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LEONIDS 2000
EXPEDITION SETUP
November 16/17
PREDICTIONS: Asher&McNaught: -, Lyytinen: 215, Gockel&Jehn:
The weather outlook for the first night was very bad for just about every potential site within 1500 km. We also decided to drive within a radius of 400 km so that we would be home early next day to give ourselves enough time for the peak night.
It turned out that the best prospect was to drive south into Croatia and try to catch a small clearing that would pass in the early morning hours. We did find the clearing but the sky remained up to 50% cloudy so it was unuseable for observations. After driving fo some 250 km in Croatia we gave up and drove home. At Trojane, only 30 km from Ljubljana, at about 3:15UT we found crystal clear skies and watched for 15 minutes. Only one Leonid was seen so there was obviously no exceptionaly high activity going on.
Later we found out from Marco Langbroek of DMS that the activity level was somewhat enhanced with ZHR 25 - 30, about twice the annual activity level.
November 17/18
PREDICTIONS: Asher&McNaught: 100, Lyytinen: 700, Gockel&Jehn: 300
After the unsuccessful first night there was strong determination to find clear skies the second night. We spent most of the time between 8h and 14h local determining the weather pattern over Europe and deciding where to go. After a consultation with a metheorologist athe national weather service we decided to make a 1300 km trip to southern France where the sky would certainly be clear.
After a 6 hour drive we arrived at San Remo, Italy. For most of the way the sky was cloudy and a passport problem prevented us from going to France. After a short observation of the local cloud pattern and a phone call to Marc Gyssens of IMO, we decided to head inland as the clouds were most likely orographic in nature.
At 2h LT we arrived at Triora, some 30 km inland and 700 m high. The sky was predominately clear and it was readily evident there was significant activity from the Leonids.
We could observe from 1:32 to 2:46 UT with the top 5-minute rate 27 LEO, seen by ATAJU during 02:12-02:17UT. Afterwards the cloud cover became too large to make useful observations. We nonetheless saw rates over 1/min in an 80% overcast sky! At around 3:40 UT the sky cleared somewhat. With 60% cloud cover we resumed our observations and observed until 5:13 UT when the cloud cover had decreased to 10%. Unofficial observations lasted until about 5:30 UT when the activity quite obviously began climbing towards the 7:51 UT peak.
MBK Team visual results
MBK Team photographic results
International Meteor Organization analysis
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Leonid meteor storm observations in 2002
Leonid meteor storm observations in 2001
Murphy's Laws of meteor astronomy
International Meteor Organization (IMO)
Unione Astrofili Italiani - sezione meteore (Italy)
Dutch Meteor Society (DMS) (Netherlands)
North American Meteor Network (NAMN) (U.S.A.)
American Meteor Society (AMS) (U.S.A.)
Comets and meteor showers page (Gary W. Kronk) (U.S.A.)
Meteorobs (U.S.A.)
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