Radio Observation of 2007 Quadrantids

*Radio Observation of the 2007 Quadrantids*

*Data Collection and Analysis*

For details about our equipment and method of data analysis, see our main page. The 2007 Quadrantid meteor shower showed one major peak of nearly 20 meteors per hour at 3:15 PM EST on January 3, 2007, and considerable activity in the surrounding days. The peak occurred somewhat earlier than the prediction of 7:30 PM.

We've modified our data analysis. Instead of counting all meteors in an hour, we've counted meteors in quarter hour intervals, and then applied a data smoothing equation of the form

Smoothed_Rate(t) = 3.2*[((1/2)*N(t))+((1/4)*(N(t+1))+((1/4)*(N(t-1))+((1/8)*(N(t+2))+((1/8)*(N(t-2))]

where N(t) is the number of meteors in the fifteen minute interval t, N(t-1)is the number of meteors in the preceding fifteen minute interval, and so on.

*Rates for 2007 Quadrantids*

The following graph shows the meteor count rates per hour we measured for the 2007 Quadrantids. These rates were determined by a computer program that counted all peaks that climbed at least 20% above the background level in one second. The graph shows the rates observed for the 72 hour period starting at Midnight EST on 01/01/07.

*Summary*

We observed one peak for the 2007 Quadrantid meteor shower. The peak rate of about 19 meteors per hour occurred at 3:15 PM EST on January 3, 2007.

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Comments and technical questions can be addressed to Dev Gualtieri, Devlin Gualtieri, at Honeywell Laboratory, Morristown, NJ.

Copyright © 2007 D. M. Gualtieri, All Rights Reserved.

Last Update: 01-06-2007