Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/BennertagR2595tp.ps Дата изменения: Mon Jan 3 18:03:36 2011 Дата индексирования: Fri Feb 11 18:29:54 2011 Кодировка: Поисковые слова: http www.astronomy.ru forum index.php topic 4644.0.html

Proposal Identification No.: R2595 Date Received: 2011­Sep­19 19:27:17
Technical Page
Proposal Type: Urgent
General Category: Planetary Radar
Observation Category: Solar System
Total Time Requested: 33:45 Hours
Minimum Useful Time:
Proposal Title: Urgent Proposal for Radar Observations of Near­Earth Asteroids 2010 JL33,
(65679) 1989 UQ, and (207945) 1991 JW
ABSTRACT:
We propose radar observations of 2010 JL33, 1989 UQ, and 1991 JW at Arecibo during October­December, 2010.
2010 JL33 will be a very strong radar imaging target in early December, when it should be possible to obtain
images with resolutions as fine as 7.5 m. 1989 UQ and 1991 JW are being considered as potential targets for
human missions so there is considerable interest in their physical properties. They are detectable at useful
signal­to­noise ratios if at least several hundred kilowatts of transmitter power are available. For the latter two
objects, the 2010 apparition is the best for radar observations until after mid 2020s, the timeframe being considered
for human missions.
Name Institution E­mail Phone Student
Lance A. M. Benner Jet Propulsion Labo­
ratory
lance.benner@jpl.nasa.gov 818­354­7412 no
Remote Observing Request
X Observer will travel to AO
Remote Observing
In Absentia (instructions to oper­
ator)
Instrument Setup
S­Band radar S­band receiver
Atmospheric Observation Instruments:
Special Equipment or setup: none
RFI Considerations
1

Frequency Ranges Planned
2