Primefocus Tri-Valley Stargazers January 2016
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NASA Ames Jim Arnold, Craig Burkhardt Et Al
The re-entry of artificial meteoroid WT1190F AIAA SciTech 2016 1/5/2016 2008 TC3 Impact October 7, 2008 Mohammad Odeh International Astronomical Center, Abu Dhabi Peter Jenniskens SETI Institute Asteroid Threat Assessment Project (ATAP) - NASA Ames Jim Arnold, Craig Burkhardt et al. Michael Aftosmis - NASA Ames 2 Darrel Robertson - NASA Ames Next TC3 Consortium http://impact.seti.org Mission Statement: Steve Larson (Catalina Sky Survey) “Be prepared for the next 2008 TC3 John Tonry (ATLAS) impact” José Luis Galache (Minor Planet Center) Focus on two aspects: Steve Chesley (NASA JPL) 1. Airborne observations of the reentry Alan Fitzsimmons (Queen’s Univ. Belfast) 2. Rapid recovery of meteorites Eileen Ryan (Magdalena Ridge Obs.) Franck Marchis (SETI Institute) Ron Dantowitz (Clay Center Observatory) Jay Grinstead (NASA Ames Res. Cent.) Peter Jenniskens (SETI Institute - POC) You? 5 NASA/JPL “Sentry” early alert October 3, 2015: WT1190F Davide Farnocchia (NASA/JPL) Catalina Sky Survey: Richard Kowalski Steve Chesley (NASA/JPL) Marco Michelli (ESA NEOO CC) 6 WT1190F Found: October 3, 2015: one more passage Oct. 24 Traced back to: 2013, 2012, 2011, …, 2009 Re-entry: Friday November 13, 2015 10.61 km/s 20.6º angle Bill Gray 11 IAC + UAE Space Agency chartered commercial G450 Mohammad Odeh (IAC, Abu Dhabi) Support: UAE Space Agency Dexter Southfield /Embry-Riddle AU 14 ESA/University Stuttgart 15 SETI Institute 16 Dexter Southfield team Time UAE Camera Trans-Lunar Insertion Stage Leading candidate (1/13/2016): LUNAR PROSPECTOR T.L.I.S. Launch: January 7, 1998 UT Lunar Prospector itself was deliberately crashed on Moon July 31, 1999 Carbon fiber composite Spin hull thrusters Titanium case holds Amonium Thiokol Perchlorate fuel and Star Stage 3700S HTPB binder (both contain H) P.I.: Alan Binder Scott Hubbard 57-minutes later: Mission Director Separation of TLIS NASA Ames http://impact.seti.org 30 . -
Arxiv:1710.07684V1 [Astro-Ph.EP] 20 Oct 2017 Significant Non-Gravitational Perturbations Due to the Effects of Radiation Pressure (Gray, 2015)
The observing campaign on the deep-space debris WT1190F as a test case for short-warning NEO impacts Marco Michelia,b,, Alberto Buzzonic, Detlef Koschnya,d,e, Gerhard Drolshagena,f, Ettore Perozzih,a,g, Olivier Hainauti, Stijn Lemmensj, Giuseppe Altavillac,b, Italo Foppianic, Jaime Nomenk, Noelia Sánchez-Ortizk, Wladimiro Marinellol, Gianpaolo Pizzettil, Andrea Soffiantinil, Siwei Fanm, Carolin Fruehm aESA SSA-NEO Coordination Centre, Largo Galileo Galilei, 1, 00044 Frascati (RM), Italy bINAF - Osservatorio Astronomico di Roma, Via Frascati, 33, 00040 Monte Porzio Catone (RM), Italy cINAF - Osservatorio Astronomico di Bologna, Via Gobetti, 93/3, 40129 Bologna (BO), Italy dESTEC, European Space Agency, Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands eTechnical University of Munich, Boltzmannstraße 15, 85748 Garching bei München, Germany fSpace Environment Studies - Faculty VI, Carl von Ossietzky University of Oldenburg, 26111 Oldenburg, Germany gDeimos Space Romania, Strada Buze¸sti75-77, Bucure¸sti011013, Romania hAgenzia Spaziale Italiana, Via del Politecnico, 1, 00133 Roma (RM), Italy iEuropean Southern Observatory, Karl-Schwarzschild-Straße 2, 85748 Garching bei München, Germany jESA Space Debris Office, Robert-Bosch-Straße 5, 64293 Darmstadt, Germany kDeimos Space S.L.U., Ronda de Pte., 19, 28760 Tres Cantos, Madrid, Spain lOsservatorio Astronomico “Serafino Zani”, Colle San Bernardo, 25066 Lumezzane Pieve (BS), Italy mSchool of Aeronautics and Astronautics, Purdue University, 701 W Stadium Ave, West Lafayette, IN 47907, USA Abstract On 2015 November 13, the small artificial object designated WT1190F entered the Earth atmosphere above the Indian Ocean offshore Sri Lanka after being discovered as a possible new asteroid only a few weeks earlier. At ESA’s SSA-NEO Coordination Centre we took advantage of this opportunity to organize a ground-based observational campaign, using WT1190F as a test case for a possible similar future event involving a natural asteroidal body. -
Radar-Enabled Recovery of the Sutter's Mill Meteorite, A
RESEARCH ARTICLES the area (2). One meteorite fell at Sutter’sMill (SM), the gold discovery site that initiated the California Gold Rush. Two months after the fall, Radar-Enabled Recovery of the Sutter’s SM find numbers were assigned to the 77 me- teorites listed in table S3 (3), with a total mass of 943 g. The biggest meteorite is 205 g. Mill Meteorite, a Carbonaceous This is a tiny fraction of the pre-atmospheric mass, based on the kinetic energy derived from Chondrite Regolith Breccia infrasound records. Eyewitnesses reported hearing aloudboomfollowedbyadeeprumble.Infra- Peter Jenniskens,1,2* Marc D. Fries,3 Qing-Zhu Yin,4 Michael Zolensky,5 Alexander N. Krot,6 sound signals (table S2A) at stations I57US and 2 2 7 8 8,9 Scott A. Sandford, Derek Sears, Robert Beauford, Denton S. Ebel, Jon M. Friedrich, I56US of the International Monitoring System 6 4 4 10 Kazuhide Nagashima, Josh Wimpenny, Akane Yamakawa, Kunihiko Nishiizumi, (4), located ~770 and ~1080 km from the source, 11 12 10 13 Yasunori Hamajima, Marc W. Caffee, Kees C. Welten, Matthias Laubenstein, are consistent with stratospherically ducted ar- 14,15 14 14,15 16 Andrew M. Davis, Steven B. Simon, Philipp R. Heck, Edward D. Young, rivals (5). The combined average periods of all 17 18 18 19 20 Issaku E. Kohl, Mark H. Thiemens, Morgan H. Nunn, Takashi Mikouchi, Kenji Hagiya, phase-aligned stacked waveforms at each station 21 22 22 22 23 Kazumasa Ohsumi, Thomas A. Cahill, Jonathan A. Lawton, David Barnes, Andrew Steele, of 7.6 s correspond to a mean source energy of 24 4 24 2 25 Pierre Rochette, Kenneth L. -
Career Pages of Astronomer Dr. Peter Jenniskens Peter Jenniskens, Ph.D
10/8/2014 Career pages of astronomer Dr. Peter Jenniskens Peter Jenniskens, Ph.D. Meteor astronomer Carl Sagan Center, The SETI Institute. E-mail: Petrus.M.Jenniskens [at] nasa.gov, Tel: 1 (650) 810 0216; Fax: 1 (650) 962 9419 Last update: December 08, 2008; List of Publications Curriculum vitae Astronomer Dr. Peter Jenniskens [Portrait (3.2 Mbyte)] is a Research Scientist with the Carl Sagan Center at the SETI Institute and works on mission projects at NASA/Ames Research Center in Moffett Field, California, and on research topics that relate to interstellar and interplanetary matter. Research Interests: Meteor showers - Jenniskens is an expert on meteor showers, and is known for identifying the parent body of the Quadrantid shower: a minor planet called 2003 EH1. Main belt asteroid 1999 TY224 was named (42981) "Jenniskens". He is the Principal Investigator of ASIMA - the Asteroid Impact Analyzer, a proposed satellite mission (2014-2016) to measure the carbon content of meteors from space and study the diversity of comets and asteroids. He predicted the return of the unusual Aurigid shower from dust ejected around 4 AD by long-period comet Kiess on September 1, 2007, and was the Principal Investigator of the Aurigid Multi-Instrument Aircraft Campaign (Aurigid MAC), an airborne mission that deployed from NASA Ames to study this meteor outburst. This was followed by a study of dust ejected by comet 8P/Tuttle (Ursid MAC) in December 2007, and a mission in January 2008 to study the Quadrantid meteor shower for clues to its date of origin (Quadrantid MAC). Before that, Jenniskens was the Principal Investigator of NASA's first Astrobiology mission, Leonid MAC, an airborne campaign to explore the 1998 - 2002 Leonid storms and study meteoroids and their paths from extra-terrestrial to terrestrial matter. -
The 1999 Leonid Multi.Instrument Aircraft Campaign - an Early Review
THE 1999 LEONID MULTI.INSTRUMENT AIRCRAFT CAMPAIGN - AN EARLY REVIEW PETER JENNISKENS _, STEVEN J. BUTOW _, AND MARK FONDA NASA Ames Research Center, Mai_ Stop 239-4, Moffett Field, CA 94035-1000 I with SETI Institute E.mail: [email protected] (Received 10 July 2000; Accepted 15August 2000) Abstract. The Leonid meteor storm of 1999 was observed from two B707-type research aircraft by a team of 35 scientists of seven nationalities over the Mediterranean Sea on Nov. 18, 1999. The mission was sponsored by various science programs of NASA, and offered the best possible observing conditions, free of clouds and at a prime location for viewing the storm. The 1999 mission followed a similar effort in 1998, improving upon mission strategy and scope. As before, spectroscopic and imaging experiments targeted meteors and persistent trains, but also airglow, aurora, elves and sprites. The research aimed to address outstanding questions in Planetary Science, Astronomy, Astrobiology and upper atmospheric research, including Aeronomie. In addition, near real-time flux measurements contributed to a USAF sponsored program for space weather awareness. An overview of the first results is given, which are discussed in preparation for future missions. Keywords: Airborne astronomy, astrobiology, chemistry, comets, composition, elves, exobiology, instrumental techniques, Leonid MAC, Leonids 1999, lower thermosphere, meteoroids, meteor storm, meteors, mesosphere, orbital dynamics, satellite impact hazard, sprites 1. Introduction The widely anticipated return of the Leonid shower in November of 1999 offered our best chance yet to observe a meteor storm with modern techniques. Just prior to the last year's campaign, E.A. -
2008 TC3: the Small Asteroid with an Impact
Meteoritics & Planetary Science 45, Nr 10–11, 1553–1556 (2010) doi: 10.1111/j.1945-5100.2010.01156.x Introduction 2008 TC3: The small asteroid with an impact The story is now familiar: On October 6, 2008, THE IMPACT OF 2008 TC3 ON METEORITICS & Richard Kowalski at the Catalina Sky Survey in PLANETARY SCIENCE Arizona spotted a small 3 m sized asteroid, now named 2008 TC3. It was soon discovered that, 20 h later, this And what an asteroid it was! The research asteroid was to impact Earth. Steve Chesley of presented here sheds new light on the smelting process NASA ⁄ JPL calculated an impact location in the Nubian recognized in the ureilites. The cooling rates calculated desert of northern Sudan. In the hours before impact, from the quenching of the smelting implied that a astronomers measured the light curve of the rare protoplanet broke in 10–100 m sized fragments tumbling asteroid and a reflectance spectrum, describing following a giant collision. Those fragments were later its shape and taxonomic type. This was the first time that ground down into the tiny pieces found in 2008 TC3, an asteroid was studied in space before hitting the Earth. presumably in subsequent collisions. The final fragments In the predawn hour of October 7, satellites gathered in loosely welded together assemblages of recorded the fireball west of Station 6, putting the main small millimeter and sub-millimeter sized fragments, )20 magnitude detonation at a high 37 km altitude. The with much pore space in between. Other fragments of impact happened around the time of morning prayer. -
Aerospace Micro-Lesson
AIAA AEROSPACE MICRO-LESSON Easily digestible Aerospace Principles revealed for K-12 Students and Educators. These lessons will be sent on a bi-weekly basis and allow grade-level focused learning. - AIAA STEM K-12 Committee TRASH IN SPACE A mysterious object about six feet across is predicted to enter the atmosphere and burn up on Friday, November 13. Here are a couple of links with information on the item and the event (a quick internet search for "WT1190F" will bring up much more): https://en.wikipedia.org/wiki/WT1190F http://www.nature.com/news/incoming-space-junk-a-scientific-opportunity-1.18642 http://www.slate.com/blogs/bad_astronomy/2015/10/27/wt1190f_rocket_booster_will_re_e nter_on_november_13_2015.html As this piece is being written, very little is known about this object; more will likely be discovered between the writing and the reading of it. The reader is encouraged to search the internet briefly to find up-to-date information. GRADES K-2 WT1190F is a piece of space debris. That means that it is a piece of garbage orbiting high above Earth. How did it get there? (Answer: Astronauts leave debris in space when they go on missions because gravity there will not pull things down to a convenient floor for them to sweep. One astronaut lost a tool bag outside the Space Station in 2008 when it drifted away from her. Also, old rocket parts, supplies, and old equipment can all end up as space debris.) What kinds of things orbit earth? (Answer: Satellites, space stations, astronauts, rockets, the Moon, rocks, and other things.) What is “orbit”? (Answer: If something is in orbit, it means it is travelling in big circles around the earth. -
Inner Workings: Networks of Cameras Are Tracking Meteorites With
INNER WORKINGS INNER WORKINGS Networks of cameras are tracking meteorites with unprecedented precision Danielle Venton, Science Writer Around the globe, networks of camera lenses are which asteroids or near-earth region of space from trained upward. They scan the night skies, aiming to which the rocks emanate. Those participating in these catch streaks of bright light: meteorites as they fall to networks are photographing, tracking, and hunting Earth. Searching for these space rocks is not new. down meteorites. But the precision and resolution with which increasingly The DFN consists of 52 autonomous digital cam- expansive networks of Earth-bound cameras are track- eras placed in the hot, dry Nullarbor desert, with an- ing meteorites is starting to offer insights into both other dozen cameras scattered in multiple countries. where these bodies go and where they came from. Waterproof containers help the cameras survive the For astronomers, catching sight of a meteor is Australian outback; inbuilt fans keep the cameras cool more than a stroke of luck. It represents a potentially through the day. The project is a collaboration be- valuable research sample that has fallen to Earth. tween Imperial College London, Ondrejov Observa- “These are samples of heavenly bodies reaching us tory in the Czech Republic, Curtin University in Western decades before we might actually go there,” says Australia, and the Western Australian Museum. Phil Bland, planetary scientist at Curtin University To help achieve a high-resolution view of the skies, and director of the Desert Fireball Network (DFN) the network also enlists citizen scientists. According to in Australia. His network is one of several high-tech the project’s website, more than 26,000 people in attempts to track and gather meteorites in the 88 countries have downloaded the app “Fireballs in hopes of understanding their origins, frequency, the Sky.” Users point their phones to the place in the and composition. -
Vol. 3 No. 3 - December 2016
VOL. 3 NO. 3 - DECEMBER 2016 Editors: Michael T. Kezirian, Ph.D. Joseph Pelton, Ph.D. Tommaso Sgobba Journal of Space Safety Engineering – Vol. 3 No. 3 - December 2016 JOURNAL of SPACE SAFETY ENGINEERING Volume 3 No. 3 – December 2016 EDITORS Michael T. Kezirian, Ph.D. Tommaso Sgobba Joseph Pelton, Ph.D. The Boeing Company European Space Agency (ret.) George Washington University (ret.) University of Southern California Senior Editor Senior Editor Editor-in-Chief EDITORIAL BOARD George W. S. Abbey Joe H. Engle Isabelle Rongier National Aeronautics and Space Administration (ret.) Maj Gen. USAF (ret.) Airbus Safran Launchers Sayavur Bakhtiyarov, Ph.D. National Aeronautics and Space Administration Kai-Uwe Schrogl, Ph.D. University of New Mexico Herve Gilibert European Space Agency Kenneth Cameron Airbus Space & Defense Zhumabek Zhantayev Science Applications International Corporation Jeffrey A. Hoffman, Ph.D. National Center of Space Researches and Luigi De Luca, Ph.D. Massachusetts Institute of Technology Technologies (NCSRT)- Kazakhstan Politecnico di Milano Ernst Messerschmid, Ph.D. University of Stuttgart (ret.) FIELD EDITORS William Ailor, Ph.D. Gary Johnson Erwin Mooij, Ph.D. The Aerospace Corporation Science Application International Corporation Delft University of Technology Christophe Bonnal Barbara Kanki John D. Olivas, PhD, PE Centre National d’Etudes Spatiales National Aeronautics and Space Administration (ret.) University of Texas El Paso Jonathan B. Clark, M.D., M.P.H Bruno Lazare Nobuo Takeuchi Baylor College of Medicine Centre National d’Etudes Spatiales Japan Aerospace Exploration Agency Victor Chang Carine Leveau Brian Weeden Canadian Space Agency Centre National d’Etudes Spatiales Secure World Foundation Paul J. Coleman, Jr., Ph.D. -
7 X 11 Long.P65
Cambridge University Press 978-0-521-85349-1 - Meteor Showers and their Parent Comets Peter Jenniskens Frontmatter More information Meteor Showers and Their Parent Comets It is only in the past ten years that advanced computing techniques and painstaking observations have enabled the successful prediction and observation of meteor storms. Spectacular displays of ‘‘shooting stars’’ are created when the Earth crosses a meteoroid stream, causing the meteoroids to light up into meteors as they enter our atmosphere. Meteor Showers and Their Parent Comets is a unique handbook for astronomers interested in observing meteor storms and outbursts. The author, a leading astro- nomer in the field and an active meteor storm chaser, explains how meteoroid streams originate from the decay of comets (and asteroids) and how they evolve into ever changing orbits by the gravitational pull of planets to cause meteor showers on Earth. He includes the findings of recent space missions that have visited comets and asteroids, the risk of meteoroid impacts on Earth, what showers to expect on other planets, and how meteor showers may have seeded the Earth with the ingredients that made life possible. All known meteor showers are identified, accompanied by fascinating details on the most important showers and their parent comets. The book predicts when exceptional meteor showers will occur over the next 50 years, making it a valuable resource for both amateur and professional astronomers. Astronomer P ETER J ENNISKENS completed his Ph.D. at Leiden University, the Netherlands, in 1992. He then worked as a National Research Council Associate at the Exobiology branch of the NASA Ames Research Center in Moffett Field, California, where he uncovered exotic properties of astrophysical ices, such as those in comets. -
Physical Characterization of the Deep-Space Debris WT1190F: a Testbed for Advanced SSA Techniques✩
Physical characterization of the deep-space debris WT1190F: a testbed for advanced SSA techniques✩ Alberto Buzzoni∗ INAF - Osservatorio di Astrofisica e Scienza dello Spazio, Via Gobetti 93/3 40129 Bologna Italy Giuseppe Altavilla INAF - Osservatorio Astronomico di Roma, Via Frascati 33 00040 Monte Porzio Catone (RM), Italy Siwei Fan, Carolin Frueh School of Aeronautics and Astronautics, Purdue University, 701 W. Stadium Ave. West Lafayette, IN 47907-2045 USA Italo Foppiani INAF - Osservatorio di Astrofisica e Scienza dello Spazio, Via Gobetti 93/3 40129 Bologna Italy Marco Micheli ESA SSA-NEO Coordination Centre, ESRIN, Frascati, Italy INAF - Osservatorio Astronomico di Roma, Via Frascati 33 00040 Monte Porzio Catone (RM), Italy Jaime Nomen, Noelia S´anchez-Ortiz DEIMOS Space S.L.U., Ronda de Poniente 19, 2-2, Tres Cantos, Madrid 28760, Spain Abstract We report on extensive BVRcIc photometry and low-resolution (λ/∆λ 250) spectroscopy of the deep-space debris WT1190F, which impacted Earth offshore from Sri Lanka, on 2015 November∼ 13. In spite of its likely artificial origin (as a relic of some past lunar mission), the case offered important points of discussion for its suggestive connection with the envisaged scenario for a (potentially far more dangerous) natural impactor, like an asteroid or a comet. Our observations indicate for WT1190F an absolute magnitude Rc = 32.45±0.31, with a flat dependence of reflectance −1 on the phase angle, such as dR /dφ 0.007± mag deg . The detected short-timescale variability suggests that the c ∼ 2 body was likely spinning with a period twice the nominal figure of Pflash = 1.4547±0.0005 s, as from the observed lightcurve. -
Annexe I : Description Des Services D’Observations Labellisés Liés À La Planétologie
Annexe I : description des services d’observations labellisés liés à la planétologie Consultation BDD Service des éphémérides Type AA-ANO1 Coordination Intitulé OSU Directeur de l'OSU Responsable du SNO Email du responsable du SNO IMCCE Jacques LASKAR Jacques LASKAR [email protected] Partenaires Intitulé OSU Directeur de l'OSU Resp. du SNO dans l'OSU Email du resp. du SNO dans l'OSU Obs. Paris Claude CATALA OCA Thierry LANZ Agnès FIENGA [email protected] Description L'IMCCE a la responsabilité, sous l'égide du Bureau des longitudes, de produire et de diffuser les calendriers et éphémérides au niveau national. Cette fonction est assurée l'institut par son Service des éphémérides. Aussi celui-ci a) produit les publications et éditions annuelles tout comme les éphémérides en ligne, b) diffuse les éphémérides de divers corps du système solaire - naturels et artificiels, et de phénomènes célestes, c) assure la maintenance et la mise jour des bases de données, d) procure une expertise juridique aux tribunaux, e) procure des éphémérides et données la demande pour les services similaires (USA, Japon), les agences, les chercheurs, les laboratoires et les observatoires. Consultation BDD Gaia Type AA-ANO1, AA-ANO4 Coordination Intitulé OSU Directeur de l'OSU Responsable du SNO Email du responsable du SNO OCA Thierry LANZ François MIGNARD [email protected] Partenaires Intitulé OSU Directeur de l'OSU Resp. du SNO dans l'OSU Email du resp. du SNO dans l'OSU Obs. Paris Claude CATALA Frédéric ARENOU [email protected] IMCCE Jacques LASKAR Daniel HESTROFFER [email protected] OASU Marie Lise DUBERNET-TUCKEY Caroline SOUBIRAN [email protected] THETA Philippe ROUSSELOT Annie ROBIN [email protected] IAP Francis BERNARDEAU Brigitte ROCCA VOLMERANGE [email protected] ObAS Pierre-Alain DUC Jean-Louis HALBWACHS [email protected] Description Participation aux activités du Consortium DPAC (Data Processing and Analysis Consortium) pour la mission Gaia.