Deep Space 1 Asteroid Flyby
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Mars Reconnaissance Orbiter
Chapter 6 Mars Reconnaissance Orbiter Jim Taylor, Dennis K. Lee, and Shervin Shambayati 6.1 Mission Overview The Mars Reconnaissance Orbiter (MRO) [1, 2] has a suite of instruments making observations at Mars, and it provides data-relay services for Mars landers and rovers. MRO was launched on August 12, 2005. The orbiter successfully went into orbit around Mars on March 10, 2006 and began reducing its orbit altitude and circularizing the orbit in preparation for the science mission. The orbit changing was accomplished through a process called aerobraking, in preparation for the “science mission” starting in November 2006, followed by the “relay mission” starting in November 2008. MRO participated in the Mars Science Laboratory touchdown and surface mission that began in August 2012 (Chapter 7). MRO communications has operated in three different frequency bands: 1) Most telecom in both directions has been with the Deep Space Network (DSN) at X-band (~8 GHz), and this band will continue to provide operational commanding, telemetry transmission, and radiometric tracking. 2) During cruise, the functional characteristics of a separate Ka-band (~32 GHz) downlink system were verified in preparation for an operational demonstration during orbit operations. After a Ka-band hardware anomaly in cruise, the project has elected not to initiate the originally planned operational demonstration (with yet-to-be used redundant Ka-band hardware). 201 202 Chapter 6 3) A new-generation ultra-high frequency (UHF) (~400 MHz) system was verified with the Mars Exploration Rovers in preparation for the successful relay communications with the Phoenix lander in 2008 and the later Mars Science Laboratory relay operations. -
Primitive Bodies Panel Planetary Science Decadal Survey Space Studies Board National Research Council
Space Studies Board Mailing Address: 500 Fifth Street, NW Washington, DC 20001 www.nationalacademies.org Primitive Bodies Panel Planetary Science Decadal Survey Space Studies Board National Research Council National Academy of Sciences Building 2101 Constitution Ave. NW, Washington, D.C. (Entrance at 2100 C Street NW) Conference Room 150 FINAL AGENDA1 September 9-11, 2009 Wednesday, September 9, 2009 CLOSED SESSION 7:30 a.m. Room Opens (Breakfast available in the meeting room) 8:30 a.m. Welcome and Agenda Review Joseph Veverka 8:45 a.m. Overview of NRC Study Process Dwayne Day 9:15 a.m. Balance and Composition Discussion Dwayne Day 10:00 a.m. Break OPEN SESSION2 10:15 a.m. Decadal Survey Overview Steven Squyres Cornell University 11:00 a.m. Lessons Learned from the 2003 Decadal Survey Dale Cruikshank NASA Ames Research Center 11:45 a.m. Committee Discussion (Lunch will be served in the meeting room, committee discussion will continue) 12:45 p.m. Charge to the Decadal Survey James Green/Lindley Johnson NASA Headquarters 1 Updated September 8, 2009 2 Webcast at http://nasa-nai.acrobat.com/primitive1/, Audio at 866-606-4717, Access Code 6686308. This meeting is being held to gather information to help the committee conduct its activities. The committee will examine the information and material obtained during open sessions in an effort to inform its work. Although opinions may be stated and lively discussion may ensue, no conclusions are being drawn at this time. Therefore, observers who draw conclusions about the committee's work based on today's discussions will be doing so prematurely. -
Stardust Comet Flyby
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION Stardust Comet Flyby Press Kit January 2004 Contacts Don Savage Policy/Program Management 202/358-1727 NASA Headquarters, Washington DC Agle Stardust Mission 818/393-9011 Jet Propulsion Laboratory, Pasadena, Calif. Vince Stricherz Science Investigation 206/543-2580 University of Washington, Seattle, WA Contents General Release ……………………………………......………….......................…...…… 3 Media Services Information ……………………….................…………….................……. 5 Quick Facts …………………………………………..................………....…........…....….. 6 Why Stardust?..................…………………………..................………….....………......... 7 Other Comet Missions ....................................................................................... 10 NASA's Discovery Program ............................................................................... 12 Mission Overview …………………………………….................……….....……........…… 15 Spacecraft ………………………………………………..................…..……........……… 25 Science Objectives …………………………………..................……………...…........….. 34 Program/Project Management …………………………...................…..…..………...... 37 1 2 GENERAL RELEASE: NASA COMET HUNTER CLOSING ON QUARRY Having trekked 3.2 billion kilometers (2 billion miles) across cold, radiation-charged and interstellar-dust-swept space in just under five years, NASA's Stardust spacecraft is closing in on the main target of its mission -- a comet flyby. "As the saying goes, 'We are good to go,'" said project manager Tom Duxbury at NASA's Jet -
Deep Impact As a World Observatory Event Held in Brussels, Belgium, 7–10 August 2006
Other Astronomical News Report on the Workshop on Deep Impact as a World Observatory Event held in Brussels, Belgium, 7–10 August 2006 Hans Ulrich Käufl1 One of the spectacular deconvolved images from the Christiaan Sterken2 Deep Impact Spacecraft High Resolution Imager shown in the conference (courtesy Mike A’Hearn and the Deep Impact Team). This is a colour composite of an infrared, a green and a violet filter forced to av- 1 ESO erage grey. Note the blueish areas on the surface 2 Vrije Universiteit Brussel, Belgium close to the crater-like structure. Those were entirely unexpected. It is highly interesting to find out if those structures can be correlated with the jets which were meticulously monitored from ground-based ob- In the context of NASA’s Deep Impact servers worldwide. This aspect in the picture – en- space mission, Comet 9P/Tempel1 tirely unrelated to the impact plume – illustrates very well how comet research, apart from the impact has been at the focus of an unprece- experiment, will profit from the synergy of spacecraft dented worldwide long-term multi- data and the unprecedented worldwide coordinated wavelength observation campaign. The observing campaign. comet has been studied through its perihelion passage by various spacecraft including the Deep Impact mission it- self, HST, Spitzer, Rosetta, XMM and all To make full use of the global data set, a To inspire new ideas, it was very helpful major ground-based observatories in workshop bringing together observers and interesting to have Roberta Olson basically all wavelength bands used in across the electromagnetic spectrum and from the New York Historical Society, astronomy, i.e. -
The Planetary Report
A Publication of THEPLANETA SOCIETY o o o • o -e o o Board of Directors CARL SAGAN NORMAN R. AUGUSTI NE President Chairman and CEO, Director, Martin Marietta Corporation Laboratory for Planetary Studies, Cornelf University JOHN E. BRYSON Chairman and CEO, BRUCE MURRAY Southern California Edison Vice President Professor of Planetary Science, JOSEPH RYAN California Institute of Technology O'Melveny & Myers LOU IS FRIEDMAN STEVEN SPI ELBERG A WARNING FROM YOUR EDITOR Bringing People Together Through Executive Director director and producer You may soon be getting a phone call Planetary Science-Page 13-Education Board of Advisors from me. No, I won't be asking you for has always been close to the hearts of DIANE ACKERMAN JOHN M. LOGSDON donations or nagging you about a missed Planetary Society members, and we have poet and author Director, Space Policy Institute, George Washington University deadline (a common fear among planetary sponsored many programs to promote sci BUZZ ALDRIN Apollo 11 astronaut HANS MARK scientists). Instead, I will be asking for ence education around the world. We've The University of Texas at Austin RICHARD BERENDZEN your opinion about The Planetary Report. gathered together reports on three projects educator and astrophysicist JAMES MICHENER author JACQUES BLAMONT Each month our computer will randomly now completed and one just beginning. Chief Scientist, Centre MARVIN MINSKY Nationa! d'Etudes Spatia/es, Toshiba Professor of Media Arts select several members whom I will call to A Planetary Readers' Service-Page 16- France and Sciences, Massachusetts Institute of Technology discuss the contents of our latest issue-or For most of its history, the science we call RAY BRADBURY poet and author PHILIP MORRISON any other topic related to our publications. -
Size of Particles Ejected from an Artificial Impact Crater on Asteroid
A&A 647, A43 (2021) Astronomy https://doi.org/10.1051/0004-6361/202039777 & © K. Wada et al. 2021 Astrophysics Size of particles ejected from an artificial impact crater on asteroid 162173 Ryugu K. Wada1, K. Ishibashi1, H. Kimura1, M. Arakawa2, H. Sawada3, K. Ogawa2,4, K. Shirai2, R. Honda5, Y. Iijima3, T. Kadono6, N. Sakatani7, Y. Mimasu3, T. Toda3, Y. Shimaki3, S. Nakazawa3, H. Hayakawa3, T. Saiki3, Y. Takagi8, H. Imamura3, C. Okamoto2, M. Hayakawa3, N. Hirata9, and H. Yano3 1 Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan e-mail: [email protected] 2 Department of Planetology, Kobe University, Kobe 657-8501, Japan 3 Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan 4 JAXA Space Exploration Center, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan 5 Department of Science and Technology, Kochi University, Kochi 780-8520, Japan 6 Department of Basic Sciences, University of Occupational and Environmental Health, Kitakyusyu 807-8555, Japan 7 Department of Physics, Rikkyo University, Tokyo 171-8501, Japan 8 Aichi Toho University, Nagoya 465-8515, Japan 9 School of Computer Science and Engineering, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan Received 28 October 2020 / Accepted 26 January 2021 ABSTRACT A projectile accelerated by the Hayabusa2 Small Carry-on Impactor successfully produced an artificial impact crater with a final apparent diameter of 14:5 0:8 m on the surface of the near-Earth asteroid 162173 Ryugu on April 5, 2019. At the time of cratering, Deployable Camera 3 took± clear time-lapse images of the ejecta curtain, an assemblage of ejected particles forming a curtain-like structure emerging from the crater. -
+ New Horizons
Media Contacts NASA Headquarters Policy/Program Management Dwayne Brown New Horizons Nuclear Safety (202) 358-1726 [email protected] The Johns Hopkins University Mission Management Applied Physics Laboratory Spacecraft Operations Michael Buckley (240) 228-7536 or (443) 778-7536 [email protected] Southwest Research Institute Principal Investigator Institution Maria Martinez (210) 522-3305 [email protected] NASA Kennedy Space Center Launch Operations George Diller (321) 867-2468 [email protected] Lockheed Martin Space Systems Launch Vehicle Julie Andrews (321) 853-1567 [email protected] International Launch Services Launch Vehicle Fran Slimmer (571) 633-7462 [email protected] NEW HORIZONS Table of Contents Media Services Information ................................................................................................ 2 Quick Facts .............................................................................................................................. 3 Pluto at a Glance ...................................................................................................................... 5 Why Pluto and the Kuiper Belt? The Science of New Horizons ............................... 7 NASA’s New Frontiers Program ........................................................................................14 The Spacecraft ........................................................................................................................15 Science Payload ...............................................................................................................16 -
A Ballistics Analysis of the Deep Impact Ejecta Plume: Determining Comet Tempel 1’S Gravity, Mass, and Density
Icarus 190 (2007) 357–390 www.elsevier.com/locate/icarus A ballistics analysis of the Deep Impact ejecta plume: Determining Comet Tempel 1’s gravity, mass, and density James E. Richardson a,∗,H.JayMeloshb, Carey M. Lisse c, Brian Carcich d a Center for Radiophysics and Space Research, Cornell University, Ithaca, NY 14853, USA b Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721-0092, USA c Planetary Exploration Group, Space Department, Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD 20723, USA d Center for Radiophysics and Space Research, Cornell University, Ithaca, NY 14853, USA Received 31 March 2006; revised 8 August 2007 Available online 15 August 2007 Abstract − In July of 2005, the Deep Impact mission collided a 366 kg impactor with the nucleus of Comet 9P/Tempel 1, at a closing speed of 10.2 km s 1. In this work, we develop a first-order, three-dimensional, forward model of the ejecta plume behavior resulting from this cratering event, and then adjust the model parameters to match the flyby-spacecraft observations of the actual ejecta plume, image by image. This modeling exercise indicates Deep Impact to have been a reasonably “well-behaved” oblique impact, in which the impactor–spacecraft apparently struck a small, westward-facing slope of roughly 1/3–1/2 the size of the final crater produced (determined from initial ejecta plume geometry), and possessing an effective strength of not more than Y¯ = 1–10 kPa. The resulting ejecta plume followed well-established scaling relationships for cratering in a medium-to-high porosity target, consistent with a transient crater of not more than 85–140 m diameter, formed in not more than 250–550 s, for the case of Y¯ = 0 Pa (gravity-dominated cratering); and not less than 22–26 m diameter, formed in not less than 1–3 s, for the case of Y¯ = 10 kPa (strength-dominated cratering). -
Giant Planet / Kuiper Belt Flyby
Giant Planet / Kuiper Belt Flyby Amanda Zangari (SwRI) Tiffany Finley (SwRI) with Cecilia Leung (LPL/SwRI) Simon Porter (SwRI) OPAG: February 23, 2017 Take Away • New Horizons provided scientifically valuable exploration of the Kuiper Belt in the New Frontiers cost cap. • The Kuiper Belt is full of objects with a diverse range of stories that go beyond what we learned from Pluto. • Giant Planet flybys add scientific value to a Kuiper Belt mission • Found preliminary trajectory examples for high interest KBOs-- Haumea, Varuna, 2015 RR245 can be reached via Jupiter AND Saturn, Uranus or Neptune flyby in the 2030s. • To be a candidate New Frontiers mission, a 2 Giant planet+KBO mission must be endorsed by a decadal survey according to current rules. New Horizons Heritage NH Jupiter Encounter planned around Pluto flyby timing, which was dominated by achieving quadruple occultations, “interesting” side up. New Horizons Heritage Pluto flyby took advantage of Ecliptic crossing, enabling access to the cold classical belt (where 2014 MU69 is located). New Horizons Heritage 2014 MU69 discovered while in flight. Targeting was from spacecraft propulsion and took advantage of cold classical population density. Object is small, reddish ~40 km diameter. Saturn’s moons show incredible diversity NASA/JPL As do Uranus and Neptune Some Kuiper Belt Geography Where do we want to go? Getting there- JGA “anytime” New Horizons model: Fast Launch, Jupiter Flyby, Launch window every 11 years McGranaghan et al 2011 Can we go to more than just Jupiter? If so, where, what? New Horizons 2 • 2008 launch using New Horizons flight spares • Proposed Jupiter flyby, equinox flyby of Uranus, and flyby of (47171) 1999 TC36 (now know to be trinary). -
NASA's MESSENGER Sends Flyby Data to Earth Using
Press Release For immediate release Special Delivery: NASA’s MESSENGER Sends Flyby Data to Earth Using CCSDS File Delivery Protocol Developed for Deep Space by International Team WASHINGTON, Aug. 10 (CCSDS) – NASA’s MESSENGER team is using the CCSDS File Delivery Protocol (CFDP), a highly specialized protocol designed to overcome space operations communications challenges, to download data captured during a successful flyby of Earth last week. A team of international space data communications experts, collaborating through the Consultative Committee for Space Data Systems (CCSDS), developed CFDP to reliably and efficiently downlink files from a spacecraft even in the strenuous environment of deep space. Since the MESSENGER spacecraft’s launch a year ago, it has successfully used CFDP to enable mission communications and will use it throughout its 7.9-billion kilometer journey to Mercury. In using CFDP, MESSENGER communications represents a change in the standard method of storing science and housekeeping data on spacecraft built by the Johns Hopkins University Applied Physics Laboratory (JHU/APL). MESSENGER is also the first U.S. space flight mission to use CFDP in mission operations. Prior to MESSENGER, JHU/APL missions used a raw storage model of storing data, but new mission and operational requirements meant that MESSENGER would have to incorporate a file system of data storage into its spacecraft software architecture. A reliable method of downlinking files to the ground had to be found and CFDP was chosen by mission planners to do the job. CFDP is included in the MESSENGER software architecture through a reuse of a NASA Jet Propulsion Lab (NASA JPL) implementation on the ground and a JHU/APL “CFDP-lite” implementation on the flight side. -
Space Sector Brochure
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Stardust Sample Return
National Aeronautics and Space Administration Stardust Sample Return Press Kit January 2006 www.nasa.gov Contacts Merrilee Fellows Policy/Program Management (818) 393-0754 NASA Headquarters, Washington DC Agle Stardust Mission (818) 393-9011 Jet Propulsion Laboratory, Pasadena, Calif. Vince Stricherz Science Investigation (206) 543-2580 University of Washington, Seattle, Wash. Contents General Release ............................................................................................................... 3 Media Services Information ……………………….................…………….................……. 5 Quick Facts …………………………………………..................………....…........…....….. 6 Mission Overview …………………………………….................……….....……............…… 7 Recovery Timeline ................................................................................................ 18 Spacecraft ………………………………………………..................…..……...........……… 20 Science Objectives …………………………………..................……………...…..........….. 28 Why Stardust?..................…………………………..................………….....………............... 31 Other Comet Missions .......................................................................................... 33 NASA's Discovery Program .................................................................................. 36 Program/Project Management …………………………........................…..…..………...... 40 1 2 GENERAL RELEASE: NASA PREPARES FOR RETURN OF INTERSTELLAR CARGO NASA’s Stardust mission is nearing Earth after a 2.88 billion mile round-trip journey