The Complete Book of Spaceflight From Apollo 1 to Zero Gravity David Darling John Wiley & Sons, Inc. This book is printed on acid-free paper. ●∞ Copyright © 2003 by David Darling. All rights reserved. Published by John Wiley & Sons, Inc., Hoboken, New Jersey Published simultaneously in Canada No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 750-4470, or on the web at www.copyright.com. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, email: [email protected]. Limit of Liability/Disclaimer of Warranty: While the publisher and the author have used their best efforts in preparing this book, they make no representations or warranties with respect to the accuracy or completeness of the contents of this book and specifically disclaim any implied warranties of merchantability or fitness for a particular purpose. No warranty may be created or extended by sales representatives or written sales materials. The advice and strategies contained herein may not be suitable for your situation. You should consult with a professional where appropriate. Neither the publisher nor the author shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages. For general information about our other products and services, please contact our Customer Care Department within the United States at (800) 762-2974, outside the United States at (317) 572-3993 or fax (317) 572-4002. Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may not be available in electronic books. For more information about Wiley products, visit our web site at www.wiley.com. ISBN 0-471-05649-9 Printed in the United States of America 10 9 8 7 6 5 4 3 2 1 Contents Acknowledgments v Introduction 1 How to Use This Book 3 Exponential Notation 3 Orbits 3 Units 3 Spaceflight Entries A to Z 5 Acronyms and Abbreviations 498 References 504 Web Sites 513 Category Index 521 iii Acknowledgments Abook of this size and scope isn’t a one-man enter- detail. Any mistakes and inaccuracies that remain are my prise. Dozens of individuals at space agencies, gov- responsibility alone. As always, my thanks go to my very ernment laboratories, military bases, aerospace companies, special agent, Patricia van der Leun, for finding the book and universities generously provided information and a home and providing support along the way. Finally and illustrations. At John Wiley, I’m particulary grateful to my foremost, my love and gratitude go to my family—my par- editor, Jeff Golick, and to Marcia Samuels, senior manag- ents, my wife, Jill, and my now-grownup children, Lori- ing editor, for their excellent suggestions and attention to An and Jeff—for making it all possible. Introduction It is astonishing to think that there are people alive light-years. We can extol the virtues of mining the Moon today from the time when man first flew in an engine- or the asteroid belt, or learning about our origins in powered, heavier-than-air plane. In the past century, we cometary dust, or the things that can be made or gleaned have learned not only to fly, but to fly to the Moon, to from a laboratory in zero-g.But these reasons are not at Mars, and to the very outskirts of the Solar System. Look the core of why we go—why we must go—on a voyage that up at the right time and place on a clear night and you will ultimately take us to the stars. Our reason for space- can see the International Space Station glide across the flight is just this: we are human, and to be human is to be sky and know that not all of us are now confined to inquisitive. At heart, we are explorers with a universe of Earth: always there are a handful of us on the near edge billions of new worlds before us. of this new and final frontier of space. This book is intended as a companion to the human Our first steps beyond our home planet have been hes- journey into space. Of course, it has many facts and fig- itant and hazardous. There are some who say, “Why ures—and acronyms!—as all books on this subject do. But bother?” Why expend effort and money, and risk lives, beyond the technical details of rockets and orbits, it tries when there are so many problems to be resolved back on to capture something of the drama of the quest, the this world? In the end, the answer is simple. We can point human thread—in a word, the culture of space explo- to the enormous value of Earth resources satellites in ration. I hope that many readers will use it to wander monitoring the environment, or to the benefits of space- from reference to reference and so create their own craft that help us communicate among continents or pre- unique paths through this most unique of adventures. dict the weather or gaze with clear sight across the Enjoy the ride! 1 How to Use This Book Entries range from simple definitions to lengthy articles For example, the Japanese Ohzora satellite is listed as on subjects of central importance or unusual interest, having an orbit of 247 ×331 km ×75°. This means that and are extensively cross-referenced. Terms that are in the low and high points of the orbit were 247 km and 331 boldtype have their own entries. Numbers that appear as km, respectively, above Earth’s surface, and that the orbit superscripts in the text are references to books, journal was tilted by 75°with respect to Earth’s equator. articles, and so on, listed alphabetically by author at the back of the book. A list of web sites on subjects dealt with Units in the text is also provided. Entries are arranged alphabetically according to the first Distance word of the entry name. So, for example, “anti-gsuit” pre- 1 kilometer (km) =0.62 mile cedes “antigravity.” Where names are also known by their 1 meter (m) =3.28 feet (ft) =39.37 inches (in.) acronyms or abbreviations, as happens frequently in the language of spaceflight, the definition appears under the 1 centimeter (cm) =0.39 in. form most commonly used. For example, the headwords 1 km =1,000 m “NASA” and “TIROS” are preferred to “National Aero- 1 m =100 cm =1,000 millimeters (mm) nautics and Space Administration” and “Television 1 mm =103microns (µm)=106nanometers (nm) Infrared Observations System.” On the other hand, “Hub- ble Space Telescope” and “Goddard Space Flight Center” 1 astronomical unit (AU) =1.50× 108km are preferred to “HST” and “GSFC.” The alternative form 1 light-year =63,240AU =9.46× 1012km is always given in parentheses afterward. In addition, the Acronyms and Abbreviations section in the back of the Area book lists all of the alternative forms for easy reference. 1 hectare =2.47 acres Metric units are used throughout, unless it is more 1 square meter (m2)=10.76 square feet (ft2) appropriate, for historical reasons, to do otherwise. See the “Units” section below for conversion factors. Volume Exponential Notation 1 cubic meter (m3)=35.31 cubic feet (ft3) In the interest of brevity, exponential notation is used in Speed this book to represent large and small numbers. For 1 km/s =2,240 mph example, 300,000,000 is written as 3 ×108, the power of 10 indicating how many places the decimal point has Acceleration been moved to the left from the original number (or, 1g(one-gee)=9.81 m/s2=32.19 ft/s2 more simply, the number of zeroes). Small numbers have negative exponents, indicating how many places the Mass point has been shifted to the left. For example, 0.000049 is written as 4.9 ×10−5. 1 kilogram (kg) =2.21 pounds (lb) 1 kg =1,000 grams (g) Orbits 1 g =103milligrams (mg) =109nanograms (ng) Orbits of satellites are given in the form: 1 metric ton =1,000 kg =2,205 lb =0.98 long ton perigee× apogee× inclination Note:In this book, tonsrefers to metric tons. 3 4 How to Use This Book Energy Force 1 joule (J) =9.48× 10−4British thermal unit (Btu) 1 newton (N) = 0.22 pounds-force (lbf) = 0.102 kilo- 1 electron-volt (eV) =1.60× 10−19J grams-force (kgf) 1 GeV =103MeV =106keV=109eV 1 kilonewton (kN) =1,000 N Note:Electron-volts are convenient units for measuring Power the energies of particles and electromagnetic radiation. In the case of electromagnetic radiation, it is customary to 1 watt (W) =0.74 ft-lbf/s =0.0013 horsepower (hp) measure longer-wavelength types in terms of their wave- 1 kilowatt (kW) =1,000 W length (in units of cm, µm, etc.) and shorter-wavelength types, especially X-rays and gamma-rays in terms of their Temperature energy (in units of keV, MeV, etc.). The wavelength asso- ciated with electromagnetic waves of energy 1 keV is C=5⁄9(F−32) 0.124 nm. F=9⁄5C+32 A “A” series of German rockets effectiveness of antiaircraft weapons. In fact, A.T. con- A family of liquid-propellant rockets built by Nazi Ger- cept vehicles were intended to test the feasibility of many immediately before and during World War II. With using radio signals to guide a flying bomb to its target. the “A” (Aggregate) rockets came technology that could Radio guidance equipment was developed and installed be used either to bomb cities or to begin the exploration on small monoplanes, each powered by a 35-horsepower of space. Key to this development was Wernher von Granville Bradshaw engine. Two A.T. test flights were Braunand his team of scientists and engineers. The series made in March 1917 at the Royal Flying Corps training began with the small A-1, which, in common with all of school field at Upavon. Although both vehicles crashed the “A” rockets, used alcohol as a fuel and liquid oxygen due to engine failure, they at least showed that radio as an oxidizer. Built and tested mostly on the ground at guidance was feasible. However, the A.T. program was Kummersdorf, it enabled various design problems to be scrapped because it was thought to have limited military identified. A reconfigured version, known as the A-2, potential. made two successful flights in December 1934 from the North Sea island of Borkum, reaching a height of about Abbott, Ira Herbert (1906–) 2 km. The development effort then shifted to Pee- A prominent aeronautical engineer in the early years of nemünde. In 1937, the new A-3 rocket was launched the American space program. After graduating from the from an island in the Baltic Sea. Measuring 7.6 m in Massachusetts Institute of Technology, Abbott joined the length and weighing 748 kg, it was powered by an engine LangleyAeronautical Laboratory in 1929. The author of that produced 14,700 newtons (N) of thrust. Three flights many technical reports on aerodynamics, he was instru- were made, none completely successful because the A-3’s mental in setting up programs in high-speed research. By gyroscopic control system was too weak to give adequate 1945, he had risen to be assistant chief of research at steering. Consequently, a new test rocket was developed Langley. Transferring to NACA (National Advisory with the designation A-5—the name A-4 having been Committee for Aeronautics) headquarters in 1948 as reserved for a future military rocket of which the A-5 was assistant director of aerodynamics research, he was pro- a subscale version. The A-5 was built with most of the moted to director of advanced research programs at components from the A-3 but with a larger diameter air- NASA in 1959 and to director of advanced research and frame, a tapered boat-tail, and a new steering control sys- technology in 1961. In this last capacity, Abbott super- tem that was incorporated into larger, redesigned fins. vised the X-15, supersonic transport, nuclear rocket, and Measuring 7.6 m in length and 0.76 m in diameter, it used advanced reentry programs. He retired in 1962. the same 14,700-N motor as the A-3 and was test-flown from the island of Greifswalder Oie off the Baltic coast. Aberdeen Proving Ground The first flights, conducted in 1938 without gyroscopic The U.S. Army’s oldest active proving ground. It was es- control, came close to the speed of sound and reached an tablished on October 20, 1917, six months after the United altitude of around 8 km. The new guidance system was States entered World War I, as a facility where ordnance installed in 1939, enabling the A-5 to maneuver into a materiel could be designed and tested close to the nation’s ballistic arc, and by the end of its testing the rocket had industrial and shipping centers. Aberdeen Proving Ground been launched 25 times, reaching altitudes of nearly 13.5 occupies more than 29,000 hectares in Harford County, km. The stage was set for the arrival of the remarkable Maryland, and is home to the Ballistic Research Labora- A-4—better known as the V-2 (see “V” weapons).231 tory, where, during the 1950s and early 1960s, important work was done on integrating electronic computers, space A.T. (Aerial Target) studies, and satellite tracking. Along with the American Kettering Bug, one of the ear- liest experimental guided missiles. This British project, ablation begun in 1914 under the direction of Archibald M. Low, The removal of surface material, such as what occurs in was deliberately misnamed so that enemy spies would thecombustion chamberof a rocket, or on the leading think the vehicles were simply drones flown to test the surfaces of a spacecraft during atmospheric reentry or 5 6 Able passage through a dusty medium in space, such as the the maximum acceleration or decelerationthat an astro- tail of a comet. An expendable surface made of ablative naut can withstand before losing consciousness. material may be used as a coating in a combustion cham- ber or on the heat shield of a reentry vehicle. As the acceleration due to gravity (g) ablative material absorbs heat, it changes chemical or The acceleration that an object experiences when it falls physical state and sheds mass, thereby carrying the heat freely close to the surface of a body such as a planet. Its away from the rest of the structure. See reentry thermal value is given by the formula g=GM/R2,whereMis the protection. mass of the gravitating body, Rits radius, and Gthegrav- itational constant. On Earth, g is about 9.8 m/s2, Able although its value varies slightly with latitude. (1) A modified form of the Aerojet AJ-10 second stage of theVanguardrocket used as the second stage of the Thor- accelerometer Able, Thor-Able Star, and Atlas-Able launch vehicles. (2) An instrument that measures accelerationor the gravita- An early, ill-fated American lunar program approved by tional force capable of imparting acceleration. It usually President Eisenhower on March 27, 1958, and intended to employs a concentrated mass that resists movement place a satellite in orbit around the Moon. Project Able because of its inertia; acceleration is measured in terms became the first lunar shot in history, preceding even of the displacement of this mass relative to its supporting Luna 1, when a Thor-Able took off at 12:18 GMT on frame or container. August 17, 1958, before a small group of journalists. Un- ACCESS (Advanced Cosmic-ray Composition fortunately, only 77 seconds into the flight, the Thor’s tur- Experiment on the Space Station) bopumpseized and the missile blew up. Telemetry from An experiment to study the origin and makeup of cos- the probe was received for a further 123 seconds until the mic rays over a three-year period. ACCESS will be 39-kg spacecraft ended its brief journey by falling into the attached to the International Space Station and is due to Atlantic. Although not given an official name, the probe replace AMS (Alpha Magnetic Spectrometer) in about is referred to as Pioneer 0 or Able 1. Before the launch of 2007. Its two instruments, the Hadron Calorimeter and the second probe, the whole program was transferred to the Transition Radiation Detector, will measure the ele- NASA, which renamed it Pioneer. (3) A rhesus monkey mental makeup of cosmic rays from lightest nuclei to housed in a biocapsule that was sent on a suborbital flight heaviest and determine if the flux of high-energy elec- by a specially configured Jupitermissile on May 28, 1959. trons in cosmic rays varies with direction, as would be the Able and its companion Baker, a female squirrel monkey case if some come from local sources. placed in a second biocapsule, became the first live ani- mals to be recovered after traveling outside Earth’s at- ACE (Advanced Composition Explorer) mosphere. Able died on June 1, 1959, from the effects of A NASA satellite designed to measure the elemental and anesthesia given to allow the removal of electrodes. An isotopic composition of matter from several different autopsy revealed that Able had suffered no adverse effects sources, including the solar corona and the interstellar from its flight.236 medium. ACE was placed in a halo orbitaround the first Lagrangian point (L1) of the Earth-Sun system, about abort 1.4 million km from Earth. It carries six high-resolution The premature and sudden ending of a mission because of sensors and three monitoring instruments for sampling a problem that significantly affects the mission’s chances low-energy particles of solar origin and high-energy galac- of success. tic particles with a collecting power 10 to 1,000 times greater than previous experiments. The spacecraft can acceleration give about an hour’s advance warning of geomagnetic The rate at which the velocityof an object changes. Ac- storms that might overload power grids, disrupt commu- celeration can be linear (in a straight line), angular (due to nications, and pose a hazard to astronauts. a change in direction), or negative (when it is known as deceleration). Related terms include: (1) acceleration stress, Launch which is the physiological effect of high acceleration or Date: August 25, 1997 deceleration on the human body; it increases with the Vehicle: Delta 7920 magnitude and duration of the acceleration. Longitudi- Site: Cape Canaveral nal accelerations cannot be tolerated as well as transverse Orbit: halo ones, as the former have a stronger influence on the car- Mass at launch: 785 kg diovascular system, and (2) acceleration tolerance,which is adapter skirt 7 evacuate the station and return safely to Earth. This role, currently filled by the Russian Soyuz TMA spacecraft, was to have been taken up by the X-38, a small winged reentry ferry. However, budget cuts in 2001 forced NASA to shelve further development of the X-38, leaving the future of the ACRV in doubt. Among the possibilities are that the present Soyuz could either be retained for the job or be replaced by a special ACRV Soyuz that has been under development for more than 30 years. Features that distinguish the ACRV Soyuz from the standard model are ACE (Advanced Composition Explorer) ACE and its orbit seats that can accommodate larger crew members and an around the first Lagrangian point. NASA upgraded onboard computer that assures a more accurate landing. acquisition active satellite (1) The process of locating the orbit of a satellite or the A satellite that carries equipment, including onboard trajectory of a space probe so that tracking or telemetry power supplies, for collecting, transmitting, or relaying data can be gathered. (2) The process of pointing an data. It contrasts with a passive satellite. antenna or telescope so that it is properly oriented to allow gathering of tracking or telemetry data from a satel- ACTS (Advanced Communications lite or space probe. Technology Satellite) An experimental NASA satellite that played a central role ACRIMSAT (Active Cavity Radiometer Irradiance in the development and flight-testing of technologies Monitor Satellite) now being used on the latest generation of commercial Asatelliteequippedtomeasuretheamountofenergy communications satellites. The first all-digital commu- givenoutbytheSun—thetotalsolarirradiance(TSI)—over nications satellite, ACTS supported standard fiber-optic afive-yearperiod.ACRIMSATcarriesACRIM-3(Active data rates, operated in the K- and Ka-frequency bands, CavityRadiometerIrradianceMonitor3),thethirdina pioneered dynamic hopping spot beams, and advanced seriesoflong-termsolar-monitoringtoolsbuiltbyJPL(Jet onboard traffic switching and processing. (A hopping PropulsionLaboratory).Thisinstrumentextendsthedata- spot beam is an antenna beam on the spacecraft that basestartedbyACRIM-1,whichwaslaunchedon SMM points at one location on the ground for a fraction of a (SolarMaximumMission)in1980andcontinuedby millisecond. It sends/receives voice or data information ACRIM-2on UARS(UpperAtmosphereResearchSatel- and then electronically “hops” to a second location, then lite)in1991.ACRIM-1wasthefirstexperimenttoshow a third, and so on. At the beginning of the second mil- clearlythattheTSIvaries.Thesolarvariabilityissoslight, lisecond, the beam again points at the first location.) however,thatitsstudycallsforcontinuousstate-of-the- ACTS-type onboard processing and Ka-band communi- artmonitoring.Theorysuggeststhatasmuchas25%of cations are now used operationally by, among others, the Earth’sglobalwarmingmaybeofsolarorigin.Italsoseems Iridium and Teledesic systems. ACTS was developed, thatevensmall(0.5%)changesintheTSIoveracenturyor managed, and operated by the Glenn Research Center. Its moremayhavesignificantclimaticeffects.ACRIMSATis mission ended in June 2000.110 partofNASA’s EOS(EarthObservingSystem). Shuttle deployment Launch Date: September 16, 1993 Date: December 21, 1999 Mission: STS-51 Vehicle: Taurus Orbit: geostationary at 100°W Site: Vandenberg Air Force Base On-orbit mass: 2,767 kg Orbit: 272 ×683 km ×98.3° adapter skirt ACRV (Assured Crew Return Vehicle) A flange, or extension of a space vehicle stage or section, A space lifeboat attached to the International Space Sta- that enables the attachment of some object, such as tion(ISS) so that in an emergency, the crew could quickly another stage or section.
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