Sextantids

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Sextantids - radio results

The Sextantids are a shower in the IMO working list of daytime radio meteor streams with a  maximum of activity on September 27th.

Shower: Sextantids
Activity: Sep 09 - Oct 09
Max Date: Sep 27
Solar Long: 1843
Radiant alpha: 152
Radiant delta: 00
Rate: medium

2007 Sextantids - radio results

Lying on the ecliptic, the Sextantid radiant is only observable, from mid-northern latitudes, for a small part of the day and the radiant  never reaches a great elevation. The meteor activity in early October is  also complicated by the increasing delta-Aurigids component. Consequently, I haven't attempted a full analysis, but settled for  looking for some activity.

I've taken the observer's counts from 2007 09 23 to 2007 10 03 and  compared these to the average of the observer's counts, for the same  hour, over a fourteen-day period 2007 09 20 to 2007 10 03 inclusive. If the count exceeded the average by one standard deviation, and the Sextantid radiant was above the horizon, then I've  taken the increase as being statistically significant and marked them on the chart.

I'd conclude that the 2007 Sextantids probably did contribute a significant amount of activity for several days in late September and  early October 2007 that the peak of activity occurred some time on the  27th September 2007.

Gaspard shows constant Sextantid activity, while the radiant had a usable altitude, on the 27th September. There also an indication of  Sextantid activity on the 26th and 29th September.

I also show constant Sextantid activity, while the radiant had a usable altitude, on the 27th September. There also an indication of Sextantid activity on the 25th and 26th September.

Dave Swan's results suggest a similar activity profile, but the proportional increase in counts is not as great; possibly suggesting the Sextantid stream produces a relatively small number of brighter meteors, rather than a large number of faint meteors.