2009 Lyrids as Reported to the North American Meteor Network

2009 Lyrids as Reported to the North American Meteor Network
The North American Meteor Network (NAMN) issued a call for observations to
its membership on April 14, 2009 requesting members observe the Lyrid meteor
shower. With an activity period of April 16 to 25, combined with New Moon on
April 25, there were several mornings available for fruitful meteor watching.
Observers took advantage of this opportunity with at least one person out
every morning during Lyrid activity, with the single exception of April 25.
Salvador Aguirre, observing from Mexico, got the Lyrid campaign off to a
start when he was able to record 2 Lyrids between 0635-0736 UT on April 16.
The next morning (April 17), Robin Gray observing from the United States,
recorded a single Lyrid between 0802-0904 UT. The following morning (April
18), our third consecutive lone observer, Koen Miskotte, observing from the
Netherlands, enjoyed a nice watch of 1.58 hours in which he was also able to
record a single Lyrid. Those who are new to meteor observing should keep in
mind that on any given morning, just like these three observers, you may be
the only person recording activity!
After the first three mornings, additional observers began to monitor the
shower. Three observers, Tibor Csorgei (Slovakia), George Gliba (United
States) and Pierre Martin (Canada) recorded a total of 5.00 hours of
observations (Teff) on April 19. Activity from the Lyrid radiant did increase
slightly this morning with the three observers recording 2, 3 and 5 Lyrids
respectively. Hourly rates remained nearly the same for the next 36 hours or
so, until Koen Miskotte recording a total of 14 Lyrids between 2233-0245
(Teff=4.13) on April 21.
With the arrival of the Lyrid peak on April 22, many more observers
participated. In total, we had 11 observers out under the stars that morning,
with most reporting Lyrid activity ranging from 4 to 15 per hour. The
International Meteor Organization predicted that the best rates would be
observed from the Pacific Ocean area or western North America. Data from one
of our observers, Wesley Stone (United States), seems to confirm the
prediction as he recorded 37 Lyrids in 2.63 hours between 0900-1140 UT from
the U.S. west coast. This was the highest hourly rate reported to NAMN. Other
observers approaching this rate with hourly rates at or higher than 10 per
hour include Tibor Csorgei (Slovakia), Ken Hodonsky (Illinois) and Javor Kac
(Slovenia).
Once the peak was over, activity remained steady at about 7 per hour the next
morning when Robert Hays (United States) recorded 14 Lyrids between 0550-0750
on April 23. The Lyrids slowed down to 1 or 2 per hour as they approached the
end of their activity. Koen Miskotte (Netherlands) observed a total of 7 in
5.17 hours of observing on April 24. And just as he did at the start of the
Lyrid campaign, Salvador Aguirre was able to end this year’s campaign on
April 26 when he saw 6 more Lyrids in 2 hours of observing from Mexico.
APRIL 2009 TOTALS:
Number of Mornings Observed: 12
Number of Hours Observed: 50.58
Showers Observed:
Alpha Bootids: 2
Antihelions: 45
Eta Aquarids: 7
Lyrids: 241
Apex Source, Southern 1
Xi Cygnids 12
Sporadics 293
A complete list of all observations we received is included in Table 1. My
sincere thanks go to the following observers who submitted reports this
month:
Salvador Aguirre, Mexico
Tibor Csorgei, Slovakia
Mark Davis, United States
George Gliba, United States
Robin Gray, United States
Robert Hays, Jr., United States
Ken Hodonsky, United States
Javor Kac, Slovenia
Robert Lunsford, United States
Pierre Martin, Canada
Paul Martsching, United States
Koen Miskotte, The Netherlands
David Oesper, United States
Wesley Stone, United States
David Swann, United States
For further information on meteor observing or future observing campaigns,
please contact me at one of the email addresses below.
Best wishes and clear skies!!
Mark Davis, South Carolina, USA
meteors@comcast.net
namn@namnmeteors.org
North American Meteor Network
http://www.namnmeteors.org
Table 1: North American Meteor Organization Observations – April 2009
DATE OBSERVER LOCATION UT Time Teff F LM ABO ANT ETA LYR NPX SPX XCG SPO
April 16 Salvador Aguirre Hermosillo, Mexico 0635-0736 1.00 1.00 6.00 2 2 5
April 17 Robin Gray Paradise Hill, NV 0802-0904 1.02 1.00 6.26 1 1 9
April 18 Koen Miskotte Ermelo, Netherlands 0035-0110 0.58 1.11 5.66 0 0 4
Koen Miskotte Ermelo, Netherlands 0110-0157 0.78 1.11 6.06 1 1 5
April 19 Tibor Csorgei Bellova Ves, Slovakia 2255-2325 0.50 1.00 6.20 0 3
Tibor Csorgei Bellova Ves, Slovakia 2325-2355 0.50 1.00 6.20 2 0
George Gliba Mathias, WV 0535-0635 1.00 1.11 6.20 2 1 0 0 1 7
Pierre Martin Bootland Farm, Ontario 0545-0651 1.00 1.00 6.00 2 3 1 6
George Gliba Mathias, WV 0635-0735 1.00 1.18 6.20 0 2 0 1 0 8
Pierre Martin Bootland Farm, Ontario 0651-0801 1.00 1.00 6.54 0 2 1 7
April 20 Salvador Aguirre Hermosillo, Mexico 0545-0645 1.00 1.00 6.20 1 2 4
Robin Gray Paradise Hill, NV 0912-1014 1.02 1.00 6.16 2 0 13
Salvador Aguirre Hermosillo, Mexico 1003-1123 1.30 1.00 6.50 1 2 4
April 21 Koen Miskotte Ermelo, Netherlands 2233-2336 1.05 1.00 6.41 2 1 7
Koen Miskotte Ermelo, Netherlands 2336-0038 1.00 1.00 6.41 1 2 4
Koen Miskotte Ermelo, Netherlands 0038-0140 1.00 1.00 6.41 0 6 10
Koen Miskotte Ermelo, Netherlands 0140-0245 1.08 1.00 6.15 0 5 9
April 22 Koen Miskotte Ermelo, Netherlands 2050-2105 0.25 1.00 6.10 0 1 1
Javor Kac Mrzlica, Slovenia 2258-0026 1.08 1.09 6.70 0 8 9
Tibor Csorgei Bellova Ves, Slovakia 0031-0051 0.33 1.00 6.20 0 4 1
Javor Kac Mrzlica, Slovenia 0033-0127 0.90 1.05 6.85 1 9 8
Tibor Csorgei Bellova Ves, Slovakia 0057-0127 0.50 1.00 6.20 2 6 2
Javor Kac Mrzlica, Slovenia 0133-0240 1.10 1.05 6.68 0 10 9
Tibor Csorgei Bellova Ves, Slovakia 0137-0207 0.50 1.00 6.20 1 7 2
Salvador Aguirre Hermosillo, Mexico 0452-1112 4.70 1.00 6.10 6 40 11
David Oesper Dodgeville, WI 0628-1000 3.53 6.30 9 3
Paul Martsching Ames, IA 0630-0730 1.00 1.11 5.60 0 8 2
Mark Davis
Francis Marion National Forest,
SC 0703-0730 0.45 1.00 5.19 0 2 1
Ken Hodonsky Cullom, IL 0710-0745 0.58 1.00 6.20 1 3 5
Mark Davis
Francis Marion National Forest,
SC 0730-0830 1.00 1.00 5.28 1 9 7
Ken Hodonsky Cullom, IL 0745-0821 0.60 1.00 6.21 2 6 5
DATE OBSERVER LOCATION UT Time Teff F LM ABO ANT ETA LYR NPX SPX XCG SPO
Apr. 22 cont Ken Hodonsky Cullom, IL 0827-0906 0.61 1.00 6.15 0 5 6
Wesley Stone Chiloquin, OR 0900-1030 1.48 1.00 6.80 2 20 0 15
David Swann Carrollton, TX 0930-1030 1.00 1.00 4.10 2 2
Robert Lunsford Field Road, CA 1000-1100 1.00 1.00 6.41 0 8 11
Wesley Stone Chiloquin, OR 1030-1140 1.15 1.00 6.75 2 17 1 7
Robert Lunsford Field Road, CA 1100-1145 0.75 1.00 6.26 1 5 11
April 23 Robert Hays Morocco, IN 0550-0650 1.00 1.00 6.30 1 6 6
Robert Hays Morocco, IN 0650-0750 1.00 1.00 6.30 8 4
April 24 Koen Miskotte Ermelo, Netherlands 2120-2220 1.00 1.00 6.31 1 1 0 7
Koen Miskotte Ermelo, Netherlands 2220-2323 1.00 1.00 6.34 1 1 2 6
Koen Miskotte Ermelo, Netherlands 2323-0025 1.03 1.00 6.38 0 1 2 8
Koen Miskotte Ermelo, Netherlands 0029-0135 1.07 1.00 6.30 0 2 3 5
Koen Miskotte Ermelo, Netherlands 0135-0240 1.07 1.00 6.28 0 0 1 13
April 26 Salvador Aguirre Hermosillo, Mexico 0940-1142 2.00 1.00 6.20 4 4 6 6 7

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