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Proposal Identification No.:

R2654

Date Received:

2011-Jun-01 09:14:16

Technical Page
Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Planetary Radar Radar Solar System 24 Hours 3.5 hours

Arecibo-GBT 70-cm Targeted Lunar Radar Mapping

We request 24 hours of Arecibo-GBT time to acquire targeted 70-cm wavelength, dual-polarization radar backscatter maps of the Moon. The new observations will use a 1-µs baud length and about 4.5 total hours of integration time on each target to achieve 200-m spatial resolution with 8 looks per pixel. We have collected proof-of-concept data for Mare Serenitatis that show the exciting science value of these higher-resolution images in the broad context of our earlier 500-600 m scale mapping. In particular, the new observations reveal details of rugged mare lava flow complexes hidden beneath the lunar dust. These rough flows require a ma jor re-evaluation of our understanding of volcanic processes (including the possible role of magmatic water) on the Moon, and our new observations will extend the search to other mare units.

Name Bruce A Campbell

Institution Smithsonian Institution

E-mail campbellb@si.edu

Phone 202 633 2472

Student no

Remote Observing Request

X

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

Instrument Setup
430 CH radar Atmospheric Observation Instruments:

Sp ecial Equipment or setup:

none

RFI Considerations
1


Frequency Ranges Planned
430

2