IDing Meteorite Parent Bodies

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Investigators initially assumed that the highabundance of ordinary chondrites meant that most(or many) asteroids had ordinary chondritecompositions.<strong>Meteorite</strong> Fall Frequencies [Wasson, 1974]LLE Chon.L Chon.H Chon.LL Chon.LCV Chon.CM Chon.AubritesCO Chon.CI Chon.UreilitesHHEDsPallasitesMesosideritesIronsAnom. Si-richAnom. Fe-rich
Asteroid Taxonomic ClassesTo understand where this assumption led,we need to understand asteroid taxonomy.In 1975, an asteroid classification systembased on color, albedo, and spectral shapewas developed by Chapman, Morrison andZellner– C-class: low albedos, flat, featureless spectra– S-class: higher albedos, reddish colors, 1 µmabsorption features
Page 3 and 4: Review of the Asteroid-MeteoriteCon
Page 5: Delivery StagesEjected from asteroi
Page 8 and 9: Secular Resonances (nu / ν )0.5nu(
Page 10 and 11: Getting to “Escape Hatches”Spre
Page 12 and 13: Yarkovsky Effect - IIEffect arises
Page 14 and 15: Net Effect Depends on Rotation Dire
Page 16 and 17: For given albedo and conductivity,
Page 18 and 19: Actual meteoroids will not always h
Page 22 and 23: Asteroid Taxonomic TypesTholen (198
Page 24 and 25: (Ab)Use of TaxonomyOriginal taxonom
Page 26 and 27: Common CosmicMineralsIdentify the t
Page 28 and 29: Lunar Space Weathering ProcessesVap
Page 30 and 31: Spectral Alteration by Space Weathe
Page 32 and 33: Space Weathering BehaviorLuna, 433
Page 34 and 35: Relative Variations of Spectral Par
Page 36 and 37: Limitations of Spectral MatchingInc
Page 38 and 39: Curve MatchingInitially useful in c
Page 40 and 41: Effect of Space Weathering on Band
Page 42 and 43: Effect of Space Weathering on BandA
Page 44 and 45: A major part of the ordinary chondr
Page 46 and 47: Outward-bound Asteroid MissionDAWN-
Page 48 and 49: Bottom Line on Space Weathering and
Page 50 and 51: S-asteroid SubtypesBand I Center (
Page 52 and 53: So where do the OrdinaryChondrites
Page 54 and 55: Hebe is located near both the 3:1 a
Page 56 and 57: The spectral curve of Hebe is signi
Page 58 and 59: 6 Hebe as the Parent Body of the H-
Page 60 and 61: 44 NysaUnsampled Asteroids- Aubrite
Page 62: Meteorites as Parent Body SamplesTh

IDing Meteorite Parent Bodies

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