(meteorobs) June Bootids

Mikhail Maslov ast3 at ngs.ru
Sat Jun 26 14:31:43 EDT 2010


Hi, Paul and others,

Many thanks for these reports. They are very important due to the lack
of other visual reports from North America longitudes. As your and
other reports show, the activity of June Bootids quite certainly
occured, though remained very low with ZHR not higher than 5-7.
Perhaps it lasted during several hours starting appr. from 22 UT
June 23.

Your second observation on June 24/25 night gave 1 JBO meteor, in your
classification. But other reports tell about absence of JBO activity
in that night. Don't your think this meteor could be in a casual
alignment with JBO radiant?

Best regards, Mikhail


pmc> Paul Martsching
pmc> McFarland Park 4 miles NE of Ames, Story County, Iowa, USA
pmc> Long: 93 deg 34 min W  Lat: 43 deg 05 min N  Elevation: 318 meters
pmc> 24 June 2010 03:15 - 05:45 UT (23/24 June 10:15pm - 12:45am CDST)

pmc> June Bootids
pmc> Sporadics

pmc> 03:15-04:15; 75 degrees F; dew point 62 deg F; wind North 18 mph; clear; gibbous Moon low in South; LM 5.0; facing North 55 deg; total teff 1.0 hour

pmc> JBO: one: +2
pmc> Sporadics: three: +2(2); +3
pmc> Total meteors: four

pmc> 04:15-05:15; 72 deg F; dew pt 58 deg F; wind N 10 mph; clear; gibbous Moon low in S; LM 4.9; facing N 55 deg; total teff 1.0 hour

pmc> JBO: three: -3; +3(2)  the mag. -3 JBO was orange
pmc> Sporadics: two: +3(2)
pmc> Total meteors: five

pmc> 05:15-05:45; 68 deg F; dew pt 58 deg F; calm; gibbous Moon low in S; LM 4.8; facing N 55 deg; total teff 0.5 hour

pmc> JBO: one: +4
pmc> Sporadics: two: 0; +1
pmc> Total meteors: three (half hour)

pmc> Quit because some fog forming and must work next day.

pmc> Five JBO's in 2.5 hours on this date and under these conditions would indicate some activity.

pmc> Same observing location:
pmc> 25 June 2010 03:30 - 05:00 UT (24/25 June 10:30-12:00 CDST)
73 >> 68 degrees F; dew point 67 > 64 degrees; calm; a bit hazy; nearly full Moon in South; LM 4.3; facing North 55 deg; total teff 1.5 hours.

pmc> JBO: one: +3
pmc> Sporadics: three: +2(2); +3
pmc> Total meteors: four

pmc> Not much activity so quit and went home.

pmc> Next night (25/26 June): massive thunderstorms in the North at 10:30 pm CDST which arrived about an hour later; then more thunderstorms and hail at 4:30 am CDST.
pmc> Tonight (26/27 June) more thunderstorms have been forecast.
pmc> Maybe the following night it will be clear???

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