(meteorobs) Leonids ZHR graph available + *** important reminder to use short intervals ***

Geert Barentsen geert at barentsen.be
Fri Nov 13 10:31:43 EST 2009


Dear Leonid friends,

The ZHR graph for the Leonids is now available at http://www.imo.net
(many thanks to Mikhail Maslov and Jakub Koukal for the first data points
:-))


*** IMPORTANT TIPS ***

Please remember to observe and report short intervals during the Leonids! As
a rule of thumb, try not to put more than 5 to 10 Leonids in a single
interval. In any case, avoid intervals longer than 10-15 minutes throughout
November 17. Even when Leonid activity appears poor due to low radiant
elevation or bad weather, you may be observing an outburst which requires
high-resolution data.
To submit a large number of intervals, the IMO electronic report form allows
you to customize the number of rows in the form. Alternatively, you may
submit your observation by submitting multiple forms (which is perhaps safer
in case your computer or connection may crash).

Also note that the intervals do not have to start at nice round times (e.g.,
2200-2210, 2210-2220 ...)  It is in fact far better to use random irregular
intervals (e.g., 2203-2213, 2213-2221 ...)   When all observers use the same
"clean-looking" rounded times, there is less overlap between intervals of
different observers and the resolution of the graph is effectively reduced !

Remember: accurate peak times and widths will result in even better
prediction models :-)

Clear skies and good luck !!
Geert



More information about the Meteorobs mailing list