Navigating Smallsat Development: Where to Begin and What to Expect
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Cassini Update
Cassini Update Dr. Linda Spilker Cassini Project Scientist Outer Planets Assessment Group 22 February 2017 Sols%ce Mission Inclina%on Profile equator Saturn wrt Inclination 22 February 2017 LJS-3 Year 3 Key Flybys Since Aug. 2016 OPAG T124 – Titan flyby (1584 km) • November 13, 2016 • LAST Radio Science flyby • One of only two (cf. T106) ideal bistatic observations capturing Titan’s Northern Seas • First and only bistatic observation of Punga Mare • Western Kraken Mare not explored by RSS before T125 – Titan flyby (3158 km) • November 29, 2016 • LAST Optical Remote Sensing targeted flyby • VIMS high-resolution map of the North Pole looking for variations at and around the seas and lakes. • CIRS last opportunity for vertical profile determination of gases (e.g. water, aerosols) • UVIS limb viewing opportunity at the highest spatial resolution available outside of occultations 22 February 2017 4 Interior of Hexagon Turning “Less Blue” • Bluish to golden haze results from increased production of photochemical hazes as north pole approaches summer solstice. • Hexagon acts as a barrier that prevents haze particles outside hexagon from migrating inward. • 5 Refracting Atmosphere Saturn's• 22unlit February rings appear 2017 to bend as they pass behind the planet’s darkened limb due• 6 to refraction by Saturn's upper atmosphere. (Resolution 5 km/pixel) Dione Harbors A Subsurface Ocean Researchers at the Royal Observatory of Belgium reanalyzed Cassini RSS gravity data• 7 of Dione and predict a crust 100 km thick with a global ocean 10’s of km deep. Titan’s Summer Clouds Pose a Mystery Why would clouds on Titan be visible in VIMS images, but not in ISS images? ISS ISS VIMS High, thin cirrus clouds that are optically thicker than Titan’s atmospheric haze at longer VIMS wavelengths,• 22 February but optically 2017 thinner than the haze at shorter ISS wavelengths, could be• 8 detected by VIMS while simultaneously lost in the haze to ISS. -
New Moon Explorer Mission Concept
New Moon Explorer Mission Concept Les JOHNSONa,*, John CARRa,Jared Jared DERVANa, Alexander FEWa, Andy HEATONa, Benjamin Malphrusd, Leslie MCNUTTa, Joe NUTHb, Dana Tursec, and Aaron Zuchermand aNASA MSFC, Huntsville, AL USA bNASA GSFC, Huntsville, AL USA cRoccor, Longmont, CO USA dMorehead State University, Morehead, KY USA Abstract New Moon Explorer (NME) is a smallsat reconnaissance mission concept to explore Earth’s ‘New Moon’, the recently discovered Earth orbital companion asteroid 469219 Kamoʻoalewa (formerly 2016HO3), using solar sail propulsion. NME would determine Kamoʻoalewa’s spin rate, pole position, shape, structure, mass, density, chemical composition, temperature, thermal inertia, regolith characteristics, and spectral type using onboard instrumentation. If flown, NME would demonstrate multiple enabling technologies, including solar sail propulsion, large-area thin film power generation, and small spacecraft technology tailored for interplanetary space missions. Leveraging the solar sail technology and mission expertise developed by NASA for the Near Earth Asteroid (NEA) Scout mission, affordably learning more about our newest near neighbor is now a possibility. The mission is not yet planned for flight. Keywords: Kamoʻoalewa, solar sail, moon, Apollo asteroid 1. Introduction The emerging capabilities of extremely small spacecraft, coupled with solar sail propulsion, offers an opportunity for low-cost reconnaissance of the recently- discovered asteroid 469219 Kamoʻoalewa (formerly 2016HO3). While Kamoʻoalewa is not strictly a new moon, it is, for all practical purposes, an orbital companion of the Earth as the planet circles the sun. Kamoʻoalewa’s orbit relative to the Earth can be seen in Figure 1. Using the technologies developed for the NASA Fig. 1 The orbit of Earth’s companion, Kamoʻoalewa Near Earth Asteroid (NEA) Scout mission, a 6U as both it and the Earth orbit the Sun. -
The Cubesat Mission to Study Solar Particles (Cusp) Walt Downing IEEE Life Senior Member Aerospace and Electronic Systems Society President (2020-2021)
The CubeSat Mission to Study Solar Particles (CuSP) Walt Downing IEEE Life Senior Member Aerospace and Electronic Systems Society President (2020-2021) Acknowledgements – National Aeronautics and Space Administration (NASA) and CuSP Principal Investigator, Dr. Mihir Desai, Southwest Research Institute (SwRI) Feature Articles in SYSTEMS Magazine Three-part special series on Artemis I CubeSats - April 2019 (CuSP, IceCube, ArgoMoon, EQUULEUS/OMOTENASHI, & DSN) ▸ - September 2019 (CisLunar Explorers, OMOTENASHI & Iris Transponder) - March 2020 (BioSentinnel, Near-Earth Asteroid Scout, EQUULEUS, Lunar Flashlight, Lunar Polar Hydrogen Mapper, & Δ-Differential One-Way Range) Available in the AESS Resource Center https://resourcecenter.aess.ieee.org/ ▸Free for AESS members ▸ What are CubeSats? A class of small research spacecraft Built to standard dimensions (Units or “U”) ▸ - 1U = 10 cm x 10 cm x 11 cm (Roughly “cube-shaped”) ▸ - Modular: 1U, 2U, 3U, 6U or 12U in size - Weigh less than 1.33 kg per U NASA's CubeSats are dispensed from a deployer such as a Poly-Picosatellite Orbital Deployer (P-POD) ▸NASA’s CubeSat Launch initiative (CSLI) provides opportunities for small satellite payloads to fly on rockets ▸planned for upcoming launches. These CubeSats are flown as secondary payloads on previously planned missions. https://www.nasa.gov/directorates/heo/home/CubeSats_initiative What is CuSP? NASA Science Mission Directorate sponsored Heliospheric Science Mission selected in June 2015 to be launched on Artemis I. ▸ https://www.nasa.gov/feature/goddard/2016/heliophys ics-cubesat-to-launch-on-nasa-s-sls Support space weather research by determining proton radiation levels during solar energetic particle events and identifying suprathermal properties that could help ▸ predict geomagnetic storms. -
Solar Sail Propulsion for Deep Space Exploration
Solar Sail Propulsion for Deep Space Exploration Les Johnson NASA George C. Marshall Space Flight Center NASA Image We tend to think of space as being big and empty… NASA Image Space Is NOT Empty. We can use the environments of space to our advantage NASA Image Solar Sails Derive Propulsion By Reflecting Photons Solar sails use photon “pressure” or force on thin, lightweight, reflective sheets to produce thrust. 4 NASA Image Real Solar Sails Are Not “Ideal” Billowed Quadrant Diffuse Reflection 4 Thrust Vector Components 4 Solar Sail Trajectory Control Solar Radiation Pressure allows inward or outward Spiral Original orbit Sail Force Force Sail Shrinking orbit Expanding orbit Solar Sails Experience VERY Small Forces NASA Image 8 Solar Sail Missions Flown Image courtesy of Univ. Surrey NASA Image Image courtesy of JAXA Image courtesy of The Planetary Society NanoSail-D (2010) IKAROS (2010) LightSail-1 & 2 CanX-7 (2016) InflateSail (2017) NASA JAXA (2015/2019) Canada EU/Univ. of Surrey The Planetary Society Earth Orbit Interplanetary Earth Orbit Earth Orbit Deployment Only Full Flight Earth Orbit Deployment Only Deployment Only Deployment / Flight 3U CubeSat 315 kg Smallsat 3U CubeSat 3U CubeSat 10 m2 196 m2 3U CubeSat <10 m2 10 m2 32 m2 9 Planned Solar Sail Missions NASA Image NASA Image NASA Image Near Earth Asteroid Scout Advanced Composite Solar Solar Cruiser (2025) NASA (2021) NASA Sail System (TBD) NASA Interplanetary Interplanetary Earth Orbit Full Flight Full Flight Full Flight 100 kg spacecraft 6U CubeSat 12U CubeSat 1653 m2 86 -
Flight Opportunities and Small Spacecraft Technology Program Updates NAC Technology, Innovation and Engineering Committee Meeting | March 19, 2020
Flight Opportunities and Small Spacecraft Technology Program Updates NAC Technology, Innovation and Engineering Committee Meeting | March 19, 2020 Christopher Baker NASA Space Technology Mission Directorate Flight Opportunities and Small Spacecraft Technology Program Executive National Aeronautics and Space Administration 1 CHANGING THE PACE OF SPACE Through Small Spacecraft Technology and Flight Opportunities, Space Tech is pursuing the rapid identification, development, and testing of capabilities that exploit agile spacecraft platforms and responsive launch capabilities to increase the pace of space exploration, discovery, and the expansion of space commerce. National Aeronautics and Space Administration 2 THROUGH SUBORBITAL FLIGHT The Flight Opportunities program facilitates rapid demonstration of promising technologies for space exploration, discovery, and the expansion of space commerce through suborbital testing with industry flight providers LEARN MORE: WWW.NASA.GOV/TECHNOLOGY Photo Credit: Blue Origin National Aeronautics and Space Administration 3 FLIGHT OPPORTUNITIES BY THE NUMBERS Between 2011 and today… In 2019 alone… Supported 195 successful fights Supported 15 successful fights Enabled 676 tests of payloads Enabled 47 tests of payloads 254 technologies in the portfolio 86 technologies in the portfolio 13 active commercial providers 9 active commercial providers National Aeronautics and Space Administration Numbers current as of March 1, 2020 4 TECHNOLOGY TESTED IN SUBORBITAL Lunar Payloads ISS SPACE IS GOING TO EARTH ORBIT, THE MOON, MARS, AND BEYOND Mars 2020 Commercial Critical Space Lunar Payload Exploration Services Solutions National Aeronautics and Space Administration 5 SUBORBITAL INFUSION HIGHLIGHT Commercial Lunar Payload Services Four companies selected as Commercial Lunar Payload Services (CPLS) providers leveraged Flight Opportunities-supported suborbital flights to test technologies that are incorporated into their landers and/or are testing lunar landing technologies under Flight Opportunities for others. -
A Comparison Study on Thermal Control Techniques for a Nanosatellite Carrying Infrared Science Instrument
ICES-2020-15 A comparison study on thermal control techniques for a nanosatellite carrying infrared science instrument Shanmugasundaram Selvadurai1, Amal Chandran2, Sunil C Joshi3 and Teo Hang Tong Edwin 4 Nanyang Technological University, Singapore, 639798 David Valentini5 Thales Alenia Space, Cannes, 06150, France Friedhelm Olschewski6 University of Wuppertal, 42119 Wuppertal, Germany Based on current technological advancements and forecasts, nanosatellites will be used for both scientific and defense applications leveraging advantages on both development cost and development lifecycle. As nanosatellites become more capable, there is an increase in demand for high power applications which makes the missions complex from implementing a proper thermal control system (TCS) to dissipate the huge waste heat generated. One of the applications for nanosatellites is advanced infrared imaging for both scientific and military applications. ARCADE (Atmospheric coupling and Dynamics Explorer), a 27U satellite is being developed by Satellite Research Centre (SaRC) at Nanyang Technological University (NTU) for scientific objectives. The main payload AtmoLITE needs a detector cool down at -30°C and to meet this requirement, an appropriate classical TCS is chosen and described in this paper. Nanosatellites carrying infrared, cryogenic or other scientific instruments that need active cooling, should be equipped with a proper TCS within the highly constrained available volume. Another objective of this study is to compare the existing TCS for nanosatellites and adopt a suitable and efficient TCS for a scientific nanosatellite mission carrying a generic science instrument that needs an active cooling of up to 95K. TCS using Heat pipes (HP), single-phase mechanically pumped fluid loop (SMPFL), and two-phase mechanically pumped fluid loop systems (2ΦMPFL) have been extensively used only by larger satellites. -
Naming the Extrasolar Planets
Naming the extrasolar planets W. Lyra Max Planck Institute for Astronomy, K¨onigstuhl 17, 69177, Heidelberg, Germany [email protected] Abstract and OGLE-TR-182 b, which does not help educators convey the message that these planets are quite similar to Jupiter. Extrasolar planets are not named and are referred to only In stark contrast, the sentence“planet Apollo is a gas giant by their assigned scientific designation. The reason given like Jupiter” is heavily - yet invisibly - coated with Coper- by the IAU to not name the planets is that it is consid- nicanism. ered impractical as planets are expected to be common. I One reason given by the IAU for not considering naming advance some reasons as to why this logic is flawed, and sug- the extrasolar planets is that it is a task deemed impractical. gest names for the 403 extrasolar planet candidates known One source is quoted as having said “if planets are found to as of Oct 2009. The names follow a scheme of association occur very frequently in the Universe, a system of individual with the constellation that the host star pertains to, and names for planets might well rapidly be found equally im- therefore are mostly drawn from Roman-Greek mythology. practicable as it is for stars, as planet discoveries progress.” Other mythologies may also be used given that a suitable 1. This leads to a second argument. It is indeed impractical association is established. to name all stars. But some stars are named nonetheless. In fact, all other classes of astronomical bodies are named. -
Privacy Policy
Privacy Policy Culmia Privacy Policy Culmia Desarrollos Inmobiliarios, S.L.U. (hereinafter, “the manager”), with headquarters in Madrid, Calle Génova, 27, Company Tax No. B-67186999, is an integral manager of property assets and a member of a Property Group to which it provides its services. The manager provides its services to the following property developers who are members of its Group: Company Company Company Company Tax Tax No. No. Saturn Holdco S.A.U. A88554100 Antea Activos Inmobiliarios B88554324 S.L.U. Thrym Activos Inmobiliarios S.L.U. B88554142 Redes Promotora 1 Ma, B88093117 S.L.U. Erriap Activos Inmobiliarios S.L.U. B88554159 Redes Promotora 2 Ma, B88093174 S.L.U. Daphne Activos Inmobiliarios S.L.U. B88554167 Redes Promotora 3 Ma, B88093265 S.L.U. Dione Activos Inmobiliarios S.L.U. B88554183 Redes Promotora 4 Ma, B88093356 S.L.U. Fornjot Activos Inmobiliarios S.L.U. B88554191 Redes Promotora 5 Ma, B88093471 S.L.U. Greip Activos Inmobiliarios S.L.U. B88554217 Redes Promotora 6 Ma, B88145073 S.L.U. Hiperion Activos Inmobiliarios B88554233 Redes Promotora 7 Ma, B88145123 S.L.U. S.L.U. Loge Activos Inmobiliarios S.L.U. B88554241 Redes Promotora 8 Ma, B88145263 S.L.U. Kiviuq Activos Inmobiliarios S.L.U. B88554258 Redes Promotora 9, S.L.U. B88159728 Narvi Activos Inmobiliarios S.L.U. B88554266 Redes 2 2018 Iberica 2 B88160221 S.L.U. Polux Activos Inmobiliarios S.L.U. B88554282 Redes 2 2018 Iberica 3 B88160239 S.L.U. Siarnaq Activos Inmobiliarios S.L.U. B88554290 Redes 2 Promotora B88160247 Inversiones 2018 IV S.L.U. -
Richard Hunter1, Mike Loucks2, Jonathan Currie1, Doug Sinclair3, Ehson Mosleh1, Peter Beck1
Co-Authors: Richard Hunter1, Mike Loucks2, Jonathan Currie1, Doug Sinclair3, Ehson Mosleh1, Peter Beck1 1 Rocket Lab USA, Inc. 2Space Exploration Engineering 3Sinclair by Rocket Lab (formerly Sinclair Interplanetary) Photon-enabled Planetary Small Spacecraft Missions For Decadal Science A White Paper for the 2023-2032 Planetary Decadal Survey 1. OVERVIEW Regular, low-cost Decadal-class science missions to planetary destinations enabled by small high-ΔV spacecraft, like the high-energy Photon, support expanding opportunities for scientists and increase the rate of science return. The high-energy Photon can launch on Electron to precisely target escape asymptotes for planetary small spacecraft missions with payload masses up to ~50 kg without the need for a medium or heavy lift launch vehicle. The high-energy Photon can also launch as a secondary payload with even greater payload masses to deep-space science targets. This paper describes planetary mission concepts connected to science objectives that leverage Rocket Lab’s deep space mission approach. The high-energy Photon can access various planetary science targets of interest including the cislunar environment, Small Bodies, Mars, Venus, and the Outer Planets. Additional planetary small spacecraft missions with focused investigations are recommended, including dedicated small spacecraft missions that do not rely on launch as a secondary payload. 2. HIGH-ENERGY PHOTON Figure 1: The high-energy The high-energy Photon (Figure 1) is a self-sufficient small spacecraft Photon enables small planetary capable of long-duration interplanetary cruise. Its power system is science missions, including Venus probe missions. conventional, using photovoltaic solar arrays and lithium-polymer secondary batteries. The attitude control system includes star trackers, sun sensors, an inertial measurement unit, three reaction wheels, and a cold-gas reaction control system (RCS). -
The Subsurface Habitability of Small, Icy Exomoons J
A&A 636, A50 (2020) Astronomy https://doi.org/10.1051/0004-6361/201937035 & © ESO 2020 Astrophysics The subsurface habitability of small, icy exomoons J. N. K. Y. Tjoa1,?, M. Mueller1,2,3, and F. F. S. van der Tak1,2 1 Kapteyn Astronomical Institute, University of Groningen, Landleven 12, 9747 AD Groningen, The Netherlands e-mail: [email protected] 2 SRON Netherlands Institute for Space Research, Landleven 12, 9747 AD Groningen, The Netherlands 3 Leiden Observatory, Leiden University, Niels Bohrweg 2, 2300 RA Leiden, The Netherlands Received 1 November 2019 / Accepted 8 March 2020 ABSTRACT Context. Assuming our Solar System as typical, exomoons may outnumber exoplanets. If their habitability fraction is similar, they would thus constitute the largest portion of habitable real estate in the Universe. Icy moons in our Solar System, such as Europa and Enceladus, have already been shown to possess liquid water, a prerequisite for life on Earth. Aims. We intend to investigate under what thermal and orbital circumstances small, icy moons may sustain subsurface oceans and thus be “subsurface habitable”. We pay specific attention to tidal heating, which may keep a moon liquid far beyond the conservative habitable zone. Methods. We made use of a phenomenological approach to tidal heating. We computed the orbit averaged flux from both stellar and planetary (both thermal and reflected stellar) illumination. We then calculated subsurface temperatures depending on illumination and thermal conduction to the surface through the ice shell and an insulating layer of regolith. We adopted a conduction only model, ignoring volcanism and ice shell convection as an outlet for internal heat. -
The Rings and Inner Moons of Uranus and Neptune: Recent Advances and Open Questions
Workshop on the Study of the Ice Giant Planets (2014) 2031.pdf THE RINGS AND INNER MOONS OF URANUS AND NEPTUNE: RECENT ADVANCES AND OPEN QUESTIONS. Mark R. Showalter1, 1SETI Institute (189 Bernardo Avenue, Mountain View, CA 94043, mshowal- [email protected]! ). The legacy of the Voyager mission still dominates patterns or “modes” seem to require ongoing perturba- our knowledge of the Uranus and Neptune ring-moon tions. It has long been hypothesized that numerous systems. That legacy includes the first clear images of small, unseen ring-moons are responsible, just as the nine narrow, dense Uranian rings and of the ring- Ophelia and Cordelia “shepherd” ring ε. However, arcs of Neptune. Voyager’s cameras also first revealed none of the missing moons were seen by Voyager, sug- eleven small, inner moons at Uranus and six at Nep- gesting that they must be quite small. Furthermore, the tune. The interplay between these rings and moons absence of moons in most of the gaps of Saturn’s rings, continues to raise fundamental dynamical questions; after a decade-long search by Cassini’s cameras, sug- each moon and each ring contributes a piece of the gests that confinement mechanisms other than shep- story of how these systems formed and evolved. herding might be viable. However, the details of these Nevertheless, Earth-based observations have pro- processes are unknown. vided and continue to provide invaluable new insights The outermost µ ring of Uranus shares its orbit into the behavior of these systems. Our most detailed with the tiny moon Mab. Keck and Hubble images knowledge of the rings’ geometry has come from spanning the visual and near-infrared reveal that this Earth-based stellar occultations; one fortuitous stellar ring is distinctly blue, unlike any other ring in the solar alignment revealed the moon Larissa well before Voy- system except one—Saturn’s E ring. -
Explore Science
SMALL SATELLITE MISSIONS FOR PLANETARY SCIENCE Carolyn R. Mercer, Ph.D. Program Executive, Small Innovative Missions for Planetary Exploration (SIMPLEx) AIAA Small Spacecraft Missions Conference August 4, 2019 Logan, Utah Apollo 15 Particles and Fields Subsatellite (PFS-1) • 35 kg spacecraft flown with Apollo 15 in 1971 • Orbited the Moon for 6 months • Science mission: • Measured the strength and direction of interplanetary and terrestrial magnetic fields • Detected variations in the lunar gravity field • Measured proton and electron flux 2 NASA SCIENCE AN INTEGRATED PROGRAM Helio- Earth physics Science Planetary Astrophysics Science Joint Agency Satellite Division 4 Small Spacecraft for Planetary Science Astrobiology Science and Technology Instrument Development (ASTID) 2008 • O/OREOS (2010 launch) Small Innovative Missions for Planetary Exploration (SIMPLEx-1) 2014 • LunaH-Map, Q-PACE Directed and Partnered Secondary Payloads • MarCO (2018 launch) • LICIA Cube (2021) – potential ASI contribution Planetary Science Deep Space SmallSat Studies (PSDS3) 2017 • 19 Studies – Presented March 2018 at LPSC Small Innovative Missions for Planetary Exploration (SIMPLEx-2) 2018 • Janus, Escapade, Lunar Trailblazer • Next proposals due no earlier than June 2020 5 Planetary Science Deep Space SmallSat Studies Solicitation requested: • Concepts for planetary science missions • 180 kg total spacecraft mass limit • $100M cost cap • No constraints on rides, infrastructure, etc. Solicitation sought answers to: • Can deep space missions be credibly done