Radar Speckles and Near-Earth Asteroids Michael Busch (with thanks to Jean-Luc Margot, Lance Benner, Walter Brisken, and Adam Deller)

Slides:

Advertisements

Similar presentations

NEO 4179 Toutatis Safe again!!! Toutatis - NEO A mountain-sized asteroid will make its closest approach to Earth at 6:35 a.m. Pacific Time (9:35.

Advertisements

Ben Barsdell Matthew Bailes Christopher Fluke David Barnes.

Mercury’s Molten Core how do we know… and what does it mean? Lindsay Johannessen PTYS 395 All images courtesy of NASA/JPL and Science Magazine.

In-situ Radar for Asteroid Characterization and Altimetry

NEA Follow-up Characterization Needs and Issues: Radar and Optical Lance Benner Jet Propulsion Laboratory California Institute of Technology.

A Measurement of Titan´s Zonal Winds by the Huygens Doppler Wind Experiment: Michael Bird (Radiostronomisches Institut, Universität Bonn) And the DWE Team.

Our galaxy's double halo Department of Physics National Tsing Hua University G.T. Chen 2007/12/20 December.

EP 8.2: DPG, Berlin - March 7, 2005 The Huygens Doppler Wind Experiment: Initial Results Michael Bird (Radiostronomisches Institut, Universität Bonn) And.

Pulsar population overview Dunc Lorimer (WVU) November 2, 2006 The observed sample Spin frequencies > 10 Hz - normal pulsars - recycled objects Current/future.

The Huygens Doppler Wind Experiment: Results from Titan Michael Bird (Radiostronomisches Institut, Universität Bonn) And the DWE Team EGU Vienna - April.

The Strongly Relativistic Double Pulsar and LISA Vicky Kalogera Physics & Astronomy Dept with Chunglee Kim (NU) Duncan Lorimer (Manchester)

Arecibo and Goldstone Radar Imaging of Contact Binary Near-Earth Asteroids L. A. M. Benner, M. C. Nolan, J. L. Margot, S. J. Ostro, M. K. Shepard, C. Magri,

Trends in characteristics of small NEA and MBA binaries Petr Pravec Astronomical Institute AS CR, Czech Republic Workshop on Binaries in the Solar System.

DiFX: Software Correlation at Swinburne for the LBA Adam Deller Swinburne University/CSIRO Australia Telescope National Facility Supervisors: A/Prof Steven.

LBA Calibrator Survey Chris Phillips eVLBI Project Scientist 23 July 2009.

CHARA Collaboration Year-Five Science Review. The Separated Fringe Packet Survey Chris Farrington CHARA / Mt. Wilson March 2009 Collaborators: T.A ten.

Nick Moskovitz Lowell Observatory Nick Moskovitz Lowell Observatory Workshop on Potentially Hazardous Asteroids: Characterization, Atmospheric Entry and.

Atacama Large Millimeter/submillimeter Array Expanded Very Large Array Robert C. Byrd Green Bank Telescope Very Long Baseline Array The VLBA Sensitivity.

Radio Astronomy ASTR 3010 Lecture 25. Intro to Radio Astronomy Concepts - Amplifiers - Mixers (down-conversion) - Principles of Radar - Radio Astronomy.

Atacama Large Millimeter/submillimeter Array Expanded Very Large Array Robert C. Byrd Green Bank Telescope Very Long Baseline Array New VLBA capabilities.

Atacama Large Millimeter/submillimeter Array Expanded Very Large Array Robert C. Byrd Green Bank Telescope Very Long Baseline Array The VLBA Sensitivity.

Imaging Compact Supermassive Binary Black Holes with VLBI G. B. Taylor (UNM), C. Rodriguez (UNM), R. T. Zavala (USNO) A. B. Peck (CfA), L. K. Pollack (UCSC),

Atacama Large Millimeter/submillimeter Array Expanded Very Large Array Robert C. Byrd Green Bank Telescope Very Long Baseline Array Software correlators.

Eleventh Synthesis Imaging Workshop Socorro, June 10-17, 2008 THE VLBA SENSITIVITY UPGRADE Craig Walker, NRAO.

1 Radio Astronomy and the NRAO Phil Jewell Assistant Director for Green Bank Operations National Radio Astronomy Observatory VIP Visit to Green Bank 8.

(65803) Didymos What we know about it. Petr Pravec and Petr Scheirich Astronomical Institute AS CR, Ondřejov Observatory IAU General Assembly Hawai’i 2015.

Moscow presentation, Sept, 2007 L. Kogan National Radio Astronomy Observatory, Socorro, NM, USA EVLA, ALMA –the most important NRAO projects.

Broadband Photometry of 2003 KU2: A Potentially Hazardous Near- Earth Asteroid David M Dombroski – Los Angeles City College Mentor: Dr. Michael Hicks -

Summary of Issues Relating to the Orbits of Near-Earth Objects  Don Yeomans and Jon Giorgini (NASA NEO Program Office)  September 2007 Potentially hazardous.

Planetary Radar Imaging of Binary Asteroids Michael C. Nolan, Ellen S. Howell, (Arecibo Observatory), Lance A. M. Benner, Steven J. Ostro, Jon D. Giorgini.

Asymmetric Planetary Nebulae IV La Palma, Canary Islands Water Fountains in Pre-Planetary Nebulae Mark Claussen NRAO June 19, 2007 Hancock, New Hampshire.

Large Area Surveys - I Large area surveys can answer fundamental questions about the distribution of gas in galaxy clusters, how gas cycles in and out.

University of Saskatchewan PHYSICS AND ENGINEERING PHYSICS Spectral widths of F-region PolarDARN echoes, a statistical assessment A.V. Koustov, S. Toderian.

Yuki D. Takahashi University of California, Berkeley 2002 / 9

The DiFX software correlator DiFX is an FX style correlator written in C++ Designed to run on commodity clusters Optimised Intel vector libraries are used.

VLBI: The telescope the size of the planet

Scattering and Scintillation in Radio Astronomy 1 The dual-frequency calibration of ionosphere influence in VLBA data processing Andrey Chuprikov.

GBT Future Instrumentation Workshop Fixing the frequency coverage hole in C-Band Jagadheep D. Pandian Cornell University.

03/6/121 Using the VLBA for Spacecraft Navigation Jonathan Romney National Radio Astronomy Observatory VLBA 10 th Anniversary 2003 June 9 – 12.

Goldstone Radar Support for LCROSS Evaluation of Impact Sites Martin Slade October 16, 2006 National Aeronautics and Space Administration Jet Propulsion.

E. Momjian, T. Ghosh, C. Salter, & A. Venkataraman (NAIC-Arecibo Observatory) eVLBI with the 305 m Arecibo Radio Telescope ABSTRACT Using the newly acquired.

Ground-Based Observations of NEO Encounters: 1998 QE2 and 2012 DA14 Ground-Based Observations of NEO Encounters: 1998 QE2 and 2012 DA14 Nick Moskovitz.

Space-VLBI Multi-frequency Capabilities A. G. Rudnitskiy, S. F. Likhachev, V. I. Kostenko A. S. Andrianov, I. A. Girin Astro Space Center of Lebedev Physical.

Astrochemistry with the Upgraded Combined Array for Research in Millimeter-wave Astronomy D. N. Friedel Department of Astronomy University of Illinois.

Single Dish Summer School, Green Bank 2007 Things to do with Single Dish: VLBI Tapasi Ghosh NAIC/Arecibo Observatory Outline: Interferometry Basic.

Atacama Large Millimeter/submillimeter Array Expanded Very Large Array Robert C. Byrd Green Bank Telescope Very Long Baseline Array The Very Long Baseline.

VIRTUAL OBSERVATORIES of the FUTURE June 2000 Caltech Solar System Surveys Steven H. Pravdo Jet Propulsion Laboratory.

1 Planetary Radar Basics 4 th NAIC/NRAO School on Single-Dish Radio Astronomy July 2007, Green Bank, WV Greg Black (Univ. of Virginia)

2007 / 5 / 141 VLBA Requirements, Plans & Status Jon Romney NRAO, Socorro Second US VLBI Technical Coordination Meeting Socorro 2007 / 5 / 14.

Astronomical Institute AS CR, Ondřejov Observatory, Czech Republic

Meteor head echo climatology at Northern polar latitudes

Planning Spectral Observations

“Astrometry through beer goggles” Adam Deller Swinburne University

Doppler Radar Basics Pulsed radar

Katie Keating Pablo Torne Doug Vakoch Ellen Howell Michael Nolan

RADAR INVESTIGATION OF NEAR-EARTH ASTEROIDS Steve Ostro JPL/Caltech

Molecular Line Surveys

GBT Status: Current Observing Capabilities

Wide-field, high sensitivity VLBI

RADAR INVESTIGATION OF NEAR-EARTH ASTEROIDS Steve Ostro JPL/Caltech

Petr Pravec and Petr Scheirich

Technical Considerations on VLBI Astrometry with FAST Zhihan Qian（钱志瀚） and Bo Zhang（张波） Shanghai Astronomical Observatory, CAS Outline Existing VLBI.

For HIV, It's Never Too Late to Grow Up

Mean fasting C-peptide levels (for all subjects [A]) and mean peak C-peptide levels (all subjects [B], adolescents [C], and adults [D])after mixed-meal.

1999 KW4 Observing Campaign Status

Asteroid Research projects in the Age of Wide-field Surveys

Pole Position Student Points Time

Molecular Imager: Focal Plane Array

Presentation transcript:

Radar Speckles and Near-Earth Asteroids Michael Busch (with thanks to Jean-Luc Margot, Lance Benner, Walter Brisken, and Adam Deller)

Radar Speckle Patterns Target D target d Separation Baseline (B) Earth and Antennas L Speckle = D target /d

Radar Speckle Patterns Kholin 1988, Margot et al B L Speckle Antenna 1 Antenna 2 Speckle Motion Antenna 1 Antenna 2 Time Echo Power Projected spin vector Bcos(  ) << L Speckle

Software Correlation 2008 EV5 GBT Autocorrelation DiFX with 12 Hz Frequency Resolution

2008 EV5 Discovered in 2008 by the Mt. Lemmon Survey. Spectral Type C (Hicks) or X (Reddy). Arecibo, Goldstone, and VLBA observations during December EV5 is being considered as a possible target for a human asteroid mission (Landau et al. 2010)

Kitt Peak - Pie Town baseline was ~10º from the projected pole direction, Los Alamos - Fort Davis was too long.

EV5’s Shape

Project Status 2003 UV11 in late October Upcoming Targets: – 2005 YU55 – Toutatis – New Discoveries