DOCSLIB.ORG

Prezentacja Programu Powerpoint

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

Grzegorz Brona 10.11.2017 • Exploration of space now (lecture 101) • How to construct a Polish scientific satellite - example of BRITE constellation (lecture 102) • How to build a satellite for future polish scientific missions (lecture 103) • Possible scientific missions and their outreach (lecture 104) 2 Exploration of space now why ? 3 Space 1.0 Space 2.0 The epoch before space From the Sputnik to flights. The era of great the fall of Soviets. astronomers and naked Constant flow of money eye or telescope but the priotities rather observations. not scientific. Space 3.0 Space 4.0 Era of dinosaurs based Industry in space, on technic from S 2.0. private capital involved, Space shuttles, Hubble, economic optimisation, ISS but also raise of global services, raise of telecomunication national ambitions in satellites. smaller countries. 4 Paradigms of Space 4.0 era: • Space should be affordable not only for big countries and big scientific institutes • A close cooperation between different entities targeting doing research in space, providing new technologies, products and services. • Better, cheaper launchers: 3000-25 000 USD per kg (existing rockets) drops to 2000 USD per kg for reusable Falcon-9 drops to 1500 USD per kg for Falcon Heavy Depending on a mass of a satellite 5 Paradigms of Space 4.0 era: • Use of cheaper electronic component (commercial of the shelf COTS) • Miniaturization of electronics, mechanics, removing some redundance • Outcome: reduction of costs by a factor of hundreds but increase in risk of mission failure • Risk mitigated by redundant units (still cost much lower) • Raise of small satellites operating in space • Problem of space debris 6 Nanosatellite • Open standard • 1-10 kg • 30-50% for instrument • Good for education, Total mass of all objects send some science, testing to space each year Microsatellite • 10-150 kg • 30-50% for instrument • Good for science, constelations (earth observation, telco) and some military Standard satellite • >150 kg • LEO or GEO • Military, big science, telecomunication, EO with great precission 7 Annual SmallSat conference in USA: • 1987 -> 60 participants • 2017 -> 2550 participants • >350 students • >140 lectures • >50 universities represented • Many scientific missions presented Titles of some proceedings: - EQUULEUS: Mission to Earth - Moon Lagrange Point by a 6U Deep Space CubeSat - INCA (Ionospheric Neutron Content Analyzer) - Overview of the TRYAD Project: A Fleet of Two 6U CubeSats for Research on Terrestrial Gamma Ray Flashes - Calibrating the Swarm: Networked Small Satellite Magnetometers for Auroral Plasma Science - Tracking the Untraceable, Keeping the Earth Cool - Fugitive Methane Detection from Microsat Constellations - Sun Radio Interferometer Space Experiment (SunRISE) Proposal: Status Update - The Asteroid Probe Experiment (APEX) Mission The topic of small satellites attracts a lot of attention worldwide. 8 How to construct a Polish scientific satellite – example of BRITE constellation (input from T. Zawistowski, M. Stolarski, A. Pigulski) 9 BRIght Target Explorer (BRITE) • Constellation of 6 nanosatellites • Size 20x20x20 cm • Mass 7 kg • Equiped with a telescope of 3 cm diameter • With uncooled CCD • In space from 2013-2014 BRITE - PL LEM HEWELIUSZ 10 To study bright variable stars • Photometry from the orbit – no atmospheric distortions • Bright stars – easy comparison with existing spectroscopic results • In case of combination of spectroscopic and photometric results for binary systems -> masses and radii available • For bright stars light extinction not important • 3 satellites use red filter, 3 satellites use blue filter 11 A constellation of 5 nanosatellites: BRITE-Austria (BAb) 25.02.2013 UniBRITE (UBr) 25.02.2013 Lem (BLb) 21.11.2013 Heweliusz (BHr) 19.08.2014 BRITE-Montréal (BMb) 19.06.2014 Failed BRITE-Toronto (BTr) 19.06.2014 10 000 M USD 5 M USD Resonable price for a nanosatellite: 1 M USD Non-stop coverage of FOV Bright stars are too bright for big space telescopes eg. Hubble 12 Assembly, integration and Test (AIT) at Space Research Center Subsystems: • On-board computer (OBC) • Magnetometer, sun sensors star tracker - Attitude and orbital control system (AOCS) sensors • Reaction wheels – AOCS actuators • S-Band antenna – tranceiver module (TRxM) system • Solar cells, power distribution system – power dystribution unit (PSU) • Mechanical structure • Harness (cables) • Instruments - payload 13 Star-Tracker: an optical device that measures the positions of stars using a camera. FOV 15° x 20.2°, Aptina MT9P031, Monochrome 5M CMOS 59 x 56 x 31.5 mm, Mass ~90g, Up to 5.75 mag, 3746 stars in catalog, 2.1 milion triangles On-board computer (OBC): a brain of a satellite with main tasks: • Receive and respond to commands from the ground station as well as handle the general housekeeping of the satellite. • Collect the telemetry data, format and encode the data for transmitting to the ground station. • Attitude determination and control using data from sensors. • Monitors temperature of all subsystems and maintains the satellite in specified temperature. • Store payload and telemetry data during non-visible period for transmission during visibility. Based on CPU ARM 7 Texas Instruments. 20MIPS. 32MB RAM (EDAC), 256MB Flash. 14 Payload - telescope CCD chip: KODAK KAI-11002-M 11 Mega pixels with organisation 4008x2672 Telescope electronics CCD chip Set of lenses Blende and filters Support mechanics Reaction wheels: for attitude control without using fuel for rockets or other reaction devices. They are particularly useful when the spacecraft must be rotated by very small amounts, such as keeping a telescope pointed at a star. 3 orthogonal reaction wheels from Sinclaire Interplanetary: 5x5x4cm, masa 185g, nominal power 100mW Other device magnetorquer - built from electromagnetic15 coils 1 step: virtual model of the satellite, including information on cabling 2 step: flat-sat or a satellite on a board, testing all subsystems interactions 3 step: integration of the satellite according to long and boring procedures, no failure acceptable 16 1 test: shaking tests, checking if the satellite will survive start of the rocket, shaking can unscrew screws. Each rocket has its own set of critical frequencies and accelerations: 2 test: vacuum thermal tests (termal vacuum chamber – the only one in Poland in SRC!). What will happen if there is some air in the material structure of the satellite – outgasing! Where the heat goes in the vacuum environment? 3 test: what is the best idea to test star-tracker? 17 Dragon: orbital deployer for BRITE-PL HEWELIUSZ Designed and build at SRC in Poland Securs the rocket from problems with the satellite Safely delivers satellite to orbit LEM was launched on DNIEPR rocket (21.11.13), former balistic missile which retired after START II treaty (DubaiSat-2, STSAT-3, SkySat1, WNISAT-1, ApizeSat-7, AprizeSat-8, UniSat-5, Delfi-n3xt, Dove 3, Dove 4, Triton 1, KHISat-1, KHUSat-2, CubeBug2, GOMX-1, NEE-02, FUNCube-1, HINCube, ZACube, Icube-1, HumSat-D, PUCPSat-1, Pocket-PUCP, UWE-3, BeakerSat1, QubeScout1, WREN, 50Sat, First-Move, Velox-P2, OPTOS, BPA-3) HEWELIUSZ was lunched on Long March rocket (19.08.14) 18 For HEWELIUSZ: Low Earth Sun-synchronous orbit (a nearly polar orbit around Earth in which the satellite passes over any given point of the planet's surface at the same local solar time) 630 km with orbit period 101 minutes Ground control station: In Canada near Toronto, In Austria near Graz On the roof of Nicolaus Copernicus Astronomical Center in Warsaw 19 BRITE field: • „Naked eye” astronomy: brightness < 6.5 mag • The faintest star observed: 6.98 mag • Brightest star: -0.73 mag (Canopus) • FOV approximately 25° • Fields observed: 24 • Average number of stars per field: 27 • Total number of stars observed: 500 • Typical observation time: 5.5 months • Change treshold: 0.1-0.2 mmag 6 • All data points: > 34 x 10 20 β Cephei type stars: variable stars that exhibit small rapid variations in their brightness due to pulsations of the stars' surfaces, thought due to the unusual properties of iron at temperatures of 200,000 K in their interiors. 123 stars of this type observed. New modes detected for almost all observed stars: eg. for β Centauri 19 new modes are found with BRITE Data. New β Cephei-type stars have been found: eg. α Cru, δ Pic, π Sco Data on intenal rotation of the stars and internal structure Astro-seismography Pigulski et al. (2016) Pigulski 21 • More than 202 of the stars analysed are spectroscopic binaries stars (spectral lines in the light emitted from each star shifts first towards the blue, then towards the red, as each moves first towards us, and then away from us). • More than 256 are members of visual binary systems (for some visual orbits available). • More than 32 are eclipsing binaries systems (for these data from BRITE provide excelent photometry). New eclipsing binaries found: τ Lib Some of the binary stars have also pulsating component Pigulski et al. Pigulski eclipsing: δ Pic, V Pup, π Sco, λ Sco, spectroscopic: V389 Cyg, α Cru, β Cru, β Cen visual: β Cen, ζ Ori 22 How to build a satellite for future polish scientific missions 23 • BRITE constellation proved that small satellites can deliver useful data • Construction of nanosatellites and microsatellites are in the reach of polish entities • What shall be the next step? HyperSat platform, a multifunction and multimission satellite platform for future space missions. • The basic module dimension 30x30x10 cm • The basic module mass 10 kg • All subsystems
Recommended publications
  • Cubesat Data Analysis Revision

    Cubesat Data Analysis Revision

    371-XXXXX Revision - CubeSat Data Analysis Revision - November 2015 Prepared by: GSFC/Code 371 National Aeronautics and Goddard Space Flight Center Space Administration Greenbelt, Maryland 20771 371-XXXXX Revision - Signature Page Prepared by: ___________________ _____ Mark Kaminskiy Date Reliability Engineer ARES Corporation Accepted by: _______________________ _____ Nasir Kashem Date Reliability Lead NASA/GSFC Code 371 1 371-XXXXX Revision - DOCUMENT CHANGE RECORD REV DATE DESCRIPTION OF CHANGE LEVEL APPROVED - Baseline Release 2 371-XXXXX Revision - Table of Contents 1 Introduction 4 2 Statement of Work 5 3 Database 5 4 Distributions by Satellite Classes, Users, Mass, and Volume 7 4.1 Distribution by satellite classes 7 4.2 Distribution by satellite users 8 4.3 CubeSat Distribution by mass 8 4.4 CubeSat Distribution by volume 8 5 Annual Number of CubeSats Launched 9 6 Reliability Data Analysis 10 6.1 Introducing “Time to Event” variable 10 6.2 Probability of a Successful Launch 10 6.3 Estimation of Probability of Mission Success after Successful Launch. Kaplan-Meier Nonparametric Estimate and Weibull Distribution. 10 6.3.1 Kaplan-Meier Estimate 10 6.3.2 Weibull Distribution Estimation 11 6.4 Estimation of Probability of mission success after successful launch as a function of time and satellite mass using Weibull Regression 13 6.4.1 Weibull Regression 13 6.4.2 Data used for estimation of the model parameters 13 6.4.3 Comparison of the Kaplan-Meier estimates of the Reliability function and the estimates based on the Weibull regression 16 7 Conclusion 17 8 Acknowledgement 18 9 References 18 10 Appendix 19 Table of Figures Figure 4-1 CubeSats distribution by mass ....................................................................................................
  • The 2009 Mars Telecom Orbier Mission

    The 2009 Mars Telecom Orbier Mission

    The 2009 Mars Telecom Orbiter Mission1,2 Stephen F. Franklina, John P. Slonski, Jr.a, Stuart Kerridgea, Gary Noreena, Joseph E. Riedela, Tom Komareka, Dorothy Stosica, Caroline Rachoa, Bernard Edwardsb, Don Borosonc a-Jet Propulsion Laboratory, California Institute of Technology; Pasadena, Ca. 91109; b-NASA Goddard Spaceflight Center, Greenbelt, Md. 20771 USA c-MIT-Lincoln Laboratory, Lexington, Ma, 02420 Abstract—This paper provides an overview of the Mars Mission and flight system requirements have been written. Telecom Orbiter (MTO) mission, and is an update to the The flight system requirements define the flight system paper presented at last year’s conference. Launched in performance and functionality to the competing system 2009, MTO will provide Mars-to-Earth relay services for contract proposers. NASA missions arriving at Mars between 2010 and 2020, enabling far higher science data return and lowering the A Rendezvous and Autonomous Navigation (RAN) telecom and operations costs for these missions. MTO demonstration has been added. An orbiting sample canister carries an optical communications payload, which will will be released and tracked by the ground using on-board demonstrate downlink bit rates from 1 Mbps up to and cameras. The spacecraft will then rendezvous with the possibly exceeding 30 Mbps. MTO will also demonstrate canister using its autonomous navigation capability, coming the ability to autonomously navigate, and to search for and to within ten meters of (but not capturing) the canister. This rendezvous with an orbiting sample, in preparation for operation demonstrates capabilities that the proposed NASA NASA’s proposed Mars Sample Return Mission. A to-be- Mars Sample Return orbiter will require to capture the Mars defined science instrument will also be carried.
  • Short-Term Variability and Mass Loss in Be Stars I

    Short-Term Variability and Mass Loss in Be Stars I

    A&A 588, A56 (2016) Astronomy DOI: 10.1051/0004-6361/201528026 & c ESO 2016 Astrophysics Short-term variability and mass loss in Be stars I. BRITE satellite photometry of η and μ Centauri D. Baade1, Th. Rivinius2, A. Pigulski3,A.C.Carciofi4, Ch. Martayan2,A.F.J.Moffat5,G.A.Wade6,W.W.Weiss7, J. Grunhut1, G. Handler8,R.Kuschnig9,7,A.Mehner2,H.Pablo5,A.Popowicz10,S.Rucinski11, and G. Whittaker11 1 European Organisation for Astronomical Research in the Southern Hemisphere (ESO), Karl-Schwarzschild-Str. 2, 85748 Garching, Germany e-mail: [email protected] 2 European Organisation for Astronomical Research in the Southern Hemisphere (ESO), Casilla 19001, Santiago 19, Chile 3 Astronomical Institute, Wrocław University, Kopernika 11, 51-622 Wrocław, Poland 4 Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão 1226, Cidade Universitária, 05508-900 São Paulo, SP, Brazil 5 Département de physique and Centre de Recherche en Astrophysique du Québec (CRAQ), Université de Montréal, CP 6128, Succ. Centre-Ville, Montréal, Québec, H3C 3J7, Canada 6 Department of Physics, Royal Military College of Canada, PO Box 17000, Stn Forces, Kingston, Ontario K7K 7B4, Canada 7 Institute of Astronomy, University of Vienna, Universitätsring 1, 1010 Vienna, Austria 8 Nicolaus Copernicus Astronomical Center, ul. Bartycka 18, 00-716 Warsaw, Poland 9 Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T1Z1, Canada 10 Institute of Automatic Control, Silesian University of Technology, Gliwice, Poland 11 Department of Astronomy & Astrophysics, University of Toronto, 50 St. George St, Toronto, Ontario, M5S 3H4, Canada Received 21 December 2015 / Accepted 1 February 2016 ABSTRACT Context.
  • The History Problem: the Politics of War

    The History Problem: the Politics of War

    History / Sociology SAITO … CONTINUED FROM FRONT FLAP … HIRO SAITO “Hiro Saito offers a timely and well-researched analysis of East Asia’s never-ending cycle of blame and denial, distortion and obfuscation concerning the region’s shared history of violence and destruction during the first half of the twentieth SEVENTY YEARS is practiced as a collective endeavor by both century. In The History Problem Saito smartly introduces the have passed since the end perpetrators and victims, Saito argues, a res- central ‘us-versus-them’ issues and confronts readers with the of the Asia-Pacific War, yet Japan remains olution of the history problem—and eventual multiple layers that bind the East Asian countries involved embroiled in controversy with its neighbors reconciliation—will finally become possible. to show how these problems are mutually constituted across over the war’s commemoration. Among the THE HISTORY PROBLEM THE HISTORY The History Problem examines a vast borders and generations. He argues that the inextricable many points of contention between Japan, knots that constrain these problems could be less like a hang- corpus of historical material in both English China, and South Korea are interpretations man’s noose and more of a supportive web if there were the and Japanese, offering provocative findings political will to determine the virtues of peaceful coexistence. of the Tokyo War Crimes Trial, apologies and that challenge orthodox explanations. Written Anything less, he explains, follows an increasingly perilous compensation for foreign victims of Japanese in clear and accessible prose, this uniquely path forward on which nationalist impulses are encouraged aggression, prime ministerial visits to the interdisciplinary book will appeal to sociol- to derail cosmopolitan efforts at engagement.
  • Starttabelle 2013 2013-01A 2013-01B 2013-01C 2013-02A 2013-02B 2013-03A 2013-04A NOA-01 2013-05A 2013-05B 2013-05C 2013-05D 2013-05E 2013-05F 2013-06A 2013-06B

    Starttabelle 2013 2013-01A 2013-01B 2013-01C 2013-02A 2013-02B 2013-03A 2013-04A NOA-01 2013-05A 2013-05B 2013-05C 2013-05D 2013-05E 2013-05F 2013-06A 2013-06B

    Raumfahrer.net Starttabelle 2013 Bahnnähe Bahnferne Inklination LandLandLand bzw.bzw.bzw. WiederWieder---- COSPAR Satellit StartStartStart (GMT) Trägerrakete Startort Umläuft Bemerkungen Bemannt (km)(km)(km) (km)(km)(km) (Grad) Organisation eintritt 2013-01A Kosmos 2482 15.01.2013 Rokot Plesezk 1.484 1.523 82,504 Erde Russland - Militärischer Datenrelais- Nein (Strela-3M 4) 16.25 satellit 2013-01B Kosmos 2483 15.01.2013 Rokot Plesezk 1.485 1.510 82,505 Erde Russland - Militärischer Datenrelais- Nein (Strela-3M 5) 16.25 satellit 2013-01C Kosmos 2484 15.01.2013 Rokot Plesezk 1.484 1.523 82,504 Erde Russland - Militärischer Datenrelais- Nein (Strela-3M 6) 16.25 satellit 2013-02A IGS-Radar 4 27.01.2013 H2-A Tanegashima 480 500 97 Erde Japan - Radar-Aufklärungssatellit Nein 4.40 2013-02B IGS-Optik 5V 27.01.2013 H2-A Tanegashima 480 500 97 Erde Japan - Optischer Aufklärungs- Nein 4.40 satellit 2013-03A STSat 2C 30.01.2013 Naro 1 Naro-Raumfahrt- 304 1.509 80,275 Erde Südkorea - Forschungs- und Technolo- Nein 7.00 zentrum giesatellit; ca. 100 kg 2013-04A TDRS K 31.01.2013 Atlas 5 Cape Canaveral 35.744 35.845 6,998 Erde USA - Bahnverfolgungs- und Nein 1.48 Datenrelaissatellit; 3.454 kg NOA-01 Intelsat 27 01.02.2013 Zenit 3 Sea-Launch-Plattform - - - - USA - Fehlfunktion der ersten Nein 7.56 Stufe und Absturz 2013-05A Globalstar M78 06.02.3013 Sojus 2 Baikonur 1.420 1.421 52,004 Erde USA - Sprach- und Datenkommu- Nein 16.04 nikationssatellit; 700 kg 2013-05B Globalstar M93 06.02.3013 Sojus 2 Baikonur 1.420 1.421 51,980 Erde USA - Sprach- und Datenkommu-
  • Changes to the Database Document

    Changes to the Database Document

    Additions and Deletions for the 12-1-18 Release This version of the Database includes launches through November 30, 2018. There are currently 1,957 active satellites in the database. The changes to this version of the database include: • The addition of 141satellites • The deletion of 71 satellites • The addition of and corrections to some satellite data Satellites Removed Echostar-1 – 1995-073A Palapa C2 -- 1996-030A Measat-2 – 1996-063B Iridium 12 – 1997-030B Iridium 10 – 1997-030D Iridium 15 – 1997-034A Iridium 18 -- 1997-034D ABS-3 -- 1997-042A Iridium 25 – 1997-043B Iridium 37 – 1997-056D Iridium 41 – 1997-069B JCSat-1B – 1997-075A Iridium 47 – 1997-082C Globalstar FM4 – 1998-008B Iridium 52 – 1998-010A Iridium 56 – 1998-010B Iridium 50 – 1998-010D Iridium 53 – 1998-010E Iridium 62 -- 1998-021A Iridium 65 – 1998-021D Iridium 66 – 1998-021E Iridium 67 – 1998-021F Iridium 68 – 1998-021G Iridium 72 – 1998-032B Iridium 75 – 1998-032E Iridium 76 – 1998-048B Iridium 81 – 1998-051B Iridium 80 – 1998-051C Iridium 86 – 1998-066B Iridium 84 – 1998-066D Iridium 83 – 1998-066E Dove 2e-1 – 1998-067JD Dove 2e-5 – 1998-067JN Dove 2ep-5 – 1998-067JR Dove 2ep-14 – 1998-067KJ Dove 2ep-15 – 1998-067KL Dove 2ep-17 – 1998-067KN Dove 2ep-18 – 1998-067KM Dove 23p-20 – 1998-067KP Dove 2ep-19 – 1998-067KQ Lemur-2F20 -- 1998-067LD i-INSPIRE-2 – 1998-067ML Tomsk-TPU-120 -- 1998-067MZ Tanyusha 1 -- 1998-067NA Tanyusha 2 -- 1998-067NB TNS-0-2 Nanosputnik -- 1998-067ND SIMPL – 1998-067NF Iridium 20A – 1998-074A Iridium 11A – 1998-074B Globalstar M023 – 1999-004A
  • The US Response to China's ASAT Test

    The US Response to China's ASAT Test

    Air University Allen G. Peck, Lt Gen, Commander Air Force Research Institute John A. Shaud, Gen, PhD, USAF, Retired, Director School of Advanced Air and Space Studies Gerald S. Gorman, Col, PhD, Commandant John B. Sheldon, PhD, Thesis Advisor AIR UNIVERSITY AIR FORCE RESEARCH INSTITUTE The US Response to China’s ASAT Test An International Security Space Alliance for the Future ANTHONY J. MASTALIR Lieutenant Colonel, USAF Drew Paper No. 8 Air University Press Maxwell Air Force Base, Alabama 36112-5962 August 2009 Muir S. Fairchild Research Information Center Cataloging Data Mastalir, Anthony J. The US response to China’s ASAT test : an international security space alliance for the future / Anthony J. Mastalir. p. ; cm. – (Drew paper, 1941-3785 ; no. 8) Includes bibliographical references. ISBN 978-1-58566-197-8 1. Astronautics—International cooperation. 2. Astronautics and civilization. 3. Astronautics and state. 4. United States—Foreign relations—China. 5. China— Foreign relations—United States. 6. Anti-satellite weapons—China. I. Title. II. Series. 333.94—dc22 Disclaimer Opinions, conclusions, and recommendations expressed or implied within are solely those of the author and do not necessarily represent the views of Air University, the United States Air Force, the Department of Defense, or any other US government agency. Cleared for public release: distribution unlimited. This Drew Paper and others in the series are available electronically at the Air University Research Web site http://research.maxwell.af.mil and the AU Press Web site http://aupress.au.af.mil. ii The Drew Papers The Drew Papers are occasional publications sponsored by the Air Force Research Institute (AFRI), Maxwell AFB, Alabama.
  • In This Issue

    In This Issue

    Vol. 39 No.3, December 2013 Editor: Jos Heyman FBIS In this issue: Satellite Update 3 Cancelled Projects: SLOMAR 4 News Artemis 2 Baikonour 3 Chang'e-3 6 Cygnus-2 3 Dnepr 1 9 Dreamchaser 6 DX-1 11 EDRS-C 2 FUEGO 6 GSat-15 3 GSat-16 3 Hylas 2 Made in Russia 7 Minotaur 1 7 O3b 6 OASIS 4 Phoenix 7 Planck 3 SkySat-1 and -2 2 Tiangong-4 11 Vega 7 VEX 3 OASIS Node-1 (courtesy Space Times) TIROS SPACE INFORMATION SkySat-1 and -2 86 Barnevelder Bend, Southern River WA 6110, Australia Tel + 61 8 9398 1322 (e-mail: [email protected]) The Tiros Space Information (TSI) - News Bulletin is published to promote the scientific exploration and commercial application of space through the dissemination of current news and historical facts. In doing so, Tiros Space Information continues the traditions of the Western Australian Branch of the Astronautical Society of Australia (1973-1975) and the Astronautical Society of Western Australia (ASWA) (1975-2006). The News Bulletin can be received worldwide by e-mail subscription only. Subscriptions can be requested by sending an e-mail address to [email protected]. Tiros Space Information reserves the right to refuse any subscription request without the need to provide a reason. All opinions expressed are those of the authors and do not necessarily reflect the opinions of the Editor or Tiros Space Information. All material contained in this publication may be reproduced provided due acknowledgment is made. Calling card... In a recent article that I drafted for the on-line Sat Magazine, I predicted that by the end of this calendar year a total of 192 satellites were to have been launched, the highest ever for a single year since spaceflight began in 1957.
  • The Future of Cubesat Communications

    The Future of Cubesat Communications

    Upcoming CubeSat Launches: The Flood Has Arrived Bryan Klofas KF6ZEO SRI International [email protected] AMSAT-NA Symposium Houston, Texas 1 November 2013 Upcoming CubeSat Launches Name Vehicle Deployers Date # CS # PQ ORS-3/ELaNa-4 Minotaur 1 8 P-POD/8 NLAS 19 Nov 2013 24 (2 CubeStack) ISS ISS/HTV-4 2 J-SSOD 20 Nov 2013 4 Dnepr Dnepr 9 ISIPOD 21 Nov 2013 18 5 UniSat-5 NROL-39/ELaNa-2 Atlas V 8 P-POD 5 Dec 2013 12 (NPSCuL) ISS ISS/Antares 16 NanoRacks 6U Dec 2013 28+ Soyuz Soyuz 1 ISIPOD Feb 2014 1 Dnepr Dnepr 3 P-POD April 2014 3+ ORS-4 Super Strypi 8 NLAS April 2014 10+ (1 CubeStack) Totals: 100+ 5 Slide 2 Statistics of Upcoming Four Launches • 63 CubeSats and PocketQubs (discussed in paper) – Exact frequencies and services listed if known • 9 satellites using 145 MHz amateur satellite band for downlink – 2 under experimental license (DragonSat-1, CAPE-2) – 7 under amateur satellite service (non-US) • 31 satellites using 437 MHz amateur satellite band for downlink – 23 under experimental license (US) – 8 under amateur-satellite service (non-US) • 4 satellites using 2.2 GHz for downlink • 12 satellites using unpublished frequencies • Remaining 8 satellites using 402, 425, 915, 980 MHz Slide 3 Frequency Licensing • FCC released “Guidance on Obtaining Licenses for Small Satellites” DA-13-445 – Clarifies the licensing process and rules related to small satellites – Does not provide guidance on which service to use • Separately, the FCC is pushing non-amateur CubeSats to file for experimental licenses, even if they are using amateur frequencies
  • DRAGON - 8U Nanosatellite Orbital Deployer

    DRAGON - 8U Nanosatellite Orbital Deployer

    DRAGON - 8U Nanosatellite Orbital Deployer Marcin Dobrowolski*, Jerzy Grygorczuk*Â ÃB_*, Marta Tokarz* and Maciej Borys* Abstract The Space Research Centre of the Polish Academy of Sciences (SRC PAS) together with Astronika company have developed an Orbital Deployer called DRAGON for ejection of the Polish scientific nanosatellite BRITE-PL Heweliusz (Fig. 1). The device has three unique mechanisms including an adopted and scaled lock and release mechanism from the ESA Rosetta mission MUPUS instrument. This paper discusses major design restrictions of the deployer, unique design features, and lessons learned from development through testing. Introduction BRITE Constellation is a group of scientific nanosatellites whose purpose is to study oscillations in the light intensity of the most luminous stars (brighter than magnitude +3.5) in our galaxy. The observations will have a precision at least 10 times better than achievable using ground-based observations. The BRITE (BRight Target Explorer) mission formed by Austria, Canada and Poland will send to space a constellation of six nanosatelites, two from each country. BRITE-PL satellite is based on the Generic Nanosatellite Bus (GNB) from the Canadian SFL/UTIAS (Space Flight Laboratory / University of Toronto, Institute for Aerospace Studies). The spacecraft are to use the SFL XPOD (Experimental Push Out Deployer) as a separation system. Figure 1. DRAGON Orbital Deployer and BRITE-PL Heweliusz Spacecraft (in a safety box) * Space Research Centre of the Polish Academy of Sciences, Warsaw, Poland ! " # 487 The first scientific satellite, BRITE-PL Lem, is a modified version of the original SFL design. The second one, BRITE-PL Heweliusz, has the significant changes – it carries additional technological experiments implemented by SRC PAS.
  • Prototype Design and Mission Analysis for a Small Satellite Exploiting Environmental Disturbances for Attitude Stabilization

    Prototype Design and Mission Analysis for a Small Satellite Exploiting Environmental Disturbances for Attitude Stabilization

    Calhoun: The NPS Institutional Archive Theses and Dissertations Thesis and Dissertation Collection 2016-03 Prototype design and mission analysis for a small satellite exploiting environmental disturbances for attitude stabilization Polat, Halis C. Monterey, California: Naval Postgraduate School http://hdl.handle.net/10945/48578 NAVAL POSTGRADUATE SCHOOL MONTEREY, CALIFORNIA THESIS PROTOTYPE DESIGN AND MISSION ANALYSIS FOR A SMALL SATELLITE EXPLOITING ENVIRONMENTAL DISTURBANCES FOR ATTITUDE STABILIZATION by Halis C. Polat March 2016 Thesis Advisor: Marcello Romano Co-Advisor: Stephen Tackett Approved for public release; distribution is unlimited THIS PAGE INTENTIONALLY LEFT BLANK REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704–0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instruction, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302, and to the Office of Management and Budget, Paperwork Reduction Project (0704-0188) Washington, DC 20503. 1. AGENCY USE ONLY 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED (Leave blank) March 2016 Master’s thesis 4. TITLE AND SUBTITLE 5. FUNDING NUMBERS PROTOTYPE DESIGN AND MISSION ANALYSIS FOR A SMALL SATELLITE EXPLOITING ENVIRONMENTAL DISTURBANCES FOR ATTITUDE STABILIZATION 6. AUTHOR(S) Halis C. Polat 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING Naval Postgraduate School ORGANIZATION REPORT Monterey, CA 93943-5000 NUMBER 9.
  • The Upside of Irrationality

    The Upside of Irrationality

    2011 IEEE Aerospace Conference Big Sky, Montana, USA 5-12 March 2011 Pages 1-767 IEEE Catalog Number: CFP11AAC-PRT ISBN: 978-1-4244-7350-2 1 / 6 TABLE OF CONTENTS The Upside of Irrationality................................................................................................................................................................................1 Dan Ariely A Quest for Unification......................................................................................................................................................................................3 Garrett Lisi What Could Happen When Invisible Information is the Starting Point of Acting, Reacting…Communicating?..................................5 Sissel Tolaas The Galactic Center – Uncovering the Pulse of our Galaxy.........................................................................................................................7 Andrea Ghez The NRC Planetary Decadal Survey................................................................................................................................................................9 Steven W. Squyres Do Bacteria in the Clouds Cause Rain? .........................................................................................................................................................11 David Sands The Solar Dynamics Observatory: Your Eye on the Sun ...........................................................................................................................13 W. Dean Pesnell Spinning