Annual Report 2014-2015
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New Voyage to Rendezvous with a Small Asteroid Rotating with a Short Period
Hayabusa2 Extended Mission: New Voyage to Rendezvous with a Small Asteroid Rotating with a Short Period M. Hirabayashi1, Y. Mimasu2, N. Sakatani3, S. Watanabe4, Y. Tsuda2, T. Saiki2, S. Kikuchi2, T. Kouyama5, M. Yoshikawa2, S. Tanaka2, S. Nakazawa2, Y. Takei2, F. Terui2, H. Takeuchi2, A. Fujii2, T. Iwata2, K. Tsumura6, S. Matsuura7, Y. Shimaki2, S. Urakawa8, Y. Ishibashi9, S. Hasegawa2, M. Ishiguro10, D. Kuroda11, S. Okumura8, S. Sugita12, T. Okada2, S. Kameda3, S. Kamata13, A. Higuchi14, H. Senshu15, H. Noda16, K. Matsumoto16, R. Suetsugu17, T. Hirai15, K. Kitazato18, D. Farnocchia19, S.P. Naidu19, D.J. Tholen20, C.W. Hergenrother21, R.J. Whiteley22, N. A. Moskovitz23, P.A. Abell24, and the Hayabusa2 extended mission study group. 1Auburn University, Auburn, AL, USA ([email protected]) 2Japan Aerospace Exploration Agency, Kanagawa, Japan 3Rikkyo University, Tokyo, Japan 4Nagoya University, Aichi, Japan 5National Institute of Advanced Industrial Science and Technology, Tokyo, Japan 6Tokyo City University, Tokyo, Japan 7Kwansei Gakuin University, Hyogo, Japan 8Japan Spaceguard Association, Okayama, Japan 9Hosei University, Tokyo, Japan 10Seoul National University, Seoul, South Korea 11Kyoto University, Kyoto, Japan 12University of Tokyo, Tokyo, Japan 13Hokkaido University, Hokkaido, Japan 14University of Occupational and Environmental Health, Fukuoka, Japan 15Chiba Institute of Technology, Chiba, Japan 16National Astronomical Observatory of Japan, Iwate, Japan 17National Institute of Technology, Oshima College, Yamaguchi, Japan 18University of Aizu, Fukushima, Japan 19Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA 20University of Hawai’i, Manoa, HI, USA 21University of Arizona, Tucson, AZ, USA 22Asgard Research, Denver, CO, USA 23Lowell Observatory, Flagstaff, AZ, USA 24NASA Johnson Space Center, Houston, TX, USA 1 Highlights 1. -
Table of Contents (PDF)
June 28, 2016 u vol. 113 u no. 26 From the Cover 7106 Topological defects in liquid crystals E3619 Translation control in Fragile X syndrome E3686 Voltage-sensing phosphatase activities E3782 Aerobic glycolysis and learning 7261 Electric field sensing by bumblebees Contents THIS WEEK IN PNAS Cover image: Pictured is a polarized 7003 In This Issue optical micrograph of a plastic sheet with an array of holes drilled into it and suspended in a nematic-phase liquid LETTERS (ONLINE ONLY) crystal. Lisa Tran et al. found that such a sheet induced arrays of topological E3590 Reduced nitrogen dominated nitrogen deposition in the United States, but its defect lines in a nematic liquid crystal. contribution to nitrogen deposition in China decreased The authors further demonstrated how Xuejun Liu, Wen Xu, Enzai Du, Yuepeng Pan, and Keith Goulding the energy of the liquid crystal and the E3592 Reply to Liu et al.: On the importance of US deposition of nitrogen dioxide, geometry of the holes affect the defect coarse particle nitrate, and organic nitrogen patterns. The findings might have Yi Li, Bret A. Schichtel, John T. Walker, Donna B. Schwede, Xi Chen, Christopher M. B. applications in electronic displays, Lehmann, Melissa A. Puchalski, David A. Gay, and Jeffrey L. Collett Jr. where nematic liquid crystals are widely used. See the article by Tran et al. on E3594 Rise and fall of nitrogen deposition in the United States pages 7106–7111. Image courtesy of Enzai Du Lisa Tran. E3596 Adult pelvic shape change is an evolutionary side effect Philipp Mitteroecker and Barbara Fischer E3597 Reply to Mitteroecker and Fischer: Developmental solutions to the obstetrical dilemma are not Gouldian spandrels Marcia S. -
Document Downloaded From: This Paper Must Be Cited As: the Final
Document downloaded from: http://hdl.handle.net/10251/122856 This paper must be cited as: Acedo Rodríguez, L.; Piqueras, P.; Moraño Fernández, JA. (2018). A possible flyby anomaly for Juno at Jupiter. Advances in Space Research. 61(10):2697-2706. https://doi.org/10.1016/j.asr.2018.02.037 The final publication is available at http://doi.org/10.1016/j.asr.2018.02.037 Copyright Elsevier Additional Information See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/321306820 A possible flyby anomaly for Juno at Jupiter Article in Advances in Space Research · November 2017 DOI: 10.1016/j.asr.2018.02.037 CITATION READS 1 149 3 authors, including: Luis Acedo José Antonio Moraño Universitat Politècnica de València Universitat Politècnica de València 93 PUBLICATIONS 1,145 CITATIONS 55 PUBLICATIONS 162 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: Call for Papers Complexity: Discrete Models in Epidemiology, Social Sciences, and Population Dynamics View project Call for Papers: Journal "Symmetry" (MDPI) Special Issue "Mathematical Epidemiology in Medicine & Social Sciences" View project All content following this page was uploaded by Luis Acedo on 28 February 2018. The user has requested enhancement of the downloaded file. A possible flyby anomaly for Juno at Jupiter L. Acedo,∗ P. Piqueras and J. A. Mora˜no Instituto Universitario de Matem´atica Multidisciplinar, Building 8G, 2o Floor, Camino de Vera, Universitat Polit`ecnica de Val`encia, Valencia, Spain December 14, 2017 Abstract In the last decades there have been an increasing interest in im- proving the accuracy of spacecraft navigation and trajectory data. -
Estimating Gale to Hurricane Force Winds Using the Satellite Altimeter
VOLUME 28 JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY APRIL 2011 Estimating Gale to Hurricane Force Winds Using the Satellite Altimeter YVES QUILFEN Space Oceanography Laboratory, IFREMER, Plouzane´, France DOUG VANDEMARK Ocean Process Analysis Laboratory, University of New Hampshire, Durham, New Hampshire BERTRAND CHAPRON Space Oceanography Laboratory, IFREMER, Plouzane´, France HUI FENG Ocean Process Analysis Laboratory, University of New Hampshire, Durham, New Hampshire JOE SIENKIEWICZ Ocean Prediction Center, NCEP/NOAA, Camp Springs, Maryland (Manuscript received 21 September 2010, in final form 29 November 2010) ABSTRACT A new model is provided for estimating maritime near-surface wind speeds (U10) from satellite altimeter backscatter data during high wind conditions. The model is built using coincident satellite scatterometer and altimeter observations obtained from QuikSCAT and Jason satellite orbit crossovers in 2008 and 2009. The new wind measurements are linear with inverse radar backscatter levels, a result close to the earlier altimeter high wind speed model of Young (1993). By design, the model only applies for wind speeds above 18 m s21. Above this level, standard altimeter wind speed algorithms are not reliable and typically underestimate the true value. Simple rules for applying the new model to the present-day suite of satellite altimeters (Jason-1, Jason-2, and Envisat RA-2) are provided, with a key objective being provision of enhanced data for near-real- time forecast and warning applications surrounding gale to hurricane force wind events. Model limitations and strengths are discussed and highlight the valuable 5-km spatial resolution sea state and wind speed al- timeter information that can complement other data sources included in forecast guidance and air–sea in- teraction studies. -
Schedule Book
Monday Morning, April 26, 2021 Live Session Room Live - Session LI-MoM1 Coatings for Flexible Electronics and Bio Applications Live Session Moderators: Dr. Jean Geringer, Ecole Nationale Superieure des Mines, France, Dr. Grzegorz (Greg) Greczynski, Linköping University, Sweden, Dr. Christopher Muratore, University of Dayton, USA, Dr. Barbara Putz, Empa, Switzerland 10:00am LI-MoM1-1 ICMCTF Chairs' Welcome Address, G. Greczynski, Linköping University, Sweden; C. Muratore, University of Dayton, USA 10:15am INVITED: LI-MoM1-2 Plenary Lecture: Organic Bioelectronics – Nature Connected, M. Berggren, Linköping University, Norrköping, Sweden 10:30am 10:45am 11:00am BREAK 11:15am INVITED: LI-MoM1-6 Flexible Printed Sensors for Biomechanical Measurements, T. Ng, University of California San Diego, USA 11:30am 11:45am INVITED: LI-MoM1-8 Flexible Electronics: From Interactive Smart Skins to In vivo Applications, D. Makarov, Helmholtz-Zentrum Dresden-Rossendorf e. V. (HZDR), Institute of Ion Beam Physics and Materials Research, Germany 12:00pm 12:15pm INVITED: LI-MoM1-10 Biomimetic Extracellular Matrix Coating for Titanium Implant Surfaces to Improve Osteointegration, S. Ravindran, P. Gajendrareddy, J. Hassan, C. Huang, University of Illinois at Chicago, USA 12:30pm 12:45pm LI-MoM1-12 Closing Remarks & Thank You!, C. Muratore, University of Dayton, USA; G. Greczynski, Linköping University, Sweden, USA Monday Morning, April 26, 2021 1 10:00 AM Monday Morning, April 26, 2021 Live Session Room Live - Session LI-MoM2 New Horizons in Boron-Containing Coatings Live Session Moderators: Mr. Marcus Hans, RWTH Aachen University, Germany, Dr. Helmut Riedl, TU Wien, Institute of Materials Science and Technology, Austria 11:00am LI-MoM2-1 Welcome & Thank You to Sponsors, M. -
Arxiv:0907.4184V1 [Gr-Qc] 23 Jul 2009 Keywords Anomalous Puzzle
Space Science Reviews manuscript No. (will be inserted by the editor) The Puzzle of the Flyby Anomaly Slava G. Turyshev · Viktor T. Toth Received: date / Accepted: date Abstract Close planetary flybys are frequently employed as a technique to place space- craft on extreme solar system trajectories that would otherwise require much larger booster vehicles or may not even be feasible when relying solely on chemical propulsion. The theo- retical description of the flybys, referred to as gravity assists, is well established. However, there seems to be a lack of understanding of the physical processes occurring during these dynamical events. Radio-metric tracking data received from a number of spacecraft that experienced an Earth gravity assist indicate the presence of an unexpected energy change that happened during the flyby and cannot be explained by the standard methods of mod- ern astrodynamics. This puzzling behavior of several spacecraft has become known as the flyby anomaly. We present the summary of the recent anomalous observations and discuss possible ways to resolve this puzzle. Keywords Flyby anomaly · gravitational experiments · spacecraft navigation. 1 Introduction Significant changes to a spacecraft’s trajectory require a substantial mass of propellant. In particular, placing a spacecraft on a highly elliptical or hyperbolic orbit, such as the orbit required for an encounter with another planet, requires the use of a large booster vehicle, substantially increasing mission costs. An alternative approach is to utilize a gravitational assist from an intermediate planet that can change the direction of the velocity vector. Al- arXiv:0907.4184v1 [gr-qc] 23 Jul 2009 though such an indirect trajectory can increase the duration of the cruise phase of a mission, the technique nevertheless allowed several interplanetary spacecraft to reach their target destinations economically (Anderson 1997; Van Allen 2003). -
Hawaiian Volcanoes: from Source to Surface Site Waikolao, Hawaii 20 - 24 August 2012
AGU Chapman Conference on Hawaiian Volcanoes: From Source to Surface Site Waikolao, Hawaii 20 - 24 August 2012 Conveners Michael Poland, USGS – Hawaiian Volcano Observatory, USA Paul Okubo, USGS – Hawaiian Volcano Observatory, USA Ken Hon, University of Hawai'i at Hilo, USA Program Committee Rebecca Carey, University of California, Berkeley, USA Simon Carn, Michigan Technological University, USA Valerie Cayol, Obs. de Physique du Globe de Clermont-Ferrand Helge Gonnermann, Rice University, USA Scott Rowland, SOEST, University of Hawai'i at M noa, USA Financial Support 2 AGU Chapman Conference on Hawaiian Volcanoes: From Source to Surface Site Meeting At A Glance Sunday, 19 August 2012 1600h – 1700h Welcome Reception 1700h – 1800h Introduction and Highlights of Kilauea’s Recent Eruption Activity Monday, 20 August 2012 0830h – 0900h Welcome and Logistics 0900h – 0945h Introduction – Hawaiian Volcano Observatory: Its First 100 Years of Advancing Volcanism 0945h – 1215h Magma Origin and Ascent I 1030h – 1045h Coffee Break 1215h – 1330h Lunch on Your Own 1330h – 1430h Magma Origin and Ascent II 1430h – 1445h Coffee Break 1445h – 1600h Magma Origin and Ascent Breakout Sessions I, II, III, IV, and V 1600h – 1645h Magma Origin and Ascent III 1645h – 1900h Poster Session Tuesday, 21 August 2012 0900h – 1215h Magma Storage and Island Evolution I 1215h – 1330h Lunch on Your Own 1330h – 1445h Magma Storage and Island Evolution II 1445h – 1600h Magma Storage and Island Evolution Breakout Sessions I, II, III, IV, and V 1600h – 1645h Magma Storage -
Improved Quality Control for Quikscat Near Real-Time Data
JP4.6 Improved Quality Control for QuikSCAT Near Real-time Data S. Mark Leidner, Ross N. Hoffman, and Mark C. Cerniglia Atmospheric and Environmental Research Inc., Lexington, Massachusetts Abstract errors. We will illustrate the types of errors that occur due to rain contamination and ambiguity removal. SeaWinds on QuikSCAT, launched in June 1999, We will also give examples of how the quality of the provides a new source of surface wind information retrieved winds varies across the satellite track, and over the world’s oceans. This new window on global varies with wind speed. surface vector winds has been a great aid to real- SeaWinds is an active, Ku-band microwave radar time operational users, especially in remote areas operating near ¢¤£¦¥¨§ © and is sensitive to centimeter- of the world. As with in situ observations, the qual- scale or capillary waves on the ocean surface. ity of remotely-sensed geophysical data is closely These waves are usually in equilibrium with the wind. tied to the characteristics of the instrument. But Each radar backscatter observation samples a patch remotely-sensed scatterometer winds also have a of ocean about . The vector wind is re- whole range of additional quality control concerns trieved by combining several backscatter observa- different from those of in situ observation systems. tions made from multiple viewing geometries as the The retrieval of geophysical information from the raw scatterometer passes overhead. The resolution of satellite measurements introduces uncertainties but the retrieved winds is . also produces diagnostics about the reliability of the Backscatter from capillary waves on the ocean retrieved quantities. -
Watching the Winds Where Sea Meets Sky 14 August 2014, by Rosalie Murphy
Watching the winds where sea meets sky 14 August 2014, by Rosalie Murphy the speed and direction of wind at the ocean's surface. "Before scatterometers, we could only measure ocean winds on ships, and sampling from ships is very limited," said Timothy Liu of NASA's Jet Propulsion Laboratory in Pasadena, California, who led the science team for NASA's QuikScat mission. Scatterometry began to emerge during World War II, when scientists realized wind disturbing the ocean's surface caused noise in their radar signals. NASA included an experimental scatterometer in its The SeaWinds scatterometer on NASA's QuikScat first space station in 1973 and again when it satellite stares into the eye of 1999's Hurricane Floyd as launched its SeaSat satellite in 1978. During its it hits the U.S. coast. The arrows indicate wind direction, three-month life, SeaSat's scatterometer provided while the colors represent wind speed, with orange and scientists with more individual wind observations yellow being the fastest. Credit: NASA/JPL-Caltech than ships had collected in the previous century. The ocean covers 71 percent of Earth's surface and affects weather over the entire globe. Hurricanes and storms that begin far out over the ocean affect people on land and interfere with shipping at sea. And the ocean stores carbon and heat, which are transported from the ocean to the air and back, allowing for photosynthesis and affecting Earth's climate. To understand all these processes, scientists need information about winds A JPL team then designed a mission called near the ocean's surface. -
High Precision Modelling of Thermal Perturbations with Application to Pioneer 10 and Rosetta
High precision modelling of thermal perturbations with application to Pioneer 10 and Rosetta Vom Fachbereich Produktionstechnik der UNIVERSITAT¨ BREMEN zur Erlangung des Grades Doktor-Ingenieur genehmigte Dissertation von Dipl.-Ing. Benny Rievers Gutachter: Prof. Dr.-Ing. Hans J. Rath Prof. Dr. rer. nat. Hansj¨org Dittus Fachbereich Produktionstechnik Fachbereich Produktionstechnik Universit¨at Bremen Universit¨at Bremen Tag der m¨undlichen Pr¨ufung: 13. Januar 2012 i Kurzzusammenfassung in Deutscher Sprache Das Hauptthema dieser Doktorarbeit ist die pr¨azise numerische Bestimmung von Thermaldruck (TRP) und Solardruck (SRP) f¨ur Satelliten mit komplexer Geome- trie. F¨ur beide Effekte werden analytische Modelle entwickelt und als generischen numerischen Methoden zur Anwendung auf komplexe Modellgeometrien umgesetzt. Die Analysemethode f¨ur TRP wird zur Untersuchung des Thermaldrucks f¨ur den Pio- neer 10 Satelliten f¨ur den kompletten Zeitraum seiner 30-j¨ahrigen Mission verwendet. Hierf¨ur wird ein komplexes dreidimensionales Finite-Elemente Modell des Satelliten einschließlich detaillierter Materialmodelle sowie dem detailliertem ¨außerem und in- nerem Aufbau entwickelt. Durch die Spezifizierung von gemessenen Temperaturen, der beobachteten Trajektorie sowie detaillierten Modellen f¨ur die W¨armeabgabe der verschiedenen Komponenten, wird eine genaue Verteilung der Temperaturen auf der Oberfl¨ache von Pioneer 10 f¨ur jeden Zeitpunkt der Mission bestimmt. Basierend auf den Ergebnissen der Temperaturberechnung wird der resultierende Thermaldruck mit Hilfe einer Raytracing-Methode unter Ber¨ucksichtigung des Strahlungsaustauschs zwischen den verschiedenen Oberf¨achen sowie der Mehrfachreflexion, berechnet. Der Verlauf des berechneten TRPs wird mit den von der NASA ver¨offentlichten Pioneer 10 Residuen verglichen, und es wird aufgezeigt, dass TRP die so genannte Pioneer Anomalie inner- halb einer Modellierungsgenauigkeit von 11.5 % vollst¨andig erkl¨aren kann. -
The Ship 2014/2015
A more unusual focus in your magazine this College St Anne’s year: architecture and the engineering skills that make our modern buildings possible. The start of our new building made this an obvious choice, but from there we go on to look at engineering as a career and at the failures and University of Oxford follies of megaprojects around the world. Not that we are without the usual literary content, this year even wider in range and more honoured by awards than ever. And, as always, thanks to the generosity and skills of our contributors, St Anne’s College Record a variety of content and experience that we hope will entertain, inspire – and at times maybe shock you. My thanks to the many people who made this issue possible, in particular Kate Davy, without whose support it could not happen. Hope you enjoy it – and keep the ideas coming; we need 2014 – 2015 them! - Number 104 - The Ship Annual Publication of the St Anne’s Society 2014 – 2015 The Ship St Anne’s College 2014 – 2015 Woodstock Road Oxford OX2 6HS UK The Ship +44 (0) 1865 274800 [email protected] 2014 – 2015 www.st-annes.ox.ac.uk St Anne’s College St Anne’s College Alumnae log-in area Development Office Contacts: Lost alumnae Register for the log-in area of our website Over the years the College has lost touch (available at https://www.alumniweb.ox.ac. Jules Foster with some of our alumnae. We would very uk/st-annes) to connect with other alumnae, Director of Development much like to re-establish contact, and receive our latest news and updates, and +44 (0)1865 284536 invite them back to our events and send send in your latest news and updates. -
Cfa in the News ~ Week Ending 3 January 2010
Wolbach Library: CfA in the News ~ Week ending 3 January 2010 1. New social science research from G. Sonnert and co-researchers described, Science Letter, p40, Tuesday, January 5, 2010 2. 2009 in science and medicine, ROGER SCHLUETER, Belleville News Democrat (IL), Sunday, January 3, 2010 3. 'Science, celestial bodies have always inspired humankind', Staff Correspondent, Hindu (India), Tuesday, December 29, 2009 4. Why is Carpenter defending scientists?, The Morning Call, Morning Call (Allentown, PA), FIRST ed, pA25, Sunday, December 27, 2009 5. CORRECTIONS, OPINION BY RYAN FINLEY, ARIZONA DAILY STAR, Arizona Daily Star (AZ), FINAL ed, pA2, Saturday, December 19, 2009 6. We see a 'Super-Earth', TOM BEAL; TOM BEAL, ARIZONA DAILY STAR, Arizona Daily Star, (AZ), FINAL ed, pA1, Thursday, December 17, 2009 Record - 1 DIALOG(R) New social science research from G. Sonnert and co-researchers described, Science Letter, p40, Tuesday, January 5, 2010 TEXT: "In this paper we report on testing the 'rolen model' and 'opportunity-structure' hypotheses about the parents whom scientists mentioned as career influencers. According to the role-model hypothesis, the gender match between scientist and influencer is paramount (for example, women scientists would disproportionately often mention their mothers as career influencers)," scientists writing in the journal Social Studies of Science report (see also ). "According to the opportunity-structure hypothesis, the parent's educational level predicts his/her probability of being mentioned as a career influencer (that ism parents with higher educational levels would be more likely to be named). The examination of a sample of American scientists who had received prestigious postdoctoral fellowships resulted in rejecting the role-model hypothesis and corroborating the opportunity-structure hypothesis.