An overview of asteroid data

1. An Overview ofAsteroid Data
J.L. Galache, PhD
(@JLGalache)
February 2016
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www.maverickslab.org

2. An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
What’s an Asteroid
An Overview of Asteroid Data 2J.L. Galache, PhD @JLGalache

3. An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
What’s an Asteroid
An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
Where Do They Live?
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Credit: NASA

4. An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
What’s an Asteroid
An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
Near Earth Asteroid Orbit Types
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Credit: NASA

5. An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
NEA discoveries 1985-2015
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Credit: Minor Planet Center
What’s an Asteroid
An Overview of Asteroid Data J.L. Galache, PhD @JLGalache

6. An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
What’s an Asteroid
An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
TYPES OF ASTEROID OBSERVATIONAL DATA
AND PARAMETERS GLEANED FROM IT
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7. An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
Astrometry
Orbit, 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 49.98
20.7
2013/06/18.54739
19 59 50.905 | -26 35 28.75
20.8
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Credit: Pan-STARRS
143 million obs  702,000 asteroids  13,700 NEAs

8. An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
Coverage Data
Patches of sky searched for NEAs
10,000 fields
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9. An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
Lightcurves
Spin period, binarity, maybe shape and spin axis
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11,500 objects

10. An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
Lightcurves
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Credit: Brian Warner

11. An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
Spectroscopy
Composition, aprox. albedo
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1,000 NEA spectra

12. An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
SDSS Multi Band Photometry
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105,000 ID’d asteroids  251,468 non-ID’d objects  200 NEOs
Credit: Parker et al., 2008

13. An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
Infrared Space-Based Observations
Size, albedo (if have optical), composition (if have albedo)
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18,000 objects  500 NEOs
Credit: NASA/JPL-Caltech

14. An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
Radar
Size, shape, spin axis, surface properties , orbit, binarity, aprox. albedo
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750 asteroids  600 NEOs
Credit: NASA/JPL-Caltech; NRAO/AUI/NSF

15. An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
Asteroid Shape Models
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929 asteroids

16. An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
Most Important to Planetary Defense:
Asteroid Mass
•
composition
spectroscopy (optical+IR)
size
radar, space IR
orbit
astrometry
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17. An Overview of Asteroid Data J.L. Galache, PhD @JLGalache
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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 1 Meteorite 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 1 Near-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