Economic Development of LOW EARTH ORBIT Besha and Macdonald, Editors on the Cover: Fire Acts Differently in Space Than on Earth
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Astrodynamics
Politecnico di Torino SEEDS SpacE Exploration and Development Systems Astrodynamics II Edition 2006 - 07 - Ver. 2.0.1 Author: Guido Colasurdo Dipartimento di Energetica Teacher: Giulio Avanzini Dipartimento di Ingegneria Aeronautica e Spaziale e-mail: [email protected] Contents 1 Two–Body Orbital Mechanics 1 1.1 BirthofAstrodynamics: Kepler’sLaws. ......... 1 1.2 Newton’sLawsofMotion ............................ ... 2 1.3 Newton’s Law of Universal Gravitation . ......... 3 1.4 The n–BodyProblem ................................. 4 1.5 Equation of Motion in the Two-Body Problem . ....... 5 1.6 PotentialEnergy ................................. ... 6 1.7 ConstantsoftheMotion . .. .. .. .. .. .. .. .. .... 7 1.8 TrajectoryEquation .............................. .... 8 1.9 ConicSections ................................... 8 1.10 Relating Energy and Semi-major Axis . ........ 9 2 Two-Dimensional Analysis of Motion 11 2.1 ReferenceFrames................................. 11 2.2 Velocity and acceleration components . ......... 12 2.3 First-Order Scalar Equations of Motion . ......... 12 2.4 PerifocalReferenceFrame . ...... 13 2.5 FlightPathAngle ................................. 14 2.6 EllipticalOrbits................................ ..... 15 2.6.1 Geometry of an Elliptical Orbit . ..... 15 2.6.2 Period of an Elliptical Orbit . ..... 16 2.7 Time–of–Flight on the Elliptical Orbit . .......... 16 2.8 Extensiontohyperbolaandparabola. ........ 18 2.9 Circular and Escape Velocity, Hyperbolic Excess Speed . .............. 18 2.10 CosmicVelocities -
Preface Patrick Besha, Editor Alexander Macdonald, Editor in The
EARLY DRAFT - NASAWATCH.COM/SPACEREF.COM Preface Patrick Besha, Editor Alexander MacDonald, Editor In the next decade, NASA will seek to expand humanity’s presence in space beyond the International Space Station in low-Earth orbit to a new habitation platform orbiting the moon. By the late 2020’s, astronauts will live and work far deeper in space than ever before. The push to cis-lunar orbit is part of a stepping-stone approach to extend our reach to Mars and beyond. This decision to explore ever farther destinations is a familiar pattern in the history of American space exploration. Another major pattern with historical precedent is the transition from public sector exploration to private sector commercialization. After the government has developed and demonstrated a capability in space, whether it be space-based communications or remote sensing, the private sector has realized its market potential. As new companies establish a presence, the government withdraws from the market. In 2015, we are once again at a critical stage in the development of space. The most successful long-term human habitation in space, orbiting the Earth continuously since 1998, is the International Space Station. Currently at the apex of its capabilities and the pinnacle of state-of-the-art space systems, it was developed through the investments and labors of over a dozen nations and is regularly re-supplied by cargo delivery services. Its occupants include six astronauts and numerous other organisms from Earth’s ecosystems from bacteria to plants to rats. Research is conducted on the spacecraft from hundreds of organizations worldwide ranging from academic institutions to large industrial companies and from high-tech start-ups to high-school science classes. -
Electric Propulsion System Scaling for Asteroid Capture-And-Return Missions
Electric propulsion system scaling for asteroid capture-and-return missions Justin M. Little⇤ and Edgar Y. Choueiri† Electric Propulsion and Plasma Dynamics Laboratory, Princeton University, Princeton, NJ, 08544 The requirements for an electric propulsion system needed to maximize the return mass of asteroid capture-and-return (ACR) missions are investigated in detail. An analytical model is presented for the mission time and mass balance of an ACR mission based on the propellant requirements of each mission phase. Edelbaum’s approximation is used for the Earth-escape phase. The asteroid rendezvous and return phases of the mission are modeled as a low-thrust optimal control problem with a lunar assist. The numerical solution to this problem is used to derive scaling laws for the propellant requirements based on the maneuver time, asteroid orbit, and propulsion system parameters. Constraining the rendezvous and return phases by the synodic period of the target asteroid, a semi- empirical equation is obtained for the optimum specific impulse and power supply. It was found analytically that the optimum power supply is one such that the mass of the propulsion system and power supply are approximately equal to the total mass of propellant used during the entire mission. Finally, it is shown that ACR missions, in general, are optimized using propulsion systems capable of processing 100 kW – 1 MW of power with specific impulses in the range 5,000 – 10,000 s, and have the potential to return asteroids on the order of 103 104 tons. − Nomenclature -
AFSPC-CO TERMINOLOGY Revised: 12 Jan 2019
AFSPC-CO TERMINOLOGY Revised: 12 Jan 2019 Term Description AEHF Advanced Extremely High Frequency AFB / AFS Air Force Base / Air Force Station AOC Air Operations Center AOI Area of Interest The point in the orbit of a heavenly body, specifically the moon, or of a man-made satellite Apogee at which it is farthest from the earth. Even CAP rockets experience apogee. Either of two points in an eccentric orbit, one (higher apsis) farthest from the center of Apsis attraction, the other (lower apsis) nearest to the center of attraction Argument of Perigee the angle in a satellites' orbit plane that is measured from the Ascending Node to the (ω) perigee along the satellite direction of travel CGO Company Grade Officer CLV Calculated Load Value, Crew Launch Vehicle COP Common Operating Picture DCO Defensive Cyber Operations DHS Department of Homeland Security DoD Department of Defense DOP Dilution of Precision Defense Satellite Communications Systems - wideband communications spacecraft for DSCS the USAF DSP Defense Satellite Program or Defense Support Program - "Eyes in the Sky" EHF Extremely High Frequency (30-300 GHz; 1mm-1cm) ELF Extremely Low Frequency (3-30 Hz; 100,000km-10,000km) EMS Electromagnetic Spectrum Equitorial Plane the plane passing through the equator EWR Early Warning Radar and Electromagnetic Wave Resistivity GBR Ground-Based Radar and Global Broadband Roaming GBS Global Broadcast Service GEO Geosynchronous Earth Orbit or Geostationary Orbit ( ~22,300 miles above Earth) GEODSS Ground-Based Electro-Optical Deep Space Surveillance -
Orbit and Spin
Orbit and Spin Overview: A whole-body activity that explores the relative sizes, distances, orbit, and spin of the Sun, Earth, and Moon. Target Grade Level: 3-5 Estimated Duration: 2 40-minute sessions Learning Goals: Students will be able to… • compare the relative sizes of the Earth, Moon, and Sun. • contrast the distance between the Earth and Moon to the distance between the Earth and Sun. • differentiate between the motions of orbit and spin. • demonstrate the spins of the Earth and the Moon, as well as the orbits of the Earth around the Sun, and the Moon around the Earth. Standards Addressed: Benchmarks (AAAS, 1993) The Physical Setting, 4A: The Universe, 4B: The Earth National Science Education Standards (NRC, 1996) Physical Science, Standard B: Position and motion of objects Earth and Space Science, Standard D: Objects in the sky, Changes in Earth and sky Table of Contents: Background Page 1 Materials and Procedure 5 What I Learned… Science Journal Page 14 Earth Picture 15 Sun Picture 16 Moon Picture 17 Earth Spin Demonstration 18 Moon Orbit Demonstration 19 Extensions and Adaptations 21 Standards Addressed, detailed 22 Background: Sun The Sun is the center of our Solar System, both literally—as all of the planets orbit around it, and figuratively—as its rays warm our planet and sustain life as we know it. The Sun is very hot compared to temperatures we usually encounter. Its mean surface temperature is about 9980° Fahrenheit (5800 Kelvin) and its interior temperature is as high as about 28 million° F (15,500,000 Kelvin). -
GB-ASTRA 3B-Comsatbw-21Mai V
A BOOST FOR SPACE COMMUNICATIONS SATELLITES For its first launch of the year, Arianespace will orbit two communications satellites: ASTRA 3B for the Luxembourg-based operator SES ASTRA, and COMSATBw-2 for Astrium as part of a contract with the German Ministry of Defense. The choice of Arianespace by leading space communications operators and manufacturers is clear international recognition of the company’s excellence in launch services. Because of its reliability and availability, the Arianespace launch system continues to set the global standard. Ariane 5 is the only commercial satellite launcher now on the market capable of simultaneously launching two payloads. Over the last two decades, Arianespace and SES have developed an exceptional relationship. ASTRA 3B will be the 33rd satellite from the SES group (Euronext Paris and Luxembourg Bourse: SESG) to have chosen the European launcher. SES ASTRA operates the leading direct-to-home TV broadcast system in Europe, serving more than 125 million households via DTH and cable networks. ASTRA 3B was built by Astrium using a Eurostar E 3000 platform, and will weigh approximately 5,500 kg at launch. Fitted with 60 active Ku-band transponders and four Ka-band transponders, ASTRA 3B will be positioned at 23.5 degrees East. It will deliver high-power broadcast services across all of Europe, and offers a design life of 15 years. Astrium chose Arianespace for the launch of two military communications satellites, COMSATBw-1 and COMSATBw-2, as part of a satellite communications system supplied to the German Ministry of Defense. The first satellite in this family, COMSATBw-1, was launched by Arianespace in October 2009. -
Annex 2: Providers Required to Respond (Red Indicates Those Who Did Not Respond Within the Required Timeframe)
Video on demand access services report 2016 Annex 2: Providers required to respond (red indicates those who did not respond within the required timeframe) Provider Service(s) AETN UK A&E Networks UK Channel 4 Television Corp All4 Amazon Instant Video Amazon Instant Video AMC Networks Programme AMC Channel Services Ltd AMC Networks International AMC/MGM/Extreme Sports Channels Broadcasting Ltd AXN Northern Europe Ltd ANIMAX (Germany) Arsenal Broadband Ltd Arsenal Player Tinizine Ltd Azoomee Barcroft TV (Barcroft Media) Barcroft TV Bay TV Liverpool Ltd Bay TV Liverpool BBC Worldwide Ltd BBC Worldwide British Film Institute BFI Player Blinkbox Entertainment Ltd BlinkBox British Sign Language Broadcasting BSL Zone Player Trust BT PLC BT TV (BT Vision, BT Sport) Cambridge TV Productions Ltd Cambridge TV Turner Broadcasting System Cartoon Network, Boomerang, Cartoonito, CNN, Europe Ltd Adult Swim, TNT, Boing, TCM Cinema CBS AMC Networks EMEA CBS Reality, CBS Drama, CBS Action, Channels Partnership CBS Europe CBS AMC Networks UK CBS Reality, CBS Drama, CBS Action, Channels Partnership Horror Channel Estuary TV CIC Ltd Channel 7 Chelsea Football Club Chelsea TV Online LocalBuzz Media Networks chizwickbuzz.net Chrominance Television Chrominance Television Cirkus Ltd Cirkus Classical TV Ltd Classical TV Paramount UK Partnership Comedy Central Community Channel Community Channel Curzon Cinemas Ltd Curzon Home Cinema Channel 5 Broadcasting Ltd Demand5 Digitaltheatre.com Ltd www.digitaltheatre.com Discovery Corporate Services Discovery Services Play -
Configuration Manager User Guide © 2019 Quest Software Inc
Quest® Enterprise Reporter 3.2.1 Configuration Manager User Guide © 2019 Quest Software Inc. ALL RIGHTS RESERVED. This guide contains proprietary information protected by copyright. The software described in this guide is furnished under a software license or nondisclosure agreement. This software may be used or copied only in accordance with the terms of the applicable agreement. No part of this guide may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording for any purpose other than the purchaser’s personal use without the written permission of Quest Software Inc. The information in this document is provided in connection with Quest Software products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Quest Software products. EXCEPT AS SET FORTH IN THE TERMS AND CONDITIONS AS SPECIFIED IN THE LICENSE AGREEMENT FOR THIS PRODUCT, QUEST SOFTWARE ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. IN NO EVENT SHALL QUEST SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, PUNITIVE, SPECIAL OR INCIDENTAL DAMAGES (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION OR LOSS OF INFORMATION) ARISING OUT OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF QUEST SOFTWARE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Quest Software makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. -
Preparation of Papers for AIAA Technical Conferences
DUKSUP: A Computer Program for High Thrust Launch Vehicle Trajectory Design & Optimization Spurlock, O.F.I and Williams, C. H.II NASA Glenn Research Center, Cleveland, OH, 44135 From the late 1960’s through 1997, the leadership of NASA’s Intermediate and Large class unmanned expendable launch vehicle projects resided at the NASA Lewis (now Glenn) Research Center (LeRC). One of LeRC’s primary responsibilities --- trajectory design and performance analysis --- was accomplished by an internally-developed analytic three dimensional computer program called DUKSUP. Because of its Calculus of Variations-based optimization routine, this code was generally more capable of finding optimal solutions than its contemporaries. A derivation of optimal control using the Calculus of Variations is summarized including transversality, intermediate, and final conditions. The two point boundary value problem is explained. A brief summary of the code’s operation is provided, including iteration via the Newton-Raphson scheme and integration of variational and motion equations via a 4th order Runge-Kutta scheme. Main subroutines are discussed. The history of the LeRC trajectory design efforts in the early 1960’s is explained within the context of supporting the Centaur upper stage program. How the code was constructed based on the operation of the Atlas/Centaur launch vehicle, the limits of the computers of that era, the limits of the computer programming languages, and the missions it supported are discussed. The vehicles DUKSUP supported (Atlas/Centaur, Titan/Centaur, and Shuttle/Centaur) are briefly described. The types of missions, including Earth orbital and interplanetary, are described. The roles of flight constraints and their impact on launch operations are detailed (such as jettisoning hardware on heating, Range Safety, ground station tracking, and elliptical parking orbits). -
Small Satellite Launchers
SMALL SATELLITE LAUNCHERS NewSpace Index 2020/04/20 Current status and time from development start to the first successful or planned orbital launch NEWSPACE.IM Northrop Grumman Pegasus 1990 Scorpius Space Launch Demi-Sprite ? Makeyev OKB Shtil 1998 Interorbital Systems NEPTUNE N1 ? SpaceX Falcon 1e 2008 Interstellar Technologies Zero 2021 MT Aerospace MTA, WARR, Daneo ? Rocket Lab Electron 2017 Nammo North Star 2020 CTA VLM 2020 Acrux Montenegro ? Frontier Astronautics ? ? Earth to Sky ? 2021 Zero 2 Infinity Bloostar ? CASIC / ExPace Kuaizhou-1A (Fei Tian 1) 2017 SpaceLS Prometheus-1 ? MISHAAL Aerospace M-OV ? CONAE Tronador II 2020 TLON Space Aventura I ? Rocketcrafters Intrepid-1 2020 ARCA Space Haas 2CA ? Aerojet Rocketdyne SPARK / Super Strypi 2015 Generation Orbit GoLauncher 2 ? PLD Space Miura 5 (Arion 2) 2021 Swiss Space Systems SOAR 2018 Heliaq ALV-2 ? Gilmour Space Eris-S 2021 Roketsan UFS 2023 Independence-X DNLV 2021 Beyond Earth ? ? Bagaveev Corporation Bagaveev ? Open Space Orbital Neutrino I ? LIA Aerospace Procyon 2026 JAXA SS-520-4 2017 Swedish Space Corporation Rainbow 2021 SpinLaunch ? 2022 Pipeline2Space ? ? Perigee Blue Whale 2020 Link Space New Line 1 2021 Lin Industrial Taymyr-1A ? Leaf Space Primo ? Firefly 2020 Exos Aerospace Jaguar ? Cubecab Cab-3A 2022 Celestia Aerospace Space Arrow CM ? bluShift Aerospace Red Dwarf 2022 Black Arrow Black Arrow 2 ? Tranquility Aerospace Devon Two ? Masterra Space MINSAT-2000 2021 LEO Launcher & Logistics ? ? ISRO SSLV (PSLV Light) 2020 Wagner Industries Konshu ? VSAT ? ? VALT -
NASA Expendable Launch Services Current Use of EELV
NASA Expendable Launch Services Current Use of EELV Lynn F. H. Cline Deputy Associate Administrator for Space Operations National Aeronautics and Space Administration June 17, 2009 Overview • NASA’s expendable launch vehicles are run by the Launch Services Program (LSP) consolidated at Kennedy Space Center in 1998 – LSP provides acquisition, technical management, mission integration and launch management • NASA utilizes a mixed fleet of vehicles (small, medium & intermediate) with varying levels of performance used to support a mix of mission sizes – Mainly for Science Mission Directorate payloads, but other NASA Directorates and other government agencies also use NASA launch services – Launches conducted from multiple ranges, including RTS, WFF, Kodiak • Vehicles are selected from the NASA Launch Services Contract (NLS) – Through competition based on mass, orbit, class of payload, and best value – Current NLS contract expires in 2010, RFP released to extend the contract • Most recent contract action purchased four intermediate class missions – TDRS – K & L, RBSP and MMS • Important issues – Loss of Medium Class launch service provider, which has been 50% of NASA missions historically – Compressed manifest – Possibility that NASA incurs a portion of the intermediate class infrastructure costs post 2010 NASA Launch Services Manifest FPB Approved 3/25/09 2009 2010 2011 2012 2013 2014 2015 2016 Release 6/03/09 Rev. 1 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Small Class (SC) NuSTAR (P-XL) -
The Future of Commercial Space in Georgia 19 Oct 2017 AEROSPACE – KEY INDUSTRY for GEORGIA CENTER of INNOVATION for AEROSPACE
The Future of Commercial Space In Georgia 19 Oct 2017 AEROSPACE – KEY INDUSTRY FOR GEORGIA CENTER OF INNOVATION FOR AEROSPACE Our Center’s Mission Provide the technical industry expertise, collaborative research, and partnerships to help the State's aerospace industry to Connect, Compete and Grow globally. Create More Georgia Aerospace Jobs! WHAT IS AEROSPACE? Aerospace Product Economic Life Cycle R&D Testing Mfg Training Operations Maintenance Georgia uses “Aerospace” as inclusive term covering the lifecycle of activities for vehicles that fly in the air or in space. SPACE Vector Aerospace Test • Georgia has a growing space sector, and is home to the following companies: Launch at the Proposed Spaceport Camden • Honeywell Facility (August 3, 2017) • IntelSat • Lockheed Martin Space Systems • SpaceWorks Enterprises • Generation Orbit Launch Services • Blink Astro • Terminal Velocity Aerospace • ViaSat (one of Georgia’s top 20 aerospace employers) • Tyvak • And a number of additional companies support space projects as part of their portfolio • Georgia Tech has a robust space research portfolio • UGA and KSU both also have small satellite programs WE HAVE A GREAT FOUNDATION TO BUILD COMMERCIAL SPACE IN GEORGIA • We have over 800 aerospace companies that add $64B to the economy • 99,000 direct aerospace jobs • Aircraft and aircraft parts are the #1 export by $ in Georgia and have been for 10 years • Georgia is number 3 in aviation MRO, a skill base that transfers to commercial space operations • PriceWaterhouseCoopers named Georgia #1 in