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Proposal Identification No.: R2218 Date Received: 2006­Feb­06 17:47:49
Technical Page
Proposal Type: Regular
General Category: Planetary Radar
Observation Category: Solar System
Total Time Requested: 34 Hours
Proposal Title: Rotationally resolved Radar Observations of 554 Peraga:Correlation with 3­
micron Spectroscopy
ABSTRACT:
As a follow­up to our ongoing main­belt asteroid observations to correlate the hydration state of low­albedo
main­belt asteroids with their radar properties, We propose to make rotationally resolved observations of asteroid
554 ”
Peraga. Our previous work has shown a consistent relationship between higher radar albedo and hydrated
surface minerals. Asteroid 554 ”
Peraga is the only remaining asteroid whose spectra at di#erent rotation phases
shows inconsistent hydration states. The radar observations will help determine the asteroid shape, observing
geometry, and any inhomogeneities with rotation.
Name Institution E­mail Phone Student
Ellen Howell Arecibo Observatory ehowell@naic.edu 787 878­2612
x282
no
Service Observing Request Remot e Observing Request
X None X No
All of the observing run. Maybe
Part of the observing run. Yes
Queue Observing
Instrument Setup
S­Band radar S­band receiver
Atmospheric Observation Instruments:
Special Equipment or setup: none
RFI Considerations
Frequency Ranges Planned
1