Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/OstrotagR1981tp.pdf Дата изменения: Sat Aug 28 14:45:58 2004 Дата индексирования: Sat Dec 22 21:38:51 2007 Кодировка:

Proposal Identification No.:

R1981

Date Received:

2004-May-27 14:48:30

Technical Page
Proposal Type: General Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Regular Planetary Radar Solar System 36 Hours

Radar Imaging of Mainbelt Asteroids for Shape Reconstruction

The upgraded Arecib o telescop e is now sensitive enough to supp ort radar imaging and 3-D shap e reconstruction of the strongest mainb elt asteroid (MBA) radar targets. (Only seven MBAs have yielded radar images with at least ten indep endent pixels on the target, and a radar-derived 3-D shap e mo del has b een published for only one ­ 216 Kleopatra). This is a prop osal to image five MBA candidates for shap e reconstruction: 21 Lutetia (a flyby target of the Rosetta Mission), 27 Euterp e, 49 Pales, 80 Sappho, and 128 Nemesis. Pales has not b een detected previously, and previous exp eriments on the other targets have pro duced total signal-to-noise ratios less than 18. Our prop osed observations should easily b e able to accumulate data sets with SNRs ranging from 60 to several hundred for each target.

Name Steven J Ostro

Institution Jet Propulsion Laboratory Jet Propulsion Laboratory Jet Propulsion Laboratory

E-mail ostro@reason.jpl.nasa.gov

Phone 818-354-3173

Student no

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 1


RFI Considerations Frequency Ranges Planned

2