3
3.0
Dec 13, 2021
12/21
by
Owen, Ruth, 1967- author
texts
eye 3
favorite 0
comment 0
32 pages : 23 cm
Topics: Space debris -- Juvenile literature, Space debris
10
10.0
Oct 9, 2019
10/19
by
Kortenkamp, Steve
texts
eye 10
favorite 0
comment 0
24 pages : 21 cm
Topics: Space debris -- Juvenile literature, Space debris
5
5.0
Dec 4, 2019
12/19
by
Carroll, Amy Tucker
texts
eye 5
favorite 0
comment 0
159 pages ; 23 cm
Topics: Space debris -- Juvenile fiction, Space debris -- Fiction, Science fiction, Space debris
39
39
May 12, 2010
05/10
by
Maurer, Richard, 1950-; WGBH (Television station : Boston, Mass.)
texts
eye 39
favorite 1
comment 0
"In association with WGBH Boston, producers of NOVA for public television."
Topic: Space debris
62
62
Apr 9, 2012
04/12
by
Asimov, Isaac, 1920-
texts
eye 62
favorite 1
comment 0
Bibliography: p. 30
Topic: Space debris
6
6.0
Jan 11, 2021
01/21
by
Milne, Antony
texts
eye 6
favorite 0
comment 0
x, 187 p. ; 25 cm
Topic: Space debris
28
28
Sep 1, 2011
09/11
by
Donnelly, Judy; Kramer, Sydelle
texts
eye 28
favorite 1
comment 0
Includes bibliographical references (p. 99-102) and index
Topics: Space debris, Space pollution
32
32
Oct 28, 2019
10/19
by
Asimov, Isaac, 1920-1992
texts
eye 32
favorite 0
comment 0
32 pages : 27 cm
Topics: Space debris -- Juvenile literature, Space pollution -- Juvenile literature, Space debris, Space...
33
33
Jan 6, 2019
01/19
by
Adhar Sharma, Ravindra Bhardwaj
texts
eye 33
favorite 0
comment 0
Humans have not only polluted earth but, also produced significant junk in space. The paper intends to discuss space debris, its generation and general methodologies proposed by space organizations that can be adapted to solve the problem of space debris for the collective good of humanity. Data on space debris has been computed to plot orbits of the debris, and this has been demonstrated as a part of the research for its enabling nature in general study of space debris. The paper aims to...
Topics: Multiple orbit, satellite and space debris
A statistical analysis of the NASA Space Shuttle Hypervelocity Impact Database to find correlations between meteoroid and orbital debris (M/OD) impacts on the shuttle orbiter fleet and specific mission parameters; Inclination, Altitude, Duration and Year. M/OD impact data, regardless of location, particle type or mission was examined first, followed by the subcategories of Window data, Radiator data, Reinforced Carbon-Carbon (RCC) data, and Flexible Reusable Surface Insulation (FRSI) data. In...
Topics: Regression analysis, Space shuttles, Space debris, Meteoroids
This thesis provides a student studying space with background information and insight into selected issues that have shaped, or continue to shape, the world's approach to activities involving space. Further, the basic understanding gained through the study of these issues and their connection with international treaties and policies gives an appreciation for the regulatory side of space programs. Some of the topics discussed are the delimitation and control of space, space debris, and the...
Topics: space law, space policy, delimitation, space debris
The United States is reliant on the capabilities provided by satellite technology for nearly every facet of society. A sustained loss of satellite capabilities due to any service outages will have a significant negative impact on the nation’s homeland security. The areas affected include communication, financial transactions, intelligence gathering, internet access, and weather surveillance. Existing domestic and international policy has been insufficient in managing debris growth. The...
Topics: space debris, debris remediation, public-private partnerships
61
61
Oct 22, 2010
10/10
by
Herbert, Brian
texts
eye 61
favorite 2
comment 0
Topics: Comets, Refuse and refuse disposal, Space debris
4
4.0
May 19, 2021
05/21
by
Young, Karen Romano, author
texts
eye 4
favorite 0
comment 0
pages cm
Topics: Space debris -- Juvenile literature, Space pollution -- Juvenile literature
15
15
Oct 29, 2019
10/19
by
White, Ted. author
texts
eye 15
favorite 2
comment 0
xii, 160 pages ; 18 cm
Topics: Refuse collectors -- Fiction, Science fiction, American, Human-alien encounters -- Fiction, Space...
The rapid increase of space activity in the 21st century has raised questions about the adequacy of the 1967 Outer Space Treaty (OST) to govern orbital activities and prevent future international conflicts. This thesis analyzes the OST’s ability to address critical emerging problems across three issue areas: orbital space debris, the weaponization of space, and asteroid and Moon mining. It concludes by arguing that the language within the OST does not adequately address these emerging...
Topics: Outer Space Treaty, space debris, space weaponization, space mining
4
4.0
Oct 29, 2019
10/19
by
James, Nick, 1983-
texts
eye 4
favorite 1
comment 0
353 p. ; 21 cm
Topics: Science fiction, Space debris -- Juvenile fiction, Smuggling -- Juvenile fiction
964
964
May 6, 2010
05/10
by
Christensen, D
texts
eye 964
favorite 0
comment 0
Planetary & interplanetary environment - solar system, planets & their satellites, radiation & space debris hazards
Topics: AEROSPACE ENVIRONMENTS, RADIATION HAZARD, SOLAR SYSTEM, SPACE DEBRIS, INTERPLANETARY SPACE,...
410
410
Jun 12, 2011
06/11
by
Capece, Vincent R.; Ford, Christopher; Bone, Christopher; Li, Ru
texts
eye 410
favorite 0
comment 0
The overall objective of this research program was to investigate methods to modify the leading edge separation region, which could lead to an improvement in aeroelastic stability of advanced airfoil designs. The airfoil section used is representative of current low aspect ratio fan blade tip sections. The experimental potion of this study investigated separated zone boundary layer from removal through suction slots. Suction applied to a cavity in the vicinity of the separation onset point was...
Topics: BALLISTICS, COMPUTER PROGRAMS, DAMAGE, PREDICTIONS, SPACE SHUTTLES, SPACE DEBRIS, MICROMETEOROIDS,...
Orbital debris is a space security problem, and the existing space debris mitigation framework is insufficient to achieve long-term space sustainability. Fortunately, recent developments in commercial space situational awareness (SSA) systems may provide an alternative solution. This thesis explores two research questions. First, could commercial SSA systems be used as a verification mechanism for space debris mitigation accountability? Second, how could such a verification regime lead to...
Topics: space, space systems, space situational awareness, SSA, commercial, orbital debris, space debris
264
264
May 21, 2011
05/11
by
Regler, Hans; Ruede, Ulric
texts
eye 264
favorite 0
comment 0
Finding the optimal position for the individual cells (also called functional modules) on the chip surface is an important and difficult step in the design of integrated circuits. This paper deals with the problem of relative placement, that is the minimization of a quadratic functional with a large, sparse, positive definite system matrix. The basic optimization problem must be augmented by constraints to inhibit solutions where cells overlap. Besides classical iterative methods, based on...
Topics: FRAGMENTATION, MANEUVERABLE SPACECRAFT, SOVIET SPACECRAFT, SPACECRAFT BREAKUP, EXPLOSIVE DEVICES,...
423
423
Jun 15, 2011
06/11
by
Anderson, D. C.; Garrett, R. E
texts
eye 423
favorite 0
comment 0
Hardware and software systems developed to further research and education in interactive computer graphics were described, as well as several of the ongoing application-oriented projects, educational graphics programs, and graduate research projects. The software system consists of a FORTRAN 4 subroutine package, in conjunction with a PDP 11/40 minicomputer as the primary computation processor and the Imlac PDS-1 as an intelligent display processor. The package comprises a comprehensive set of...
Topics: MASS DISTRIBUTION, SPACE DEBRIS, ARTIFICIAL SATELLITES, EXPLOSIONS, FRAGMENTATION, HYPERVELOCITY...
Topics: NASA Technical Reports Server (NTRS), BIOLOGICAL EVOLUTION, METEORITE CRATERS, SPACE DEBRIS,...
399
399
May 22, 2011
05/11
by
Kaaret, Philip; Chen, Andre
texts
eye 399
favorite 0
comment 0
The goal of this research program was to develop a novel technique for focusing x-rays based on the optical system of a lobster's eye. A lobster eye employs many closely packed reflecting surfaces arranged within a spherical or cylindrical shell. These optics have two unique properties: they have unlimited fields of view and can be manufactured via replication of identical structures. Because the angular resolution is given by the ratio of the size of the individual optical elements to the...
Topics: ARC DISCHARGES, ELECTRIC ARCS, SPACE DEBRIS, SPACE PLASMAS, SPACECRAFT CHARGING, CAPACITANCE, SPACE...
433
433
Jun 13, 2011
06/11
by
Berglund, Judith; Holland, Donald; McKellip, Rodney; Sciaudone, Jeff; Vickery, Peter; Wang, Zhanxian; Ying, Ke
texts
eye 433
favorite 0
comment 0
The report summarizes the results from the preliminary benchmarking activities associated with the use of WAVEWATCH III (WW3) results in the HAZUS-MH MR1 flood module. Project partner Applied Research Associates (ARA) is integrating the WW3 model into HAZUS. The current version of HAZUS-MH predicts loss estimates from hurricane-related coastal flooding by using values of surge only. Using WW3, wave setup can be included with surge. Loss estimates resulting from the use of surge-only and...
Topics: IMPACT DAMAGE, SPACE DEBRIS, TILES, IMPACTORS, ACCIDENT INVESTIGATION, SPACE SHUTTLES, SIMULATION,...
328
328
Jul 6, 2010
07/10
by
Hodder, B. K
texts
eye 328
favorite 0
comment 0
Results of an experimental investigation at the Ames 40- by 80-Foot Wind Tunnel of fan rotor alone discrete tone noise is presented. The investigation examines rotor interaction with fan inlet turbulence. The importance of turbulence length scale is shown by comparing the fan radiated acoustic spectrum with and without modified turbulence length scales. A small-scale low pressure ratio fan was used for the experiment.
Topics: COSMIC PLASMA, PARTICLES, SPACE SHUTTLES, SPACECRAFT CONTAMINATION, COSMIC DUST, EXPERIMENT DESIGN,...
264
264
Jun 13, 2011
06/11
by
Parkes, Steve; Schnurr, Rick; Marquart, Jane; Menke, Greg; Ciccone, Massimilian
texts
eye 264
favorite 0
comment 0
The Consultative Committee for Space Data Systems (CCSDS) is developing recommendations for communication services onboard spacecraft. Today many different communication buses are used on spacecraft requiring software with the same basic functionality to be rewritten for each type of bus. This impacts on the application software resulting in custom software for almost every new mission. The Spacecraft Onboard Interface Services (SOIS) working group aims to provide a consistent interface to...
Topics: INTERNATIONAL SPACE STATION, JETTISONING, POLICIES, AEROSPACE ENVIRONMENTS, DEPLOYMENT, SPACE...
Problem Definition: A simulation that accounts for all the data items affecting the trajectory as the Time of Closest Approach (TCA) nears is needed to improve event characterization.
Topics: NASA Technical Reports Server (NTRS), SIMULATION, TRAJECTORIES, SPACE DEBRIS, PARABOLIC REFLECTORS,...
No abstract available
Topics: NASA Technical Reports Server (NTRS), SPACE DEBRIS, NASA PROGRAMS, MEASUREMENT, TELESCOPES,...
Space debris mitigation practices will be insufficient to prevent the continued growth of the Earth satellite population. Removal of orbital debris can improve the reliability of present and future space systems. The challenges of developing an effective, affordable debris removal capability are considerable. The time is right for a new look at space remediation concepts. In concert with or following the current IAA study An international approach to the remediation of the near-Earth space...
Topics: NASA Technical Reports Server (NTRS), SPACE DEBRIS, AEROSPACE SYSTEMS, RELIABILITY, POPULATIONS,...
309
309
Jun 9, 2011
06/11
by
Luckring, J. M.; Hemsch, M. J.; Morrison, J. H
texts
eye 309
favorite 1
comment 0
An approach is presented to treat computational aerodynamics as a process, subject to the fundamental quality assurance principles of process control and process improvement. We consider several aspects affecting uncertainty for the computational aerodynamic process and present a set of stages to determine the level of management required to meet risk assumptions desired by the customer of the predictions.
Topics: HYPERVELOCITY IMPACT, SPACE DEBRIS, METEOROID HAZARDS, MICROMETEOROIDS, EARTH ORBITAL ENVIRONMENTS,...
The research conducted under NASA Research Grant has been reported periodically throughout the duration of this grant. This research has been coordinated with the work supported by NASA Graduate Student Research Grant awarded to further the graduate doctoral program of Kira Jorgensen. This work will continue through the completion of Kira Jorgensen's Ph.D. program in May, 2000.
Topics: NASA Technical Reports Server (NTRS), DETECTION, ESTIMATING, SPACE DEBRIS, EDUCATION, RESEARCH,...
Using updated measurement data, analysis tools, and modeling techniques; the NASA Orbital Debris Program Office has created a new Orbital Debris Environment Model. This model extends the coverage of orbital debris flux throughout the Earth orbit environment, and includes information on the mass density of the debris as well as the uncertainties in the model environment. This paper will give an overview of this model and its implications for spacecraft risk analysis.
Topics: NASA Technical Reports Server (NTRS), SPACE DEBRIS, ENVIRONMENT MODELS, EARTH ORBITS, DEBRIS, RISK,...
Since 1963 more than 900 spacecraft and more than 200 launch vehicle upper stages have been inserted into the vicinity of the geosynchronous regime. Equally important, more than 300 spacecraft have been maneuvered into disposal orbits at mission termination to alleviate unnecessary congestion in the finite GEO region. However, the number of GEO satellites continues to grow, and evidence exists of a substantial small debris population. In addition, the operational modes of an increasing number...
Topics: NASA Technical Reports Server (NTRS), GEOSYNCHRONOUS ORBITS, SPACE DEBRIS, HAZARDS, ECCENTRIC...
The U.S. Navy is currently conducting research which will support the production of a MW-class free-electron laser (FEL). The Navy's end-state goal is to design and implement a defense system capable of destroying a fast-flying, anti-ship cruise missile (ASCM) target. To this end, the necessity of ensuring accurate pointing control of the beam is required. The first part of this thesis focuses on the U.S. Navy's desired end-state and investigates the ability of feedback and feed-forward control...
Topics: Space debris., Free-Electron Laser, FEL, Pointing Accuracy, Space Communications, Orbital Debris...
Topics: NASA Technical Reports Server (NTRS), PEGASUS SATELLITES, SPACECRAFT REENTRY, ATMOSPHERIC ENTRY,...
An orbital debris sweeper is provided for removing particles from orbit which otherwise may impact and damage an orbiting spacecraft. The debris sweeper includes a central sweeper core which carries a debris monitoring unit, and a plurality of large area impact panels rotatable about a central sweeper rotational axis. In response to information from the debris monitoring unit, a computer determines whether individual monitored particles preferably impact one of the rotating panels or pass...
Topics: NASA Technical Reports Server (NTRS), IMPACT DAMAGE, SPACE DEBRIS, SPACECRAFT ORBITS, PATENTS,...
253
253
Jun 12, 2011
06/11
by
Wong, Oliver D.; Watkins, Anthony Neal; Ingram, JoAnne L
texts
eye 253
favorite 0
comment 0
This paper describes a proof of concept test to examine the feasibility of using pressure sensitive paint (PSP) to measure the pressure distributions on a rotor in hover. The test apparatus consisted of the US Army 2-meter Rotor Test Stand (2MRTS) and 15% scale swept tip rotor blades. Two camera/rotor separations were examined: 0.76 and 1.35 radii. The outer 15% of each blade was painted with PSP. Intensity and lifetime based PSP measurement techniques were attempted. Data were collected from...
Topics: SPACE DEBRIS, COMPUTERIZED SIMULATION, ASTRODYNAMICS, EARTH ORBITAL ENVIRONMENTS, TRAJECTORY...
The Satellite Situation Report is a listing of those satellites (objects) currently in orbit and those which have previously orbited the Earth. Some objects are too small or too far from the Earth's surface to be detected; therefore, the Satellite Situation Report does not include all manmade objects orbiting the Earth. Generally, satellites are classified as follows: (1) Payloads may contain one or more functioning or nonfunctioning experiments. Usually only the owners of the satellites know...
Topics: NASA Technical Reports Server (NTRS), ARTIFICIAL SATELLITES, CATALOGS (PUBLICATIONS), PAYLOADS,...
The Fastener Capture Plate technology was developed to solve the problem of capturing loose hardware and small fasteners, items that were not originally intended to be disengaged in microgravity, thus preventing them from becoming space debris. This technology was incorporated into astronaut tools designed and successfully used on NASA s Hubble Space Telescope Servicing Mission #4. The technology s ultimate benefit is that it allows a very time-efficient method for disengaging fasteners and...
Topics: NASA Technical Reports Server (NTRS), SPACE DEBRIS, MICROGRAVITY, FASTENERS, HUBBLE SPACE...
This slide presentation reviews the importance of Orbital debris engineering models. They are mathematical tools to assess orbital debris flux. It briefly reviews the history of the orbital debris engineering models, and reviews the new features in the current model (i.e., ORDEM2010).
Topics: NASA Technical Reports Server (NTRS), SPACE DEBRIS, DYNAMIC MODELS, MATHEMATICAL MODELS,...
308
308
Jun 13, 2011
06/11
by
Hill, Jo
texts
eye 308
favorite 0
comment 0
Topics covered include: Science drivers for X-ray polarimetry; Previous X-ray polarimetry designs; The photoelectric effect and imaging tracks; Micro-pattern gas polarimeter design concept. Further work includes: Verify results against simulator; Optimize pressure and characterize different gases for a given energy band; Optimize voltages for resolution and sensitivity; Test meshes with 80 micron pitch; Characterize ASIC operation; and Quantify quantum efficiency for optimum polarization...
Topics: GAMMA RAY OBSERVATORY, SPACE DEBRIS, SIMULATION, TRACKING NETWORKS, SPACE SHUTTLE ORBITERS, DATA...
The ability of a typical double-walled spacecraft structure to protect against penetration by high-velocity incident objects is reviewed. The hazards presented by meteoroids are compared to the current and potential hazards due to manmade orbiting objects. It is shown that the nature of the meteoroid number-mass relationship makes adequate protection for large space facilities a conceptually straightforward structural problem. The present level of manmade orbiting objects (an estimated 10,000...
Topics: NASA Technical Reports Server (NTRS), METEOROIDS, SPACE DEBRIS, COLLISIONS, EARTH ORBITS, HAZARDS,...
On 6 Dec. 1991 Kosmos 2163, a maneuverable Soviet spacecraft which had been in orbit for 58 days, experienced a major breakup at an altitude of approximately 210 km. Although numerous pieces of debris were created, the fragments decayed rapidly leaving no long-term impact on the near-Earth environment. The assessed cause of the event is the deliberate detonation of an explosive device. Details of this event are presented.
Topics: NASA Technical Reports Server (NTRS), FRAGMENTATION, MANEUVERABLE SPACECRAFT, SOVIET SPACECRAFT,...
286
286
May 21, 2011
05/11
by
Chuang, Shery L.; Doubek, Sharon; Haines, Richard F
texts
eye 286
favorite 0
comment 0
Limited spacecraft communication links call for users to investigate the potential use of video compression and multimedia technologies to optimize bandwidth allocations. The objective was to determine the transmission characteristics of multimedia data - motion video, text or bitmap graphics, and files transmitted independently and simultaneously over an ethernet local area network. Commercial desktop video teleconferencing hardware and software and Intel's proprietary Digital Video...
Topics: BUMPERS, SPACECRAFT CONFIGURATIONS, METEOROID PROTECTION, SPACE DEBRIS, SPACE STATIONS, THICKNESS,...
Orbital debris in Low Earth Orbit (LEO) is an international problem that threatens the success of future space ventures. An analysis of a wide variety of alternative solutions for active debris removal (ADR) has been performed. The solution selected is an efficient, effective, and executable solution to remove large debris in LEO, primarily spent rocket bodies. Removing large debris objects is a critical step in reducing the hazard from orbital debris, because of the large amount of medium and...
Topics: NASA Technical Reports Server (NTRS), LOW EARTH ORBITS, SPACE DEBRIS, COLLISIONS, HAZARDS,...
Hazard (slope stability) assessment for different sectors of volcano edifices was successfully obtained from volcanoes in North and South America. The assessment entailed Hyperion images to locate portions of the volcano that were hydrothermally altered to clay rich rocks with zones that were also rich in alunite and other minerals. The identified altered rock zones were field checked and sampled. The rock strength of these zones was calculated from the field and laboratory measurements....
Topics: NASA Technical Reports Server (NTRS), VOLCANOES, SPACE DEBRIS, DEFORMATION, HAZARDS, REMOTE...
Orbital debris is internationally recognized as an environmental issue which needs to be addressed today to preserve near-Earth space for future generations. All major space agencies are committed to mitigating the growth of the debris environment. Many commercial space system operators have responded positively to orbital debris mitigation principles and recommendations. Orbital debris mitigation measures are most cost-effective if included in the design development phase.
Topics: NASA Technical Reports Server (NTRS), ALTERNATING CURRENT, SPACE DEBRIS, COST EFFECTIVENESS,...
2,268
2.3K
May 23, 2011
05/11
by
NON
texts
eye 2,268
favorite 0
comment 0
The Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) is the most advanced imaging radar system to fly in Earth orbit. Carried in the cargo bay of the Space Shuttle Endeavour in April and October of 1994, SIR-C/X-SAR simultaneously recorded SAR data at three wavelengths (L-, C-, and X-bands; 23.5, 5.8, and 3.1 cm, respectively). The SIR-C/X-SAR Science Team consists of 53 investigator teams from more than a dozen countries. Science investigations were undertaken in the...
Topics: COMETS, ASTEROIDS, PROJECTILE CRATERING, SOLAR SYSTEM, TARGETS, ASTEROID DETECTION, SPACE DEBRIS,...
No abstract available
Topics: NASA Technical Reports Server (NTRS), SPACECRAFT LAUNCHING, SYSTEMS ENGINEERING, SPACE DEBRIS,...
