Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/TaylortagR2844tp.pdf Дата изменения: Mon Jul 29 20:40:43 2013 Дата индексирования: Sat Mar 1 00:31:36 2014 Кодировка: Поисковые слова: arp 220

Proposal Identification No.:

R2844

Date Received:

2013-Jul-29 11:13:40

Technical Page
This proposal has not been submitted before. Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Urgent Planetary Radar Solar System 3 Hours 2

Radar Observations of Near-Earth Asteroid 2003 DZ15

We request one 3-hour observing run (including transmitter warm-up time) to detect the recently recovered asteroid 2003 DZ15 as it approaches within 20 lunar distances of Earth. We expect 2003 DZ15 to be within a factor of two of 100 meters in diameter and will use the radar to refine its size, rotation, and heliocentric orbit. Despite its close approach to Earth, 2003 DZ15 is too small to be categorized as a potentially hazardous asteroid and too large to be considered a human-mission or asteroid-retrieval target. However, it falls in the size range where we see growing evidence for fundamental changes in shape and rotation characteristics of near-Earth asteroids, and therefore is a desirable radar target. If the ob ject shows exceptional characteristics, we may ask for additional time.

Name Patrick A Taylor

Institution Arecibo Observatory

E-mail ptaylor@naic.edu

Phone 787-878-2612 x358

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
1


Frequency Ranges Planned

2