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Lara (Lander Radioscience) on the Exomars 2020 Surface Platform
EPSC Abstracts Vol. 13, EPSC-DPS2019-891-1, 2019 EPSC-DPS Joint Meeting 2019 c Author(s) 2019. CC Attribution 4.0 license. LaRa (Lander Radioscience) on the ExoMars 2020 Surface Platform. Véronique Dehant1,2, Sébastien Le Maistre1, Rose-Marie Baland1, Özgür Karatekin1, Marie-Julie Péters1, Attilio Rivoldini1, Tim Van Hoolst1, Bart Van Hove1, Marie Yseboodt1, and Alexander Kosov3 (1) Royal Observatory of Belgium (ROB), Brussels, Belgium, (2) Université catholique de Louvain, Louvain-la-Neuve, Belgium, (3) Space Research Institute Russian Academy of Sciences (IKI), Moscow, Russia Abstract The surface platform Kazachok will house the radio science experiment LaRa (Lander Radioscience) to support specific scientific objectives of the ExoMars 2020 mission. The LaRa experiment is described and the scientific objectives and strategies are detailed in this presentation. Figure 1. LaRa principle. 1. Introduction 2. The LaRa instrument In the last decade, several missions and observations As LaRa performs a coherent retransmission of the have brought new data on the planet Mars, obtained uplink carrier to the downlink carrier, the downlink by either spacecraft orbiting around Mars or landers frequency is scaled by a constant multiplier, the and rovers on the surface. Among other things, the transponder ratio (880/749). By emitting the uplink information acquired will improve our understanding signal from Earth, the masers in the ground stations of Mars’ interior, evolution and habitability. Data ensure frequency stability of LaRa’s radiosignal. obtained by new space missions are driving further The LaRa instrument is built in collaboration with progress in this field. In 2020, the European Space other Belgian actors under the lead of ESA PRODEX, Agency ESA and the Russian space agency and ROB providing the instrument specifications. -
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. -
Change in the Wind and Climate at the Exomars 2022 Landing Site in Oxia Planum (Mars)
52nd Lunar and Planetary Science Conference 2021 (LPI Contrib. No. 2548) 1442.pdf CHANGE IN THE WIND AND CLIMATE AT THE EXOMARS 2022 LANDING SITE IN OXIA PLANUM (MARS). S. Silvestro1,2, D. Tirsch3, A. Pacifici4, F. Salese5,4, D.A. Vaz6, A. Neesemann7, C.I. Popa1, M. Pajola8, G. Franzese1, G. Mongelluzzo1,9, A.C. Ruggeri1, F. Cozzolino1, C. Porto1, F. Esposito1. 1INAF, Osservatorio Astronomico di Capodimonte, Napoli, Italy ([email protected]). 2SETI Institute, Carl Sagan Center, Mountain View, CA, USA. 3Institute of Planetary Research, DLR, Berlin, Germany. 4IRSPS, Università G. D’Annunzio, Pescara, Italy. 5Centro de Astrobiología, CSIC- INTA, Madrid. 6CESR University of Coimbra, Portugal. 7Freie Universitat, Berlin, Germany. 8INAF, Osservatorio Astronomico di Padova, Padova, Italy. 9Department of Industrial Engineering, Università Federico II, Napoli, Italy. Introduction: The ESA/ROSCOSMOS ExoMars Ridges are even visible in association with impact crater 2022 (a rover named “Rosalind Franklin” and a surface ejecta and are superimposed by 10-25 m craters and platform named “Kazachok”) [1] will land in Oxia boulders, so they pre-date these impact events (Fig. 1c). Planum (18.2° N; 24.3° W) to search for signs of past or When associated with crater ejecta, ridges locally show present life on Mars and to perform long-term two different crests (Fig. 2b). Both crests are truncated atmospheric investigations [2,3]. Oxia Planum shows by craters, which suggest that the double crest large outcrops of clay-rich Noachian-aged arrangement was emplaced before the impacts (Fig. 2c). phyllosilicates [4,5]. The clay bearing unit is To better understand the relative age of the ridges, we unconformably overlain by an Amazonian dark resistant mapped their occurrence on 316 craters in the study area unit (Adru), which was interpreted to be remnants of an that we qualitatively classified as relatively Early Amazonian (2.6 Ga) volcanic material [4]. -
Managing Software Development – the Hidden Risk * Dr
Managing Software Development – The Hidden Risk * Dr. Steve Jolly Sensing & Exploration Systems Lockheed Martin Space Systems Company *Based largely on the work: “Is Software Broken?” by Steve Jolly, NASA ASK Magazine, Spring 2009; and the IEEE Fourth International Conference of System of Systems Engineering as “System of Systems in Space 1 Exploration: Is Software Broken?”, Steve Jolly, Albuquerque, New Mexico June 1, 2009 Brief history of spacecraft development • Example of the Mars Exploration Program – Danger – Real-time embedded systems challenge – Fault protection 2 Robotic Mars Exploration 2011 Mars Exploration Program Search: Search: Search: Determine: Characterize: Determine: Aqueous Subsurface Evidence for water Global Extent Subsurface Bio Potential Minerals Ice Found Found of Habitable Ice of Site 3 Found Environments Found In Work Image Credits: NASA/JPL Mars: Easy to Become Infamous … 1. [Unnamed], USSR, 10/10/60, Mars flyby, did not reach Earth orbit 2. [Unnamed], USSR, 10/14/60, Mars flyby, did not reach Earth orbit 3. [Unnamed], USSR, 10/24/62, Mars flyby, achieved Earth orbit only 4. Mars 1, USSR, 11/1/62, Mars flyby, radio failed 5. [Unnamed], USSR, 11/4/62, Mars flyby, achieved Earth orbit only 6. Mariner 3, U.S., 11/5/64, Mars flyby, shroud failed to jettison 7. Mariner 4, U.S. 11/28/64, first successful Mars flyby 7/14/65 8. Zond 2, USSR, 11/30/64, Mars flyby, passed Mars radio failed, no data 9. Mariner 6, U.S., 2/24/69, Mars flyby 7/31/69, returned 75 photos 10. Mariner 7, U.S., 3/27/69, Mars flyby 8/5/69, returned 126 photos 11. -
“Phobos Events”—Signatures of Solar Wind Interaction with a Gas Torus?
Earth Planets Space, 50, 453–462, 1998 “Phobos events”—Signatures of solar wind interaction with a gas torus? K. Baumgärtel1,7, K. Sauer2,7, E. Dubinin2,3,7, V. Tarrasov4,5,7, and M. Dougherty6 1Astrophysikalisches Institut Potsdam, 14482 Potsdam, Germany 2Max-Planck-Institut für Aeronomie, 37191 Katlenburg-Lindau, Germany 3Institute of Space Research, 117810 Moscow, Russia 4Centre d’Etude des Environments Terrestre et Planetaires, 78140 Velizy, France 5Lviv Centre of the Institute of Space Research, 290601 Lviv, Ukraine 6Space and Atmospheric Physics, Imperial College, London SW72AZ, U.K. 7International Space Science Institute (ISSI), 3012 Bern, Switzerland (Received August 28, 1997; Revised January 30, 1998; Accepted February 20, 1998) Following recent simulations of the Phobos dust belt formation (Krivov and Hamilton, 1997), the effective dust- induced charge density as estimated is too small to account for the significant solar wind (sw) plasma and magnetic field perturbations observed by the Phobos-2 spacecraft in 1989 near the crossings of the Phobos orbit. In this paper the sw interaction with the Phobos neutral gas torus is re-investigated in a two-ion plasma model in which the newly created ions are treated as unmagnetized, forming a beam (not a ring beam) in the sw frame. A linear instability analysis based on both a cold fluid and a kinetic approach shows that electromagnetic ion beam waves in the whistler range of frequencies, driven most unstable at oblique propagation and appearing as almost purely growing waves in the beam frame, aquire high growth rates and provide a likely mechanism to cause the observed events. -
Project Pan-STARRS and the Outer Solar System
Project Pan-STARRS and the Outer Solar System David Jewitt Institute for Astronomy, 2680 Woodlawn Drive, Honolulu, HI 96822 ABSTRACT Pan-STARRS, a funded project to repeatedly survey the entire visible sky to faint limiting magnitudes (mR ∼ 24), will have a substantial impact on the study of the Kuiper Belt and outer solar system. We briefly review the Pan- STARRS design philosophy and sketch some of the planetary science areas in which we expect this facility to make its mark. Pan-STARRS will find ∼20,000 Kuiper Belt Objects within the first year of operation and will obtain accurate astrometry for all of them on a weekly or faster cycle. We expect that it will revolutionise our knowledge of the contents and dynamical structure of the outer solar system. Subject headings: Surveys, Kuiper Belt, comets 1. Introduction to Pan-STARRS Project Pan-STARRS (short for Panoramic Survey Telescope and Rapid Response Sys- tem) is a collaboration between the University of Hawaii's Institute for Astronomy, the MIT Lincoln Laboratory, the Maui High Performance Computer Center, and Science Ap- plications International Corporation. The Principal Investigator for the project, for which funding started in the fall of 2002, is Nick Kaiser of the Institute for Astronomy. Operations should begin by 2007. The science objectives of Pan-STARRS span the full range from planetary to cosmolog- ical. The instrument will conduct a survey of the solar system that is staggering in power compared to anything yet attempted. A useful measure of the raw survey power, SP , of a telescope is given by AΩ SP = (1) θ2 where A [m2] is the collecting area of the telescope primary, Ω [deg2] is the solid angle that is imaged and θ [arcsec] is the full-width at half maximum (FWHM) of the images { 2 { produced by the telescope. -
Ice & Stone 2020
Ice & Stone 2020 WEEK 17: APRIL 19-25, 2020 Presented by The Earthrise Institute # 17 Authored by Alan Hale This week in history APRIL 19 20 21 22 23 24 25 APRIL 20, 1910: Comet 1P/Halley passes through perihelion at a heliocentric distance of 0.587 AU. Halley’s 1910 return, which is described in a previous “Special Topics” presentation, was quite favorable, with a close approach to Earth (0.15 AU) and the exhibiting of the longest cometary tail ever recorded. APRIL 20, 2025: NASA’s Lucy mission is scheduled to pass by the main belt asteroid (52246) Donaldjohanson. Lucy is discussed in a previous “Special Topics” presentation. APRIL 19 20 21 22 23 24 25 APRIL 21, 2024: Comet 12P/Pons-Brooks is predicted to pass through perihelion at a heliocentric distance of 0.781 AU. This comet, with a discussion of its viewing prospects for 2024, is a previous “Comet of the Week.” APRIL 19 20 21 22 23 24 25 APRIL 22, 2020: The annual Lyrid meteor shower should be at its peak. Normally this shower is fairly weak, with a peak rate of not much more than 10 meteors per hour, but has been known to exhibit significantly stronger activity on occasion. The moon is at its “new” phase on April 23 this year and thus the viewing circumstances are very good. COVER IMAGE CREDIT: Front and back cover: This artist’s conception shows how families of asteroids are created. Over the history of our solar system, catastrophic collisions between asteroids located in the belt between Mars and Jupiter have formed families of objects on similar orbits around the sun. -
Symposium on Telescope Science
Proceedings for the 26th Annual Conference of the Society for Astronomical Sciences Symposium on Telescope Science Editors: Brian D. Warner Jerry Foote David A. Kenyon Dale Mais May 22-24, 2007 Northwoods Resort, Big Bear Lake, CA Reprints of Papers Distribution of reprints of papers by any author of a given paper, either before or after the publication of the proceedings is allowed under the following guidelines. 1. The copyright remains with the author(s). 2. Under no circumstances may anyone other than the author(s) of a paper distribute a reprint without the express written permission of all author(s) of the paper. 3. Limited excerpts may be used in a review of the reprint as long as the inclusion of the excerpts is NOT used to make or imply an endorsement by the Society for Astronomical Sciences of any product or service. Notice The preceding “Reprint of Papers” supersedes the one that appeared in the original print version Disclaimer The acceptance of a paper for the SAS proceedings can not be used to imply or infer an endorsement by the Society for Astronomical Sciences of any product, service, or method mentioned in the paper. Published by the Society for Astronomical Sciences, Inc. First printed: May 2007 ISBN: 0-9714693-6-9 Table of Contents Table of Contents PREFACE 7 CONFERENCE SPONSORS 9 Submitted Papers THE OLIN EGGEN PROJECT ARNE HENDEN 13 AMATEUR AND PROFESSIONAL ASTRONOMER COLLABORATION EXOPLANET RESEARCH PROGRAMS AND TECHNIQUES RON BISSINGER 17 EXOPLANET OBSERVING TIPS BRUCE L. GARY 23 STUDY OF CEPHEID VARIABLES AS A JOINT SPECTROSCOPY PROJECT THOMAS C. -
Perturbation of the Oort Cloud by Close Stellar Encounter with Gliese 710
Bachelor Thesis University of Groningen Kapteyn Astronomical Institute Perturbation of the Oort Cloud by Close Stellar Encounter with Gliese 710 August 5, 2019 Author: Rens Juris Tesink Supervisors: Kateryna Frantseva and Nickolas Oberg Abstract Context: Our Sun is thought to have an Oort cloud, a spherically symmetric shell of roughly 1011 comets orbiting with semi major axes between ∼ 5 × 103 AU and 1 × 105 AU. It is thought to be possible that other stars also possess comet clouds. Gliese 710 is a star expected to have a close encounter with the Sun in 1.35 Myrs. Aims: To simulate the comet clouds around the Sun and Gliese 710 and investigate the effect of the close encounter. Method: Two REBOUND N-body simulations were used with the help of Gaia DR2 data. Simulation 1 had a total integration time of 4 Myr, a time-step of 1 yr, and 10,000 comets in each comet cloud. And Simulation 2 had a total integration time of 80,000 yr, a time-step of 0.01 yr, and 100,000 comets in each comet cloud. Results: Simulation 2 revealed a 1.7% increase in the semi-major axis at time of closest approach and a population loss of 0.019% - 0.117% for the Oort cloud. There was no statistically significant net change of the inclination of the comets during this encounter and a 0.14% increase in the eccentricity at the time of closest approach. Contents 1 Introduction 3 1.1 Comets . .3 1.2 New comets and the Oort cloud . .5 1.3 Structure of the Oort cloud . -
Dynamical Meteorology of the Martian Atmosphere
Aspects of Martian Meteorology From SurfaceDynamical Observations Meteorology Including of from the the Martian2012 Mars Atmosphere “Curiosity” Rover Mars Science Laboratory Curiosity The “Curiosity” rover in clean room at JPL Mars Science Laboratory Curiosity Mars Science Laboratory Curiosity Mars Science Laboratory Curiosity Outline • Basics – orbit, topography, atmospheric composition • Basics – dust, dust everywhere • History of Mars planetary missions 1962-today • Satellite measurments of atmospheric temperature • Surface T, P and u,v observations • Pressure record – annual cycle, baroclinic waves • Pressure record – diurnal variations (atmospheric tides) • Mars General Circulation Models (GCMs) • Model simulations of atmospheric tides • I am curious about Curiosity! Mars orbit and annual cycle • Measure time through the year (or position through the o orbit) by Ls (“Areocentric longitude”) (defined so that Ls=0 is NH spring equinox “March 21”) • Aphelion 249,209,300 km • Perihelion 206,669,000 km o • Ls of perihelion 250 - late SH spring Mars orbit and annual cycle • Measure time through the year (or position through the o orbit) by Ls (“Areocentric longitude”) (defined so that Ls=0 is NH spring equinox “March 21”) 2 2 Ra /Rp = 1.42 (vs. 1.07 for Earth) • Aphelion 249,209,300 km • Perihelion 206,669,000 km o • Ls of perihelion 250 - late SH spring CO2 Ice Cap Helas Basin Tharsus Rise Helas Basin Equatorial section through smoothed topography Equatorial section through smoothed topography Zonal wavenumber 2 topography • 1962 Mars -
AEROSPACE Magazine App, for an Online Account and Pay Your Subscription Expanded Our E-Library Resources and Launched a Straight Away
AE December 2020 ROSPACE SMART AIRLINER CABINS UK INTEGRATED REVIEW: ALREADY DEAD? CHANGING BUSINESS AVIATION’S IMAGE www.aerosociety.com December 2020 MARS ATTRACTS V olume 47 Number 12 RED PLANET GETS SET FOR NEW ROBOT VISITORS Royal A eronautical Society 11–15 & 19–21 JANUARY 2021 | ONLINE AN E X P A N DEXPERIENCE E D The world’s largest event for aerospace research and development just got bigger! The virtual 2021 AIAA SciTech Forum has expanded into eight days of programming over a two-week time frame. The new format offers a convenient, condensed daily schedule, allowing you to balance your work load and home life while attending a virtual event. Each day will be anchored by a high-level keynote or lecture, with 2,500+ technical presentations, panels, and special sessions scheduled throughout the forum. The forum will explore the functional role and importance of diversity in advancing the aerospace industry. Hear from high-profile industry leaders as they provide perspectives on how diversification of teams, industry sectors, technologies, and design cycles can all be leveraged toward innovation. REGISTER NOW aiaa.org/2021SciTech Volume 47 Number 12 December 2020 EDITORIAL Contents Lost Moon? Regulars 4 Radome 12 Transmission After a week of nail-biting excitement, last month saw a new president The latest aviation and Your letters, emails, tweets aeronautical intelligence, and social media feedback. elected in the US, Joe Biden. Although he is yet to be formally elected by analysis and comment. the Electoral College and inaugurated in January, it is extremely unlikely that 58 The Last Word this will be overturned. -
Week 5: January 26-February 1, 2020
5# Ice & Stone 2020 Week 5: January 26-February 1, 2020 Presented by The Earthrise Institute About Ice And Stone 2020 It is my pleasure to welcome all educators, students, topics include: main-belt asteroids, near-Earth asteroids, and anybody else who might be interested, to Ice and “Great Comets,” spacecraft visits (both past and Stone 2020. This is an educational package I have put future), meteorites, and “small bodies” in popular together to cover the so-called “small bodies” of the literature and music. solar system, which in general means asteroids and comets, although this also includes the small moons of Throughout 2020 there will be various comets that are the various planets as well as meteors, meteorites, and visible in our skies and various asteroids passing by Earth interplanetary dust. Although these objects may be -- some of which are already known, some of which “small” compared to the planets of our solar system, will be discovered “in the act” -- and there will also be they are nevertheless of high interest and importance various asteroids of the main asteroid belt that are visible for several reasons, including: as well as “occultations” of stars by various asteroids visible from certain locations on Earth’s surface. Ice a) they are believed to be the “leftovers” from the and Stone 2020 will make note of these occasions and formation of the solar system, so studying them provides appearances as they take place. The “Comet Resource valuable insights into our origins, including Earth and of Center” at the Earthrise web site contains information life on Earth, including ourselves; about the brighter comets that are visible in the sky at any given time and, for those who are interested, I will b) we have learned that this process isn’t over yet, and also occasionally share information about the goings-on that there are still objects out there that can impact in my life as I observe these comets.