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Proposal Identification No.:

R2210

Date Received:

2006-Jan-31 18:22:58

Technical Page
Proposal Type: General Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Regular Planetary Radar Solar System 18 Hours

Radar Imaging of Two Potentially Hazardous Asteroids

We propose to take advantage of particularly strong apparitions of Potentially Hazardous Asteroids 2001 CB21 and 7341 (1991 VK), using radar observations to dramatically improve our knowledge of each ob ject's physical properties. 2001 CB21 is one of the strongest radar targets visible at Arecibo during the next year. In conjunction with optical data, images with full rotation phase coverage should allow us to construct a shape model with fractional resolution comparable to that achieved with the best radar-derived models of near-Earth ob jects. 1991 VK is near a 2:5 orbital resonance with the Earth and makes relatively close approaches every five years, making it a candidate for measurement of Yarkovsky acceleration. Radar observations are scheduled at Goldstone for January 10-21, 2007, but Arecibo radar imaging will provide SNRs sufficient for high-resolution shape modeling.

Name Michael W Busch

Institution California Institute of Technology

E-mail busch@caltech.edu

Phone 1-612-269-9998

Student G

Service Observing Request

Remot e Observing Request

X

None All of the observing run. Part of the observing run. Queue Observing

X

No Maybe Yes

Instrument Setup
S-Band radar Atmospheric Observation Instruments:

Sp ecial Equipment or setup:

none

RFI Considerations
1


Frequency Ranges Planned

2