DOCSLIB.ORG

Using Satellites in the Classroom: a Guide for Science Educators

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Using Satellites in the Classroom: a Guide for Science Educators DOCUMENT RESUME ED 162 635 IE 006 582 AUTHOR Davidoff, Martin R. TITLE Using Satellites in the Classrocm: A Guide for Science Educators. INSTITUTION Catcnsville Community Ccll., Md. SPONS AGENCY National Science Foundatior, Washingtcn, D.C. PUB DATE 78 GRANT SED 75-17333 NOTE 234p. AVAILABLE FROM Ms. Julie Forbush, Smithscnian Air 6 Space Museum, Washington, D. C. 20560 (Free, while supply lasts) EDRS PRICE MF-$0.83 HC-$12.71 Plus Postage. DESCRIPTORS *Ccmmunication Satellites; Higher Education; *Radio Technology; Science Activities; *Science Education; Science Experiments; Science Prcjects; *Telecommunication IDENTIFIERS Orbiting Satellite Carrying Amateur Radio; Radio Amateur Satellite Cbrperaticn ABSTRACT The function, design, and ground statics ceguirements of the AMSAT-OSCAR ncn-ccmmercial space satellite system are described, and various experiments designed for direct student participation in space communications are provided in this text primarily written for the science educator. Six chapters include:) (1) an introduction to general satellitecrtit problems and sclutione, (2) a number of trackingmethods_ for ccmputing the positicns of 1 satellites, (3) onboard systems common to most satellites, (4) ai complete descripticn of each of the satellites currently in orbit or planned for the near future, (5) specifics fcr ground stations, and (6) four complete student satellite experiments, 15 detailed prcject outlines, and 19 suggestions for topics and activities. AppendiCes include listings of equipment manufactirers and publishers, as well as a glossary of terms. .(Author/RAO) #31g4g###########*31g#714########*###*######****************7144**714*71444714### * Reproductions supplied by EDRS are the ,best that car be made * * from the original document. * *********************************************************************** USING SATELLITES IN THE CLASSROOM: A GUIDE FOR SCIENCE EDUCATORS U.S. DEPARTMENT OF HEALTH. EDUCATION & WELFARE NATIONAL INSTITUTE OF EDUCATION Martin R. Davidoff, Ph.D. THIS DOCUMENT HAS BEEN REPRO- '. DUCED EXACTLY AS RECEIVED FROM THE PERSON OR ORGANIZATION. ORIGIN- ''ATING IT POINTS OF VIEW OF. JPINIOkS STATED-4:X) NOT NECESSARi'.Y REPRE- SENT OFFICIAL NATIONAL I,1 iTITUTE OF EDUCATION POSITION OR PGL:CY "PERMISSION TO REPRODUCE THIS MATERIAL HAS BEEN GRANTEDBY Martin Davidoff TO THE EDUCATIONAL RESOURCES INFORMATION CENTER (ERIC) AND USERS OF THE ERIC SYSTEM." USING SATELLITES IN THE CLASSROOM: A GUIDE FOR SCIENCE EDUCATORS Martin R. Davidoff, Ph.D. Catonsville Community College Catonsville, Md. 21228 Copyright © Martin Davidoff 1978 Printed in the United States of America. All rights reserved. This book or parts thereof may not be reproduced in any form without permission. The materials contained herein are based in part upon research supported by the National Science Foundation Uhder. Grant Na:-SED 75-17333.-- Any opinions, findings, and conclusions or recommendations expressed in this publication are those of the author and do not necessarily reflect the views of the National Science Foundation or Catonsville Community College. Published by Catonsville Community College. First Edition: 1978 ii Tha book £6 dedicated to the vaanteera mound .the wontd who hetped the OSCAR ptogitam ity. ACKNOWLEDGMENTS This text was made possible by the scientific, financial, and moral\ support of a number of individuals and organizations. The RADIO-AMATEUR-SATELLITE-CORPORATION (AMSAT) built the spacecraft upon which this text is based. Special thanks are due to Mr. Jan King and Dr. Perry Klein for constructively reviewing several drafts of the manuscript.\ The NATIONAL SCIENCE FOUNDATION SCIENCE EDUCATION DIRECTORATE provided funds so that the practical aspects of using satellites in a classroom could be tested. This book was written, produced, and distributed to college level educators as part of project SED 75-17333. The advisory,committee for this project consisted of: Dr. Pier Bargellini, COMSAT Laboratories; Dr. Sajjad Durrani, NASA; Dr. Allen Katz, Trenton State College, NJ; Dr. Perry Klein, AMSAT; Mr. Donald LaSalle, Talcott Mtn. Science Center, Conn.; Mr. William Tynan, Hopkins Applied Physics Laboratory. Special recognition is-also due to the assistance provided by: Catonsville Community College, Md.; The American Radio Relay League tatellite Educational Programs Office; 0 The Smithsonian Air and Space Museum; The National Aeronautida and Space Administration Educational Programs Office. iii CONTENTS Page COMER ORS AND CONSTANTS vi CRAM I. EA IITES: ORBITS AND TRACKING 1-1 1,1 round 1-2 1.2 0 lite Path in Space 1-5 1.3 Sub 'atellite Path on Earth (Ground Track) 1.4 Azimuth, Elevation, Coverage 1-17 1.5 1:%1Aptical Orbits: Selected Topics 1-20 References 1-25 II. TRACKXF AMSAT-OSCAR SATELLITES 2-1 2.1 iLlcoduction 2-1 2.2 Method I: Selected Cities 2-11 2.3 Method II: North Pole Projection Map 2-12 2.4 Method III: Mercator Map 2-18 2.5 Method IV: Azimuthal Equidistant Projection Map . 2-18 2.6 Method V: Globe 2-21 2:7 Method VI: Computer 2 -22, 2.8 Elliptic Orbits and AMSAT Phase III Satellites 223 2,9 Comments 2-29 References 2-29 III. SATELLITE SYSTEMS 3-1 3.1 Satellite. Systems: Overview' 3-1 3.2 Communications, Mission, and Engineering Subsystems . 3-4 Beacons: Function 3-4 Beacons: Design 3-8 Command Links 3-9 Transponders: Function 3-9 Transponders: Design 3-10 Telemetry Systems 3-13 3.3 Structural, Attitude-Control, Propulsion, and Energy-Supply Subsystems 3-15 Structural Subsystem 3-15 Attitude-Control Subsystem 3-15 , Propulsion Subsystem 3-18 Energy-Supply Subsystem 3-19 References 3-22 IV., SATELLITE DESCRIPTIONS 4-1 AMSAT-OSCAR 7. 4-4 AMSAT-OSCAR 8 4-18 -AMSAT-Phase-III-A 4-27. Sciviet RS-1 4-33 Page V. GROUND STATION EQUIPMENT .5-1 5.1 Basic 29 MHz Ground Station ....... , . 5-2 5.2 Receivers .5-3 5.3 .Antenna Basics 5-7 -5:4- Practical Ground Statioh Antennas 5-13 5.5 Station Assembly: General 5-24 5.6 Transmitting Considerations 5-29 References 5-33 VI. EDUCATIONAL EXPERIMENTS AND ACTIVITIES 6-1 6.1 Developing Tracking Data 6-1 Experiment SE 1 :Satellite Tracking ..... 6-2 6.2 Derivation of Tracking Equations-----__--- . 6-5.. Project SP 1: Elevation Angle and Slant Range . 6-6 Project SP 2: Motion in Orbital Plane 6-7 Project. SP 3: Ground Tn.ck 6-8 6.3 Doppler Effect. 6-11 Experiment SE 2: Doppler Effect' 6-12 Project SP 4: Accurate Frequency Measurement 6-19 Project SP 5:-Theoretical Doppler Curves 6-20 Project SP 6: Anomolous Doppler 6-22 6.4 Telemetry Reduction .6-23 Experiment SE 3: Energy Flow in Space 6-24 Experiment SE 4 :Satellite Orientation ..... 6-32 Project SP 7: Solar Cells and Power Budget 6-40 Project SP 8: Measuring the Solar Constant . 6-42 Project SP 9: Determining the Earth's Albedo 6-44 6.5 Propagation 6-46 -Project SP 10: Faraday Rotation 6-46 Project SP 11: Auroral Effects 6-48 Project SP 12: Antipodal Reception 6-48 Project SP 13: Extended Range Reception 6-49 6.6 Satellite System Design 6-51 Project SP 14: Selecting a Satellite Antenna 6 -52 6.7 Satellite Ranging 6-57 Project SP 15: Satellite Ranging 6-57 6.8 Miscellaneous Activities 6-61 SM 1 - SM 20 ........... 6-61 References 6-69 APPENDIX A: Addresses of Equipment Manufacturers, Publishers, Etc. A-1 APPENDIX B: Short Glossary of Terms and Abbreviations A-2 CONVERSION FACTORS -4 Length 1.000 m 3.281 feet = 6.214 x 10 mile (statute) -4 5.396 x 10 mile (nautical) 1.000° of arc at surface. of.earth = 111.2 km 2 Mass 1.000 kg 4= 6.852 x 10 slugs Force 1.000 N = .2248 pounds 1.000 kg (force)-4-4, 2.205 pounds (at surface of earth) CONSTANTS 6 R Mean radius of earth: 6.371 x 10m (3,959st. mile) 6 R Equatorial radius of earth: 6.378 x 10m (3,963 st.mile) eq 24 23 M Mass of earth: 5.98 x 10 kg (4.10 x 10 slugs) G Universal Gravitational Constant: 3 3 ft 6.67 x 10-j". m ; (3.44 x108 2 2 kg-s 3 14 m 16 ft3 GM 3.986 x 10 ( 1.408 x 10 ) S 2 P. Solar constant: 1.38 kwatt/m Cr Stefan-Boltzmann constant: joules 5.67 x10842 K m s Abbreviations Kelvin 'kg = kilogram = meter N = Newton . s = second 7 vi PREFACE TO THE SCIENCE EDUCATOR: The primary objectives of this book are: 1. to show science educators how space satellitesican be used to a) present normal course contentI-ii a new'and intrinsically interesting format and/or b) introduce students to space science; ? to provide educators with complete information needed to assemble a satellite ground station suitable for "live" classroom demonstrations and "hands-on" "real-time" student laboratory exercises; 3. to provide science educators with background material on satellite systems. This text treats the use of a new and exciting tool for science instruction -- multi-million dollar satellites which-are directly available to faculty and students without charge for use in the classroom. Note that this text is not concerned with instructional TV or radio via satellite. vii8 INTRODUCTION The major practical development of the space age has been earth satellites. In the brief period since the launch of Sputnik I (Oct. 4, 1957) space technology has evolved to the point where today, the majority of inter- national telecommunications is handled by satellite [1]. Satellites are also used.to provide daily datalor weather forecasting and environmental monitoring as well as for natural resource assessment, navigation, and instructional TV broadcasting. Satellite parking problems have already developed in some regions of space due_tohe increasing number of satellites' in certain desirable orbits [2]. While.a few science educators pioneered in using early satellites in the classroom, educational applications of satellites never became widespread. Perhaps the main. reason for this is that educational appliCations havealways been a distinctly secondary consideration in the development of most satel- lites.
Load more

Recommended publications
  • Amateur-Satellite Service
    Amateur-Satellite Service 1 26/11/2012 Some facts about the amateur-satellite service • Began in 1961 • Pioneered low-cost satellite technology • First privately funded space satellites • First satellite search & rescue (OSCAR 6 & 7) • First inter-satellite transmissions • Early tele-medicine transmissions • Pioneered distributed engineering 2 26/11/2012 Amateur-satellite organizations (by country) • Argentina AMSAT-LU • Australia AMSAT-Australia • Austria AMSAT-OE • Bermuda AMSAT-BDA • Brazil BRAMSAT • Chile AMSAT-CE • Denmark AMSAT-OZ • Germany AMSAT-DL • Finland AMSAT-OH • France AMSAT-France • Israel AMSAT-Israel • Italy AMSAT-Italia 3 26/11/2012 Amateur-satellite organizations (by country)…continued • Korea KITSAT Project • Mexico AMSAT-Mexico • New Zealand AMSAT-ZL • Qatar AMSAT-Qatar • Japan JAMSAT • North America AMSAT-NA • Russia AMSAT-R • South Africa AMSAT-SA • Spain AMSAT-URE • Sweden AMSAT-Sweden • United Kingdom AMSAT-UK • USA, Canada AMSAT-NA 4 26/11/2012 Co-operation with universities to develop & construct amateur-satellites Amateur satellites have been designed and constructed by university students with the help of local amateurs and amateur-satellite organizations. Some examples: ◊ Stellenbosch University (South Africa) ◊ University of Surrey (UK) ◊ University of Mexico ◊ Weber State University (USA) 5 26/11/2012 Student satellite project 6 26/11/2012 Orbiting Satellite Carrying Amateur Radio (OSCARs) Early satellite projects • April 1959 Concept of a satellite built by and for amateurs • OSCAR I Dec 1961 - Jan 1962,
    [Show full text]
  • Satellite Situation Report
    NASA Office of Public Affairs Satellite Situation Report VOLUME 17 NUMBER 6 DECEMBER 31, 1977 (NASA-TM-793t5) SATELLITE SITUATION~ BEPORT, N8-17131 VOLUME 17, NO. 6 (NASA) 114 F HC A06/mF A01 CSCL 05B Unclas G3/15 05059 Goddard Space Flight Center Greenbelt, Maryland NOTICE .THIS DOCUMENT HAS'BEEN REPRODUCED FROM THE BEST COPY FURNISHED US BY THE SPONSORING AGENCY. ALTHOUGH IT IS RECOGNIZED THAT CERTAIN PORTIONS' ARE ILLEGIBLE, IT IS BEING RELEASED IN THE INTEREST OF MAKING AVAILABLE AS MUCH INFORMATION AS POSSIBLE. OFFICE OF PUBLIC AFFAIRS GCDDARD SPACE FLIGHT CENTER NATIONAL AERONAUTICS AND SPACE ADMINISTRATION VOLUME 17 NO. 6 DECEMBER 31, 1977 SATELLITE SITUATION REPORT THIS REPORT IS PUBLIShED AND DISTRIBUTED BY THE OFFICE OF PUBLIC AFFAIRS, GSFC. GODPH DRgP2 FE I T ERETAO5MUJS E SMITHSONIAN ASTRCPHYSICAL OBSERVATORY. SPACEFLIGHT TRACKING AND DATA NETWORK. NOTE: The Satellite Situation Report dated October 31, 1977, contained an entry in the "Objects Decayed Within the Reporting Period" that 1977 042P, object number 10349, decayed on September 21, 1977. That entry was in error. The object is still in orbit. SPACE OBJECTS BOX SCORE OBJECTS IN ORBIT DECAYED OBJECTS AUSTRALIA I I CANACA 8 0 ESA 4 0 ESRO 1 9 FRANCE 54 26 FRANCE/FRG 2 0 FRG 9 3 INCIA 1 0 INDONESIA 2 0 INTERNATIONAL TELECOM- MUNICATIONS SATELLITE ORGANIZATION (ITSO) 22 0 ITALY 1 4 JAPAN 27 0 NATC 4 0 NETHERLANDS 0 4 PRC 6 14 SPAIN 1 0 UK 11 4 US 2928 1523 USSR 1439 4456 TOTAL 4E21 6044 INTER- CBJECTS IN ORIT NATIONAL CATALOG PERIOD INCLI- APOGEE PERIGEE TQANSMITTTNG DESIGNATION NAME NUMBER SOURCE LAUNCH MINUTES NATION KM.
    [Show full text]
  • [AMSAT-F] ANS Bulletin Francophone 302
    F6HBN-83FR De: [email protected] de la part de JC-Aveni [[email protected]] Envoyé: dimanche 28 octobre 2012 19:58 À: AMSAT- F; Amsat Francophone; Bernard Pidoux; bernard Pidoux Objet: [AMSAT-F] ANS Bulletin Francophone 302 Indicateur de suivi: Assurer un suivi État de l'indicateur: Rouge SB SAT@FRANCA $F-ANS-302-1 ANS bulletin en français 302-1 AMSAT NEWS SERVICE BULLETIN ANS 302 Capture sur Internet et traduction par TK5GH. Information sur l’AMSAT-NA dispo à l’URL : http://www.amsat.org (ou via) AMSAT-NA 850 Sligo Avenue, Suite 600 Silver Spring, Marylet 20910-4703 TEL : 301-589-6062 888-322-6728 FAX : 301-608-3410 Pour s’abonner à la liste du forum voyez à l’URL : http://www.amsat.org/amsat/listserv/menu.html =============================================================== L’ANS est un bulletin hebdomadaire libre d’accès issu de l’AMSAT North America le Radio Amateur Satellite Corporation. Il regroupe toutes les informations des acteurs de cette activité qui partagent le même intérêt pour les projets, les constructions, les lancements, et les opérations sur les satellites radio amateurs. ================================================================ Dans cette édition on trouvera : * Election des directeurs AMSAT 2012 * Fox-1 Satellite en développement * AMSAT News Service a un nouvel éditeur : EMike McCardel, KC8YLD * Japan PRISM Satellite commence son service Ham en AX.25 Store-and-Forward * WS4FSM hôte d'un des plus grand contact ARISS par le nombre d'auditeurs * Raport dispo sur le projet japonnais de sat UNISEC Satellite * 3 cartes FUNcube-2 pour le Clyde Space for UKube-1 Nanosatellite * Corée du Sud, Brésil, Ukraine prêts au vol orbital * NASA Accepte des applications d'élèves pour le HASP Ballon stratos 1 * ARISS Statut du 22 octobre 2012 ANS-302 AMSAT News Service Weekly Bulletins ------------------------------------------------------------------------ AMSAT Board Elects Senior Officers for 2012 Rappel de la liste des Dirigeants importants de la direction de l'AMSAT-NA avant l'ouverture des rencontres du 25 octobre au Symposium.
    [Show full text]
  • Orbital Debris: a Chronology
    NASA/TP-1999-208856 January 1999 Orbital Debris: A Chronology David S. F. Portree Houston, Texas Joseph P. Loftus, Jr Lwldon B. Johnson Space Center Houston, Texas David S. F. Portree is a freelance writer working in Houston_ Texas Contents List of Figures ................................................................................................................ iv Preface ........................................................................................................................... v Acknowledgments ......................................................................................................... vii Acronyms and Abbreviations ........................................................................................ ix The Chronology ............................................................................................................. 1 1961 ......................................................................................................................... 4 1962 ......................................................................................................................... 5 963 ......................................................................................................................... 5 964 ......................................................................................................................... 6 965 ......................................................................................................................... 6 966 ........................................................................................................................
    [Show full text]
  • Navy Space and Astronautics Orientation. INSTITUTION Bureau of Naval Personnel, Washington, D
    DOCUMENT RESUME ED 070 566 SE 013 889 AUTHOR Herron, R. G. TITLE Navy Space and Astronautics Orientation. INSTITUTION Bureau of Naval Personnel, Washington, D. C.; Naval Personnel Program Support Activity, Washington, D. C. REPORT NO NAVPERS- 10488 PUB DATE 67 NOTE 235p. '2 EDRS PRICE MF-$0.65 HC-$9.87 DESCRIPTORS Aerospace Education; AerospaceTechnology; *Instructional Materials; Military Science; *Military Training; Navigatioti; *Post Secondary Education; *Space Sciences; *Supplementary Textbooks; Textbooks ABSTRACT Fundamental concepts of the spatial environment, technologies, and applications are presented in this manual prepared for senior officers and key civilian employees. Following basic information on the atmosphere, solar system, and intergalactic space, a detailed review is included of astrodynamics, rocket propulsion, bioastronautics, auxiliary spacecraft survival systems, and atmospheric entry.Subsequentlythere is an analysis of naval space facilities, and satellite applications, especially those of naval interests, are discussed with a background of launch techniques, spatial data gathering, communications programs ,of)servation techniques, measurements by geodetic and navigation systems. Included is a description of space defense and future developments of both national and international space programs. Moreover, commercial systems are mentioned, such as the 85-pound Early Bird (Intelsat I) Intelsat II series, global Intelsat III series, and Soviet-made elMolnlyan satellites. The total of 29 men and one woman orbiting the earth In-1961-67 are tabulated in terms of their names, flight series, launching dates, orbit designations, or biting periods,. stand-up periods, and extra vehicular activity records. Besides numerous illustrations, a list ofsignificantspace launches and a glossary of special terms are included in the manual appendices along with two tables of frequencybanddesignation.
    [Show full text]
  • Amateurfunk Über Satelliten
    Amateurfunk über Satelliten Matthias Bopp DD1US Ötisheim, den 21.04.2018 Agenda • Geschichte & Überblick • Satellitenbahnen (GEO, MEO, HEO, LEO) • Frequenzbereiche und Betriebsarten • Aktive Amateurfunksatelliten und deren Hörbarkeit • Berechnung der Bahnen von Amateurfunksatelliten • Equipment • Funkbetrieb mit der ISS • Wie geht es weiter ? • Sounds from Space Agenda • Geschichte & Überblick • Satellitenbahnen (GEO, MEO, HEO, LEO) • Frequenzbereiche und Betriebsarten • Aktive Amateurfunksatelliten und deren Hörbarkeit • Berechnung der Bahnen von Amateurfunksatelliten • Equipment • Funkbetrieb mit der ISS • Wie geht es weiter ? • Sounds from Space Historie • Der erste Satellit war Sputnik1 und wurde vor mehr als 60 Jahren am 4. Oktober 1957 von der UdSSR ins All geschickt. • Der erste Amateurfunksatellit war OSCAR-1 (Orbiting Satellite Carrying Amateur Radio) und wurde von einer Gruppe von Funkamateuren in Kalifornien / USA gebaut und am 12. Dezember 1961 gestartet. • Die Raumstation MIR wurde 1986 gestartet und wurde 2001 kontrolliert zum Absturz gebracht. Von dort aus gab es zahlreiche Amateurfunkaktivitäten. • Der Bau der Internationalen Raumstation ISS wurde 1998 begonnen und sie ist bis heute in Betrieb. Von der ISS werden diverse Amateurfunkaktivitäten durchgeführt, insbesondere viele Schulkontakte und diverse Modi wie SSTV und DATV. Quelle: http://www.dd1us.de Amateurfunksatelliten • Funkamateure haben eigene Satelliten. • Bisher wurden ca. 120 Satelliten gestartet, die von Funkamateuren entwickelt , finanziert und gebaut wurden.
    [Show full text]
  • Artificial Earth Satellites Designed and Fabricated by the Johns Hopkins University Applied Physics Laboratory
    SDO-1600 lCL 7 (Revised) tQ SARTIFICIAL EARTH SATELLITES DESIGNED AND FABRICATED 9 by I THE JOHNS HOPKINS UNIVERSITY APPLIED PHYSICS LABORATORY I __CD C-:) PREPARED i LJJby THE SPACE DEPARTMENT -ow w - THE JOHNS HOPKINS UNIVERSITY 0 APPLIED PHYSICS LABORATORY Johns Hopkins Road, Laurel, Maryland 20810 Operating under Contract N00024 78-C-5384 with the Department of the Navv Approved for public release; distributiort uni mited. 7 9 0 3 2 2, 0 74 Unclassified PLEASE FOLD BACK IF NOT NEEDED : FOR BIBLIOGRAPHIC PURPOSES SECURITY CLASSIFICATION OF THIS PAGE REPORT DOCUMENTATION PAGE ER 2. GOVT ACCESSION NO 3. RECIPIENT'S CATALOG NUMBER 4._ TITLE (and, TYR- ,E, . COVERED / Artificial Earth Satellites Designed and Fabricated / Status Xept* L959 to date by The Johns Hopkins University Applied Physics Laboratory. U*. t APL/JHU SDO-1600 7. AUTHOR(s) 8. CONTRACTOR GRANT NUMBER($) Space Department N00024-=78-C-5384 9. PERFORMING ORGANIZATION NAME & ADDRESS 10. PROGRAM ELEMENT, PROJECT. TASK AREA & WORK UNIT NUMBERS The Johns Hopkins University Applied Physics Laboratory Task Y22 Johns Hopkins Road Laurel, Maryland 20810 11.CONTROLLING OFFICE NAME & ADDRESS 12.R Naval Plant Representative Office Julp 078 Johns Hopkins Road 13. NUMBER OF PAGES MyLaurel,rland 20810 235 14. MONITORING AGENCY NAME & ADDRESS , -. 15. SECURITY CLASS. (of this report) Naval Plant Representative Office j Unclassified - Johns Hopkins Road f" . Laurel, Maryland 20810 r ' 15a. SCHEDULEDECLASSIFICATION/DOWNGRADING 16 DISTRIBUTION STATEMENT (of th,s Report) Approved for public release; distribution N/A unlimited 17. DISTRIBUTION STATEMENT (of the abstrat entered in Block 20. of tifferent from Report) N/A 18.
    [Show full text]
  • Paper Session I-A - Risks and Trade-Offs for Unproven Launch Vehicles
    1997 (34th) Our Space Future - Uniting For The Space Congress® Proceedings Success Apr 29th, 2:00 PM Paper Session I-A - Risks and Trade-Offs for Unproven Launch Vehicles Philip Chien Earth News Follow this and additional works at: https://commons.erau.edu/space-congress-proceedings Scholarly Commons Citation Chien, Philip, "Paper Session I-A - Risks and Trade-Offs for Unproven Launch Vehicles" (1997). The Space Congress® Proceedings. 7. https://commons.erau.edu/space-congress-proceedings/proceedings-1997-34th/april-29-1997/7 This Event is brought to you for free and open access by the Conferences at Scholarly Commons. It has been accepted for inclusion in The Space Congress® Proceedings by an authorized administrator of Scholarly Commons. For more information, please contact [email protected]. Risks and Tradeoffs for Unproven Launch Vehicles © Copyright 1997 Philip Chien, Earth News Philip Chien Earth News 252 Barton Blvd #1201 Rockledge, Fl 32955 (407)-639-7138 E-Mail: [email protected] Abstract: AMSAT, The Radio Amateur Satellite Corporation, has launched over 30 amateur radio satellites. Most have flown as piggyback payloads where excess payload capacity was not required. Many have flown as test payloads for new launch vehicles on their test flights. The Phase 3-D satellite is scheduled for launch in the second half of 1997 as the primary payload for the Ariane 502 launch vehicle. This paper will discuss the risks and tradeoffs associated with flying on an unproven launch vehicle, insurance issues, and past successes and failures for those 30 satellites. AMSAT has always relied on the kindness of the aerospace industry.
    [Show full text]
  • Nanosatelliitide Tehnoloogia Arengutrendid
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by DSpace at Tartu University Library TARTU ÜLIKOOL Loodus- ja tehnoloogiateaduskond Füüsika Instituut Erik Kulu Nanosatelliitide tehnoloogia arengutrendid Magistritöö (30 EAP) Juhendaja: Mart Noorma Tartu 2014 SISUKORD 1 Sissejuhatus ........................................................................................................................ 4 2 Metoodika ........................................................................................................................... 6 3 Nanosatelliidid ja nende areng ........................................................................................... 8 3.1 Nanosatelliitide arendamise hetkeseis ....................................................................... 13 3.2 Nanosatelliitide projektide omadused ....................................................................... 16 4 Nanosatelliitide projektide seos haridusega, innovatsiooniga ja teaduse populariseerimisega ................................................................................................................. 18 4.1 Nanosatelliitide hariduslikud aspektid ...................................................................... 18 4.1.1 Hariduslikud projektid ülikoolides .................................................................... 20 4.1.2 Hariduslikud projektid ettevõtetes ..................................................................... 20 4.1.3 Hariduslikud programmid kosmoseagentuurides .............................................
    [Show full text]
  • Project OSCAR Original Board of Directors Around 1960
    Project OSCAR original Board of Directors around 1960 Lance Ginner of Project OSCAR holding OSCAR 1 OSCAR 1 transmitter OSCAR 1 transmitter (bottom) Lance Ginner of Project OSCAR inspecting mount for OSCAR 1 OSCAR 1 launch on Agena rocket Dec. 12, 1961 from Vandenburg AFB Lance Ginner of Project OSCAR constructing OSCAR 2 inside OSCAR 2 OSCAR 1 model on display at National Air and Space Museum (1976) OSCAR 3 transmitter linear power amplifier OSCAR 3 receiver IF section OSCAR 3, launched March 9, 1965 OSCAR 3 mounted in rocket. (launched March 9, 1965) OSCAR 4 team OSCAR 4 was launched Dec. 21, 1965 Inside OSCAR 4 OSCAR 4 mounted in rocket (Launched Dec. 21, 1965) Delivery of Australis-OSCAR 5 to USA First AMSAT Board of Directors (1969) Australis-OSCAR 5 structure Australis-OSCAR 5 electronics Australis-OSCAR 5 checkout Australis-OSCAR 5 on display Australis-OSCAR 5 satellite Mounting Australis-OSCAR 5 in Delta rocket Australis-OSCAR 5 mounted in NASA Delta rocket (launched Jan 23, 1970) Dick Daniels building AMSAT-OSCAR-6 2-to-10-meter Transponder A-O-6 2-to-10-meter transponder schematic diagram A-O-6 2-to-10-meter transponder A-O-6 2-to-10-meter transponder in its enclosure Perry Klein and Jan King testing 2-to-10-meter transponder 2-to-10-meter transponder mounted on AMSAT-OSCAR 6 AMSAT-OSCAR 6 structure AMSAT-OSCAR 6 Morse code telemetry encoder (top) AMSAT-OSCAR 6 Morse code telemetry encoder (bottom) Sample frame of AMSAT-OSCAR-6 Morse Code telemetry data Project Manager Jan King troubleshooting AMSAT-OSCAR 6 AMSAT-OSCAR-6 70-cm
    [Show full text]
  • Radio Amateur Satellites: a Means for Relating the Advances in the Space Program to the Public
    1971 (8th) Vol. 1 Technology Today And The Space Congress® Proceedings Tomorrow Apr 1st, 8:00 AM Radio Amateur Satellites: A Means for Relating the Advances in the Space Program to the Public William I. Dunkerley Assistant Secretary, American Radio Relay League Follow this and additional works at: https://commons.erau.edu/space-congress-proceedings Scholarly Commons Citation Dunkerley, William I., "Radio Amateur Satellites: A Means for Relating the Advances in the Space Program to the Public" (1971). The Space Congress® Proceedings. 2. https://commons.erau.edu/space-congress-proceedings/proceedings-1971-8th/session-10/2 This Event is brought to you for free and open access by the Conferences at Scholarly Commons. It has been accepted for inclusion in The Space Congress® Proceedings by an authorized administrator of Scholarly Commons. For more information, please contact [email protected]. RADIO AMATEUR SATELLITES: A MEANS FOR RELATING THE ADVANCES IN THE SPACE PROGRAM TO THE PUBLIC William I. Dunkerley, Jr. Assistant Secretary American Radio Relay League Newington, Connecticut ABSTRACT Five amateur satellites in the Oscar series have radio amateurs. Membership was composed princi­ been launched. They provide the radio amateur with pally of amateurs professionally engaged as scien­ an opportunity for a direct experience with space tists and engineers in the field of space technology. technology. Schools and educational organizations have used amateur satellites to aid in the instruc­ The initial task of the Oscar Association was the tion of space science. The planned Amsat-Oscar B design and construction of a beacon satellite to spacecraft will involve an organized program to pro­ transmit in a frequency band used by radio amateurs.
    [Show full text]
  • Microspacecraft Secondary Payload Launch
    • SSC97-IX-3 • Microspacecraft Secondary Payload Launch Capabilities • & Mission Possibilities Joel Rademacher • Jet Propulsion Laboratory California Institute of Technology 4800 Oak Grove Drive, MIS 301-485 • Pasadena, CA 91109-8099 818-354-6740 • [email protected] • Kim Leschly Jet Propulsion Laboratory California Institute of Technology • 4800 Oak Grove Drive, MIS 301-485 Pasadena, CA 91109-8099 • 818-354-3201 • [email protected] • Abstract. Worldwide secondary payload launch capabilities and future opportunities have been studied at the Jet Propulsion Laboratory (JPL) as a part of planning future microspacecraft missions. Launch vehicles which have been identified as having near-term secondary payload opportunities for launching microspacecraft include; Delta II, • Ariane 5, Atlas II - Centaur, Space Shuttle, Pegasus, Taurus, HIIA, Molniya, Proton, and Cosmos. Interface requirements and contact information have been identified for these. The secondary payload launch capabilities are summarized and missions which have been proposed or are currently under study are described for some of these • opportunities. Several types of microspacecraft missions can be accomplished with secondary payloads. We have studied several mission concepts at JPL including advanced technology demonstration platforms, a constellation of • climate monitoring microspacecraft, low-cost university technology demonstration platforms, a Medium Earth Orbit (MEO) technology validation platform, and the use of Geosynchronous Transfer Orbit (GTO) for deep space • trajectory missions. Backeround • If a specific launch vehicle is not included in this Data presented in this paper have been taken from paper, it is not to say that a secondary payload • contractor sources, National Aeronautics and Space capability does not exist on that vehicle.
    [Show full text]