination of global heliosphere.
  Epoch data for input to models. Need solar wind
  global measurements/observations over solar
  maximum

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Action Items (4)

• (Vlad, Gary, Marti, Nick, Jacob, Hans, Merav)
  Levels of discovery, exploration understanding
  and potential implications of IBEX observations
  (asymmetries, implications, etc)
• (Team) Coordinate systems and modes for plotting
• MODELS NEEDED
• Magnetospheric Model (incl foreshock) Ed Roelof
  and Mike Gruntman
• Ionization Model Maciej Mike G
• Gravitation lensing incl. radiation maciej and
  Rosine
• Locations of planets/star
• Incl. UV star maps Klaus and John Cooper, jpl
  planetary ephemeris, nssdc

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New S/N Plot (Schwadron)