Asteroid Redirect Mission (ARM) Formulation Assessment and Support Team (FAST) Final Report

Total Page:16

File Type:pdf, Size:1020Kb

Asteroid Redirect Mission (ARM) Formulation Assessment and Support Team (FAST) Final Report NASA/TM–2016-219011 Asteroid Redirect Mission (ARM) Formulation Assessment and Support Team (FAST) Final Report Daniel D. Mazanek and David M. Reeves, Langley Research Center, Hampton, Virginia Paul A. Abell, Johnson Space Center, Houston, Texas Erik Asphaug, Arizona State University, Tempe, Arizona Neyda M. Abreu, Penn State DuBois, DuBois, Pennsylvania James F. Bell, Arizona State University, Tempe, Arizona William F. Bottke, Southwest Research Institute, Boulder, Colorado Daniel T. Britt and Humberto Campins, University of Central Florida, Orlando, Florida Paul W. Chodas, Jet Propulsion Laboratory, Pasadena, California Carolyn M. Ernst, John Hopkins University, Laurel, Maryland Marc D. Fries, Johnson Space Center, Houston, Texas Leslie S. Gertsch, Missouri University of Science and Technology, Rolla, Missouri Daniel P. Glavin, Goddard Space Flight Center, Greenbelt, Maryland Christine M. Hartzell, University of Maryland, College Park, Maryland Amanda R. Hendrix, Planetary Science Institute, Niwot, Colorado Joseph A. Nuth, Goddard Space Flight Center, Greenbelt, Maryland Daniel J. Scheeres, University of Colorado, Boulder, Colorado Joel C. Sercel, TransAstra Corporation, Lake View Terrace, California Driss Takir, United States Geological Survey, Flagstaff, Arizona Kris Zacny, Honeybee Robotics, Pasadena, California February 2016 NASA STI Program ... in Profile Since its founding, NASA has been dedicated to the CONFERENCE PUBLICATION. advancement of aeronautics and space science. The Collected papers from scientific and technical NASA scientific and technical information (STI) conferences, symposia, seminars, or other program plays a key part in helping NASA maintain meetings sponsored or this important role. co-sponsored by NASA. The NASA STI program operates under the auspices SPECIAL PUBLICATION. Scientific, technical, or of the Agency Chief Information Officer. It collects, historical information from NASA programs, organizes, provides for archiving, and disseminates projects, and missions, often concerned with NASA’s STI. The NASA STI program provides access subjects having substantial public interest. to the NTRS Registered and its public interface, the NASA Technical Reports Server, thus providing one TECHNICAL TRANSLATION. of the largest collections of aeronautical and space English-language translations of foreign science STI in the world. Results are published in both scientific and technical material pertinent to non-NASA channels and by NASA in the NASA STI NASA’s mission. Report Series, which includes the following report types: Specialized services also include organizing and publishing research results, distributing TECHNICAL PUBLICATION. Reports of completed specialized research announcements and feeds, research or a major significant phase of research providing information desk and personal search that present the results of NASA Programs and support, and enabling data exchange services. include extensive data or theoretical analysis. Includes compilations of significant scientific and For more information about the NASA STI program, technical data and information deemed to be of see the following: continuing reference value. NASA counter-part of peer-reviewed formal professional papers but has Access the NASA STI program home page at less stringent limitations on manuscript length and http://www.sti.nasa.gov extent of graphic presentations. E-mail your question to [email protected] TECHNICAL MEMORANDUM. Scientific and technical findings that are Phone the NASA STI Information Desk at preliminary or of specialized interest, 757-864-9658 e.g., quick release reports, working papers, and bibliographies that contain minimal Write to: annotation. Does not contain extensive analysis. NASA STI Information Desk Mail Stop 148 CONTRACTOR REPORT. Scientific and technical NASA Langley Research Center findings by NASA-sponsored contractors and Hampton, VA 23681-2199 grantees. NASA/TM–2016-219011 Asteroid Redirect Mission (ARM) Formulation Assessment and Support Team (FAST) Final Report Daniel D. Mazanek and David M. Reeves, Langley Research Center, Hampton, Virginia Paul A. Abell, Johnson Space Center, Houston, Texas Erik Asphaug, Arizona State University, Tempe, Arizona Neyda M. Abreu, Penn State DuBois, DuBois, Pennsylvania James F. Bell, Arizona State University, Tempe, Arizona William F. Bottke, Southwest Research Institute, Boulder, Colorado Daniel T. Britt and Humberto Campins, University of Central Florida, Orlando, Florida Paul W. Chodas, Jet Propulsion Laboratory, Pasadena, California Carolyn M. Ernst, John Hopkins University, Laurel, Maryland Marc D. Fries, Johnson Space Center, Houston, Texas Leslie S. Gertsch, Missouri University of Science and Technology, Rolla, Missouri Daniel P. Glavin, Goddard Space Flight Center, Greenbelt, Maryland Christine M. Hartzell, University of Maryland, College Park, Maryland Amanda R. Hendrix, Planetary Science Institute, Niwot, Colorado Joseph A. Nuth, Goddard Space Flight Center, Greenbelt, Maryland Daniel J. Scheeres, University of Colorado, Boulder, Colorado Joel C. Sercel, TransAstra Corporation, Lake View Terrace, California Driss Takir, United States Geological Survey, Flagstaff, Arizona Kris Zacny, Honeybee Robotics, Pasadena, California National Aeronautics and Space Administration Langley Research Center Hampton, Virginia 23681-2199 February 2016 The use of trademarks or names of manufacturers in this report is for accurate reporting and does not constitute an official endorsement, either expressed or implied, of such products or manufacturers by the National Aeronautics and Space Administration. Available from: NASA STI Program / Mail Stop 148 NASA Langley Research Center Hampton, VA 23681-2199 Fax: 757-864-6500 Asteroid Redirect Mission (ARM) Formulation Assessment and Support Team (FAST) Final Report February 2016 This Page left Intentionally Blank 1 Contents Executive Summary ....................................................................................................................................... 3 FAST Overview ............................................................................................................................................ 14 Purpose ................................................................................................................................................... 14 Asteroid Redirect Mission Background ................................................................................................... 14 Study Request .......................................................................................................................................... 16 Membership ............................................................................................................................................ 16 FAST Responses to ARRM Project Questions .............................................................................................. 17 Origin of 2008 EV5 ................................................................................................................................... 18 Boulder Spatial and Size Distributions .................................................................................................... 21 Surface Geotechnical Properties ............................................................................................................. 30 Boulder Physical Properties ..................................................................................................................... 36 Post-Collection Boulder Handling ........................................................................................................... 45 Pre-ARCM Boulder Assessments for Crew Safety .................................................................................... 47 Containment Considerations ................................................................................................................... 48 Potential Investigations .............................................................................................................................. 51 Potential Investigation Descriptions ....................................................................................................... 52 Proposed Investigations Categorization Table ........................................................................................ 59 Summary of Public Inputs ........................................................................................................................... 64 Additional Findings ..................................................................................................................................... 72 Closing Remarks .......................................................................................................................................... 74 Appendices .................................................................................................................................................. 74 Appendix A1: Full Response on the Origin of 2008 EV5 ........................................................................... 74 Appendix A2: Phase Function Analysis .................................................................................................... 81 Appendix A3: Asteroid 2008 EV5 – spectral analysis ............................................................................... 85 Appendix A4: Disk-integrated Photometric Models of the ARM Mission Asteroid Target 2008 EV5 ...... 89 Appendix B1: Full
Recommended publications
  • Bolden Testimony
    HOLD FOR RELEASE UNTIL PRESENTED BY WITNESS November 17, 2011 Statement of The Honorable Charles F. Bolden, Jr. Administrator National Aeronautics and Space Administration before the Subcommittee on Science and Space Committee on Commerce, Science and Transportation U. S. Senate Mr. Chairman and Members of the Subcommittee, thank you for the opportunity to appear before you today to discuss the outlook for NASA’s human space flight program. This has been a remarkable year, as we have completed assembling and outfitting of the U.S. On-orbit Segment (USOS) of the International Space Station (ISS), allowing us to focus on full utilization of the Station’s research capabilities; taken key steps in moving forward into the future of exploration beyond Low-Earth Orbit (LEO); celebrated the 50 th anniversary of human spaceflight; and witnessed the successful conclusion of the historic Space Shuttle Program. We are also pleased with the progress our industry partners have made in developing an American capability to transport cargo and eventually astronauts to the ISS, and end the outsourcing of this work to foreign governments. More importantly, this will add a critical level of redundancy for transporting cargo and crew to the ISS. A robust transportation architecture is important to ensuring full utilization of this amazing research facility. Enabling commercial crew and cargo transportation systems in LEO allows NASA to focus on developing its own systems for sending astronauts on missions of exploration beyond LEO. This split between commercial and Government systems allows for a cost effective approach to promote a broad base for human exploration by the United States.
    [Show full text]
  • Color Study of Asteroid Families Within the MOVIS Catalog David Morate1,2, Javier Licandro1,2, Marcel Popescu1,2,3, and Julia De León1,2
    A&A 617, A72 (2018) Astronomy https://doi.org/10.1051/0004-6361/201832780 & © ESO 2018 Astrophysics Color study of asteroid families within the MOVIS catalog David Morate1,2, Javier Licandro1,2, Marcel Popescu1,2,3, and Julia de León1,2 1 Instituto de Astrofísica de Canarias (IAC), C/Vía Láctea s/n, 38205 La Laguna, Tenerife, Spain e-mail: [email protected] 2 Departamento de Astrofísica, Universidad de La Laguna, 38205 La Laguna, Tenerife, Spain 3 Astronomical Institute of the Romanian Academy, 5 Cu¸titulde Argint, 040557 Bucharest, Romania Received 6 February 2018 / Accepted 13 March 2018 ABSTRACT The aim of this work is to study the compositional diversity of asteroid families based on their near-infrared colors, using the data within the MOVIS catalog. As of 2017, this catalog presents data for 53 436 asteroids observed in at least two near-infrared filters (Y, J, H, or Ks). Among these asteroids, we find information for 6299 belonging to collisional families with both Y J and J Ks colors defined. The work presented here complements the data from SDSS and NEOWISE, and allows a detailed description− of− the overall composition of asteroid families. We derived a near-infrared parameter, the ML∗, that allows us to distinguish between four generic compositions: two different primitive groups (P1 and P2), a rocky population, and basaltic asteroids. We conducted statistical tests comparing the families in the MOVIS catalog with the theoretical distributions derived from our ML∗ in order to classify them according to the above-mentioned groups. We also studied the background populations in order to check how similar they are to their associated families.
    [Show full text]
  • Ice& Stone 2020
    Ice & Stone 2020 WEEK 51: DECEMBER 13-19 Presented by The Earthrise Institute # 51 Authored by Alan Hale COMET OF THE WEEK: The Great Comet of 1680 Perihelion: 1680 December 18.49, q = 0.006 AU The Great Comet of 1680 over Rotterdam in The Netherlands, during late December 1680 as painted by the Dutch artist Lieve Verschuier. This particular comet was undoubtedly one of the brightest comets of the 17th Century, but it is also one of the most important comets in history from a scientific perspective, and perhaps even from the perspective of overall human history. While there were certainly plenty of superstitions attached to the comet’s appearance, the scientific investigations made of it were among the beginnings of the era in European history we now call The Enlightenment, and indeed, in a sense the Great Comet of 1680 can perhaps be considered as one of the sparks of that era. The significance began with the comet’s discovery, which was made on the morning of November 14, 1680, by a German astronomer residing in Coburg, Gottfried Kirch – the first comet ever to be discovered by means of a telescope. It was already around 4th magnitude at that time, and located near the star Regulus in the constellation Leo; from that point it traveled eastward and brightened rapidly, being closest to Earth (0.42 AU) on November 30. By that time it was a conspicuous naked-eye object with a tail 20 to 30 degrees long, and it remained visible for another week before disappearing into morning twilight.
    [Show full text]
  • Espinsights the Global Space Activity Monitor
    ESPInsights The Global Space Activity Monitor Issue 2 May–June 2019 CONTENTS FOCUS ..................................................................................................................... 1 European industrial leadership at stake ............................................................................ 1 SPACE POLICY AND PROGRAMMES .................................................................................... 2 EUROPE ................................................................................................................. 2 9th EU-ESA Space Council .......................................................................................... 2 Europe’s Martian ambitions take shape ......................................................................... 2 ESA’s advancements on Planetary Defence Systems ........................................................... 2 ESA prepares for rescuing Humans on Moon .................................................................... 3 ESA’s private partnerships ......................................................................................... 3 ESA’s international cooperation with Japan .................................................................... 3 New EU Parliament, new EU European Space Policy? ......................................................... 3 France reflects on its competitiveness and defence posture in space ...................................... 3 Germany joins consortium to support a European reusable rocket.........................................
    [Show full text]
  • Deep Space Atomic Clock
    National Aeronautics and Space Administration Deep Space Atomic Clock tion and radio science. Here are some examples of how one-way deep-space tracking with DSAC can improve navigation and radio science that is not supported by current two-way tracking. Ground-based 1. Simultaneously track two spacecraft on a atomic clocks are downlink with the Deep Space Network (DSN) the cornerstone of at destinations such as Mars, and nearly dou- spacecraft navigation ble a space mission’s tracking data because it for most deep-space missions because of their use no longer has to “time-share” an antenna. in generating precision two-way tracking measure- ments. These typically include range (the distance 2. Improve tracking data precision by an order of between two objects) and Doppler (a measure of magnitude using the DSN’s Ka-band downlink the relative speed between them). A two-way link (a tracking capability. signal that originates and ends at the ground track- ing antenna) is required because today’s spacecraft 3. Mitigate Ka-band’s weather sensitivity (as clocks introduce too much error for the equivalent compared to two-way X-band) by being able one-way measurements to be useful. Ground atom- to switch from a weather-impacted receiving ic clocks, while providing extremely stable frequen- antenna to one in a different location with no cy and time references, are too large for hosting on tracking outages. a spacecraft and cannot survive the harshness of space. New technology is on the horizon that will 4. Track longer by using a ground antenna’s en- change this paradigm.
    [Show full text]
  • 1950 Da, 205, 269 1979 Va, 230 1991 Ry16, 183 1992 Kd, 61 1992
    Cambridge University Press 978-1-107-09684-4 — Asteroids Thomas H. Burbine Index More Information 356 Index 1950 DA, 205, 269 single scattering, 142, 143, 144, 145 1979 VA, 230 visual Bond, 7 1991 RY16, 183 visual geometric, 7, 27, 28, 163, 185, 189, 190, 1992 KD, 61 191, 192, 192, 253 1992 QB1, 233, 234 Alexandra, 59 1993 FW, 234 altitude, 49 1994 JR1, 239, 275 Alvarez, Luis, 258 1999 JU3, 61 Alvarez, Walter, 258 1999 RL95, 183 amino acid, 81 1999 RQ36, 61 ammonia, 223, 301 2000 DP107, 274, 304 amoeboid olivine aggregate, 83 2000 GD65, 205 Amor, 251 2001 QR322, 232 Amor group, 251 2003 EH1, 107 Anacostia, 179 2007 PA8, 207 Anand, Viswanathan, 62 2008 TC3, 264, 265 Angelina, 175 2010 JL88, 205 angrite, 87, 101, 110, 126, 168 2010 TK7, 231 Annefrank, 274, 275, 289 2011 QF99, 232 Antarctic Search for Meteorites (ANSMET), 71 2012 DA14, 108 Antarctica, 69–71 2012 VP113, 233, 244 aphelion, 30, 251 2013 TX68, 64 APL, 275, 292 2014 AA, 264, 265 Apohele group, 251 2014 RC, 205 Apollo, 179, 180, 251 Apollo group, 230, 251 absorption band, 135–6, 137–40, 145–50, Apollo mission, 129, 262, 299 163, 184 Apophis, 20, 269, 270 acapulcoite/ lodranite, 87, 90, 103, 110, 168, 285 Aquitania, 179 Achilles, 232 Arecibo Observatory, 206 achondrite, 84, 86, 116, 187 Aristarchus, 29 primitive, 84, 86, 103–4, 287 Asporina, 177 Adamcarolla, 62 asteroid chronology function, 262 Adeona family, 198 Asteroid Zoo, 54 Aeternitas, 177 Astraea, 53 Agnia family, 170, 198 Astronautica, 61 AKARI satellite, 192 Aten, 251 alabandite, 76, 101 Aten group, 251 Alauda family, 198 Atira, 251 albedo, 7, 21, 27, 185–6 Atira group, 251 Bond, 7, 8, 9, 28, 189 atmosphere, 1, 3, 8, 43, 66, 68, 265 geometric, 7 A- type, 163, 165, 167, 169, 170, 177–8, 192 356 © in this web service Cambridge University Press www.cambridge.org Cambridge University Press 978-1-107-09684-4 — Asteroids Thomas H.
    [Show full text]
  • Meteorite Flux to Earth in the Early Cretaceous As Reconstructed from Sediment-Dispersed Extraterrestrial Spinels
    Meteorite flux to Earth in the Early Cretaceous as reconstructed from sediment-dispersed extraterrestrial spinels Birger Schmitz1,2*, Philipp R. Heck2, Walter Alvarez3,4, Noriko T. Kita5, Surya S. Rout2, Anders Cronholm1, Céline Defouilloy5, Ellinor Martin1, Jan Smit4,6, and Fredrik Terfelt1 1Astrogeobiology Laboratory, Department of Physics, Lund University, SE-22100 Lund, Sweden 2Robert A. Pritzker Center for Meteoritics and Polar Studies, The Field Museum of Natural History, Chicago, Illinois 60605, USA 3Department of Earth and Planetary Science, University of California, Berkeley, California 94720, USA 4Osservatorio Geologico di Coldigioco, Contrada Coldigioco 4, 62021 Apiro, Italy 5WiscSIMS, Department of Geoscience, University of Wisconsin–Madison, Madison, Wisconsin 53706, USA 6Department of Sedimentary Geology, Vrije Universiteit, 1081 HV Amsterdam, Netherlands ABSTRACT to 470 ± 6 Ma (Korochantseva et al., 2007), but the most precise relative We show that Earth’s sedimentary strata can provide a record of date is given by an abrupt two-orders-of magnitude increase worldwide the collisional evolution of the asteroid belt. From 1652 kg of pelagic in sand-sized L-chondritic chromite grains in mid-Ordovician sediments Maiolica limestone of Berriasian–Hauterivian age from Italy, we (Schmitz et al., 2003; Heck et al., 2016). recovered 108 extraterrestrial spinel grains (32–250 μm) represent- By dissolving 100-kg-sized samples of condensed sediments from ing relict minerals from coarse micrometeorites. Elemental and three different time periods in various acids, the highly refractory extraterres- oxygen isotope analyses were used to characterize the grains, provid- trial spinel minerals can be concentrated. The recovered grains typically ing a first-order estimate of the major types of asteroids delivering contain high concentrations of solar-wind noble gases, indicating that material at the time.
    [Show full text]
  • SAMENA TRENDS Bocar A
    Volume 10, August, 2019 A SAMENA Telecommunications Council Publication www.samenacouncil.org S AMENA TRENDS FOR SAMENA TELECOMMUNICATIONS COUNCIL'S MEMBERS BUILDING DIGITAL ECONOMIES Tech Mahindra: The Rise of the DX-Organization ... 59 Loon: Overcoming the Infrastructure Challenge in Broadband ... 74 Featured Eng. Nezar Banbeela Chief Executive Officer VIVA Bahrain THIS MONTH MATERIALIZING THE DIGITAL AGENDA 7441_Et_Business Mobile App_SAMENA Magazine_A4.indd 1 5/21/19 1:36 PM VOLUME 10, AUGUST, 2019 Contributing Editors Knowledge Contributions Subscriptions Izhar Ahmad Alfa [email protected] SAMENA Javaid Akhtar Malik Huawei Loon Advertising TRENDS Syniverse [email protected] Tech Mahindra Editor-in-Chief SAMENA TRENDS Bocar A. BA Publisher [email protected] SAMENA Telecommunications Tel: +971.4.364.2700 Council CONTENTS 05 EDITORIAL FEATURED 10 REGIONAL & MEMBERS UPDATES Members News Regional News 62 SATELLITE UPDATES Satellite News 77 WHOLESALE UPDATES Wholesale News 83 TECHNOLOGY UPDATES The SAMENA TRENDS newsletter is wholly Technology News 06 Eng. Nezar Banabeela owned and operated by The SAMENA Chief Executive Officer Telecommunications Council (SAMENA 92 REGULATORY & POLICY UPDATES VIVA Bahrain Council). Information in the newsletter is not Regulatory News intended as professional services advice, and SAMENA Council disclaims any liability for A Snapshot of Regulatory use of specific information or results thereof. Activities in the SAMENA Region Articles and information contained in this publication
    [Show full text]
  • Asteroid Impacts
    “Then the fifth angel sounded: And I saw a star fallen from heaven to the Earth. To him was given the key to the bottomless pit.” Revelations 9:1 “And he opened the bottomless pit, and smoke arose out of the pit like the smoke of a great furnace. So the sun and the air were darkened because of the smoke of the pit.” Revelations 9:2 Asteroid Impacts A descriptive overview of past events, current ideas, and future consequences. Introduction Historically An interesting concept that was not seriously explored or studied. Present Hot topic of debate and concern due to recent studies. Future New Idea? We knew impacts were common to our nearest neighbor. Assumed that lack of atmosphere led to very little protection. Thus impacts were more frequent. New Information Space probes to other planets. Voyager Missions Saw impact craters on other bodies. Satellites around Earth. Noticed possible sites here. Mimas One of the moons around Saturn. Impact crater indicates that impact was just below the level needed to rip moon apart. Basis for the Death Star. Moons Only? Mercury Shows signs of significant impacting in past. But once again, Mercury lacks an atmosphere. Natural Protection Initially thought atmosphere good enough protection. Only few sites recognized around globe as impact sites. Meteor Crater in Arizona New Technology, New Sites Started to locate other sites due to new and improved technology. Shuttle view of spacestation over Manicouagan, Canada. Started looking for sites instead of just chance findings. What are we seeing? Did not realize a lot of sites on Earth were impact craters.
    [Show full text]
  • In-Situ Resource Utilization Experiment for the Asteroid Redirect Crewed Mission
    EPSC Abstracts Vol. 10, EPSC2015-75, 2015 European Planetary Science Congress 2015 EEuropeaPn PlanetarSy Science CCongress c Author(s) 2015 In-Situ Resource Utilization Experiment for the Asteroid Redirect Crewed Mission J. Elliott (1), M. Fries (2), S. Love (2), R.G. Sellar (1), G. Voecks (1), and D. Wilson (1). (1) Jet Propulsion Laboratory, California Institute of Technology ([email protected]); (2) Johnson Space Center, National Aeronautics and Space Administration. Abstract orders of magnitude less costly than current practice. Such an advance would remove or reduce the cost of The Asteroid Redirect Crewed Mission (ARCM) volatile transport as a significant barrier to human represents a unique opportunity to perform in-situ exploration of the Solar System. testing of concepts that could lead to full-scale exploitation of asteroids for their valuable resources [1]. This paper describes a concept for an astronaut- operated “suitcase” experiment to would demonstrate asteroid volatile extraction using a solar-heated oven and integral cold trap in a configuration scalable to full-size asteroids. Conversion of liberated water into H2 and O2 products would also be demonstrated through an integral processing and storage unit. The plan also includes development of a local prospecting system consisting of a suit-mounted multi-spectral imager to aid the crew in choosing optimal samples, both for In-Situ Resource Utilization (ISRU) and for potential return to Earth. Figure 1: Mirror concentrates sunlight uniformly 1. Introduction over sealed black sphere containing a sample (for the 1:75 subscale experiment) or an entire 10 m volatile- Use of asteroid-based resources represents a truly rich asteroid (for full-scale ISRU).
    [Show full text]
  • Writing Successful Proposals: OBSERVATIONS from NASA
    Writing Successful Proposals: OBSERVATIONS FROM NASA Dr. Thomas H. Zurbuchen Associate Administrator Science Mission Directorate @Dr_ThomasZ Context for Today's Talk • Only focused on Announcements of Opportunity, not ROSES selections • Large and increasing number of NASA science missions led by PIs • Proven high rates of mission success across science disciplines resulting from PI-class missions management methodology • Process of becoming a PI is complex and involves many stakeholders, with more than 80% of all submitted mission proposals failing at Step 1 • Will use historical data to discuss our view of process and philosophy, questioning how we can do better • Already changed proposal process and will without doubt, do it again • Note, some comments reflect views of the current NASA Science Associate Administrator and leadership team • Today’s talk is being webcast and recorded; all content will be made available on science.nasa.gov/researchers/new-pi-resources 2 Imagine Being a PI… • You receive a call from me informing you that your mission was selected for development • Your life changes in a heartbeat; you have already invested a significant fraction of at least two years with your project, and know strengths and weaknesses of your partners and team • You have survived two major down-selects; you have managed to raise support measured in millions of dollars and in work-years from your team • You know you have lots of autonomy, but you have lots of responsibility as well; you will represent your mission, NASA, and an entire science
    [Show full text]
  • The Minor Planet Bulletin
    THE MINOR PLANET BULLETIN OF THE MINOR PLANETS SECTION OF THE BULLETIN ASSOCIATION OF LUNAR AND PLANETARY OBSERVERS VOLUME 35, NUMBER 3, A.D. 2008 JULY-SEPTEMBER 95. ASTEROID LIGHTCURVE ANALYSIS AT SCT/ST-9E, or 0.35m SCT/STL-1001E. Depending on the THE PALMER DIVIDE OBSERVATORY: binning used, the scale for the images ranged from 1.2-2.5 DECEMBER 2007 – MARCH 2008 arcseconds/pixel. Exposure times were 90–240 s. Most observations were made with no filter. On occasion, e.g., when a Brian D. Warner nearly full moon was present, an R filter was used to decrease the Palmer Divide Observatory/Space Science Institute sky background noise. Guiding was used in almost all cases. 17995 Bakers Farm Rd., Colorado Springs, CO 80908 [email protected] All images were measured using MPO Canopus, which employs differential aperture photometry to determine the values used for (Received: 6 March) analysis. Period analysis was also done using MPO Canopus, which incorporates the Fourier analysis algorithm developed by Harris (1989). Lightcurves for 17 asteroids were obtained at the Palmer Divide Observatory from December 2007 to early The results are summarized in the table below, as are individual March 2008: 793 Arizona, 1092 Lilium, 2093 plots. The data and curves are presented without comment except Genichesk, 3086 Kalbaugh, 4859 Fraknoi, 5806 when warranted. Column 3 gives the full range of dates of Archieroy, 6296 Cleveland, 6310 Jankonke, 6384 observations; column 4 gives the number of data points used in the Kervin, (7283) 1989 TX15, 7560 Spudis, (7579) 1990 analysis. Column 5 gives the range of phase angles.
    [Show full text]