[meteorite-list] Meteorite Picture of the Day
Today's Meteorite Picture of the Day: NWA 5229 Contributed by: Hanno Strufe http://www.tucsonmeteorites.com/mpodmain.asp?DD=05/04/2015 __ 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
Re: [meteorite-list] Meteorite Picture of the Day
Tatahouine would have been the perfect meteorite for today's Picture of the Day (Star Wars Day). ;-) --Rob -Original Message- From: Meteorite-list [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Paul Swartz via Meteorite-list Sent: Monday, May 04, 2015 12:00 AM To: meteorite-list@meteoritecentral.com Subject: [meteorite-list] Meteorite Picture of the Day Today's Meteorite Picture of the Day: NWA 5229 Contributed by: Hanno Strufe http://www.tucsonmeteorites.com/mpodmain.asp?DD=05/04/2015 __ 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 __ 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] Meteorite-list Digest, Vol 146, Issue 3
Hi Aziz and List, Thanks for the question. My photos do not clearly show the piece - I do not have my usual camera and my photography skills are lacking. In hand, the piece strongly resembles other weathered NWA pallasites that I have seen. It has a minor oxidation rind that one would expect and there are some areas on the surface where olivine crystals are showing. It is very dense compared to most unclassified stony specimens that I receive (and like the rest in the lot) and it has a high degree of magnetic attraction. I would love to cut it open because I suspect there is some unoxidized metal inside, but my saw is small and underpowered to cut irons or iron-heavy specimens. If the eventual buyer discovers that it is not a pallasite, then I will fully refund their money. I am quite confident this is a pallasite, but I cannot say for certain without having it analyzed and it's just too small to warrant that. I will let it go for $2/g if anyone is interested. 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 - On 5/3/15, MacBook via Meteorite-list meteorite-list@meteoritecentral.com wrote: dear galactic stone your presumed pallasite from nwa doesn't look like a pallasite why you suggest its one, thanks aziz Le 3 mai 2015 à 06:23, meteorite-list-requ...@meteoritecentral.com a écrit : Send Meteorite-list mailing list submissions to meteorite-list@meteoritecentral.com To subscribe or unsubscribe via the World Wide Web, visit https://pairlist3.pair.net/mailman/listinfo/meteorite-list or, via email, send a message with subject or body 'help' to meteorite-list-requ...@meteoritecentral.com You can reach the person managing the list at meteorite-list-ow...@meteoritecentral.com When replying, please edit your Subject line so it is more specific than Re: Contents of Meteorite-list digest... Today's Topics: 1. Meteorite Picture of the Day (valpar...@aol.com) 2. QC ONT, Canada / NJ NY NH PA RI VT, USA Meteor Approx. 2130 EDT 01MAY2015 (drtanuki) 3. Ad - NWA Pallasite, Unclassified Black Chondrite, Vaca Muerta Endcuts, More. (Galactic Stone Ironworks) -- Message: 1 Date: Sat, 2 May 2015 00:00:11 -0700 From: valpar...@aol.com To: meteorite-list@meteoritecentral.com Subject: [meteorite-list] Meteorite Picture of the Day Message-ID: AED782C1D5654E429A201345166B2FFC@Seuthopolis Content-Type: text/plain Today's Meteorite Picture of the Day: Tennasilm Contributed by: Paul Swartz http://www.tucsonmeteorites.com/mpodmain.asp?DD=05/02/2015 -- Message: 2 Date: Sat, 2 May 2015 12:46:09 + (UTC) From: drtanuki drtan...@yahoo.com To: Meteorite Mailing List meteorite-list@meteoritecentral.com Subject: [meteorite-list] QC ONT, Canada / NJ NY NH PA RI VT, USA Meteor Approx. 2130 EDT 01MAY2015 Message-ID: 284542959.230606.1430570769833.javamail.ya...@mail.yahoo.com Content-Type: text/plain; charset=UTF-8 List, QC ONT,Canada / NJ NY NH PA RI VT,USA Meteor Approx. 2130 EDT 01MAY2015 http://lunarmeteoritehunters.blogspot.jp/2015/05/quebec-canada-meteor-01may2015.html Dirk Ross...Tokyo The Latest Worldwide Meteor/Meteorite News http://lunarmeteoritehunters.blogspot.com/ -- Message: 3 Date: Sat, 2 May 2015 13:22:41 -0400 From: Galactic Stone Ironworks meteoritem...@gmail.com To: Meteorite List meteorite-list@meteoritecentral.com Subject: [meteorite-list] Ad - NWA Pallasite, Unclassified Black Chondrite, Vaca Muerta Endcuts, More. Message-ID: CAKBPJW_68Qm1E8Pc_cMWTfe4Qv4hoq2jrJo-LvL_2rHufrH0=w...@mail.gmail.com Content-Type: text/plain; charset=ISO-8859-1 Hi Friends and Collectors, I have two very interesting unclassified pieces that I have pulled from my personal collection. One is a pallasite and the other is a strange black chondrite. As always, use coupon code metlist at checkout for 20% off your entire order. If any of the links are broken, please contact me via email. NWA Pallasite Individual - http://www.galactic-stone.com/product/unclassified-nwa-pallasite--olivine-rich-individual-25g NWA Black Chondrite - http://www.galactic-stone.com/product/unclassified-nwa-black-stone--very-hard-probable-h6-or-h7-19g Vaca Muerta Endcuts and Nuggets - http://www.galactic-stone.com/products?search=vaca+muerta+nugget All new offerings - http://www.galactic-stone.com/products/brand-new?pagesize=24 Thanks for looking and have a great weekend! MikeG -- - Web - http://www.galactic-stone.com Facebook
[meteorite-list] Traffic Around Mars Gets Busy
http://www.jpl.nasa.gov/news/news.php?feature=4572 Traffic Around Mars Gets Busy Jet Propulsion Laboratory May 4, 2015 [Graphic] This graphic depicts the relative shapes and distances from Mars for five active orbiter missions plus the planet's two natural satellites. It illustrates the potential for intersections of the spacecraft orbits. Image Credit: NASA/JPL-Caltech * Five active spacecraft are orbiting Mars, an increase of two since last summer * An enhanced system warns if two orbiters may approach each other too closely NASA has beefed up a process of traffic monitoring, communication and maneuver planning to ensure that Mars orbiters do not approach each other too closely. Last year's addition of two new spacecraft orbiting Mars brought the census of active Mars orbiters to five, the most ever. NASA's Mars Atmosphere and Volatile Evolution (MAVEN) and India's Mars Orbiter Mission joined the 2003 Mars Express from ESA (the European Space Agency) and two from NASA: the 2001 Mars Odyssey and the 2006 Mars Reconnaissance Orbiter (MRO). The newly enhanced collision-avoidance process also tracks the approximate location of NASA's Mars Global Surveyor, a 1997 orbiter that is no longer working. It's not just the total number that matters, but also the types of orbits missions use for achieving their science goals. MAVEN, which reached Mars on Sept. 21, 2014, studies the upper atmosphere. It flies an elongated orbit, sometimes farther from Mars than NASA's other orbiters and sometimes closer to Mars, so it crosses altitudes occupied by those orbiters. For safety, NASA also monitors positions of ESA's and India's orbiters, which both fly elongated orbits. Previously, collision avoidance was coordinated between the Odyssey and MRO navigation teams, said Robert Shotwell, Mars Program chief engineer at NASA's Jet Propulsion Laboratory, Pasadena, California. There was less of a possibility of an issue. MAVEN's highly elliptical orbit, crossing the altitudes of other orbits, changes the probability that someone will need to do a collision-avoidance maneuver. We track all the orbiters much more closely now. There's still a low probability of needing a maneuver, but it's something we need to manage. Traffic management at Mars is much less complex than in Earth orbit, where more than 1,000 active orbiters plus additional pieces of inactive hardware add to hazards. As Mars exploration intensifies, though, and will continue to do so with future missions, precautions are increasing. The new process was established to manage this growth as new members are added to the Mars orbital community in years to come. All five active Mars orbiters use the communication and tracking services of NASA's Deep Space Network, which is managed at JPL. This brings trajectory information together, and engineers can run computer projections of future trajectories out to a few weeks ahead for comparisons. It's a monitoring function to anticipate when traffic will get heavy, said Joseph Guinn, manager of JPL's Mission Design and Navigation Section. When two spacecraft are predicted to come too close to one another, we give people a heads-up in advance so the project teams can start coordinating about whether any maneuvers are needed. The amount of uncertainty in the predicted location of a Mars orbiter a few days ahead is more than a mile (more than two kilometers). Calculating projections for weeks ahead multiplies the uncertainty to dozens of miles, or kilometers. In most cases when a collision cannot be ruled out from projections two weeks ahead, improved precision in the forecasting as the date gets closer will rule out a collision with no need for avoidance action. Mission teams for the relevant orbiters are notified in advance when projections indicate a collision is possible, even if the possibility will likely disappear in subsequent projections. This situation occurred on New Year's weekend, 2015. On Jan. 3, automated monitoring determined that two weeks later, MAVEN and MRO could come within about two miles (three kilometers) of each other, with large uncertainties remaining in the exact passing distance. Although that was a Saturday, automatic messages went out to the teams operating the orbiters. In this case, before the timeline got short enough to need to plan an avoidance maneuver, the uncertainties shrank, and that ruled out the chance of the two spacecraft coming too near each other, Guinn said. This is expected to be the usual pattern, with the advance warning kicking off higher-level monitoring and initial discussions about options. If preparations for an avoidance maneuver were called for, spacecraft commands would be written, tested and approved for readiness, but such commands would not be sent to a spacecraft unless projections a day or two ahead showed probability of a hazardous conjunction. The amount of uncertainty about each
[meteorite-list] Japan Plans To Land Rover on Moon in 2018
http://www.sentinelsource.com/features/technology/japan-plans-to-land-rover-on-moon-in/article_aec6919e-ef32-5b61-8a55-ca7ccacefafd.html Japan plans to land rover on moon in 2018 By Euan McKirdy CNN News Service April 26, 2016 Japan's space agency announced this week that the country would put an unmanned rover on the surface of the moon by 2018, joining an elite club of nations who have explored Earth's satellite. The Japan Aerospace Exploration Agency (JAXA), divulged the plan to an expert panel, including members of the cabinet and the Education, Culture, Sports, Science and Technology Ministry last week. This is an initial step and a lot of procedures are still ahead before the plan is formally approved, a JAXA spokesperson told reporters. If it is approved, the agency will reportedly use its Epsilon solid-fuel rocket technology to carry and deploy a SLIM probe - the acronym stands for Smart Lander for Investigating Moon - on the surface of the celestial body. Japanese media estimates that the mission will cost in the region of $83.4 million to $125 million. JAXA spokesperson Chihito Onda said that this estimate is realistic. The mission is expected to be used to perfect soft-landing technologies, which could be utilized in future, manned expeditions to the moon, or even Mars. The lander will use face recognition software found in digital cameras, which will be repurposed to enable the craft to recognize craters on the surface, Onda said. The move could be seen as Japan's attempt to play catchup to its Asian neighbors China and India, which have both notched significant extraterrestrial victories in recent years - China's Yutu lunar rover outlasted expectations and India successfully put a probe into orbit around Mars. In 2008 Japan put its SELENE craft - known in Japan as Kaguya, after a Japanese moon princess from a 10th century folk tale - into orbit around the moon to gather data about its surface. The data gathered by the orbiter will also be used to calculate a suitable landing site for the rover. JAXA has also put a probe on an asteroid, which returned to Earth in 2010. Along with China, the United States and the former Soviet Union are the only other nations to have so far landed craft on the surface of the moon. __ 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] Mars Odyssey THEMIS Images: April 27 - May 1, 2015
MARS ODYSSEY THEMIS IMAGES April 27 - May 1, 2015 o Angustus Labyrinthus (27 April 2015) http://themis.asu.edu/zoom-20150427a o Proctor Crater Dunes (28 April 2015) http://themis.asu.edu/zoom-20150428a o Dust Devil Tracks (29 April 2015) http://themis.asu.edu/zoom-20150429a o Sirenum Fossae (30 April 2015) http://themis.asu.edu/zoom-20150430a o More Sirenum Fossae (01 May 2015) http://themis.asu.edu/zoom-20150501a 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
