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Dust Environment and Dynamical History of a Sample of Short-Period Comets II
A&A 571, A64 (2014) Astronomy DOI: 10.1051/0004-6361/201424331 & c ESO 2014 Astrophysics Dust environment and dynamical history of a sample of short-period comets II. 81P/Wild 2 and 103P/Hartley 2 F. J. Pozuelos1;3, F. Moreno1, F. Aceituno1, V. Casanova1, A. Sota1, J. J. López-Moreno1, J. Castellano2, E. Reina2, A. Climent2, A. Fernández2, A. San Segundo2, B. Häusler2, C. González2, D. Rodriguez2, E. Bryssinck2, E. Cortés2, F. A. Rodriguez2, F. Baldris2, F. García2, F. Gómez2, F. Limón2, F. Tifner2, G. Muler2, I. Almendros2, J. A. de los Reyes2, J. A. Henríquez2, J. A. Moreno2, J. Báez2, J. Bel2, J. Camarasa2, J. Curto2, J. F. Hernández2, J. J. González2, J. J. Martín2, J. L. Salto2, J. Lopesino2, J. M. Bosch2, J. M. Ruiz2, J. R. Vidal2, J. Ruiz2, J. Sánchez2, J. Temprano2, J. M. Aymamí2, L. Lahuerta2, L. Montoro2, M. Campas2, M. A. García2, O. Canales2, R. Benavides2, R. Dymock2, R. García2, R. Ligustri2, R. Naves2, S. Lahuerta2, and S. Pastor2 1 Instituto de Astrofísica de Andalucía (CSIC), Glorieta de la Astronomía s/n, 18008 Granada, Spain e-mail: [email protected] 2 Amateur Association Cometas-Obs, Spain 3 Universidad de Granada-Phd Program in Physics and Mathematics (FisyMat), 18071 Granada, Spain Received 3 June 2014 / Accepted 5 August 2014 ABSTRACT Aims. This paper is a continuation of the first paper in this series, where we presented an extended study of the dust environment of a sample of short-period comets and their dynamical history. On this occasion, we focus on comets 81P/Wild 2 and 103P/Hartley 2, which are of special interest as targets of the spacecraft missions Stardust and EPOXI. -
Jjmonl 1712.Pmd
alactic Observer John J. McCarthy Observatory G Volume 10, No. 12 December 2017 Holiday Theme Park See page 19 for more information The John J. McCarthy Observatory Galactic Observer New Milford High School Editorial Committee 388 Danbury Road Managing Editor New Milford, CT 06776 Bill Cloutier Phone/Voice: (860) 210-4117 Production & Design Phone/Fax: (860) 354-1595 www.mccarthyobservatory.org Allan Ostergren Website Development JJMO Staff Marc Polansky Technical Support It is through their efforts that the McCarthy Observatory Bob Lambert has established itself as a significant educational and recreational resource within the western Connecticut Dr. Parker Moreland community. Steve Barone Jim Johnstone Colin Campbell Carly KleinStern Dennis Cartolano Bob Lambert Route Mike Chiarella Roger Moore Jeff Chodak Parker Moreland, PhD Bill Cloutier Allan Ostergren Doug Delisle Marc Polansky Cecilia Detrich Joe Privitera Dirk Feather Monty Robson Randy Fender Don Ross Louise Gagnon Gene Schilling John Gebauer Katie Shusdock Elaine Green Paul Woodell Tina Hartzell Amy Ziffer In This Issue "OUT THE WINDOW ON YOUR LEFT"............................... 3 REFERENCES ON DISTANCES ................................................ 18 SINUS IRIDUM ................................................................ 4 INTERNATIONAL SPACE STATION/IRIDIUM SATELLITES ............. 18 EXTRAGALACTIC COSMIC RAYS ........................................ 5 SOLAR ACTIVITY ............................................................... 18 EQUATORIAL ICE ON MARS? ........................................... -
List of Missions Using SPICE (PDF)
1/7/20 Data Restorations Selected Past Users Current/Pending Users Examples of Possible Future Users Apollo 15, 16 [L] Magellan [L] Cassini Orbiter NASA Discovery Program Mariner 2 [L] Clementine (NRL) Mars Odyssey NASA New Frontiers Program Mariner 9 [L] Mars 96 (RSA) Mars Exploration Rover Lunar IceCube (Moorehead State) Mariner 10 [L] Mars Pathfinder Mars Reconnaissance Orbiter LunaH-Map (Arizona State) Viking Orbiters [L] NEAR Mars Science Laboratory Luna-Glob (RSA) Viking Landers [L] Deep Space 1 Juno Aditya-L1 (ISRO) Pioneer 10/11/12 [L] Galileo MAVEN Examples of Users not Requesting NAIF Help Haley armada [L] Genesis SMAP (Earth Science) GOLD (LASP, UCF) (Earth Science) [L] Phobos 2 [L] (RSA) Deep Impact OSIRIS REx Hera (ESA) Ulysses [L] Huygens Probe (ESA) [L] InSight ExoMars RSP (ESA, RSA) Voyagers [L] Stardust/NExT Mars 2020 Emmirates Mars Mission (UAE via LASP) Lunar Orbiter [L] Mars Global Surveyor Europa Clipper Hayabusa-2 (JAXA) Helios 1,2 [L] Phoenix NISAR (NASA and ISRO) Proba-3 (ESA) EPOXI Psyche Parker Solar Probe GRAIL Lucy EUMETSAT GEO satellites [L] DAWN Lunar Reconnaissance Orbiter MOM (ISRO) Messenger Mars Express (ESA) Chandrayan-2 (ISRO) Phobos Sample Return (RSA) ExoMars 2016 (ESA, RSA) Solar Orbiter (ESA) Venus Express (ESA) Akatsuki (JAXA) STEREO [L] Rosetta (ESA) Korean Pathfinder Lunar Orbiter (KARI) Spitzer Space Telescope [L] [L] = limited use Chandrayaan-1 (ISRO) New Horizons Kepler [L] [S] = special services Hayabusa (JAXA) JUICE (ESA) Hubble Space Telescope [S][L] Kaguya (JAXA) Bepicolombo (ESA, JAXA) James Webb Space Telescope [S][L] LADEE Altius (Belgian earth science satellite) ISO [S] (ESA) Armadillo (CubeSat, by UT at Austin) Last updated: 1/7/20 Smart-1 (ESA) Deep Space Network Spectrum-RG (RSA) NAIF has or had project-supplied funding to support mission operations, consultation for flight team members, and SPICE data archive preparation. -
EPOXI COMET ENCOUNTER FACT SHEET Nov
EPOXI COMET ENCOUNTER FACT SHEET Nov. 2, 2010 Quick Facts Flyby Spacecraft Dimensions: 3.3 meters (10.8 feet) long, 1.7 meters (5.6 feet) wide, and 2.3 meters (7.5 feet) high Weight: 601 kilograms (1,325 pounds) at launch, consisting of 517 kilograms (1,140 pounds) spacecraft and 84 kilograms (185 pounds) fuel. On 10/25/10 there was 4 kilograms (8.8 pounds) of fuel remaining. Power: 2.8-meter-by-2.8-meter (9-foot-by-9 foot) solar panel providing up to 750 watts, depending on distance from sun. Power storage via small, 16-amp- hourrechargeable nickel hydrogen battery Comet Hartley 2 Nucleus shape: Elongated Nucleus size (estimated): About 2.2 kilometers (1.4 miles) long Nucleus mass: Roughly 280 million metric tons Nucleus rotation period: About 18 hours Nucleus composition: Water ice, carbon dioxide ice, silicate dust Mission Launch: Jan. 12, 2005 Launch site: Cape Canaveral Air Force Station, Florida Launch vehicle: Delta II 7925 with Star 48 upper stage Impact with Tempel 1: 10:52 p.m. PDT July 3, 2005 (1:52 a.m. EDT July 4, 2005) Earth-comet distance at time of impact: 133.6 million kilometers (83 million miles) Total distance traveled by spacecraft from Earth to Tempel 1: 431 million kilometers (268 million miles) Flyby of Hartley 2: About 10 a.m. EDT or 7 a.m. PDT Nov. 4, 2010 Additional distance traveled by spacecraft to Hartley 2: About 4.6 billion kilometers (2.9 billion miles) Program Cost of Deep Impact: $267 million total (not including launch vehicle), consisting of $252 million spacecraft development and $15 million mission operations Cost of EPOXI extended mission: $42 million, for operations from 2007 to end of project at the end of fiscal year 2011. -
Planetary Science
Mission Directorate: Science Theme: Planetary Science Theme Overview Planetary Science is a grand human enterprise that seeks to discover the nature and origin of the celestial bodies among which we live, and to explore whether life exists beyond Earth. The scientific imperative for Planetary Science, the quest to understand our origins, is universal. How did we get here? Are we alone? What does the future hold? These overarching questions lead to more focused, fundamental science questions about our solar system: How did the Sun's family of planets, satellites, and minor bodies originate and evolve? What are the characteristics of the solar system that lead to habitable environments? How and where could life begin and evolve in the solar system? What are the characteristics of small bodies and planetary environments and what potential hazards or resources do they hold? To address these science questions, NASA relies on various flight missions, research and analysis (R&A) and technology development. There are seven programs within the Planetary Science Theme: R&A, Lunar Quest, Discovery, New Frontiers, Mars Exploration, Outer Planets, and Technology. R&A supports two operating missions with international partners (Rosetta and Hayabusa), as well as sample curation, data archiving, dissemination and analysis, and Near Earth Object Observations. The Lunar Quest Program consists of small robotic spacecraft missions, Missions of Opportunity, Lunar Science Institute, and R&A. Discovery has two spacecraft in prime mission operations (MESSENGER and Dawn), an instrument operating on an ESA Mars Express mission (ASPERA-3), a mission in its development phase (GRAIL), three Missions of Opportunities (M3, Strofio, and LaRa), and three investigations using re-purposed spacecraft: EPOCh and DIXI hosted on the Deep Impact spacecraft and NExT hosted on the Stardust spacecraft. -
UNA Planetarium Newsletter Vol. 4. No. 2
UNA Planetarium Image of the Month Newsletter Vol. 4. No. 2 Feb, 2012 I was asked by a student recently why NASA was being closed down. This came as a bit of a surprise but it is somewhat understandable. The retirement of the space shuttle fleet last year was the end of an era. The shuttle serviced the United States’ space program for more than twenty years and with no launcher yet ready to replace the shuttles it might appear as if NASA is done. This is in part due to poor long-term planning on the part of NASA. However, contrary to what This image was obtained by the Cassini spacecraft in orbit around Saturn. It shows some people think, the manned the small moon Dione with the limb of the planet in the background. Dione is spaceflight program at NASA is alive and about 1123km across and the spacecraft was about 57000km from the moon well. In fact NASA is currently taking when the image was taken. Dione, like many of Saturn’s moons is probably mainly applications for the next astronaut corps ice. The shadows of Saturn’s rings appear on the planet as the stripping you see to and will send spacefarers to the the left of Dione. The Image courtesy NASA. International Space Station to conduct research in orbit. They will ride on Russian rockets, but they will be American astronauts. The confusion over the fate of NASA also Astro Quote: “Across the exposes the fact that many of the Calendar for Feb/Mar 2012 important missions and projects NASA is sea of space, the stars involved in do not have the high public are other suns.” Feb 14 Planetarium Public Night profile 0f the Space Shuttles. -
The Evolving Launch Vehicle Market Supply and the Effect on Future NASA Missions
Presented at the 2007 ISPA/SCEA Joint Annual International Conference and Workshop - www.iceaaonline.com The Evolving Launch Vehicle Market Supply and the Effect on Future NASA Missions Presented at the 2007 ISPA/SCEA Joint International Conference & Workshop June 12-15, New Orleans, LA Bob Bitten, Debra Emmons, Claude Freaner 1 Presented at the 2007 ISPA/SCEA Joint Annual International Conference and Workshop - www.iceaaonline.com Abstract • The upcoming retirement of the Delta II family of launch vehicles leaves a performance gap between small expendable launch vehicles, such as the Pegasus and Taurus, and large vehicles, such as the Delta IV and Atlas V families • This performance gap may lead to a variety of progressions including – large satellites that utilize the full capability of the larger launch vehicles, – medium size satellites that would require dual manifesting on the larger vehicles or – smaller satellites missions that would require a large number of smaller launch vehicles • This paper offers some comparative costs of co-manifesting single- instrument missions on a Delta IV/Atlas V, versus placing several instruments on a larger bus and using a Delta IV/Atlas V, as well as considering smaller, single instrument missions launched on a Minotaur or Taurus • This paper presents the results of a parametric study investigating the cost- effectiveness of different alternatives and their effect on future NASA missions that fall into the Small Explorer (SMEX), Medium Explorer (MIDEX), Earth System Science Pathfinder (ESSP), Discovery, -
P6.31 Long-Term Total Solar Irradiance (Tsi) Variability Trends: 1984-2004
P6.31 LONG-TERM TOTAL SOLAR IRRADIANCE (TSI) VARIABILITY TRENDS: 1984-2004 Robert Benjamin Lee III∗ NASA Langley Research Center, Atmospheric Sciences, Hampton, Virginia Robert S. Wilson and Susan Thomas Science Application International Corporation (SAIC), Hampton, Virginia ABSTRACT additional long-term TSI variability component, 0.05 %, with a period longer than a decade. The incoming total solar irradiance (TSI), Analyses of the ERBS/ERBE data set do not typically referred to as the “solar constant,” is support the Wilson and Mordvinor analyses being studied to identify long-term TSI changes, approach because it used the Nimbus-7 data which may trigger global climate changes. The set which exhibited a significant ACR response TSI is normalized to the mean earth-sun shift of 0.7 Wm-2 (Lee et al,, 1995; Chapman et distance. Studies of spacecraft TSI data sets al., 1996). confirmed the existence of 0.1 %, long-term TSI variability component with a period of 10 years. In our current paper, analyses of the 1984- The component varied directly with solar 2004, ERBS/ERBE measurements, along with magnetic activity associated with recent 10-year the other spacecraft measurements, are sunspot cycles. The 0.1 % TSI variability presented as well as the shortcoming of the component is clearly present in the spacecraft ACRIM study. Long-term, incoming total solar data sets from the 1984-2004, Earth Radiation irradiance (TSI) measurement trends were Budget Experiment (ERBE) active cavity validated using proxy TSI values, derived from radiometer (ACR) solar monitor; 1978-1993, indices of solar magnetic activity. Typically, Nimbus-7 HF; 1980-1989, Solar Maximum three overlapping spacecraft data sets were Mission [SMM] ACRIM; 1991-2004, Upper used to validate long-term TSI variability trends. -
Planetary Science Update & Perspectives on Venus Exploration
Planetary Science Update & Perspectives on Venus Exploration Presentation at VEXAG James L. Green Director, Planetary Science Division May 6, 2008 1 Outline • FY09 Presidents Budget • Venus exploration opportunities: – Plans for next New Frontiers – Plans for next Discovery – Plans for SALMON – R&A opportunities 2 BUDGET BY SCIENCE THEME 3 Planetary Division 4 Planetary Division 5 What Changed, What’s the Same What Changed: • Initiated an Outer Planets Flagship (OPF) study activity joint with ESA/JAXA. • Lunar Science Research augmented to include a series of small lunar spacecraft. • Augments and enhances R&A to return more results from Planetary missions. • Discovery Program: Includes the recently selected MoOs (EPOXI and Stardust-NExT), adds Aspera-3 2nd extension (ESA/Mars Express), and selected GRAIL. • Preserves critical ISP work FY08 thru FY10, but deletes outyear activities in favor of more critical R&A and RPS enhancements. • Completes the Advanced Stirling RPS development and prepares for flight demonstration. • Mars Scout 2011 delayed to 2013 due to conflict of interest discovered during proposal evaluation. • Direction to the Mars Program to study Mars Sample Return (MSR) as a next decade goal • Expands US participation on the ESA/ExoMars mission by funding the potential selection of BOTH candidate U.S. instruments and EDL support. What’s the Same: • Discovery Program: MESSENGER, Dawn, Mars Express/Aspera-3, Chandraayn/MMM • New Frontiers Program: Juno and New Horizons • Mars Program: Odyssey, MER, MRO, Phoenix, MSL • Research -
EDITOR's in This Issue
rvin bse g S O ys th t r e a m E THE EARTH OBSERVER May/June 2001 Vol. 13 No. 3 In this issue . EDITOR’S SCIENCE MEETINGS Joint Advanced Microwave Scanning Michael King Radiometer (AMSR) Science Team EOS Senior Project Scientist Meeting. 3 Clouds and The Earth’s Radiant Energy I’m pleased to announce that NASA’s Earth Science Enterprise is sponsoring System (CERES) Science Team Meeting a problem for the Odyssey of the Mind competitions during the 2001-2002 . 9 school year. It is a technical problem involving an original performance about environmental preservation. The competitions will involve about The ACRIMSAT/ACRIM3 Experiment — 450,000 students from kindergarten through college worldwide, and will Extending the Precision, Long-Term Total culminate in a World Finals next May in Boulder, CO where the “best of the Solar Irradiance Climate Database . .14 best” will compete for top awards in the international competitions. It is estimated that we reach 1.5 to 2 million students, parents, teachers/ SCIENCE ARTICLES administrators, coaches, etc. internationally through participation in this Summary of the International Workshop on LAI Product Validation. 18 program. An Introduction to the Federation of Earth The Odyssey of the Mind Program fosters creative thinking and problem- Science Information Partners . 19 solving skills among participating students from kindergarten through col- lege. Students solve problems in a variety of areas from building mechanical Tools and Systems for EOS Data . 23 devices such as spring-driven vehicles to giving their own interpretation of literary classics. Through solving problems, students learn lifelong skills Status and Plans for HDF-EOS, NASA’s such as working with others as a team, evaluating ideas, making decisions, Format for EOS Standard Products . -
Budget of the United States Government
FISCAL YEAR 2002 BUDGET BUDGET OF THE UNITED STATES GOVERNMENT THE BUDGET DOCUMENTS Budget of the United States Government, Fiscal Year 2002 A Citizen's Guide to the Federal Budget, Budget of the contains the Budget Message of the President and information on United States Government, Fiscal Year 2002 provides general the President's 2002 proposals by budget function. information about the budget and the budget process. Analytical Perspectives, Budget of the United States Govern- Budget System and Concepts, Fiscal Year 2002 contains an ment, Fiscal Year 2002 contains analyses that are designed to high- explanation of the system and concepts used to formulate the Presi- light specified subject areas or provide other significant presentations dent's budget proposals. of budget data that place the budget in perspective. The Analytical Perspectives volume includes economic and account- Budget Information for States, Fiscal Year 2002 is an Office ing analyses; information on Federal receipts and collections; analyses of Management and Budget (OMB) publication that provides proposed of Federal spending; detailed information on Federal borrowing and State-by-State obligations for the major Federal formula grant pro- debt; the Budget Enforcement Act preview report; current services grams to State and local governments. The allocations are based estimates; and other technical presentations. It also includes informa- on the proposals in the President's budget. The report is released tion on the budget system and concepts and a listing of the Federal after the budget. programs by agency and account. Historical Tables, Budget of the United States Government, AUTOMATED SOURCES OF BUDGET INFORMATION Fiscal Year 2002 provides data on budget receipts, outlays, sur- pluses or deficits, Federal debt, and Federal employment over an The information contained in these documents is available in extended time period, generally from 1940 or earlier to 2006. -
Space Science Acronyms
Space Science Acronyms AA Auroral radio Absorption AACGM Altitude Adjusted Corrected GeoMagnetic ABI Auroral Boundary Index ACCENT Atmospheric Chemistry of Combustion Emissions Near the Tropopause ACE Advanced Composition Explorer ACF Auto Correlation Functions ACR Anomalous Cosmic Rays ADCS Attitude Determination and Control Subsystem ADEOS ADvanced Earth Observation Satellite (Japan) ADEP ARTIST Data Editing and Printing ADMS Atmospheric Density Mass Spectrometer AE Atmosphere Explorer AE Auroral Electrojet index AEPI Atmospheric Emissions Photometric Imager AES Auger Electron Spectroscopy AEU Antenna Element Unit AFB Air Force Base AFGL Air Force Geophysical Laboratory AFIT Air Force Institute of Technology AFOSR Air Force Office of Scientific Research AFRL Air Force Research Lab AFSCN Air Force Satellite Control Network AFSPC Air Force SPace Command AFWA Air Force Weather Agency AGILE Astrorivelatore Gamma a Immagini Leggero AGU American Geophysical Union AGW Atmospheric Gravity Waves AI Asymmetry Index AIDA Arecibo Initiative in Dynamics of the Atmosphere AIM Aeronomy of Ices in the Mesosphere AKR Auroral Kilometric Radiation AL Auroral Electrojet Lower Limit Index ALF Absorption Limiting Frequency ALIS Airglow Limb Imaging System ALOMAR Arctic Lidar Observatory for Middle Atmospheric Research ALOS Advanced Land Observing Satellite ALSP Apollo Lunar Surface Probe ALTAIR ARPA Long-Range Tracking and Identification Radar AMBER African Meridian B-field Educational Research Array AMCSR Advanced Modular Coherent Scatter Radar AMI Aeronomic