HISTORY of ON-ORBIT SATELLITE FRAGMENTATIONS 14 Edition
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
General Assembly Distr.: General 29 January 2001
United Nations A/AC.105/751/Add.1 General Assembly Distr.: General 29 January 2001 Original: English Committee on the Peaceful Uses of Outer Space National research on space debris, safety of space objects with nuclear power sources on board and problems of their collisions with space debris Note by the Secretariat* Addendum Contents Chapter Paragraphs Page I. Introduction........................................................... 1-2 2 Replies received from Member States and international organizations .................... 2 United States of America ......................................................... 2 European Space Agency.......................................................... 7 __________________ * The present document contains replies received from Member States and international organizations between 25 November 2000 and 25 January 2001. V.01-80520 (E) 020201 050201 A/AC.105/751/Add.1 I. Introduction 1. At its forty-third session, the Committee on the Peaceful Uses of Outer Space agreed that Member States should continue to be invited to report to the Secretary- General on a regular basis with regard to national and international research concerning the safety of space objects with nuclear power sources, that further studies should be conducted on the issue of collision of orbiting space objects with nuclear power sources on board with space debris and that the Committee’s Scientific and Technical Subcommittee should be kept informed of the results of such studies.1 The Committee also took note of the agreement of the Subcommittee that national research on space debris should continue and that Member States and international organizations should make available to all interested parties the results of that research, including information on practices adopted that had proved effective in minimizing the creation of space debris (A/AC.105/736, para. -
Space Administration
https://ntrs.nasa.gov/search.jsp?R=19700024651 2020-03-23T18:20:34+00:00Z TO THE CONGRESSOF THE UNITEDSTATES : Transmitted herewith is the Twenty-first Semiannual Repol* of the National Aeronautics and Space Administration. Twen~-first SEMIANNUAL REPORT TO CONGRESS JANUARY 1 - JUNE 30, 1969 NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON, D. C. 20546 Editors: G. B. DeGennaro, H. H. Milton, W. E. Boardman, Office of Public Affairs; Art work: A. Jordan, T. L. Lindsey, Office of Organiza- tion and Management. For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402-Price $1.25 THE PRESIDENT May 27,1970 The White House I submit this Twenty-First Semiannual Report of the National Aeronautics and Space Aldministration to you for transmitttal to Congress in accordance with section 206(a) of the National Aero- nautics and Space Act of 1958. It reports on aotivities which took place betiween January 1 and June 30, 1969. During this time, the Nation's space program moved forward on schedule. ApolIo 9 and 10 demonstrated the ability of ;the man- ned Lunar Module to operate in earth and lunar orbit and its 'eadi- ness to attempt the lunar landing. Unmanned observatory and ex- plorer class satellites carried on scientific studies of the regions surrounding the Earth, the Moon, and the Sun; a Biosatellite oarwing complex biological science experiment was orbited; and sophisticated weather satellites and advanced commercial com- munications spacecraft became operational. Advanced research projects expanded knowledge of space flighk and spacecraft engi- neering as well as of aeronautics. -
SATELLITES at WORK Space in the Seventies
SaLf ILMITRATBONS REPROMhdONkp N BLACK ANd WHiT? SATELLITES AT WORK Space in the Seventies 4 (SPACE IN N72-13 8 6 6 (NASA-EP-8 ) SATELLITES AT WORK THE SEVENTIES) W.R. Corliss (NASA) Jun. 1971 29 p CSCL 22B Unclas Reproduced by G3/31 11470 NATIONAL TECHNICAL u. INFORMATION SERVICE U S Department of Commerce Springfield VA 22151 J National Aeronautics and Space Administration SPACE IN THE SEVENTIES Man has walked on the Moon, made scientific observations there, and brought back to Earth samples of the lunar surface. Unmanned scientific spacecraft have probed for facts about matter, radiation and magnetism in space, and have collected data relating to the Moon, Venus, Mars, the Sun and some of the stars, and reported their findings to ground stations on Earth. Spacecraft have been put into orbit around the Earth as weather observation stations, as communications relay stations for a world-wide telephone and television network, and as aids to navigation. In addition, the space program has accelerated the advance of technology for science and industry, contributing many new ideas, processes and materials. All this took place in the decade of the Sixties. What next? What may be expected of space exploration in the Seventies? NASA has prepared a series of publications and motion pictures to provide a look forward to SPACE IN THE SEVENTIES. The topics covered in this series include: Earth orbital science; planetary exploration; practical applications of satellites; technology utilization; man in space; and aeronautics. SPACE IN THE SEVENTIES presents the planned programs of NASA for the coming decade. -
Information Summaries
TIROS 8 12/21/63 Delta-22 TIROS-H (A-53) 17B S National Aeronautics and TIROS 9 1/22/65 Delta-28 TIROS-I (A-54) 17A S Space Administration TIROS Operational 2TIROS 10 7/1/65 Delta-32 OT-1 17B S John F. Kennedy Space Center 2ESSA 1 2/3/66 Delta-36 OT-3 (TOS) 17A S Information Summaries 2 2 ESSA 2 2/28/66 Delta-37 OT-2 (TOS) 17B S 2ESSA 3 10/2/66 2Delta-41 TOS-A 1SLC-2E S PMS 031 (KSC) OSO (Orbiting Solar Observatories) Lunar and Planetary 2ESSA 4 1/26/67 2Delta-45 TOS-B 1SLC-2E S June 1999 OSO 1 3/7/62 Delta-8 OSO-A (S-16) 17A S 2ESSA 5 4/20/67 2Delta-48 TOS-C 1SLC-2E S OSO 2 2/3/65 Delta-29 OSO-B2 (S-17) 17B S Mission Launch Launch Payload Launch 2ESSA 6 11/10/67 2Delta-54 TOS-D 1SLC-2E S OSO 8/25/65 Delta-33 OSO-C 17B U Name Date Vehicle Code Pad Results 2ESSA 7 8/16/68 2Delta-58 TOS-E 1SLC-2E S OSO 3 3/8/67 Delta-46 OSO-E1 17A S 2ESSA 8 12/15/68 2Delta-62 TOS-F 1SLC-2E S OSO 4 10/18/67 Delta-53 OSO-D 17B S PIONEER (Lunar) 2ESSA 9 2/26/69 2Delta-67 TOS-G 17B S OSO 5 1/22/69 Delta-64 OSO-F 17B S Pioneer 1 10/11/58 Thor-Able-1 –– 17A U Major NASA 2 1 OSO 6/PAC 8/9/69 Delta-72 OSO-G/PAC 17A S Pioneer 2 11/8/58 Thor-Able-2 –– 17A U IMPROVED TIROS OPERATIONAL 2 1 OSO 7/TETR 3 9/29/71 Delta-85 OSO-H/TETR-D 17A S Pioneer 3 12/6/58 Juno II AM-11 –– 5 U 3ITOS 1/OSCAR 5 1/23/70 2Delta-76 1TIROS-M/OSCAR 1SLC-2W S 2 OSO 8 6/21/75 Delta-112 OSO-1 17B S Pioneer 4 3/3/59 Juno II AM-14 –– 5 S 3NOAA 1 12/11/70 2Delta-81 ITOS-A 1SLC-2W S Launches Pioneer 11/26/59 Atlas-Able-1 –– 14 U 3ITOS 10/21/71 2Delta-86 ITOS-B 1SLC-2E U OGO (Orbiting Geophysical -
The Wittelsbach-Graff and Hope Diamonds: Not Cut from the Same Rough
THE WITTELSBACH-GRAFF AND HOPE DIAMONDS: NOT CUT FROM THE SAME ROUGH Eloïse Gaillou, Wuyi Wang, Jeffrey E. Post, John M. King, James E. Butler, Alan T. Collins, and Thomas M. Moses Two historic blue diamonds, the Hope and the Wittelsbach-Graff, appeared together for the first time at the Smithsonian Institution in 2010. Both diamonds were apparently purchased in India in the 17th century and later belonged to European royalty. In addition to the parallels in their histo- ries, their comparable color and bright, long-lasting orange-red phosphorescence have led to speculation that these two diamonds might have come from the same piece of rough. Although the diamonds are similar spectroscopically, their dislocation patterns observed with the DiamondView differ in scale and texture, and they do not show the same internal strain features. The results indicate that the two diamonds did not originate from the same crystal, though they likely experienced similar geologic histories. he earliest records of the famous Hope and Adornment (Toison d’Or de la Parure de Couleur) in Wittelsbach-Graff diamonds (figure 1) show 1749, but was stolen in 1792 during the French T them in the possession of prominent Revolution. Twenty years later, a 45.52 ct blue dia- European royal families in the mid-17th century. mond appeared for sale in London and eventually They were undoubtedly mined in India, the world’s became part of the collection of Henry Philip Hope. only commercial source of diamonds at that time. Recent computer modeling studies have established The original ancestor of the Hope diamond was that the Hope diamond was cut from the French an approximately 115 ct stone (the Tavernier Blue) Blue, presumably to disguise its identity after the that Jean-Baptiste Tavernier sold to Louis XIV of theft (Attaway, 2005; Farges et al., 2009; Sucher et France in 1668. -
This Boeing Team's Skills at Producing Delta IV Rocket Fairings Helped
t’s usually the tail end of the rocket that gets all the early atten- other work. But they’d jump at the chance to work together again. tion, providing an impressive fiery display as the spacecraft is Their story is one of challenges and solutions. And they attribute hurled into orbit. But mission success also depends on what’s their success to Lean+ practices and good old-fashioned teamwork. Ion top of the rocket: a piece of metal called the payload fairing “The team took it upon themselves to make an excellent that protects the rocket’s cargo during the sometimes brutal ride product,” said program manager Thomas Fung. “We had parts to orbital speed. issues and tool problems, but the guys really stepped up and took “There’s no room for error,” said Tracy Allen, Boeing’s manu- pride and worked through the issues.” facturing production manager for a Huntington Beach, Calif., team The aluminum fairing team went through a major transition that made fairings for the Delta IV. The fairing not only protects the when Boeing merged its Delta Program with Lockheed Martin’s payload from launch to orbit but also must jettison properly for Atlas Program to form United Launch Alliance in 2006. deployment of the satellite or spacecraft. “There were a lot of process changes in the transition phase Allen and his colleagues built the 65-foot-long (20-meter-long) because we were working with a new company,” Fung said. “We aluminum isogrid fairings for the Delta IV heavy-lift launch vehicle. had part shortages because of vendor issues, and that caused The design was based on 41 similar fairings Boeing made for the an impact to the schedule. -
The SKYLON Spaceplane
The SKYLON Spaceplane Borg K.⇤ and Matula E.⇤ University of Colorado, Boulder, CO, 80309, USA This report outlines the major technical aspects of the SKYLON spaceplane as a final project for the ASEN 5053 class. The SKYLON spaceplane is designed as a single stage to orbit vehicle capable of lifting 15 mT to LEO from a 5.5 km runway and returning to land at the same location. It is powered by a unique engine design that combines an air- breathing and rocket mode into a single engine. This is achieved through the use of a novel lightweight heat exchanger that has been demonstrated on a reduced scale. The program has received funding from the UK government and ESA to build a full scale prototype of the engine as it’s next step. The project is technically feasible but will need to overcome some manufacturing issues and high start-up costs. This report is not intended for publication or commercial use. Nomenclature SSTO Single Stage To Orbit REL Reaction Engines Ltd UK United Kingdom LEO Low Earth Orbit SABRE Synergetic Air-Breathing Rocket Engine SOMA SKYLON Orbital Maneuvering Assembly HOTOL Horizontal Take-O↵and Landing NASP National Aerospace Program GT OW Gross Take-O↵Weight MECO Main Engine Cut-O↵ LACE Liquid Air Cooled Engine RCS Reaction Control System MLI Multi-Layer Insulation mT Tonne I. Introduction The SKYLON spaceplane is a single stage to orbit concept vehicle being developed by Reaction Engines Ltd in the United Kingdom. It is designed to take o↵and land on a runway delivering 15 mT of payload into LEO, in the current D-1 configuration. -
The Tubesat Launch Vehicle
TubeSat and NEPTUNE 30 Orbital Rocket Programs Personal Satellites Are GO! Interorbital Systems www.interorbital.com About Interorbital Corporation Founded in 1996 by Randa and Roderick Milliron, incorporated in 2001 Located at the Mojave Spaceport in Mojave, California 98.5% owned by R. and R. Milliron 1.5% owned by Eric Gullichsen Initial Starting Technology Pressure-fed liquid rocket engines Initial Mission Low-cost orbital and interplanetary launch vehicle development Facilities 6,000 square-foot research and development facility Two rocket engine test sites at the Mojave Spaceport Expert engineering and manufacturing team Interorbital Systems www.interorbital.com Core Technical Team Roderick Milliron: Chief Designer Lutz Kayser: Primary Technical Consultant Eric Gullichsen: Guidance and Control Gerard Auvray: Telecommunications Engineer Donald P. Bennett: Mechanical Engineer David Silsbee: Electronics Engineer Joel Kegel: Manufacturing/Engineering Tech Jacqueline Wein: Manufacturing/Engineering Tech Reinhold Ziegler: Space-Based Power Systems E. Mark Shusterman,M.D. Medical Life Support Randa Milliron: High-Temperature Composites Interorbital Systems www.interorbital.com Key Hardware Built In-House Propellant Tanks: Combining state-of-the-art composite technology with off-the-shelf aluminum liners Advanced Guidance Hardware and Software Ablative Rocket Engines and Components GPRE 0.5KNFA Rocket Engine Test Manned Space Flight Training Systems Rocket Injectors, Valves Systems, and Other Metal components Interorbital Systems www.interorbital.com Project History Pressure-Fed Rocket Engines GPRE 2.5KLMA Liquid Oxygen/Methanol Engine: Thrust = 2,500 lbs. GPRE 0.5KNFA WFNA/Furfuryl Alcohol (hypergolic): Thrust = 500 lbs. GPRE 0.5KNHXA WFNA/Turpentine (hypergolic): Thrust = 500 lbs. GPRE 3.0KNFA WFNA/Furfuryl Alcohol (hypergolic): Thrust = 3,000 lbs. -
NTI Day 9 Astronomy Michael Feeback Go To: Teachastronomy
NTI Day 9 Astronomy Michael Feeback Go to: teachastronomy.com textbook (chapter layout) Chapter 3 The Copernican Revolution Orbits Read the article and answer the following questions. Orbits You can use Newton's laws to calculate the speed that an object must reach to go into a circular orbit around a planet. The answer depends only on the mass of the planet and the distance from the planet to the desired orbit. The more massive the planet, the faster the speed. The higher above the surface, the lower the speed. For Earth, at a height just above the atmosphere, the answer is 7.8 kilometers per second, or 17,500 mph, which is why it takes a big rocket to launch a satellite! This speed is the minimum needed to keep an object in space near Earth, and is called the circular velocity. An object with a lower velocity will fall back to the surface under Earth's gravity. The same idea applies to any object in orbit around a larger object. The circular velocity of the Moon around the Earth is 1 kilometer per second. The Earth orbits the Sun at an average circular velocity of 30 kilometers per second (the Earth's orbit is an ellipse, not a circle, but it's close enough to circular that this is a good approximation). At further distances from the Sun, planets have lower orbital velocities. Pluto only has an average circular velocity of about 5 kilometers per second. To launch a satellite, all you have to do is raise it above the Earth's atmosphere with a rocket and then accelerate it until it reaches a speed of 7.8 kilometers per second. -
Up, Up, and Away by James J
www.astrosociety.org/uitc No. 34 - Spring 1996 © 1996, Astronomical Society of the Pacific, 390 Ashton Avenue, San Francisco, CA 94112. Up, Up, and Away by James J. Secosky, Bloomfield Central School and George Musser, Astronomical Society of the Pacific Want to take a tour of space? Then just flip around the channels on cable TV. Weather Channel forecasts, CNN newscasts, ESPN sportscasts: They all depend on satellites in Earth orbit. Or call your friends on Mauritius, Madagascar, or Maui: A satellite will relay your voice. Worried about the ozone hole over Antarctica or mass graves in Bosnia? Orbital outposts are keeping watch. The challenge these days is finding something that doesn't involve satellites in one way or other. And satellites are just one perk of the Space Age. Farther afield, robotic space probes have examined all the planets except Pluto, leading to a revolution in the Earth sciences -- from studies of plate tectonics to models of global warming -- now that scientists can compare our world to its planetary siblings. Over 300 people from 26 countries have gone into space, including the 24 astronauts who went on or near the Moon. Who knows how many will go in the next hundred years? In short, space travel has become a part of our lives. But what goes on behind the scenes? It turns out that satellites and spaceships depend on some of the most basic concepts of physics. So space travel isn't just fun to think about; it is a firm grounding in many of the principles that govern our world and our universe. -
Multisatellite Determination of the Relativistic Electron Phase Space Density at Geosynchronous Orbit: Methodology and Results During Geomagnetically Quiet Times Y
JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 110, A10210, doi:10.1029/2004JA010895, 2005 Multisatellite determination of the relativistic electron phase space density at geosynchronous orbit: Methodology and results during geomagnetically quiet times Y. Chen, R. H. W. Friedel, and G. D. Reeves Los Alamos National Laboratory, Los Alamos, New Mexico, USA T. G. Onsager NOAA, Boulder, Colorado, USA M. F. Thomsen Los Alamos National Laboratory, Los Alamos, New Mexico, USA Received 10 November 2004; revised 20 May 2005; accepted 8 July 2005; published 20 October 2005. [1] We develop and test a methodology to determine the relativistic electron phase space density distribution in the vicinity of geostationary orbit by making use of the pitch-angle resolved energetic electron data from three Los Alamos National Laboratory geosynchronous Synchronous Orbit Particle Analyzer instruments and magnetic field measurements from two GOES satellites. Owing to the Earth’s dipole tilt and drift shell splitting for different pitch angles, each satellite samples a different range of Roederer L* throughout its orbit. We use existing empirical magnetic field models and the measured pitch-angle resolved electron spectra to determine the phase space density as a function of the three adiabatic invariants at each spacecraft. Comparing all satellite measurements provides a determination of the global phase space density gradient over the range L* 6–7. We investigate the sensitivity of this method to the choice of the magnetic field model and the fidelity of the instrument intercalibration in order to both understand and mitigate possible error sources. Results for magnetically quiet periods show that the radial slopes of the density distribution at low energy are positive, while at high energy the slopes are negative, which confirms the results from some earlier studies of this type. -
Geosynchronous Orbit Determination Using Space Surveillance Network Observations and Improved Radiative Force Modeling
Geosynchronous Orbit Determination Using Space Surveillance Network Observations and Improved Radiative Force Modeling by Richard Harry Lyon B.S., Astronautical Engineering United States Air Force Academy, 2002 SUBMITTED TO THE DEPARTMENT OF AERONAUTICS AND ASTRONAUTICS IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE IN AERONAUTICS AND ASTRONAUTICS AT THE MASSACHUSETTS INSTITUTE OF TECHNOLOGY JUNE 2004 0 2004 Massachusetts Institute of Technology. All rights reserved. Signature of Author: Department of Aeronautics and Astronautics May 14, 2004 Certified by: Dr. Pa1 J. Cefola Technical Staff, the MIT Lincoln Laboratory Lecturer, Department of Aeronautics and Astronautics Thesis Supervisor Accepted by: Edward M. Greitzer H.N. Slater Professor of Aeronautics and Astronautics MASSACHUSETTS INS E OF TECHNOLOGY Chair, Committee on Graduate Students JUL 0 1 2004 AERO LBRARIES [This page intentionally left blank.] 2 Geosynchronous Orbit Determination Using Space Surveillance Network Observations and Improved Radiative Force Modeling by Richard Harry Lyon Submitted to the Department of Aeronautics and Astronautics on May 14, 2004 in Partial Fulfillment of the Requirements for the Degree of Master of Science in Aeronautics and Astronautics ABSTRACT Correct modeling of the space environment, including radiative forces, is an important aspect of space situational awareness for geostationary (GEO) spacecraft. Solar radiation pressure has traditionally been modeled using a rotationally-invariant sphere with uniform optical properties. This study is intended to improve orbit determination accuracy for 3-axis stabilized GEO spacecraft via an improved radiative force model. The macro-model approach, developed earlier at NASA GSFC for the Tracking and Data Relay Satellites (TDRSS), models the spacecraft area and reflectivity properties using an assembly of flat plates to represent the spacecraft components.