Jl galache - An overview of asteroid data

An Overview ofAsteroid DataJ.L. Galache, PhD

(@JLGalache)February 2016

www.maverickslab.org

http://www.maverickslab.org/

An Overview of Asteroid Data J.L. Galache, PhD @JLGalache

What’s an Asteroid





Where Do They Live?

Credit: NASA




Near Earth Asteroid Orbit Types

Atira

Credit: NASA


NEA discoveries 1985-2015

Credit: Minor Planet Center






TYPES OF ASTEROID OBSERVATIONAL DATAAND PARAMETERS GLEANED FROM IT


AstrometryOrbit, abs. magnitude (→rough size)

Asteroid 2013 MZ5 2013/06/18.50804 19 59 51.999 | -26 33 32.19 20.6

2013/06/18.52113 19 59 51.644 | -26 34 10.91 21.0

2013/06/18.53428 19 59 51.278 | -26 34 49.9820.7

2013/06/18.5473919 59 50.905 | -26 35 28.7520.8 Credit: Pan-STARRS

143 million obs − 702,000 asteroids − 13,700 NEAs


Coverage DataPatches of sky searched for NEAs

10,000 fields


LightcurvesSpin period, binarity, maybe shape and spin axis

11,500 objects


Lightcurves

Credit: Brian Warner


SpectroscopyComposition, aprox. albedo

1,000 NEA spectra


SDSS Multi Band Photometry

105,000 ID’d asteroids − 251,468 non-ID’d objects − 200 NEOs

Credit: Parker et al., 2008


Infrared Space-Based ObservationsSize, albedo (if have optical), composition (if have albedo)

18,000 objects − 500 NEOs

Credit: NASA/JPL-Caltech


RadarSize, shape, spin axis, surface properties , orbit, binarity, aprox. albedo

750 asteroids − 600 NEOs

Credit: NASA/JPL-Caltech; NRAO/AUI/NSF


Asteroid Shape Models

929 asteroids


Most Important to Planetary Defense: Asteroid Mass

•

composition

spectroscopy (optical+IR)

size

radar, space IR

orbit

astrometry

impac

t energy

!


The JPL Small-Body Database http:/ / ssd.jpl.nasa.gov/ sbdb.cgi

Earth craters (188) Planetary and space science center

Bolide Impacts / Bolide and Fireball Reports https://data.nasa.gov/Space-Science/Fireball-And-Bolide-Reports/mc52-syum 1 http://neo.jpl.nasa.gov/fireball

Meteorite Landings 1Meteorite Landings - https://data.nasa.gov/Space-Science/Meteorite-Landings/gh4g-9sfh

NEOWISE NEA/COMET Discovery 1 http://neo.jpl.nasa.gov/programs/neowise.html

PHA Orbits (Potentially Hazardous Asteroids) 1 http://neo.jpl.nasa.gov/orbits/

Minor Planet Orbits 1 http://www.minorplanetcenter.net/iau/MPCORB.html

HED Compendium (Meteorites from VESTA) http:/ / curator.jsc.nasa.gov/ antmet/ hed/ hed_compendium.cfm

The Lunar Reconnaissance Orbiter (Moon craters) http://lunar.gsfc.nasa.gov/

Heliocentric Comets 1Near-Earth Comets - Orbital Elements - https://data.nasa.gov/Space-Science/Near-Earth-Comets-Orbital-Elements/b67r-rgxc

Light Curve Database http://minorplanetcenter.net/light_curve.

3D models of asteroids, from radar and lightcurve inversion. 1 http://space.frieger.com/asteroids/

MPC Web service: orbits and some physical parameters. http://minorplanetcenter.net/web_service

Potentially Hazardous Asteroids http://www.minorplanetcenter.net/iau/MPCORB/PHA.txt (P

Dates of last observation for NEAs and outer Solar System objects http://www.minorplanetcenter.net/iau/lists/LastUnusual.html

STARTING POINTS

http://ssd.jpl.nasa.gov/sbdb.cgi

https://data.nasa.gov/Space-Science/Fireball-And-Bolide-Reports/mc52-syum

https://data.nasa.gov/Space-Science/Fireball-And-Bolide-Reports/mc52-syum

http://neo.jpl.nasa.gov/fireball

https://data.nasa.gov/Space-Science/Meteorite-Landings/gh4g-9sfh

https://data.nasa.gov/Space-Science/Meteorite-Landings/gh4g-9sfh

http://neo.jpl.nasa.gov/programs/neowise.html

http://neo.jpl.nasa.gov/orbits/

http://www.minorplanetcenter.net/iau/MPCORB.html

http://curator.jsc.nasa.gov/antmet/hed/hed_compendium.cfm

http://lunar.gsfc.nasa.gov/

https://data.nasa.gov/Space-Science/Near-Earth-Comets-Orbital-Elements/b67r-rgxc

https://data.nasa.gov/Space-Science/Near-Earth-Comets-Orbital-Elements/b67r-rgxc

http://minorplanetcenter.net/light_curve

http://space.frieger.com/asteroids/

http://minorplanetcenter.net/web_service

http://www.minorplanetcenter.net/iau/MPCORB/PHA.txt

http://www.minorplanetcenter.net/iau/lists/LastUnusual.html

Jl galache - An overview of asteroid data

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