[meteorite-list] Fwd: Bavarian EN060402 bolide
- Doorgestuurd bericht van Pavel Spurny [EMAIL PROTECTED] - Datum:Thu, 18 Apr 2002 00:46:43 +0200 Van:Pavel Spurny [EMAIL PROTECTED] Antwoord aan:Pavel Spurny [EMAIL PROTECTED] Onderwerp[IMO-News] EN060402 bolide Aan:IMO-NEWS [EMAIL PROTECTED] Dear all, I am sending you the information about the results on the EN060402 bolide which was observed by many people over a large teritorry of Central Europe. As you can read below, it was a really exceptional case. The April 6, 2002 fireball A very bright fireball illuminated large territory of Western Austria and Southern Bavaria on Saturday evening, April 6 at 22:20:18 local time (UT+2h). The fireball was observed by many casual witnesses over the territory of almost whole Central Europe, but most observations were reported from Bavaria and Western Austria. Except of numerous visual observations, the fireball was recorded by several kinds of scientific instruments. The most important records were obtained by the systematic long-term observational photographic program - the European Fireball Network (EN). The records were taken at 5 German, one Czech and one Austrian station of the EN. Each of these stations is equipped with one all-sky camera, which is open whole night and whole sky is photographed on one image. The German and Austrian stations are equipped with mirror all-sky cameras and are operated by the German Aerospace Center DLR, Berlin. The Czech stations of the EN are equipped with very precise Zeiss Distagon fish-eye objectives and are operated by the Astronomical Institute of the Academy of Sciences of the Czech Republic, Ondrejov. Most Czech stations had cloudy skies on April 6, however. The photographic records are most important for exact determination of the fireball atmospheric trajectory, including prediction of meteorite impact area and derivation of heliocentric orbit. In addition to these photographic data, the fireball was recorded by three radiometric systems placed in the Czech Republic at Ondrejov Observatory and Kunzak station, which gives us basic information about light curve and maximum brightness of the fireball and about exact time of the event. Furthermore the fireball was recorded by at least at two infrasound stations, one located at Freyung, Germany (see http://www.seismologie.bgr.de) and second at Deelen, The Netherlands (see http://www.knmi.nl/~evers/infrasound/events/020406/bavaria-bolide.html) and also at several seismic stations from Austria, Southern Germany and Switzerland. All data presented below are based only on above-mentioned photographic and radiometric data recorded within the EN observing program and are very close to final values. All records were measured, reduced and all computations were performed at the Ondrejov Observatory, the headquarters of the European Fireball Network. The fireball started its almost 92 km long luminous trajectory at an altitude of 85.6 km about 15 km NE from Innsbruck, Austria (longitude 11.564 deg E, latitude 47.304 deg N). Maximum brightness of about -18 absolute magnitude was reached in a bright flare at a height of 21 km near Garmisch-Partenkirchen, Germany (longitude 10.91 deg E, latitude 47.51 deg N). The fireball terminated at an altitude of only 15.8 km about 20 km W from Ga-Pa (longitude 10.85 deg E, latitude 47.53 deg N). Such deep penetration of a fireball is very scarce and this fireball belongs to the deepest ever-photographed fireballs in the history. It also implicates, that some part of the initial mass survived the ablation processes in the atmosphere and landed on the ground as meteorites. The slope of the atmospheric trajectory to the Earth's surface was 49.5 degrees. The fireball entered the atmosphere with the velocity of 20.9 km/s and during its flight substantially decelerated to the final value of only 4 km/s, when ablation process was stopped. According to the dynamic behavior in the atmosphere this fireball belongs to the fireball type I, which is usually identified with stony material, mostly ordinary chondrites. The initial dynamic mass of the entering meteoroid was about 500 kg and most of this mass was ablated and only about 30 kg of total mass could land on the ground in several fragments. The impact area is relatively large, it is at least several kilometers long and about 1km wide. The main fragments will lie eastwards from Schwangau, Germany. Smaller fragments could be found also around the Austria-Germany border westwards from Ga-Pa. The whole area is located in high mountains (the Alps), which is unfortunately very unfavorable for any systematic search. From the exact time of the fireball occurrence, its initial velocity, and the position of the radiant, we computed the heliocentric orbit. We found that the body, before its collision with Earth, orbited the Sun on an elliptic orbit defined by the following orbital elements: semimajor axis 2.4 AU, eccentricity 0.67, perihelion distance 0.79 AU,
[meteorite-list] Looking for Baszkowka
Hello list, I'm looking for a slice or fragment of the Baszcowka L5 fell in Poland in 1994. Size: 5-30 grams. (Purchase or trade, is the same for me) Best regards, Vincent Jacques. From: "Jay Haynes" <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: [meteorite-list] Strange Allende inclusion Date: Wed, 17 Apr 2002 10:27:31 -0400 Rejoignez le plus grand service de messagerie au monde avec MSN Hotmail. Cliquez ici.---BeginMessage--- hi list, I was looking over an Allende slice from my collection last night with a 10x loupe and notice quite a lrge metal flake (well large for Allende and it is visible to naked eye) and it looked sort of gold in color. I was wondering is this normal for Allende or could it be from the saw? Does not look like rust but could be oxidized iron.Clear Skies Happy Hunting, Jay Haynes IMCA Member #:6905 www.geocities.com/cdnastronomer/meteorite.html Chat with friends online, try MSN Messenger: Click Here __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list ---End Message---
[meteorite-list] In SOHO's Pictures, Watch A Comet Passing Near The Sun
ESA Science News http://sci.esa.int 17 Apr 2002 In SOHO's pictures, watch a comet passing near the Sun Between now and Saturday, 20 April, you can follow via the Internet the progress of the new-found Comet SOHO-422. Usually, comets seen by the SOHO spacecraft quickly burn up in the Sun's hot atmosphere. This one won't, so there is still time to monitor its progress. Like most of the hundreds of comets found with the ESA-NASA sun-watching spacecraft, SOHO-422 was first noticed by an amateur astronomer. Pictures from SOHO are made available, freely and rapidly, on the Internet. People all around the world look especially at images from the LASCO C3 instrument, which covers the widest region of space, hoping for the honour of winning the race to spot the next incoming comet. In this case XingMing Zhou of China was the sharp-eyed discoverer of what is officially designated as Comet 2002 G3 (SOHO). An animation of successive images of the comet (see link) shows it entering from the bottom left and following a curved track upwards. It passed behind a pillar that holds the mask blocking direct sunlight. This morning, 17 April, the comet made its closest approach to the Sun. In the next few days it will continue upwards and to the right before moving out of the field of view. Caution: This comet is visible only with SOHO's special equipment. Do NOT try to see it by looking at the Sun for yourself -- the brightness will damage your eyes! SOHO is a project of international cooperation between ESA and NASA. The spacecraft was built in Europe for ESA, equipped with instruments by teams of scientists in Europe and the USA, and launched by NASA December 1995. USEFUL LINKS FOR THIS STORY * Latest images from SOHO (comet is in LASCO C3) http://sohowww.nascom.nasa.gov/data/realtime-images.html * Animation of past images of Comet SOHO-422 (asf; 80 kb) http://spdext.estec.esa.nl/content/searchvideo/searchresult.cfm?aid=14cid=37ooid=29830returnto=1ftitle=customsearch=0 * The Sun now http://www.esa.int/export/esaCP/ASE08Y9KOYC_Protecting_0.html * SOHO home page http://sci.esa.int/home/soho/ * How to discover comets with SOHO http://sungrazer.nascom.nasa.gov/ * SOHO's private view of a sunbathing comet http://sci.esa.int/content/news/index.cfm?aid=14cid=37oid=29213 * SOHO's unique view of a comet that fell to pieces http://sci.esa.int/content/news/index.cfm?aid=14cid=37oid=27088 * SOHO analyses a kamikaze comet http://sci.esa.int/content/news/index.cfm?aid=14cid=37oid=26188 IMAGE CAPTION: [http://sci.esa.int/content/searchimage/searchresult.cfm?aid=14cid=12oid=29838ooid=29829] LASCO C3 image taken on 16 April 2002 at 17:18. The comet is the small white streak to the left of the Sun. The white ring in the middle of the picture shows the size of the Sun, which is hidden behind the round mask blocking its direct rays. Credit: SOHO/LASCO (ESA NASA) See also the movie of the Comet SOHO-422 (asf; 80 kb). __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Anyone Seen Russ?
Hi List, Has anyone been in conatct with Russ from NEMS recently? I been trying to e-mail him for a week but no replies. Take Care, Jay _ Join the worlds largest e-mail service with MSN Hotmail. http://www.hotmail.com __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Stardust Sets New Distance Record
http://stardust.jpl.nasa.gov Stardust Sets New Distance Record April 18, 2002 Since its launch on February 7, 1999, the Stardust spacecraft has traveled over two billion kilometers completing one and a half elliptical orbits around the Sun. On Thursday, April 18th, the mission will reach a major milestone when it arrives at its furthest distance from the Sun, also known as its aphelion. At this time the spacecraft will be 2.72 Astronomical Units (407 million kilometers or 253 million miles) from the Sun, and near the middle of the asteroid belt. This is the farthest distance ever reached by a solar-powered spacecraft. Far beyond the orbit of Mars, the sunlight intensity is only 13% of what we see at Earth resulting in very cold temperatures and diminished power generation by the spacecraft's solar cells. The spacecraft is performing excellently in this environment and operations teams at the Jet Propulsion Laboratory, California and Lockheed Martin Astronautics, Denver are eager to enter the final phases of the mission. After aphelion, Stardust will begin falling back towards the Sun and by the end of the mission, in January 2006, it will have completed another loop and a half around the Sun. On January 2, 2004, on its final solar orbit, Stardust will fly past comet Wild 2 to collect samples and return them to Earth in 2006. In January 2006, the samples will be delivered by parachute inside the Stardust Sample Return Capsule to the Utah Testing and Training Range. The comet samples that Stardust will be collecting and returning to Earth have been preserved since the early formation of the Solar System. During the Solar System's formation, they accumulated to form comets beyond the orbit of Neptune and they are believed to be the initial building blocks of planets and life as we know it. The returned samples from Stardust will be distributed world wide to scientists who will study them with the best microanalytical techniques available. The mission will provide fundamental insights into the nature of materials that aided in the formation of planets, both in the solar system and around other stars. __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Strange Allende inclusion
Jay Haynes wrote: From the looks of the inclusion it is a sulfide (brass colored about 1mm in length and half a mm in width). I am 100% sure it is a slice of Allende as I just got it from [...] Looking over the slice I see many more brass colored metal flakes in it but much smaller as well as some ordinary metallic flake in the matrix as well as from the looks of it (not too sure at this moment) also in the chondrules. Hello Jay and List, This description still leaves me a little puzzled as there should not be anything like metal flakes and mm-sized brassy inclusions. I've been looking at my six Allende slices (the largest having a diameter of more than 2 inches) but the only features I could detect that somewhat resemble your description are orange-colored specks and a look at figure 6.6 (an Axtell specimen in full color!) in O.R. Norton's CEM (p. 107) says: Weathering of the meteorite has altered some of the chondrules turning them an o r a n g e color. There should be so many Allende slices in our collections that it would be interesting to hear more about what Jay observed from other list members! Best regs, Bernd __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] name that tune 4 free gao!
this list seems to have a great taste in music, so i wanna know who knows what. the first person who can email me the correct name of the song, artist, album that contains the following lyrics will win a 2.5g macro of gao(off the same piece rhett's came from[and it has already been sent rhett-you should have it thurs.]) but here's the catch: you have to send me something self-addressed/ stamped to get it back to you-still a great deal for your musical expertise. you get it right, s.a.s. whatever, i stuff in NICE 2.5 g gao macro-basically a free skyroc! have fun! here goes- line after line , round after round, empty shells fall to the ground. faster that lightning, high as a kite , sonic bombardment; brighter than sunlight.Get your FREE download of MSN Explorer at http://explorer.msn.com. __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] name that tune 4 free gao!
KMFDM: 'Angst', A Drug against War, Sascha Konietzko and others. Thomas H. Webb On Thu, 18 Apr 2002, harlan trammell wrote: this list seems to have a great taste in music, so i wanna know who knows what. the first person who can email me the correct name of the song, artist, album that contains the following lyrics will win a 2.5g macro of gao(off the same piece rhett's came from[and it has already been sent rhett-you should have it thurs.]) but here's the catch: you have to send me something self-addressed/ stamped to get it back to you-still a great deal for your musical expertise. you get it right, s.a.s. whatever, i stuff in NICE 2.5 g gao macro-basically a free skyroc! have fun! here goes- line after line , round after round, empty shells fall to the ground. faster that lightning, high as a kite , sonic bombardment; brighter than sunlight. Get your FREE download of MSN Explorer at http://explorer.msn.com. __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] name that tune
we have a winner! artist: kmfdm, song: drug against war, album: angst. stay tuned for more! got a few more macros to saw off b4 it gets to small to hold. _ Chat with friends online, try MSN Messenger: http://messenger.msn.com __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] name that tune 4 free gao!
I think it's KMFDM, A drug against War Hope it's correct Andrei - Original Message - From: harlan trammell To: [EMAIL PROTECTED] Sent: Thursday, April 18, 2002 11:02 PM Subject: [meteorite-list] name that tune 4 free gao! this list seems to have a great taste in music, so i wanna know who knows what. the first person who can email me the correct name of the song, artist, album that contains the following lyrics will win a 2.5g macro of gao(off the same piece rhett's came from[and it has already been sent rhett-you should have it thurs.]) but here's the catch: you have to send me something self-addressed/ stamped to get it back to you-still a great deal for your musical expertise. you get it right, s.a.s. whatever, i stuff in NICE 2.5 g gao macro-basically a free skyroc! have fun! here goes- line after line , round after round, empty shells fall to the ground. faster that lightning, high as a kite , sonic bombardment; brighter than sunlight. Get your FREE download of MSN Explorer at http://explorer.msn.com.__ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Large Bolide of April 6
An enthusiastic Vincent Jacques wrote: Bavaria Bolide: the same orbit as Pribram Hello All! Let's have a look at the respective velocities and orbital elements: Pribram (H5) Date: 1959, Apr 07, 19.30 U.T. (20.30 MEZ/21.30 MESZ) Entry velocity: 20.9 km/s Terminal velocity: ca. 7 km/s End point: 13.3 km Slope: 43° Initial mass: 21500 kg (O.R. Norton, CEM, p. 40) Terminal mass: 50 kg - only 5.6 kg found (O.R. Norton, CEM, p. 40) Semimajor axis a: 2.42 AU Eeccentricity e: 0.67 Perihelion distance q: 0.79 AU Inclination i: 10.4° Aphelion Q: ca. 4 AU (Hilda population) Length of luminous trajectory: ca. 124 km Bavarian bolide: Date: 2002, Apr 06, 20:20 U.T. (21.20 MEZ/22.20 MESZ) Entry velocity: 20.9 km/s Terminal velocity: ca. 4 km/s End point: 15.8 km Slope: 49.5° Initial mass: 500 kg (estimated!) Terminal mass: 30 kg (estimated!) Semimajor axis a: 2.4 AU Eeccentricity e: 0.67 Perihelion distance q: 0.79 AU Inclination i: 11.4° Aphelion Q: 4.05 AU (Hilda population) Length of luminous trajectory: ca. 92 km Maximum brightness: ca. -18 (Full moon = -12 mags!) A truly striking resemblance !!! Bernd __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Discover A Comet While On The Internet With SOHO
Dolores Beasley Headquarters, WashingtonApril 18, 2002 (Phone: 202/358-1753) Bill Steigerwald Goddard Space Flight Center, Greenbelt, Md. (Phone: 301/286-5017 RELEASE: 02-71 DISCOVER A COMET WHILE ON THE INTERNET WITH SOHO A new comet was discovered over the Internet by a Chinese amateur astronomer visiting the website for the Solar and Heliospheric Observatory (SOHO) spacecraft. The comet C/2002 G3 (SOHO) was first reported on Friday, April 12, by XingMing Zhou of BoLe city, in the XinJiang province of China, who discovered the comet while watching SOHO real-time images of the Sun on the Internet. The comet is a new comet, not belonging to any known group. SOHO, launched over six years ago as a project of international cooperation between the European Space Agency (ESA) and NASA, has discovered more than 420 comets in just under six years. This makes the spacecraft the most prolific comet finder in the history of astronomy. Most of the comets were first spotted by amateurs around the world who downloaded SOHO's real-time images to their home computers. Anyone with Internet access can take part in the hunt for new comets and be a comet discoverer. From September 2000 to now I have been trying to find SOHO comets, and I've discovered 13 comets, one of which, designated '2001U9' and initially cataloged by the SOHO project as 'SOHO-367,' was the brightest one in the last two years, said Zhou, who previously spent more than 1,600 hours since his 1985 graduation scanning the heavens with his 15cm F/5.3 reflector telescope to discover a single comet. What's exciting about these near-sun comets is that we are exploring a population of comets that has never been seen before because they are very small and faint, said Douglas Biesecker, a solar physicist with L3 Com Analytics Corporation, Vienna, Va. By the time their orbits take them close to the Sun so they become bright, they are lost in the Sun's glare and require a space-based coronagraph like that on SOHO to be seen. Biesecker, who is affiliated with the SOHO program at NASA's Goddard Space Flight Center in Greenbelt, Md., confirms potential comet discoveries as they are posted to the SOHO website. C/2002 G3 (SOHO) will be visible in SOHO's Large Angle and Spectrometric Coronagraph (LASCO) C3 images until Saturday, April 20. The comet was first visible late in the day on Thursday, April 11. It entered the field of view at the bottom edge, almost directly under the Sun. It is moving upward to the left, and will eventually move back toward the right, exiting from the LASCO C3 field of view at the top edge, to the right of the Sun. First cataloged by the SOHO project as SOHO-422, it has been officially designated C/2002 G3 (SOHO) by the International Astronomical Union. The comet reached the point closest to the Sun in its orbit on April 17 at about 1:30 a.m. Eastern Daylight Time, at a distance of about 7.6 million miles (12.3 million kilometers). As the week goes on, the comet will move through the field of view more quickly. In all these images, the shaded disk is a mask in the instrument that blots out direct sunlight, making faint comets and the dim outer atmosphere of the Sun, or the corona, visible. The white circle added within the disk shows the size and position of the visible Sun. Solar radiation heats the comet, which in turn causes the outgassing of its water molecules and dust. The dust scatters sunlight at visible wavelengths, making the comet bright in LASCO images. The water molecules break down into oxygen and hydrogen atoms, and the hydrogen atoms interact with the coronal plasma (electrified gas that comprises the extended atmosphere of the Sun). All the SOHO images are freely available on the SOHO web site: http://sohowww.nascom.nasa.gov/ More information about sun-grazing comets and how to spot new ones can be found at: http://sungrazer.nascom.nasa.gov/ Images and movies of the comet's passage are available at: http://soho.nascom.nasa.gov/hotshots/2002_04_15/ -end- __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Ebay auctions ending tonight
http://members.ebay.com/aboutme/catchafallingstar.com/ Jim Strope421 Fourth StreetGlen Dale, WV 26038 Freshest and only oriented Lunar meteorite on earth: http://208.55.105.193/nwa482sale.htm
[meteorite-list] Change in my ISP
Hello All, After several months of poor service with my previous ISP, I have made a change. Please not that my new email address is: [EMAIL PROTECTED] regards, John Gwilliam John Gwilliam Meteorites PO Box 26854 Tempe AZ 85285 http://www.meteoriteimpact.com __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
