[meteorite-list] AD - St. Patrick's Day Special
Greetings List. Get ready for St. Patrick's day with something a lot better than green beer and funky hats (hint: it's a meteorite). Check it out at www.tucsonmeteorites.com/limerick.asp Thanks for looking. Paul Swartz IMCA 5204 MPOD Web Master free ad #1 of 2 for 2015 __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] BBC Stargazing Live - 20th March
BIMS members will once again be showing meteorites for Stargazing Live as part of the big event at Leicester Racecourse on the 20th. We have been invited by the University of Leicester to be part of their presentationSo far Martin Goff, Luther Jackson and I will be there with parts of our collections on show.. the event is free so just turn up and watch the eclipse from there and then join us to see/handle some space rockslots of other space activities too. http://www.bbc.co.uk/programmes/articles/5TdSYVZCzSp1JDVCXgfdpVq/stargazing-events-2015 Should be a good day. Graham __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Japan's Hayabusa 2 Asteorid Mission Checks Out
http://spaceflightnow.com/2015/03/09/japans-hayabusa-2-asteroid-mission-checks-out/ Japan's Hayabusa 2 asteroid mission checks out by Stephen Clark SpaceFlight Now March 9, 2015 Three months into an interplanetary cruise expected to last three-and-a-half years, Japan's $300 million Hayabusa 2 mission is in good health as it begins an ion-powered pursuit of an asteroid to return a piece of it to Earth. The robotic spacecraft is already traveling more than 20 million miles from Earth after launching Dec. 3, and Japanese officials say the probe has passed health checks and is ready for the long-distance journey ahead. The Hayabusa 2 spacecraft completed its initial functional confirmation period on March 2, 2015, as all scheduled checkout and evaluation of acquired data were completed, the Japan Aerospace Exploration Agency said in a statement. The explorer has been under inspection for about three months after its launch on Dec. 3, 2014. The probe carries four ion thrusters to nudge it on course toward asteroid 1999 JU3, a carbon-rich world just 900 meters - about 3,000 feet - across with a tenuous gravity field 60,000 times weaker than Earth's. The engines produce little thrust, but the units can be operated for thousands of hours, building up energy to reshape Hayabusa 2's path around the sun. JAXA says two of the ion engines will fire for about 400 hours in March to give the spacecraft a boost. Two thrusters will be operated again in early June. The two periods of near-continuous propulsion will change the probe's velocity by about 60 meters per second, or 134 mph, to align Hayabusa 2 with an encounter with Earth in December. The close flyby of Earth will use the planet's gravity to slingshot Hayabusa 2 toward its destination, where it is due to arrive in June 2018 after more firings of the craft's ion engines. Since Hayabusa 2's launch in early December, ground controllers tested the probe's X-band and Ka-band communications systems, batteries, science instruments, reaction wheels, and all four ion engines. Hayabusa 2 also extended its sampling device in preparation for scooping up material at the asteroid. [Graphic] Diagram of the positions of Earth, Hayabusa 2, and asteroid 1999 JU3 as of March 3, 2015. Credit: JAXA Engineers tested Hayabusa 2's German-built lander named MASCOT built by the same team that managed the Philae comet lander, which was carried aboard Europe's Rosetta spacecraft and touched down on comet 67P/Churyumov-Gerasimenko in November. Three other landing craft built in Japan will also descend to the asteroid during Hayabusa 2's mission. The landers are mobile and will use mechanisms to hop across the asteroid to study its environment from several locations. Hayabusa 2 will spend a year-and-a-half at asteroid 1999 JU3, enough time for the probe to pick up rock specimens from three different locations on the unexplored asteroid. Once the mission's work at the asteroid is complete, Hayabusa 2 will leave and head for Earth in December 2019. Hayabusa 2 will release a container with the asteroid samples for a blazing re-entry through Earth's atmosphere for a parachute-assisted landing in the Australian outback in December 2020. __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Perth, Australia Daytime Meteor w/ videos 09MAR2015
List, Perth, Australia Daytime Meteor w/ videos 09MAR2015 http://lunarmeteoritehunters.blogspot.jp/2015/03/perth-australia-daytime-fireball-meteor.html Dirk Ross...Tokyo __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Povenmire's Florida Fireball Patrol
Yes, Hal is still alive, doing wel and still quite active in the realm of tektites especially those from Belize. I can't speak to the Floridal Fireball Patrol's existence. Mendy Ouzillou On Mar 9, 2015, at 8:01 PM, Galactic Stone Ironworks via Meteorite-list meteorite-list@meteoritecentral.com wrote: I ran across a copy of Harold Povenmire's book Fireballs, Meteors, and Meteorites and one chapter talks about the Florida Fireball Patrol - a network of observers who logged fireballs for the purpose of recovering meteorites. I did some searching on the web, but could not find any recent info about this group. Does it still exist? And this may be a silly question, but is Mr. Povenmire still alive and living in Florida? Best regards, MikeG -- - Web - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone Twitter - http://twitter.com/galacticstone Pinterest - http://pinterest.com/galacticstone - __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Povenmire's Florida Fireball Patrol
I ran across a copy of Harold Povenmire's book Fireballs, Meteors, and Meteorites and one chapter talks about the Florida Fireball Patrol - a network of observers who logged fireballs for the purpose of recovering meteorites. I did some searching on the web, but could not find any recent info about this group. Does it still exist? And this may be a silly question, but is Mr. Povenmire still alive and living in Florida? Best regards, MikeG -- - Web - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone Twitter - http://twitter.com/galacticstone Pinterest - http://pinterest.com/galacticstone - __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Met Bulletin Update - NWA Carbonaceous Chondrites and Pallasite
Hi Bulletin Watchers, There are seven new approvals from the NWA DCA. Six are carbonaceous chondrites of various types and one is a pallasite. Link : http://www.lpi.usra.edu/meteor/metbull.php?sea=%2Asfor=namesants=falls=valids=stype=containslrec=50map=gebrowse=country=Allsrt=namecateg=Allmblist=Allrect=phot=snew=2pnt=Normal%20tabledr=page=0 Best regards and Happy Huntings, MikeG -- - Web - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone Twitter - http://twitter.com/galacticstone Pinterest - http://pinterest.com/galacticstone - __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Marquesas Islands Meteorite Mythos
In the beginning, there was nothing. There arose a swelling, a ferment, a black fire, a spinning of vortices, a bubbling, a swallowing - there arose a whole series of pairs of props, posts or piles, large and small, long and short, crooked and bent, decayed and rotten. Similarly, there arose pairs of roots, large and small, long and short, and so forth. There arose countless and infinitely many supports. Above all, there now arose the ground, the foundation, the hard rock, there arose the space for light, there arose ROCKS OF DIFFERENT SORTS. - Marquesas Islanders Myth of Creation (K. Von den Steinen, Reise nach den Marquesas Insein, Verhandl. Ges. Erdkunde zu Berlin, Vol. 25, pp. 489-513, 1898) Best regards, MikeG -- - Web - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone Twitter - http://twitter.com/galacticstone Pinterest - http://pinterest.com/galacticstone - __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorite Picture of the Day
Today's Meteorite Picture of the Day: Brahin Contributed by: Michael Hofmann http://www.tucsonmeteorites.com/mpodmain.asp?DD=03/09/2015 __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Dawn Journal - March 6, 2015
http://dawnblog.jpl.nasa.gov/2015/03/06/dawn-journal-march-6/ Dawn Journal by Marc Rayman March 6, 2015 Dear Unprecedawnted Readers, Since its discovery in 1801, Ceres has been known as a planet, then as an asteroid, and later as a dwarf planet. Now, after a journey of 3.1 billion miles (4.9 billion kilometers) and 7.5 years, Dawn calls it home. Earth's robotic emissary arrived at about 4:39 a.m. PST today. It will remain in residence at the alien world for the rest of its operational life, and long, long after. Before we delve into this unprecedented milestone in the exploration of space, let's recall that even before reaching orbit, Dawn started taking pictures of its new home. Last month we presented the updated schedule for photography. Each activity to acquire images (as well as visible spectra and infrared spectra) has executed smoothly and provided us with exciting and tantalizing new perspectives. While there are countless questions about Ceres, the most popular now seems to be what the bright spots are. It is impossible not to be mesmerized by what appear to be glowing beacons, shining out across the cosmic seas from the uncharted lands ahead. But the answer hasn't changed: we don't know. There are many intriguing speculations, but we need more data, and Dawn will take photos and myriad other measurements as it spirals closer and closer during the year. For now, we simply know too little. For example, some people ask if those spots might be lights from an alien city. That's ridiculous! At this early stage, how could Dawn determine what kinds of groupings Cereans live in? Do they even have cities? For all we know, they may live only in rural communities, or perhaps they only have large states. What we already know is that in more than 57 years of space exploration, Dawn is now the only spacecraft ever to orbit two extraterrestrial destinations. A true interplanetary spaceship, Dawn left Earth in Sep. 2007 and traveled on its own independent course through the solar system. It flew past Mars in Feb. 2009, robbing the red planet of some of its own orbital energy around the sun. In July 2011, the ship entered orbit around the giant protoplanet Vesta, the second most massive object in the main asteroid belt between Mars and Jupiter. (By the way, Dawn's arrival at Vesta was exactly one Vestan year ago earlier this week.) It conducted a spectacular exploration of that fascinating world, showing it to be more closely related to the terrestrial planets (including Earth, home to many of our readers) than to the typical objects people think of as asteroids. After 14 months of intensive operations at Vesta, Dawn climbed out of orbit in Sep. 2012, resuming its interplanetary voyage. Today it arrived at its final destination, Ceres, the largest object between the sun and Pluto that had not previously been visited by a spacecraft. (Fortunately, New Horizons is soon to fly by Pluto. We are in for a great year!) What was the scene like at JPL for Dawn's historic achievement? It's easy to imagine the typical setting in mission control. The tension is overwhelming. Will it succeed or will it fail? Anxious people watch their screens, monitoring telemetry carefully, frustrated that there is nothing more they can do now. Nervously biting their nails, they are thinking of each crucial step, any one of which might doom the mission to failure. At the same time, the spacecraft is executing a bone-rattling, whiplash-inducing burn of its main engine to drop into orbit. When the good news finally arrives that orbit is achieved, the room erupts! People jump up and down, punch the air, shout, tweet, cry, hug and feel the tremendous relief of overcoming a huge risk. You can imagine all that, but that's not what happened. If you had been in Dawn mission control, the scene would have been different. You would mostly be in the dark. (For your future reference, the light switches are to the left of the door.) The computer displays would be off, and most of the illumination would be from the digital clock and the string of decorative blue lights that indicate the ion engine is scheduled to be thrusting. You also would be alone (at least until JPL Security arrived to escort you away, because you were not cleared to enter the room, and, for that matter, how did you get past the electronic locks?). Meanwhile, most of the members of the flight team were at home and asleep! (Your correspondent was too, rare though that is. When Dawn entered orbit around Vesta, he was dancing. Ceres' arrival happened to be at a time less conducive to consciousness.) Why was such a significant event treated with somnolence? It is because Dawn has a unique way of entering orbit, which is connected with the nature of the journey itself. We have discussed some aspects of getting into orbit before (with this update to the nature of the approach trajectory). Let's review some of it
[meteorite-list] Mars Odyssey THEMIS Images: March 2-6, 2015
MARS ODYSSEY THEMIS IMAGES March 2-6, 2015 o Elysium Planitia Crater - False Color (02 March 2015) http://themis.asu.edu/zoom-20150302a o Ceti Mensa - False Color (03 March 2015) http://themis.asu.edu/zoom-20150303a o Marth Crater - False Color (04 March 2015) http://themis.asu.edu/zoom-20150304a o Acidalia Planitia - False Color (05 March 2015) http://themis.asu.edu/zoom-20150305a o Reull Vallis (06 March 2015) http://themis.asu.edu/zoom-20150306a All of the THEMIS images are archive here: http://themis.asu.edu/latest.html NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in co.oration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena. __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
