1. Broadband Photometry of 2003 KU2: A Potentially Hazardous Near- Earth Asteroid David M Dombroski – Los Angeles City College Mentor: Dr. Michael Hicks - Jet Propulsion Laboratory

2. Road Map 1.Asteroids in general 2.Observations of 2003 KU2 3.Data analysis

3. Why study Asteroids? How Planets are formed How life exists What existed billions of years ago Dangers to the Earth (NEO’s)

4. Edge-on View of Near-Earth Asteroids (NEAs)

5. Potentially Hazardous Asteroids (PHAs)

7. Table Mountain Observatory (TMO)TMO 0.6m (24 inch) Telescope Control Room

8. Control Screen

9. Image of 2003 KU2

10. 2003 KU2 Discovered by A.F Tubbiolo on May 5, 2003 Classified as a Near-Earth Object (NEO) Designated as Potentially Hazardous Asteroid (PHA) Data collected over three nights Using 0.6-m telescope at TMO Appears to have a Sq-type classification Rotation period was found to be 3.278 hours Diameter found to be about 1.5 km

11. Three nights of Broadband Photometry on 2003 KU2 UT DateR [AU]Delta [AU]Solar Phase [deg] V [Mag]FiltersObservers 2012 07 061.1200.13638.715.1BVRIDavtyan, Dombroski 2012 07 081.1030.12443.815.0BVRIDombroski, Davtyan 2012 07 091.0940.11946.914.9RTeague, Strojia B-R [Mag]V-R [Mag]R-I [Mag] Mean (Avg.) 1.250  0.0220.439  0.014 0.275+/-0.017 Averaged Colors

12. Best-fit SMASS II spectral analogs to 2003 KU2 2003 KU2 belongs to Sq-Type spectral classification Taxonomic Class MisfitObject Name(Tholen)(Bus) 0.3504733 OROSq 0.8422873 BinzelSq 1.2775242 KenreimoninSq 1.5083903 Kliment OhridskiSq 1.524180 GarumnaSSq

13. Examples of S and Sq-type Asteroids 433 Eros (S-type)99942 Apophis (Sq-type) 2009 DD45 (S-type)951 Gaspra (S-type)

14. Spectral Color Comparison of 2003 KU2

15. Rotational Period using Fourier techniques

16. Rotational Period comparison with 2010 FC81

17. Light Curve for 2003 KU2

18. Future Data for 2003 KU2 Possible observable target in early November 2034

19. My Experience

20. Thanks to: Dr. Michael Hicks (JPL) Heath Rhoades (JPL) Richard Alvidrez (JPL) Professor Paul McCudden (LACC) CURE Astronomy REU Site The work was supported by the National Science Foundation under grant 0852088 to Cal State LA.