Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/ShepardtagR2245tp.pdf Дата изменения: Tue Aug 15 22:46:18 2006 Дата индексирования: Sat Dec 22 23:21:22 2007 Кодировка: Поисковые слова: ngc 5128

Proposal Identification No.:

R2245

Date Received:

2006-May-31 12:37:28

Technical Page
Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Planetary Radar Solar System 66 Hours 2 hr

Continuation of a Long-Term Radar Survey of Main-Belt M and E class Asteroids

We propose to observe five M-class asteroids (77 Frigga, 337 Devosa, 441 Bathilde, 504 Cora, and 758 Mancunia) and one E-class ob ject (44 Nysa) that have never been observed with radar. We will also re-observe 97 Klotho to obtain the first delay-Doppler images of that target. These encounters are the best available for radar study for the next 5-25 years. These new observations will bring the total number of M-class main-belt asteroids observed with radar to 17, the number of E-class to two, and the number of imaged main-belt M-class asteroids to four (16 Psyche, 21 Lutetia, 97 Klotho, and 216 Kleopatra). These M-class observations will allow us to test the hypothesis that only about one-third of the spectral M population appears metallic, test the hypothesis that a 3 um spectral (hydration) feature is incompatible with metallic compositions, and to exploit the high SNR available for the M-asteroid 97 Klotho to do delay-Doppler imaging which should allow a three-dimensional shape model. 44 Nysa will be only the second E-class main-belt asteroid observed.

Name Michael K Shepard

Institution Bloomsburg University

E-mail mshepard@bloomu.edu

Phone 570-389-4568

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 1


RFI Considerations Frequency Ranges Planned

2