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Proposal Identification No.:

R2657

Date Received:

2011-Jun-01 18:10:26

Technical Page
Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Planetary Radar Solar System 40 Hours 3 hours

Radar Observations of C/2010 X1 Elenin and C/2006 T1 Levy

We propose radar observations to detect large grains in the coma and to image the nucleus of two comets. C/2010 X1 Elenin is 0.23 AU from the Earth in October, 2011. We expect to obtain CW spectra of the coma of this comet, and to detect cm -sized grains in the coma if possible. We may obtain images of the nucleus if it is large enough. C/2006 T1 Lev y is a periodic comet which comes to 0.18 AU from the Earth in January, 2012. If the SNR is 50 or more for either, we could get images of the nucleus to reveal its size and shape. Such opportunities are extremely rare, but have yielded very valuable information for the four comets imaged to date.

Name Ellen S Howell

Institution Arecibo Observatory

E-mail ehowell@naic.edu

Phone

Student no

Remote Observing Request

X

Observer will travel to AO Remote Observing In Absentia (instructions to operator)

Instrument Setup
S-Band radar S-band receiver

Atmospheric Observation Instruments:

Sp ecial Equipment or setup:

none

RFI Considerations Frequency Ranges Planned
2380 MHz

1