Äîêóìåíò âçÿò èç êýøà ïîèñêîâîé ìàøèíû. Àäðåñ îðèãèíàëüíîãî äîêóìåíòà : http://www.naic.edu/vscience/schedule/tpfiles/MathewstagT2874tp.ps Äàòà èçìåíåíèÿ: Tue Oct 1 18:52:20 2013 Äàòà èíäåêñèðîâàíèÿ: Mon Apr 11 16:22:59 2016 Êîäèðîâêà: Ïîèñêîâûå ñëîâà: meteoroid

Proposal Identification No.: T2874 Date Received: 2013­Sep­03 11:03:13
Technical Page
This proposal has not been submitted before.
Proposal Type: Regular
General Category: Terrestrial Aeronomy
Sub­Category: Continuum
Sub­Category: Radar
Observation Category: lunar EMP
Total Time Requested: 6 hours Hours
Minimum Useful Time: 2 hrs
Proposal Title: Simultaneous Millstone Hill and Arecibo observations searching for lunar meteoroid­
strike EMPs.
ABSTRACT:
Simultaneous passive observations of the quarter­phase (waxing half­moon) at 440 MHz (MH) and at 430 MHz
(AO) are proposed to search for possible ElectroMagnetic Pulses (EMPs) generated by gram­class meteoroid strikes
on the radar­visible lunar surface. The observing geometry and time of year are chosen such that moon transits
near zenith at AO and at the end of the 1st quarter phase when the full radar­visible face of moon faces into the
apex of Earth' s way thus maximizing the number meteoroid strikes. The EMPs are expected to be approximately
1 microsecond in duration and to occur several times per minute over the lunar surface. If detected, these EMPs
would provide insight into the physics of solid­body hypervelocity impacts including how energy is partitioned
among the ejecta, plasma, and radiative processes. A total of four common passive observing periods is requested
at both MH and AO. The moon is observed from these two locations so that interference can be e#ciently rejected
Name Institution E­mail Phone Student
John D Mathews Radar Space Sciences
Lab, Penn State Uni­
versity
JDMathews@psu.edu 814­777­5875 no
Remote Observing Request
X Observer will travel to AO
Remote Observing
In Absentia (instructions to oper­
ator)
Instrument Setup
430 G 430 Xmit
1

Atmospheric Observation Instruments:
Description of Observer Equipment: A dedicated data­taking system may be employed.
Special Equipment or setup: none
RFI Considerations
Frequency Ranges Planned
2