----------------- Forward Message ----------------- meteorobs-digest Wednesday, June 4 2003 Volume 04 : Number 1160
(meteorobs) Northsea daylight fireball on May 31 (meteorobs) Northsea daylight fireball update (meteorobs) Meteor Activity Outlook for June 6-12, 2003 ------------------------------------------------------ Date: Tue, 3 Jun 2003 14:45:20 +0200 From: "Marco Langbroek" <[EMAIL PROTECTED]> Subject: (meteorobs) Northsea daylight fireball on May 31 Hi all, I received two reports on a daylight fireball observed from the Netherlands on the evening of May 31, about one hour before sunset. Observation 1 is from Mr. Eijgensteijn from The Hague. He saw the fireball while playing badminton. He notes a duration of 3-4 seconds after which it disappeared behind trees and notes that it was very bright (although it was still daylight!). It had a short tail, the head of the fireball was "cone-shaped" with a bright white color. He estimated an apparent fall angle of about 60 degrees or steeper, going from a sky altitude of about 60 degrees to about 45 degrees in azimuth 170 (south). The second obs. is from mr. Thomas, who was with his sailingyacht on the North Sea, 10 km offshore of IJmuiden harbor. He describes it with some interesting details as: "Five white/light blue stripes (close together), with a number of yellow/orange/red balls at the end. The stripe/flash appeared slightly oblique, fastly towards the water and disappeared some tens of meters [sic] above the water surface" Dr. Laslo Evers informed me that there is an infrasound detection of this fireball, indicating it occurred over the North Sea. See his website: http://www.knmi.nl/~evers The The Hague observation appears to be in the wrong direction compared to the infrasound position. Later that same night, around 2:30-3:00 GMT, another bright meteor has been reported by several chance observers. This too appears to have been a several seconds event. - - Marco Langbroek Dutch Meteor Society - ---------- Drs Marco Langbroek [EMAIL PROTECTED] [EMAIL PROTECTED] http://home.wanadoo.nl/marco.langbroek ------------------------------ Date: Wed, 4 Jun 2003 10:39:20 +0200 From: "Marco Langbroek" <[EMAIL PROTECTED]> Subject: (meteorobs) Northsea daylight fireball update Hi all, An update on the Northsea daylight fireball of May 31, ~ 18:46 UTC. Turns out the The Hague observer inadvertently switched north and south (as the sun made preparations to set at his left side when he was playing badminton and the fireball moved away from him). With that clarified, his azimuth 170 thus must read 350. Incidently, this makes his sightline cross almost exactly at the node of the two infrasound detection lines. I received more info on the sighting from the sailing yacht as well. This yacht was sailing in a sailing competition about 8 nautic miles out of the coast, about 15 nautic miles north of Scheveningen, in direction 169 degrees, as I understand it. The crew saw the fireball pass almost overhead, moving roughly parallel to the coast, from azimuth 180 to azimuth 30, ending at aproximately 60-75 degrees altitude. The exact position of the yacht is still not entirely clear but I hope to get a more exact position later this week. The sightings point to a fragmenting bright and slow fireball (several seconds duration) with an end point close to the node of the infrasound detections (see http://www.knmi.nl/~evers ), coming from the south-southeast, roughly parallel to the Dutch coast. If anything survived, it appears it went down in sea. - - Marco Langbroek (DMS) ---------------- End of Forward Message --------------- __________________________________ Do you Yahoo!? Yahoo! Calendar - Free online calendar with sync to Outlook(TM). http://calendar.yahoo.com ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
