For details about our equipment and method of data analysis, see our main page. The 2004 Leonid meteor shower showed two major peaks, but high count rates were observed over several days. The peak rate we observed was 23 meteors per hour.

Rates for 2004 Leonids

The following graph shows the meteor count rates per hour we measured for the 2004 Leonids. 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 from Midnight EST 11/14/04 through 3:00 PM 11/21/04.

Summary

We observed two peaks for the 2004 Leonid meteor shower. There was one of 23 meteors per hour observed between 2:00 AM and 3:00 AM EST on November 18, 2004; and another of 22 meteors per hour twenty four hours later, between 2:00 AM and 3:00 AM EST on November 19, 2004. High count rates were observed over the extended period. There was a Pre-Leonid shower expected near November 9, but our data showed no special activity at that time. However, there was a small peak of 19 meteors per hour centered around 3:00 AM EST on November 12, 2004.

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