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Proposal Identication No.: T1565 Date Received: 2001-Jun-01 08:08:54
Technical Page
Proposal Type: Regular
General Category: Terrestrial Aeronomy
Sub-Category: Radar
Observation Category: Solar System
Total Time Requested: 72 Hours
Proposal Title: A Year Study of the Sporadic Micrometeor Flux into the Upper Atmosphere and
the Distribution of Dust at 1 AU
ABSTRACT:
We propose to study the annual variations of the micrometeor ux and associated ionospheric eects utilizing the
430 MHz Arecibo radar. In addition, using the same observations, we propose to study the seasonal structure of
distribution of dust at 1 AU as well as the dependence on the location of Jupiter as it progressively moves across
the track of the interstellar particle (ISP) ux detected at AO [Meisel, Janches and Mathews 2001]. These
observations employ the 430 MHz radar that will be operated in the ISR/Meteor mode, that is 10 sec ISR / 50 sec
meteor, technique that already has provided with excellent results both in the aeronomical as well as the
astronomical aspects of meteor science (Mathews et al 1997; Janches et al. 2000a,b; Janches, Meisel and Mathews
2001; Mathews et al. 20001; Meisel, Janches and Mathews 2001). These observations will allow us to better
characterize the order microgram particles we have observed largely during November periods. The main goal of
the proposed observations is to measure the variation of the peak of the daily sporadic meteor storm suggested by
Janches et al. (2000b) and Mathews et al. (2001). This peak occurs at sunrise (near apex-crossing). As an
additional result of these observations we will study the orbital properties hoping to identify sporadic micrometeor
sources as well as obtain the annual in ux of interstellar objects.
Name Institution E-mail Phone Student
Diego Janches Penn State Univer-
sity
diego@irf.se 814-863-0188 no
I do NOT want to do remote observing.
Instrument Setup
430 CH receiver 430 CH radar
Atmospheric Optical Instruments:
Lidar
Special Equipment or setup: none
RFI Considerations
Frequency Ranges Planned
This proposal requires coordination with AFTWF within the band 425-435 MHz.
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