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 WHY TRACK NEAR EARTH OBJECTS?  Safety of Planet  Future exploitation of resources ◦ Mining of asteroids ◦ Water from comets.

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Presentation on theme: " WHY TRACK NEAR EARTH OBJECTS?  Safety of Planet  Future exploitation of resources ◦ Mining of asteroids ◦ Water from comets."— Presentation transcript:

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13  WHY TRACK NEAR EARTH OBJECTS?  Safety of Planet  Future exploitation of resources ◦ Mining of asteroids ◦ Water from comets for fuel

14 NASA Sponsored Program Minor Planetary Center Harvard Astrophysical Institute Funding Recently Increased  Near Earth Asteroids  Perihelion distance is less than 1.3 AU  Near Earth Comets  Perihelion distance is less than 1.3 AU  Period is less than 200 years (short period)

15  CHANCE OF IMPACT IS VERY SMALL BUT REAL ◦ 784 NEOs over ½ mile wide currently tracked ◦ Only one poses risk of impact with 1 out of 2940 chance if hitting Earth in 40 years ◦ CHANCE OF IMPACT BY NEO  ½ mile wide or larger: one every 500,000 years 1500 feet wide: one every 100,000 years  150 feet wide: one every 700 years  90 feet wide: one every 140 years

16  NEO Work At Hobbs Observatory ◦ Comets tracked for five year ◦ Measurer is Bob Elliott ◦ Observer is Bert Moritz ◦ Observations made with 24” telescope and Apogee U55 camera ◦ Data reduction done in Michigan ◦ Results sent to Smithsonian Astrophysical Institute at Harvard University

17  473 Remanzacco. Observers L. Donato, M. Gonano, V. Gonano, E. Guido, M. Travagini, G. Sostero. 0.45-m f/4.4 Newtonian reflector + CCD.750 Hobbs Observatory, Fall Creek. Observer N. Moritz. Measurer R. Elliott. 0.60-m f/5 reflector + CCD.808 El Leoncito. Observers M. L. Varela M., J. Vicentela. Measurer M. L. Varela M. 0.5-m f/7.5 double astrograph + CCD.834 Buenos Aires-AAAA. Observers R. Mackintosh, M. Konishi, R. Mykytyuk. Measurer R. Mackintosh. 0.25-m f/6.3 Schmidt-Cassegrain + CCD.900 Moriyama. Observer Y. Ikari. 0.26-m f/7.0 reflector + CCD.945 Observatorio Monte Deva. Observer J. R. Vidal. 0.36-m f/4.48 Schmidt-Cassegrain + CCD.

18  COD 750OBS N. MoritzMEA R. ElliottTYP CMTACK Observations from Hobbs Observatory Sent 05 June 2009 EDTTEL 0.60-m f/5 reflector + CCDNET UCAC2 CK06Q010 C2009 06 05.12015 16 20 16.09 +37 24 07.7 16.3 N750 CK06Q010 C2009 06 05.13321 16 20 15.62 +37 24 09.9 16.3 N750 CK06Q010 C2009 06 05.14252 16 20 15.26 +37 24 11.5 16.6 N750 CK06Q010 C2009 06 05.14410 16 20 15.21 +37 24 11.8 15.8 N750

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