Re: [meteorite-list] Geophysics, meteorites, and Electron microscopy-QUESTION
Hi Shawn, It's actually the electron microprobe that gives the quantitative analyses needed for classification of stony meteorites. The data is usually output in tables of oxide component concentrations in weight percent, totalling hopefully, to approximately 100%. The microprobe software lets you select which elements (expressed as oxides) to analyze and assign the element to one of the probe's spectrometers. The software will also give atomic concentrations to check for mineral stoichiometry. For metals and sulfides the output is usually in element percent. Calibration of the probe against known standards (minerals or compounds similar to what are in your meteorite) precedes the microprobe session and can take several hours. Once the probe is calibrated, you are good to go on your first unknown meteorite that would normally be in a polished thin section or polished epoxy-cast probe mount. Because the calibration is time consuming it is economical to do several samples in a single session. Sessions can go on for hours, and you can even set up a collection of x-y coordinates and let the auto-feature of the probe analyze different spots all night long. In the morning a stack of data would be be waiting for your perusal and evaluation. Of course there are other tests and analyses that contribute to a high quality meteorite classification, which include visual textural information from both polarizing microscope and SEM observation (e.g. shock effects, percent mineral make-up, weathering), and of course macroscopic characteristics seen in the hand sample. Oxygen isotopes are also great to have, especially as a court of appeals for borderline cases or for anomalous meteorites that don't fall into clear-cut geochemical groups. There are many other techniques such as isotopic age dating, cosmic ray exposure, bulk trace element analyses, and so on that enhance the characterization of a stony meteorite, but the electron microprobe is the work horse for most classification data. Someone who has done work on Ensisheim (LL6) and Saint-Séverin (LL6) could give a better answer that I can about the their subtle differences and whether the microprobe can distinguish between them, but my guess would be yes, especially when combined with SEM imaging. The length of time for classification from start to finish, including the write-up is variable. The initial ID or categorization of an unknown doesn't have to take long, that's what emerges in the first hour or so of microprobe analysis. But often, for a water-tight, authoritative classification, a second probe session may be required. Plus a lot of the time is spent puuzzling through the data and narrowing down the possibilities. It's like detective work, and personally I find it immensely engaging. Hope this helps, Carl Agee -- Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://epswww.unm.edu/iom/pers/agee.html - On Wed, Sep 7, 2011 at 4:47 PM, Shawn Alan photoph...@yahoo.com wrote: Hello Carl and Listers Great post on scanning electron microscope (SEM) process, now does this process also ID the whole classification of the meteorite which is used for classifying meteorite for the Meteoritcal Bulletin database? I know alot of school are discontinuing classifying meteorites is UNM also doing the same? Question if someone wanted this service to be done on a meteorite, how much would it cost, cause these days money talks and helps everyone out when it comes to classifying meteorites or confirming that the meteorite is the meteorite suggested to be. Also can this process determine the difference between Ensisheim (LL6) and Saint-Séverin (LL6) by the cosmic ray exposure or terrestrial age. These two meteorites look identical and some can fake it. Does SEM also cover that test or is that a different test? Lastly how long does it take for you to classify a new meteorite from start to finish if its a stony meteorite? Shawn Alan IMCA 1633 eBaystore http://shop.ebay.com/photophlow/m.html [meteorite-list] Geophysics, meteorites, and Electron microscopyCarl Agee agee at unm.edu Tue Sep 6 12:27:18 EDT 2011 Previous message: [meteorite-list] Geophysics, meteorites, and Electron microscopy Next message: [meteorite-list] FW: High Noon! Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] A scanning electron microscope (SEM) is great for high magnification images that also contain information about the chemical composition of the different minerals in meteorites. SEM is also a quick way to do a qualitative analysis of a sample, say for example, detecting nickel in iron meteorites with energy
Re: [meteorite-list] Ad. special offer at amazon.com on gold polished cube $8.00, yes thats right 8 dollars.
Rex, Can you please take your business dealings off List. It is great that International shipping issues on your/or?? sales sites are being taken care of, but this is TOO MUCH transparency no matter where you live!! BTW - I love Rex's scale cubes, I have been including certain custom ones with purchases of my NWA 6704! Great job, Rex...Keep up the great work...Just figure out the shipping bugs and you will be alright!!! :) Best Regards, Greg Greg Hupé The Hupé Collection gmh...@centurylink.net www.LunarRock.com NaturesVault (eBay) AncientDiscoveries (eBay)(formerly 'NaturesVault') IMCA 3163 Click here for my current eBay auctions, I have two accounts now: 1) NaturesVault - http://search.ebay.com/_W0QQsassZnaturesvault 2) AncientDiscoveries (formerly 'NaturesVault') - http://shop.ebay.com/ancientdiscoveries/m.html?_dmd=1_ipg=50_sop=12_rdc=1 -Original Message- From: rexsca...@comcast.net Sent: Wednesday, September 07, 2011 11:53 PM To: drtanuki Cc: meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] Ad. special offer at amazon.com on gold polished cube $8.00, yes thats right 8 dollars. Anyone willing to let this guy use your address? I will send it to him direct to Japan for the same price but Amazon uses USA only shipping addresses. Anyone can create an account. 13 left at this price. -Rex - Original Message - From: drtanuki drtan...@yahoo.com To: rexsca...@comcast.net Sent: Wednesday, September 7, 2011 8:44:25 PM Subject: Re: [meteorite-list] Ad. special offer at amazon.com on gold polished cube $8.00, yes thats right 8 dollars. Thank you! Tried to order on Amazon but it will NOT ship to Japan. Please if you are going to offer something on the metlist mention that this is for US sales only. Frustrated. Dirk Ross...Tokyo --- On Thu, 9/8/11, rexsca...@comcast.net rexsca...@comcast.net wrote: From: rexsca...@comcast.net rexsca...@comcast.net Subject: [meteorite-list] Ad. special offer at amazon.com on gold polished cube $8.00, yes thats right 8 dollars. To: meteorite-list@meteoritecentral.com Date: Thursday, September 8, 2011, 12:16 PM special limited deal on polished gold scale cubes. (1 per person only) 8 Dollars plus standard Amazon.com shipping cost. They have the nicest Aesthetics of any cubes. (look at listing to see what I mean) I need to do this So I can get my father inlaws new amazon.com account a minimum number of sales so he qualifies to sell in the toy category for the holidays. Limited one per person. (the number for sale is capped at about 20 cubes) They will be shipped within 1 day of getting the order. In case you care he sells custom made brass railroad parts for trains and lights. Amazon.com requires like 20 sales in the next few weeks. http://www.amazon.com/gp/product/B005LRSL6C/ref=olp_product_details?ie=UTF8meseller or just type 1cm scale cube at amazon.com thats me So buy a polished gold scale cube at a price you will never see again and help my father inlaws amazon.com account achieve its min number of sales before the deadline. -Rex Scates seller of scale objects, tungsten carbide rings,fire opal inlay jewelry, and other misc things. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] MRO HiRISE Images - September 7, 2011
Thank you for all your posts to the list Ron. They really are one of the things that make it great! If it wasn't for today's post I would never have seen such a unique view of Mars such as this: http://hirise.lpl.arizona.edu/ESP_023464_0945 Cheers, Jeff Kuyken Meteorites Australia www.meteorites.com.au Vice President - I.M.C.A. Inc. www.imca.cc -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Ron Baalke Sent: Thursday, 8 September 2011 9:34 AM To: Meteorite Mailing List Subject: [meteorite-list] MRO HiRISE Images - September 7, 2011 MARS RECONNAISSANCE ORBITER HIRISE IMAGES September 7, 2011 o Gullies and Lobate Material in a Crater in Nereidum Montes http://hirise.lpl.arizona.edu/ESP_023173_1405 This crater has gullies on its southwest-facing walls and rim, as well as and what appears to be two separate instances of ear-shaped material associated to its interior gullies. o Iazu Crater http://hirise.lpl.arizona.edu/ESP_023237_1775 These crater walls, which are well exposed,may provide a regional context for the Opportunity rover's studies of Endeavour Crater. o Carbon Dioxide Ice in the Late Summer http://hirise.lpl.arizona.edu/ESP_023464_0945 For most of the year these walls are covered with bright frost, but they defrost and show their true colors at the end of the summer. o Fan and Dust Devil in Deuteronilus Mensa http://hirise.lpl.arizona.edu/ESP_023671_2270 The dust devil is an example of the ongoing processes that continue to shape the surface of Mars. All of the HiRISE images are archived here: http://hirise.lpl.arizona.edu/ Information about the Mars Reconnaissance Orbiter is online at http://www.nasa.gov/mro. The mission is managed by NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology, for the NASA Science Mission Directorate, Washington, D.C. Lockheed Martin Space Systems, of Denver, is the prime contractor and built the spacecraft. HiRISE is operated by the University of Arizona. Ball Aerospace and Technologies Corp., of Boulder, Colo., built the HiRISE instrument. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] MRO HiRISE Images - September 7, 2011
Ron, Yes! Jeff has said... Thank you for all of your posts to the List, Ron. They really are one of the things that make it great!. I thank you also. It is an educational treat to be on Mars and your posts have priority whenever I open my mail. Your othe posts on our activities in the solar system and beyond are a treat also. Count Deiro IMCA 3536 -Original Message- From: Jeff Kuyken i...@meteorites.com.au Sent: Sep 8, 2011 3:29 AM To: 'Ron Baalke' baa...@zagami.jpl.nasa.gov, 'Meteorite Mailing List' meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] MRO HiRISE Images - September 7, 2011 Thank you for all your posts to the list Ron. They really are one of the things that make it great! If it wasn't for today's post I would never have seen such a unique view of Mars such as this: http://hirise.lpl.arizona.edu/ESP_023464_0945 Cheers, Jeff Kuyken Meteorites Australia www.meteorites.com.au Vice President - I.M.C.A. Inc. www.imca.cc -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Ron Baalke Sent: Thursday, 8 September 2011 9:34 AM To: Meteorite Mailing List Subject: [meteorite-list] MRO HiRISE Images - September 7, 2011 MARS RECONNAISSANCE ORBITER HIRISE IMAGES September 7, 2011 o Gullies and Lobate Material in a Crater in Nereidum Montes http://hirise.lpl.arizona.edu/ESP_023173_1405 This crater has gullies on its southwest-facing walls and rim, as well as and what appears to be two separate instances of ear-shaped material associated to its interior gullies. o Iazu Crater http://hirise.lpl.arizona.edu/ESP_023237_1775 These crater walls, which are well exposed,may provide a regional context for the Opportunity rover's studies of Endeavour Crater. o Carbon Dioxide Ice in the Late Summer http://hirise.lpl.arizona.edu/ESP_023464_0945 For most of the year these walls are covered with bright frost, but they defrost and show their true colors at the end of the summer. o Fan and Dust Devil in Deuteronilus Mensa http://hirise.lpl.arizona.edu/ESP_023671_2270 The dust devil is an example of the ongoing processes that continue to shape the surface of Mars. All of the HiRISE images are archived here: http://hirise.lpl.arizona.edu/ Information about the Mars Reconnaissance Orbiter is online at http://www.nasa.gov/mro. The mission is managed by NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology, for the NASA Science Mission Directorate, Washington, D.C. Lockheed Martin Space Systems, of Denver, is the prime contractor and built the spacecraft. HiRISE is operated by the University of Arizona. Ball Aerospace and Technologies Corp., of Boulder, Colo., built the HiRISE instrument. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] MRO HiRISE Images - September 7, 2011
Hi Everyone, To be candid, while I heartily share Jeff's appreciation for Ron's ongoing contributions, I don't always take a look--which was the case in this instance. Jeff's note, however, compelled me to revisit and this is indeed a truly breathtaking image. With gratitude to you both / Darryl On Sep 8, 2011, at 6:29 AM, Jeff Kuyken wrote: Thank you for all your posts to the list Ron. They really are one of the things that make it great! If it wasn't for today's post I would never have seen such a unique view of Mars such as this: http://hirise.lpl.arizona.edu/ESP_023464_0945 Cheers, Jeff Kuyken Meteorites Australia www.meteorites.com.au Vice President - I.M.C.A. Inc. www.imca.cc -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Ron Baalke Sent: Thursday, 8 September 2011 9:34 AM To: Meteorite Mailing List Subject: [meteorite-list] MRO HiRISE Images - September 7, 2011 MARS RECONNAISSANCE ORBITER HIRISE IMAGES September 7, 2011 o Gullies and Lobate Material in a Crater in Nereidum Montes http://hirise.lpl.arizona.edu/ESP_023173_1405 This crater has gullies on its southwest-facing walls and rim, as well as and what appears to be two separate instances of ear-shaped material associated to its interior gullies. o Iazu Crater http://hirise.lpl.arizona.edu/ESP_023237_1775 These crater walls, which are well exposed,may provide a regional context for the Opportunity rover's studies of Endeavour Crater. o Carbon Dioxide Ice in the Late Summer http://hirise.lpl.arizona.edu/ESP_023464_0945 For most of the year these walls are covered with bright frost, but they defrost and show their true colors at the end of the summer. o Fan and Dust Devil in Deuteronilus Mensa http://hirise.lpl.arizona.edu/ESP_023671_2270 The dust devil is an example of the ongoing processes that continue to shape the surface of Mars. All of the HiRISE images are archived here: http://hirise.lpl.arizona.edu/ Information about the Mars Reconnaissance Orbiter is online at http://www.nasa.gov/mro. The mission is managed by NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology, for the NASA Science Mission Directorate, Washington, D.C. Lockheed Martin Space Systems, of Denver, is the prime contractor and built the spacecraft. HiRISE is operated by the University of Arizona. Ball Aerospace and Technologies Corp., of Boulder, Colo., built the HiRISE instrument. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] NWA 6928 A Rare Noritic Diogenite meteorite
Aloha Bernd, Well actually, my NWA 6927 is a very fresh orthopyroxenitic diogenite (Fs24.9-25.1Wo3.2-3.6; FeO/MnO = 30-33), with accessory olivine (Fa31.0; FeO/MnO = 43), troilite and chromite. One of the best of this 'flavor' of diogenites since my NWA 6421. http://bigkahuna-meteorites.com/NWA6927.html NWA 6928 noritic diogenite was indeed initially thought to be a eucrite by myself and Dr Tony Irving, who described it as a 'spectacularly fresh and very unusual basaltic eucrite'. The pyroxene is entirely orthopyroxene, and it is way more magnesian that anything else seen in eucrites. Further tests concluded that in no way can NWA 6928 be a eucrite, because the pyroxene is not pigeonite, but instead orthopyroxene (with a composition in the range for diogenites). It is composed of 80 vol.% orthopyroxene (Fs33.4-34.1Wo2.5-1.2; FeO/MnO = 31-33) and 19 vol.% interstitial, anorthitic plagioclase, with accessory Ti-Al-bearing chromite, troilite and merrillite with a relatively coarse grained, cumulate texture. Truly an enigma, I've never seen a diogenite that looks quite like NWA 6928, and there are still a few slices left of this very rare (one of only three known noritic diogenites) meteorite. http://bigkahuna-meteorites.com/NWA6928.html I agree with you about ET's NWA 6693 thin sections - spectacular, and something I hope to have available soon on my own NWA 6926 ungrouped achondrite pairing to Greg Hupe's NWA 6704. gary On Sep 7, 2011, at 1:14 PM, Bernd V. Pauli wrote: Gary, I beg to differ ;-) NWA 2928 is that gorgeous plagioclase-rich eucrite, 9.78 grams of which will soon embellish my collection. The rare noritic diogenite meteorite, that's NWA 6927 and because this is such an extraordinary diogenite, I just couldn't help adding that beautiful 5.36 gr slice to my collection as well. Even though my wallet now looks like an empty hole, sometimes there are meteorites and thin sections that you just cannot miss out on! ... and that's why E.T.'s offer of NWA 6693 thin sections, perfectly prepared by the one and only slide maker in this world and at such an attractive price (considering the surface to price ratio) is another inevitable addition to my collection and a perfect one as well, as there is aready a 6.01 gr slice of the paired NWA 6704 from Greg Hupé in my collection! Can hardly wait to welcome these exotic beauties in my collection! Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list Gary Fujihara Big Kahuna Meteorites (IMCA#1693) 105 Puhili Place, Hilo, Hawai'i 96720 http://bigkahuna-meteorites.com/ http://shop.ebay.com/fujmon/m.html (808) 640-9161 __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] NASA GRAIL Moon Mission Launch Rescheduled to September 9
http://www.jpl.nasa.gov/news/news.cfm?release=2011-280 NASA GRAIL Moon Mission Launch Rescheduled Jet Propulsion Laboratory September 08, 2011 CAPE CANAVERAL, Fla. - The launch of a Delta II vehicle carrying NASA's Gravity Recovery and Interior Laboratory (GRAIL) was scrubbed today, Thursday, Sept. 8, due to weather. Conditions associated with upper level winds were in violation of the launch criteria. The Delta II and GRAIL are safe and secure at this time. The launch is rescheduled for Friday, Sept. 9, from Space Launch Complex-17B at Cape Canaveral Air Force Station, Fla. There are two instantaneous launch opportunities at 5:33:25 a.m. PDT (8:33:25 a.m. EDT) and 6:12:31 a.m. PDT (9:12:31 a.m. EDT). The forecast for tomorrow (Sept. 9) shows a 40 percent chance of favorable weather conditions for the launch. NASA's Jet Propulsion Laboratory, Pasadena, Calif., manages the GRAIL mission. The Massachusetts Institute of Technology, Cambridge, is home to the mission's principal investigator, Maria Zuber. The GRAIL mission is part of the Discovery Program managed at NASA's Marshall Space Flight Center in Huntsville, Ala. Lockheed Martin Space Systems, Denver, built the spacecraft. Launch management for the mission is the responsibility of NASA's Launch Services Program at the Kennedy Space Center in Florida. JPL is a division of the California Institute of Technology in Pasadena. More information about GRAIL is online at: http://www.nasa.gov/grail and http://grail.nasa.gov . DC Agle 818-393-9011 Jet Propulsion Laboratory, Pasadena, Calif. a...@jpl.nasa.gov Dwayne Brown 202-358-1726 NASA Headquarters, Washington dwayne.c.br...@nasa.gov George Diller 321-867-2468 Kennedy Space Center, Fla. george.h.dil...@nasa.gov 2011-280 __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Mars Orbiter Resumes Use of Camera (MRO)
http://www.jpl.nasa.gov/news/news.cfm?release=2011-282 Orbiter Resumes Use of Camera Jet Propulsion Laboratory September 08, 2011 Mars Reconnaissance Orbiter Mission Status Report PASADENA, Calif. -- Operators of NASA's Mars Reconnaissance Orbiter are resuming use of the mission's highest resolution camera following a second precautionary shutdown in two weeks. The High Resolution Imaging Science Experiment (HiRISE) instrument powered off on Aug. 27 and again on Sept. 6. In each case, commanding for an observation was not properly received by the memory module controlling one of the instrument's 14 electronic detectors (CCDs, or charge-coupled devices). Between those two incidents, the camera successfully resumed observations for five days using its other 13 detectors. The second entry into the power-off, thermally protected mode occurred during an attempt to add use of the 14th detector. The camera is resuming observations with 13 detectors today while plans are developed for other diagnostic tests. The detector remaining out of use pending further tests lies at the outer edge of the lineup of detectors. It is one of 10 detectors observing through red filters. The other four are pairs observing through blue-green or near-infrared filters, yielding color images in the central portion of the observation. Without this 14th detector, observations can still cover as much area, in images slightly narrower, but longer, than usual. The typical cross-track width of a HiRISE image without use of that detector is about 3.4 miles (5.4 kilometers), compared to about 3.7 miles (6 kilometers) when using all detectors. The coverage area can be maintained by extending the length of the observed area by about 10 percent. HiRISE has returned more than 20,400 observations since the Mars Reconnaissance Orbiter reached Mars in 2006. Each observation by this telescopic camera covers several square miles, or square kilometers, and can reveal features as small as a desk. The Mars Reconnaissance Orbiter completed its primary science phase in 2008 and continues to work in an extended mission. HiRISE Principal Investigator Alfred McEwen, of the University of Arizona Lunar and Planetary Laboratory, Tucson, said, This isn't a significant loss to the science capability of HiRISE. However, it is a sign that the instrument is aging and could suffer further degradation in the future. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems, Denver, built the orbiter and partners in its daily operation. The University of Arizona, Tucson, operates the HiRISE instrument, which was built by Ball Aerospace Technologies Corp., Boulder, Colo. More information about the Mars Reconnaissance Orbiter is available online at http://mars.jpl.nasa.gov/mro/ . Information about HiRISE and thousands of images from that instrument are available at http://hirise.lpl.arizona.edu/ . Guy Webster 818-354-6278 Jet Propulsion Laboratory, Pasadena, Calif. guy.webs...@jpl.nasa.gov 2011-282 __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] MESSENGER Team Delivers First Orbital Data to Planetary Data System
http://messenger.jhuapl.edu/news_room/details.php?id=1822 MESSENGER Mission News September 8, 2011 MESSENGER Team Delivers First Orbital Data to Planetary Data System Data collected during MESSENGER's first two months in orbit around Mercury have been released to the public by the Planetary Data System (PDS), an organization that archives and distributes all of NASA's planetary mission data. Calibrated data from all seven of MESSENGER's science instruments, plus radio science data from the spacecraft telecommunications system, are included in this release. It's a real milestone for the first data ever obtained from orbit around Mercury to be available now in the PDS, says Nancy Chabot, Instrument Scientist for MESSENGER's Mercury Dual Imaging System (MDIS). Scientists around the world will use these data to better understand Mercury and the formation and evolution of our solar system as a whole, says Chabot, of the Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Md. However, to me, one of the most exciting aspects of this release is that these data now in the PDS are just the first of much more to come. MESSENGER continues to send us new data practically every day! The science results from these instruments have already shed light on questions about Mercury that have lingered for more than three decades. Many of these results were highlighted in a June 16 press conference http://messenger.jhuapl.edu/news_room/presscon9.html at NASA headquarters. For instance, says MESSENGER Project Scientist Ralph McNutt of APL, 'The imaging has highlighted the importance of volcanism in plains formation in the planet's history, and the geochemical remote sensing instruments are providing new insights into formation scenarios for the planet. Geophysics data are yielding new information on Mercury's internal structure, and data from the exosphere and magnetosphere instruments are giving us the first continuous view of Mercury's interaction with its local space environment. The availability of these data via PDS will allow scientists around the world to study the data and begin making even more connections and discoveries, McNutt adds. Since the mid-1990s, NASA has required all of its planetary missions to archive data in the PDS, an active archive that makes available well-documented, peer-reviewed data to the research community. The PDS includes eight university/research center science teams, called discipline nodes, each of which specializes in a specific area of planetary data. The contributions from these nodes provide a data-rich source for scientists, researchers, and developers. PDS deliveries are the result of a concerted effort between the MESSENGER team and the PDS that starts well before the release to the public, says APL's Susan Ensor, MESSENGER's Science Operations Center lead. Approximately 50 MESSENGER team members were actively involved in making this PDS delivery, including instrument team members, developers from Applied Coherent Technology Corporation, and Science Operations Center personnel. Previous MESSENGER PDS deliveries included data from cruise and flybys of the Earth, Venus, and Mercury. The data for this delivery are archived and available online at http://pds.nasa.gov/subscription_service/SS-20110908.html, and all of the MESSENGER data archived at the PDS thus far are available at http://pds.nasa.gov. As of this release, MESSENGER will have delivered 1.1 terabytes of raw and calibrated data to the PDS, including more than 30,000 images (of which over 18,000 are from orbit). The team will submit three more PDS deliveries at six-month intervals from MESSENGER's primary mission. Improved calibrations will be incorporated in these future deliveries, Ensor says. Advanced products, including Mercury maps, will be included in the final primary mission delivery in March 2013. The MESSENGER team has created an innovative software tool with which the public can view data from this delivery. ACT-REACT-Quick Map provides a simple, interactive Web interface to MESSENGER data. Developed by Applied Coherent Technology Corporation, Quick Map allows users to examine global mosaics constructed with high-resolution images from this PDS delivery. The tool also provides weekly updates of coverage for surface-observing instruments, as well as the status of specially targeted MDIS observations. Information is also available that can be used to locate MESSENGER data products at the PDS. QuickMap can be accessed via links on each of the MESSENGER websites at http://messenger.jhuapl.edu/ and http://www.nasa.gov/messenger. The MESSENGER team is delighted to share the orbital observations of Mercury with the planetary science community and the public, adds MESSENGER Principal Investigator Sean Solomon, of the Carnegie Institution of Washington. 'The first global exploration of our solar system's innermost planet is a wonderful adventure, and there are plenty of front-row seats for all
Re: [meteorite-list] Geophysics, meteorites, and Electron microscopy-QUESTION
Thanks for the free tutorial, Dr. Agee! That was really enlightening. :) Doug Ross __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorite, satellite or...? 9/1/11, around 9.30 pm, Mykolaiv district, Odessa - Ukraine
Dear list members, today I found this. Does anyone know more about this or could translate from Russian what is said in the videos? Do we have list members from the Ukraine? http://www.pn.mk.ua/news/45222.html Translation: http://translate.google.de/translate?hl=ensl=ruu=http://www.pn.mk.ua/news/45222.htmlei=xAZpTs7vD8TUsgajgv2aAgsa=Xoi=translatect=resultresnum=1ved=0CC8Q7gEwAAprev=/search%3Fq%3D%25D0%259D%25D0%25B8%25D0%25BA%25D0%25BE%25D0%25BB%25D0%25B0%25D0%25B5%25D0%25B2%2B%25D0%25BC%25D0%25B5%25D1%2582%25D0%25B5%25D0%25BE%25D1%2580%25D0%25B8%25D1%2582%26hl%3Dde%26sa%3DX%26tbo%3D1%26biw%3D1280%26bih%3D804%26tbs%3Dqdr:h%26prmd%3Divns http://www.ukrinform.ua/eng/order/?id=230942 map: http://upload.wikimedia.org/wikipedia/commons/6/6d/Mykolajiw-Ukraine-Map.png http://www.mukola.net/news.php?id=37772 Translation: http://translate.google.de/translate?sl=rutl=enjs=nprev=_thl=deie=UTF-8layout=2eotf=1u=http%3A%2F%2Fwww.mukola.net%2Fnews.php%3Fid%3D37772 Best wishes to all Martin __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] sky and telescope article about the kenya fall and recovery-FARMER HUPE.
Mike: Thanks for posting this article,and congratulations to both you and greg on your generous adventure.I know the locals could use the money and it was great of you guys to handle the procurement with integrity.good job,i think. Good luck on your future adventures.As always, you remain an asset to the meteorite collecting and studying community.THANKS! Best regards;Herman Archer imca 2770 __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
