Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/MeiseltagT1362tp.ps Дата изменения: Mon Apr 19 19:59:28 2004 Дата индексирования: Sat Dec 22 21:55:33 2007 Кодировка: Поисковые слова: http astrokuban.info astrokuban

Proposal Identication No.: T1362 Date Received: 1999-Sep-30 15:10:44
Technical Page
Proposal Type: Regular
General Category: Terrestrial Aeronomy
Sub-Category: Radar
Observation Category: Middle-Lower Atmosphere
Total Time Requested: 15 radar, 45 optical Hours
Proposal Title: Search for Optical Signatures from Arecibo Micrometeors
ABSTRACT:
The Arecibo UHF radar detects micrometeors whose durations are in the 10 to 100 ms range. All
indications (Mathews et al. 1997; Janches et al. 1999a,1999b, Meisel et al. 1999) are that these are small
particles as indicated by their observed drag decelerations, but all have undetermined masses. In
calculations so far the mass is determined by assuming a canonical density of 3 gm/cc.The meteor
mass-visual luminosity calibration has been performed many times and to place our particles on that
scale requires a relatively modest number of simultaneous radar and optical observations.
Name Institution E-mail Phone Student
David D. Meisel SUNY-Geneseo and
CSSL, Penn State
ddm6@psu.edu 814-8638684 no
Instrument Setup
430 CH receiver 430 CH radar
Atmospheric Optical Instruments:
Description of Observer Equipment: We plan to use two user-supplied photomultipliers attached to
two of the LIDAR telescopes.
Special Equipment or setup: Both Photomultipliers will feed data into the Turbo
MCS system at Arecibo. Data collection and pulsing
for the UHF radar is to be identical with that used
by Mathews et al. for the Leonids campaign.
RFI Considerations
Frequency Ranges Planned
1