The Planetary Report September Equinox 2012 Volume 32, Number 3
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Inside This Week
Thu'rsday A Student Publication November I, too? Volume 52 Issue 8 UNIVERSITY 0 F WISCONSIN-STEVENS PO INT Locked and loaded: UW-SP PrQ.tective Services to introduce armed police officers t·o campus Sara Suchy police on campus 24 hours a an increasing number of peo "Our number one concern consult SCA before making THE POINTER day, seven days a week. ple who are hostile towards has always been the safety the decision to arm police offi [email protected] .EDU "Currently we are the only them. Most of these people of our students; we take that cers. campus in the UW-System to are not students, but it is not very, very seriously." "Some students are con not already have armed police fair to our officers to put them Student Government cerned that having guns on Students at the University officers," said Bob Tomlinson, campus will provoke violence. of Wisconsin-Stevens Point Vice Chancellor of Student Some students actually feel might be seeing more armed Affairs. unsafe having guns around police officers patrolling cam Chancellor Linda Bunnell campus," said Goldowski. pus in the near future after a is also expected to mandate Tomlinson views the ini committee organized by the that the UW-SP campus have tiative as a means of prevent Board of Regents to evalu armed police officers before ing a tragedy like Virginia Tech ate security of uw campus the entire UW-System requires from happening at UW-SP. es presents their report next it. "If something like Virginia week. Currently, there are three Tech happened here, the first "Immediately following full-fledged police officers on thing people would say is we the Virginia Tech shooting last campus and that number is need to have armed police on spring, President Kevin Reilly expected to climb to seven in campus to keep the students [president of the University the near future. -
The Rock Abrasion Record at Gale Crater: Mars Science Laboratory
PUBLICATIONS Journal of Geophysical Research: Planets RESEARCH ARTICLE The rock abrasion record at Gale Crater: Mars 10.1002/2013JE004579 Science Laboratory results from Bradbury Special Section: Landing to Rocknest Results from the first 360 Sols of the Mars Science Laboratory N. T. Bridges1, F. J. Calef2, B. Hallet3, K. E. Herkenhoff4, N. L. Lanza5, S. Le Mouélic6, C. E. Newman7, Mission: Bradbury Landing D. L. Blaney2,M.A.dePablo8,G.A.Kocurek9, Y. Langevin10,K.W.Lewis11, N. Mangold6, through Yellowknife Bay S. Maurice12, P.-Y. Meslin12,P.Pinet12,N.O.Renno13,M.S.Rice14, M. E. Richardson7,V.Sautter15, R. S. Sletten3,R.C.Wiens6, and R. A. Yingst16 Key Points: • Ventifacts in Gale Crater 1Applied Physics Laboratory, Laurel, Maryland, USA, 2Jet Propulsion Laboratory, Pasadena, California, USA, 3Department • Maybeformedbypaleowind of Earth and Space Sciences, College of the Environments, University of Washington, Seattle, Washington, USA, 4U.S. • Can see abrasion textures at range 5 6 of scales Geological Survey, Flagstaff, Arizona, USA, Los Alamos National Laboratory, Los Alamos, New Mexico, USA, LPGNantes, UMR 6112, CNRS/Université de Nantes, Nantes, France, 7Ashima Research, Pasadena, California, USA, 8Universidad de Alcala, Madrid, Spain, 9Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Supporting Information: Austin, Texas, USA, 10Institute d’Astrophysique Spatiale, Université Paris-Sud, Orsay, France, 11Department of • Figure S1 12 fi • Figure S2 Geosciences, Princeton University, Princeton, New Jersey, USA, Centre National de la Recherche Scienti que, Institut 13 • Table S1 de Recherche en Astrophysique et Planétologie, CNRS-Université Toulouse, Toulouse, France, Department of Atmospheric, Oceanic, and Space Science; College of Engineering, University of Michigan, Ann Arbor, Michigan, USA, Correspondence to: 14Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California, USA, 15Lab N. -
THE MARS 2020 ROVER ENGINEERING CAMERAS. J. N. Maki1, C
51st Lunar and Planetary Science Conference (2020) 2663.pdf THE MARS 2020 ROVER ENGINEERING CAMERAS. J. N. Maki1, C. M. McKinney1, R. G. Willson1, R. G. Sellar1, D. S. Copley-Woods1, M. Valvo1, T. Goodsall1, J. McGuire1, K. Singh1, T. E. Litwin1, R. G. Deen1, A. Cul- ver1, N. Ruoff1, D. Petrizzo1, 1Jet Propulsion Laboratory, California Institute of Technology (4800 Oak Grove Drive, Pasadena, CA 91109, [email protected]). Introduction: The Mars 2020 Rover is equipped pairs (the Cachecam, a monoscopic camera, is an ex- with a neXt-generation engineering camera imaging ception). The Mars 2020 engineering cameras are system that represents a significant upgrade over the packaged into a single, compact camera head (see fig- previous Navcam/Hazcam cameras flown on MER and ure 1). MSL [1,2]. The Mars 2020 engineering cameras ac- quire color images with wider fields of view and high- er angular/spatial resolution than previous rover engi- neering cameras. Additionally, the Mars 2020 rover will carry a new camera type dedicated to sample op- erations: the Cachecam. History: The previous generation of Navcams and Hazcams, known collectively as the engineering cam- eras, were designed in the early 2000s as part of the Mars Exploration Rover (MER) program. A total of Figure 1. Flight Navcam (left), Flight Hazcam (middle), 36 individual MER-style cameras have flown to Mars and flight Cachecam (right). The Cachecam optical assem- on five separate NASA spacecraft (3 rovers and 2 bly includes an illuminator and fold mirror. landers) [1-6]. The MER/MSL cameras were built in two separate production runs: the original MER run Each of the Mars 2020 engineering cameras utilize a (2003) and a second, build-to-print run for the Mars 20 megapixel OnSemi (CMOSIS) CMOS sensor Science Laboratory (MSL) mission in 2008. -
Educator's Guide
EDUCATOR’S GUIDE ABOUT THE FILM Dear Educator, “ROVING MARS”is an exciting adventure that This movie details the development of Spirit and follows the journey of NASA’s Mars Exploration Opportunity from their assembly through their Rovers through the eyes of scientists and engineers fantastic discoveries, discoveries that have set the at the Jet Propulsion Laboratory and Steve Squyres, pace for a whole new era of Mars exploration: from the lead science investigator from Cornell University. the search for habitats to the search for past or present Their collective dream of Mars exploration came life… and maybe even to human exploration one day. true when two rovers landed on Mars and began Having lasted many times longer than their original their scientific quest to understand whether Mars plan of 90 Martian days (sols), Spirit and Opportunity ever could have been a habitat for life. have confirmed that water persisted on Mars, and Since the 1960s, when humans began sending the that a Martian habitat for life is a possibility. While first tentative interplanetary probes out into the solar they continue their studies, what lies ahead are system, two-thirds of all missions to Mars have NASA missions that not only “follow the water” on failed. The technical challenges are tremendous: Mars, but also “follow the carbon,” a building block building robots that can withstand the tremendous of life. In the next decade, precision landers and shaking of launch; six months in the deep cold of rovers may even search for evidence of life itself, space; a hurtling descent through the atmosphere either signs of past microbial life in the rock record (going from 10,000 miles per hour to 0 in only six or signs of past or present life where reserves of minutes!); bouncing as high as a three-story building water ice lie beneath the Martian surface today. -
Operation and Performance of the Mars Exploration Rover Imaging System on the Martian Surface
Operation and Performance of the Mars Exploration Rover Imaging System on the Martian Surface Justin N. Maki Jet Propulsion Laboratory California Institute of Technology Pasadena, CA USA [email protected] Todd Litwin, Mark Schwochert Jet Propulsion Laboratory California Institute of Technology Pasadena, CA USA Ken Herkenhoff United States Geological Survey Flagstaff, AZ USA Abstract - The Imaging System on the Mars Exploration Rovers has successfully operated on the surface of Mars for over one Earth year. The acquisition of hundreds of panoramas and tens of thousands of stereo pairs has enabled the rovers to explore Mars at a level of detail unprecedented in the history of space exploration. In addition to providing scientific value, the images also play a key role in the daily tactical operation of the rovers. The mobile nature of the MER surface mission requires extensive use of the imaging system for traverse planning, rover localization, remote sensing instrument targeting, and robotic arm placement. Each of these activity types requires a different set of data compression rates, surface Figure 1. The Mars Exploration Spirit Rover, as viewed by coverage, and image acquisition strategies. An overview the Navcam shortly after lander egress early in the mission. of the surface imaging activities is provided, along with a presents an overview of the operation and performance of summary of the image data acquired to date. the MER Imaging System. Keywords: Imaging system, cameras, rovers, Mars, 1.2 Imaging System Design operations. The MER cameras are classified into five types: Descent cameras, Navigation cameras (Navcam), Hazard Avoidance 1 Introduction cameras (Hazcam), Panoramic cameras (Pancam), and Microscopic Imager (MI) cameras. -
Bridge Academy Offers Incoming Freshmen a Taste of Life in High School
Rangers advance on in tournament Story on Page B1 THURSDAY,Newfound AUGUST 6, 2015 FREE IN PRINT, FREE ON-LINE • WWW.NEWFOUNDLANDING.COM Landing COMPLIMENTARY Bridge Academy offers incoming freshmen a taste of life in high school BY DONNA RHODES [email protected] Besides a campus tour BRISTOL — Each and introduction to the summer, incoming logistics of how to move freshmen at Newfound around the building on Regional High School the bell schedule, there are invited to attend were field trips, too. Bridge Academy, a four- Last Wednesday, the day session designed to group went to Welling- help them become ac- ton State Park, where climated to life in high they spent time learning school and beyond. to work together and ac- This year, nearly 50 complish their goals. members of the Class Science teacher Pe- of 2019 took part in the ter Dumont led them in academy where they not an introduction to GPS only got to learn the ins systems then sent them and outs of a new school, out on the park’s Nature they got to make new Trail for geo-caching friends and have a lot of and journaling. fun along the way. “They’ll work in pairs Bonding and team to find ten locations building are a big part where they’ll collect a of the Bridge Academy, sticker, maybe get a re- said Amy Yeakel, who is ward like some candy, the Extended Learning then receive a prompt on Coordinator at NRHS something for them to and organizes the acade- write about in their jour- DONNA RHODES my program. -
Of Curiosity in Gale Crater, and Other Landed Mars Missions
44th Lunar and Planetary Science Conference (2013) 2534.pdf LOCALIZATION AND ‘CONTEXTUALIZATION’ OF CURIOSITY IN GALE CRATER, AND OTHER LANDED MARS MISSIONS. T. J. Parker1, M. C. Malin2, F. J. Calef1, R. G. Deen1, H. E. Gengl1, M. P. Golombek1, J. R. Hall1, O. Pariser1, M. Powell1, R. S. Sletten3, and the MSL Science Team. 1Jet Propulsion Labora- tory, California Inst of Technology ([email protected]), 2Malin Space Science Systems, San Diego, CA ([email protected] ), 3University of Washington, Seattle. Introduction: Localization is a process by which tactical updates are made to a mobile lander’s position on a planetary surface, and is used to aid in traverse and science investigation planning and very high- resolution map compilation. “Contextualization” is hereby defined as placement of localization infor- mation into a local, regional, and global context, by accurately localizing a landed vehicle, then placing the data acquired by that lander into context with orbiter data so that its geologic context can be better charac- terized and understood. Curiosity Landing Site Localization: The Curi- osity landing was the first Mars mission to benefit from the selection of a science-driven descent camera (both MER rovers employed engineering descent im- agers). Initial data downlinked after the landing fo- Fig 1: Portion of mosaic of MARDI EDL images. cused on rover health and Entry-Descent-Landing MARDI imaged the landing site and science target (EDL) performance. Front and rear Hazcam images regions in color. were also downloaded, along with a number of When is localization done? MARDI thumbnail images. The Hazcam images were After each drive for which Navcam stereo da- used primarily to determine the rover’s orientation by ta has been acquired post-drive and terrain meshes triangulation to the horizon. -
The Mars Science Laboratory Engineering Cameras
Space Sci Rev DOI 10.1007/s11214-012-9882-4 The Mars Science Laboratory Engineering Cameras J. Maki · D. Thiessen · A. Pourangi · P. Kobzeff · T. Litwin · L. Scherr · S. Elliott · A. Dingizian · M. Maimone Received: 21 December 2011 / Accepted: 5 April 2012 © Springer Science+Business Media B.V. 2012 Abstract NASA’s Mars Science Laboratory (MSL) Rover is equipped with a set of 12 en- gineering cameras. These cameras are build-to-print copies of the Mars Exploration Rover cameras described in Maki et al. (J. Geophys. Res. 108(E12): 8071, 2003). Images returned from the engineering cameras will be used to navigate the rover on the Martian surface, de- ploy the rover robotic arm, and ingest samples into the rover sample processing system. The Navigation cameras (Navcams) are mounted to a pan/tilt mast and have a 45-degree square field of view (FOV) with a pixel scale of 0.82 mrad/pixel. The Hazard Avoidance Cameras (Hazcams) are body-mounted to the rover chassis in the front and rear of the vehicle and have a 124-degree square FOV with a pixel scale of 2.1 mrad/pixel. All of the cameras uti- lize a 1024 × 1024 pixel detector and red/near IR bandpass filters centered at 650 nm. The MSL engineering cameras are grouped into two sets of six: one set of cameras is connected to rover computer “A” and the other set is connected to rover computer “B”. The Navcams and Front Hazcams each provide similar views from either computer. The Rear Hazcams provide different views from the two computers due to the different mounting locations of the “A” and “B” Rear Hazcams. -
Precambrian Crust Beneath the Mesozoic Northern Canadian Cordillera Discovered by Lithoprobe Seismic Reflection Profiling
TECTONICS, VOL. 23, TC2010, doi:10.1029/2002TC001412, 2004 Precambrian crust beneath the Mesozoic northern Canadian Cordillera discovered by Lithoprobe seismic reflection profiling Frederick A. Cook,1 Ronald M. Clowes,2 David B. Snyder,3 Arie J. van der Velden,1 Kevin W. Hall,1 Philippe Erdmer,4 and Carol A. Evenchick5 Received 13 May 2002; revised 9 April 2003; accepted 1 August 2003; published 30 March 2004. [1] The Cordillera in northern Canada is underlain deep layering on both profiles (300 km apart). The by westward tapering layers that can be followed base of the layered reflection zone coincides with from outcrops of Proterozoic strata in the Foreland the Moho, which exhibits variable character and belt to the lowermost crust of the orogenic interior, undulates in a series of broad arches with widths of a distance of as much as 500 km across strike. They 150 km. In general, the mantle appears to have are interpreted as stratified Proterozoic rocks, few reflections. However, at the southwest end of including 1.8–0.7 Ga supracrustal rocks and their Line 3 near the Alaska-British Columbia border, a basement. The layering was discovered on two new reflection dips eastward from 14.0 s to 21.0 s deep seismic reflection profiles in the Yukon (Line 3; (45 to 73 km depth) beneath exposed Eocene 650 km) and northern British Columbia (Line 2; magmatic rocks. It is interpreted as a relict 1245 km in two segments) that were acquired as subduction surface of the Kula plate. Our part of the Lithoprobe Slave-Northern Cordillera interpretation of Proterozoic layered rocks beneath Lithospheric Evolution (SNORCLE) transect. -
Art on Mars: a Foundation for Exoart
THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY UNIVERSITY OF CANBERRA AUSTRALIA by TREVOR JOHN RODWELL Bachelor of Design (Hons), University of South Australia Graduate Diploma (Business Enterprise), The University of Adelaide ART ON MARS: A FOUNDATION FOR EXOART May 2011 ABSTRACT ART ON MARS: A FOUNDATION FOR EXOART It could be claimed that human space exploration started when the former Soviet Union (USSR) launched cosmonaut Yuri Gagarin into Earth orbit on 12 April 1961. Since that time there have been numerous human space missions taking American astronauts to the Moon and international crews to orbiting space stations. Several space agencies are now working towards the next major space objective which is to send astronauts to Mars. This will undoubtedly be the most complex and far-reaching human space mission ever undertaken. Because of its large scale and potentially high cost it is inevitable that such a mission will be an international collaborative venture with a profile that will be world- wide. Although science, technology and engineering have made considerable contributions to human space missions and will be very much involved with a human Mars mission, there has been scant regard for artistic and cultural involvement in these missions. Space agencies have, however, realised the influence of public perception on space funding outcomes and for some time have strived to engage the public in these space missions. This has provided an opportunity for an art and cultural involvement, but there is a problem for art engaging with space missions as currently there is no artform specific to understanding and tackling the issues of art beyond our planet. -
Alumni Magazine C2-C4camjf07 12/21/06 2:50 PM Page C2 001-001Camjf07toc 12/21/06 1:39 PM Page 1
c1-c1CAMJF07 12/22/06 1:58 PM Page c1 January/February 2007 $6.00 alumni magazine c2-c4CAMJF07 12/21/06 2:50 PM Page c2 001-001CAMJF07toc 12/21/06 1:39 PM Page 1 Contents JANUARY / FEBRUARY 2007 VOLUME 109 NUMBER 4 alumni magazine Features 52 2 From David Skorton Residence life 4 Correspondence Under the hood 8 From the Hill Remembering “Superman.” Plus: Peres lectures, seven figures for Lehman, a time capsule discovered, and a piece of Poe’s coffin. 12 Sports Small players, big win 16 Authors 40 Pynchon goes Against the Day 40 Going the Distance 35 Camps DAVID DUDLEY For three years, Cornell astronomers have been overseeing Spirit 38 Wines of the Finger Lakes and Opportunity,the plucky pair of Mars rovers that have far out- 2005 Atwater Estate Vineyards lived their expected lifespans.As the mission goes on (and on), Vidal Blanc Associate Professor Jim Bell has published Postcards from Mars,a striking collection of snapshots from the Red Planet. 58 Classifieds & Cornellians in Business 112 46 Happy Birthday, Ezra 61 Alma Matters BETH SAULNIER As the University celebrates the 200th birthday of its founder on 64 Class Notes January 11, we ask: who was Ezra Cornell? A look at the humble Quaker farm boy who suffered countless financial reversals before 104 Alumni Deaths he made his fortune in the telegraph industry—and promptly gave it away. 112 Cornelliana What’s your Ezra I.Q.? 52 Ultra Man BRAD HERZOG ’90 18 Currents Every morning at 3:30, Mike Trevino ’95 ANATOMY OF A CAMPAIGN | Aiming for $4 billion cycles a fifty-mile loop—just for practice. -
Simulations of Mars Rover Traverses
Simulations of Mars Rover Traverses •••••••••••••••••••••••••••••••••••• Feng Zhou, Raymond E. Arvidson, and Keith Bennett Department of Earth and Planetary Sciences, Washington University in St Louis, St Louis, Missouri 63130 e-mail: [email protected], [email protected], [email protected] Brian Trease, Randel Lindemann, and Paolo Bellutta California Institute of Technology/Jet Propulsion Laboratory, Pasadena, California 91011 e-mail: [email protected], [email protected], [email protected] Karl Iagnemma and Carmine Senatore Robotic Mobility GroupMassachusetts Institute of Technology, Cambridge, Massachusetts 02139 e-mail: [email protected], [email protected] Received 7 December 2012; accepted 21 August 2013 Artemis (Adams-based Rover Terramechanics and Mobility Interaction Simulator) is a software tool developed to simulate rigid-wheel planetary rover traverses across natural terrain surfaces. It is based on mechanically realistic rover models and the use of classical terramechanics expressions to model spatially variable wheel-soil and wheel-bedrock properties. Artemis’s capabilities and limitations for the Mars Exploration Rovers (Spirit and Opportunity) were explored using single-wheel laboratory-based tests, rover field tests at the Jet Propulsion Laboratory Mars Yard, and tests on bedrock and dune sand surfaces in the Mojave Desert. Artemis was then used to provide physical insight into the high soil sinkage and slippage encountered by Opportunity while crossing an aeolian ripple on the Meridiani plains and high motor currents encountered while driving on a tilted bedrock surface at Cape York on the rim of Endeavour Crater. Artemis will continue to evolve and is intended to be used on a continuing basis as a tool to help evaluate mobility issues over candidate Opportunity and the Mars Science Laboratory Curiosity rover drive paths, in addition to retrieval of terrain properties by the iterative registration of model and actual drive results.