224
224
Jul 12, 2010
07/10
by
Rahe, J
texts
eye 224
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comment 0
To assist scientists studying comets and their interaction with the interplanetary medium, compilations of existing cometary observations and data plans for additional publication are reported. The works cited include updates and/or supplements to: (1) the Catalogue of Cometary Orbits, (2) Physical Characteristics of Comets, (3) the Atlas of Representative Cometary Spectra, (4) the Atlas Cometas-Viento Solar, (5) the Isophotometrischer Atlas der Kometen, and (6) the Atlas of Cometary Forms. An...
Topics: PIONEER VENUS SPACECRAFT, SPACECRAFT PROPULSION, TELEMETRY, SPACECRAFT CONFIGURATIONS, SPACECRAFT...
473
473
Jul 11, 2010
07/10
by
NON
texts
eye 473
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comment 0
No Abstract Available
Topics: AEROSPACE ENGINEERING, SPACECRAFT DESIGN, SPACECRAFT DOCKING, SPACECRAFT GUIDANCE, SPACECRAFT...
184
184
Jul 12, 2010
07/10
by
Allen, F. G.; Gale, W. A.; Kaufman, L
texts
eye 184
favorite 1
comment 0
No Abstract Available
Topics: SPACE SHUTTLES, SPACECRAFT CONFIGURATIONS, SPACECRAFT ORBITS, SPACECRAFT MANEUVERS, SPACECRAFT...
306
306
Jul 7, 2010
07/10
by
Conway, J. B.; Collins, J. F
texts
eye 306
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comment 0
No Abstract Available
Topics: COMMAND SERVICE MODULES, SPACECRAFT CONTROL, SPACECRAFT PROPULSION, HANDBOOKS, SPACECRAFT...
790
790
Jun 15, 2011
06/11
by
NON
texts
eye 790
favorite 0
comment 0
No Abstract Available
Topics: MARINER C SPACECRAFT, MARINER VENUS 67 SPACECRAFT, VOYAGER PROJECT, SPACECRAFT CONTROL, SPACECRAFT...
56
56
image
eye 56
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December 18, 2002 -- NASA Testing K9 Rover in New "Marscape" for Future Missions
Topic: Spacecraft
Source: http://mars.jpl.nasa.gov/gallery/spacecraft/dec18-02.html
Dreams, machines and music can take us to the far reaches of our imagination. SPACECRAFT, the group, launched it's CD debut in 1997 with a critically acclaimed self-titled CD on the small and independent, European/American, Lektronic Soundscapes record label. Billboard gave their next release, "Hummel", a Critics Choice review in 1998. "Earthtime Tapestry" was named "1999 Electronic Album of the Year" by New Age Magazine. The next project landed Tony Gerber, Giles...
Topic: SPACECRAFT
216
216
May 23, 2011
05/11
by
Kurth, W. S.; Bolton, S. J.; Gurnett, D. A.; Levin, S
texts
eye 216
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During the first Galileo flyby of Ganymede, Jovian radio emissions in the frequency range of 700 kHz to 5.6 MHz were completely occulted by the satellite. We take advantage of this serendipitous observation to determine the location of the radio emission source relative to Jupiter. The evidence suggests that the apparent source is along an L greater than or approximately equal to 7 magnetic field line near the central meridian longitude (approximately 160 deg) of the spacecraft and at 1 to 3...
Topics: ATMOSPHERIC CHEMISTRY, REMOTE SENSING, SPACECRAFT CONTROL, SPACECRAFT DESIGN, SPACECRAFT...
204
204
May 27, 2011
05/11
by
Paulson, John W., Jr.; Kumar, Ajay; Kegelman, Jerome T
texts
eye 204
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comment 0
After 4 years of existence, the Langley WTE is alive and growing. Significant improvements in the operation of wind tunnels have been demonstrated and substantial further improvements are expected when we are able to truly address and integrate all the processes affecting the wind tunnel testing cycle.
Topics: SPACECRAFT LAUNCHING, SPACECRAFT DESIGN, SPACECRAFT ENVIRONMENTS, SPACECRAFT INSTRUMENTS, SHROUDS,...
"December 2000."
Topic: Spacecraft
157
157
Oct 7, 2015
10/15
by
Ham, William K.
texts
eye 157
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comment 0
"December 2000."
Topic: Spacecraft
896
896
Jun 27, 2010
06/10
by
Clark, J. W.; Mc Lafferty, G. H
texts
eye 896
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comment 0
Nuclear light bulb reactor research, including radiant energy source tests, transparent wall model tests, and propellant heating experiments
Topics: SPACECRAFT DESIGN, SPACECRAFT PERFORMANCE, SPACECRAFT RELIABILITY, RESEARCH AND DEVELOPMENT
The results of a student project to design a lunar lander in the context of a specifically defined mission are presented. The Lunar Scout will be launched from Cape Canaveral, Florida onboard a Delta II launch vehicle. The Delta II will carry the lander and its payload to a 1367 km orbit. Once it reaches that altitude, a STAR 48A solid rocket motor will kick the spacecraft into a lunar trajectory. After burnout of the lunar insertion motor, it will be jettisoned from the spacecraft. The flight...
Topics: NASA Technical Reports Server (NTRS), LUNAR SPACECRAFT, SPACECRAFT DESIGN, UNIVERSITY PROGRAM,...
The Pioneer Venus spacecraft primary and backup operational modes and operational limitations for maneuvers, roll references transfer, attitude determination, spacecraft power discipline and spacecraft thermal discipline, are described. The functions and operations of the large and small probes, as well detailed performance in the normal operating modes and backup modes are presented.
Topics: NASA Technical Reports Server (NTRS), PIONEER VENUS SPACECRAFT, SPACECRAFT CONFIGURATIONS,...
521
521
Jul 9, 2010
07/10
by
Berhault, J. P.; Sunyach, M.; Arbey, H.; Comte-Bellot, G
texts
eye 521
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The wall lining of the chamber consists of successive layers of glass wool panels, of densities 70 kg/cu m and 38 kg/cu m. The former are 80 cm long, the latter, 40, 50, 60 or 70 cm long. The dimensions of the open space in the chamber are: 6.10 m (length) x 4.60 m (width) x 3.80 m (height). The acoustic characteristics of the chamber were examined by measuring the sound pressure level p as a function of the distance r from different sources. The deviations from the decay law are apparent...
Topics: APOLLO SPACECRAFT, INTERNATIONAL COOPERATION, SOYUZ SPACECRAFT, DECOMPRESSION SICKNESS, SPACECRAFT...
265
265
Jun 27, 2010
06/10
by
Mckannan, E. C.; Krupnick, A. C.; Griffin, R. N.; Mccreight, L. R
texts
eye 265
favorite 0
comment 0
Fluid electrophoresis separation based on motion of particles in electric field for demonstrating near-zero-gravity condition in space - Apollo 14
Topics: SOYUZ SPACECRAFT, SPACE STATIONS, SPACECRAFT DOCKING, SPACECRAFT LAUNCHING, SPACECRAFT LANDING,...
1,183
1.2K
texts
eye 1,183
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No abstract available
Topics: ATTITUDE CONTROL, SPACECRAFT COMMUNICATION, SPACECRAFT POWER SUPPLIES, SPACECRAFT LAUNCHING
Source: http://hdl.handle.net/2060/19620001115
313
313
Jun 18, 2010
06/10
by
Viktorov, D
texts
eye 313
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comment 0
Design instrumentation, and operation of Voskhod II manned spacecraft - maximum distance of extravehicular movements
Topics: DISTANCE, EXTRAVEHICULAR ACTIVITY, SPACECRAFT DESIGN, VOSKHOD MANNED SPACECRAFT, VOSKHOD 2...
The Skylab's Saturn Workshop mission performance is presented. Experiments were conducted to determine man's ability to live and work in space for extended periods, to make sun and earth investigations, and to advance science and technology in several areas of space applications. Performance is compared with design parameters, and problem causes and solutions are treated. The Saturn Workshop successfully performed its role and advanced the technology of space systems design.
Topics: NASA Technical Reports Server (NTRS), SATURN WORKSHOPS, SKYLAB PROGRAM, SPACE MISSIONS, SPACE...
411
411
Jun 15, 2011
06/11
by
NON
texts
eye 411
favorite 0
comment 0
No Abstract Available
Topics: MARINER C SPACECRAFT, MARS PROBES, SPACECRAFT CONTROL, SPACECRAFT DESIGN, SPACECRAFT GUIDANCE,...
222
222
Jun 1, 2010
06/10
by
Nesterov, V. YE.; Pisarenko, N. F.; Savenko, I. A.; Shavrin, P. I
texts
eye 222
favorite 1
comment 0
Monitoring cosmic radiation level during Vostok space flights
Topics: COSMIC RAYS, VOSTOK SPACECRAFT, VOSTOK 3 SPACECRAFT, VOSTOK 4 SPACECRAFT, VOSTOK 5 SPACECRAFT,...
22
22
Mar 15, 2020
03/20
by
Shayler, David, 1955-
texts
eye 22
favorite 1
comment 0
64 pages : 38 cm
Topics: Challenger (Spacecraft), Challenger (Spacecraft) -- Accidents, Accidents, Space shuttles:...
262
262
Jul 5, 2010
07/10
by
KARZHAVIN, Y. A.; MATYUSHIN, A. T.; MATYUSHIN, V. T.; KHACHATURYAN, M. N
texts
eye 262
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comment 0
A METHOD IS DESCRIBED FOR THE PASSIVE LOCATION OF AN ULTRASONIC SIGNAL GENERATED BY A SPARK IN THE CHAMBER ELECTRODE. THE MATERIALS EMPLOYED AND THE CIRCUIT DIAGRAMS ARE PRESENTED.
Topics: SPACE STATIONS, SPACECRAFT DESIGN, SPACECRAFT MODULES, MISSION PLANNING, SPACECRAFT COMPONENTS
863
863
texts
eye 863
favorite 0
comment 0
No Abstract Available
Topics: ELECTRIC GENERATORS, INTERPLANETARY SPACECRAFT, SPACECRAFT POWER SUPPLIES, PAYLOADS, SPACECRAFT...
601
601
May 6, 2010
05/10
by
Geissler, E. D
texts
eye 601
favorite 0
comment 0
Spacecraft guidance - vehicle trajectories
Topics: SPACECRAFT GUIDANCE, TRAJECTORIES, SPACECRAFT GUIDANCE, TRAJECTORY
911
911
Jul 11, 2010
07/10
by
NON
texts
eye 911
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comment 0
MEDICAL, SOCIAL, PSYCHOLOGICAL, AND PHYSIOLOGICAL PROBLEMS RAISED BY NOISE POLLUTION ARE REPORTED. MEDICAL ASPECTS OF AIRPORT NOISE, NOISE INDUCED HEARING LOSSES IN VARIOUS INDUSTRIES AND NOISE ANNOYANCE ARE DISCUSSED. THERE ARE ALSO SEVERAL ARTICLES ON THE BIOPHYSICAL AND MEDICAL EFFECTS OF ULTRASOUNDS.
Topics: FLEXIBLE BODIES, SPACECRAFT CONTROL, SPACECRAFT MOTION, SPACECRAFT STABILITY, COMPUTER AIDED...
479
479
Jul 26, 2010
07/10
by
Abbott, Terence S
texts
eye 479
favorite 1
comment 0
The general topic was in the area of display design alternatives for improved man-machine performance. The intent was to define and assess a display design concept oriented toward providing this task-oriented information. The major focus of this concept deals with the processing of data into parameters that are more relevant to the task of the human operator. Closely coupled to this concept of relevant information is the form or manner in which this information is actually presented....
Topics: EVACUATING (TRANSPORTATION), MISSION PLANNING, SPACECRAFT PROPULSION, SPACECRAFT STRUCTURES,...
397
397
Jun 15, 2011
06/11
by
NON
texts
eye 397
favorite 1
comment 0
No Abstract Available
Topics: MARINER C SPACECRAFT, MARINER VENUS 67 SPACECRAFT, MARS PROBES, SPACECRAFT PROPULSION, VOYAGER...
395
395
Jul 12, 2010
07/10
by
NON
texts
eye 395
favorite 0
comment 0
No Abstract Available
Topics: APOLLO PROJECT, SPACECRAFT INSTRUMENTS, SPACECRAFT GUIDANCE, SPACECRAFT PROPULSION, THERMAL...
838
838
Jul 9, 2010
07/10
by
MALKEVICH, M. S
texts
eye 838
favorite 0
comment 0
METHODS OF INTERPRETATION AND RESULTS OF MEASUREMENTS OF THE OPTICAL CHARACTERISTICS OF THE EARTH, OBTAINED BY MEANS OF ARTIFICIAL SATELLITES WITH THE OBJECT OF DETERMINING THE PHYSICAL PARAMETERS OF THE ATMOSPHERE, THE CLOUDS, AND THE EARTH'S SURFACE ARE DISCUSSED. THE METHODS ARE BASED ON THE USE OF A PRIORI STATISTICAL CHARACTERISTICS OF THE STRUCTURE OF FIELDS OF THE EARTH'S ATMOSPHERIC PARAMETERS. METHODS ARE PRESENTED FOR SOLVING THE PROBLEMS OF DETERMINING THE TEMPERATURE OF THE GROUND...
Topics: RESEARCH, SALYUT SPACE STATION, SPACECRAFT INSTRUMENTS, COSMONAUTS, SPACEBORNE PHOTOGRAPHY,...
The operational characteristics of the multiprobe system and its subsystem are described. System level, description of the nominal phases, system interfaces, and the capabilities and limitations of system level performance are presented. Bus spacecraft functional and operational descriptions at the subsystem and unit level are presented. The subtleties of nominal operation as well as detailed capabilities and limitations beyond nominal performance are discussed. A command and telemetry logic...
Topics: NASA Technical Reports Server (NTRS), PIONEER VENUS SPACECRAFT, SPACECRAFT CONTROL, SPACECRAFT...
236
236
Jul 11, 2010
07/10
by
Lawing, P. L
texts
eye 236
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comment 0
The probable descent operating conditions for a hypersonic air-breathing research airplane were examined. Descents selected were cruise angle of attack, high dynamic pressure, high lift coefficient, turns, and descents with drag brakes. The descents were parametrically exercised and compared from the standpoint of cold-wall (367 K) aircraft heat load. The descent parameters compared were total heat load, peak heating rate, time to landing, time to end of heat pulse, and range. Trends in total...
Topics: APOLLO SOYUZ TEST PROJECT, SPACECRAFT COMPONENTS, APOLLO SPACECRAFT, INTERNATIONAL COOPERATION,...
511
511
Jul 12, 2010
07/10
by
NON
texts
eye 511
favorite 0
comment 0
No Abstract Available
Topics: APOLLO SPACECRAFT, SPACECRAFT CONFIGURATIONS, SPACECRAFT DESIGN, DOCUMENTATION, PROJECT MANAGEMENT,...
409
409
Jul 6, 2010
07/10
by
Bright, C. W.; Lockhart, B. J
texts
eye 409
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comment 0
In the search for superior materials from which to make gaskets for pneumatic and hydraulic systems, promising materials were selected and tested. The testing was conducted in two phases. Those materials that passed the tests of Phase 1 were tested in Phase 2, and categorized in the order of preference.
Topics: MAN MACHINE SYSTEMS, SPACE SHUTTLES, SPACECRAFT CONTROL, SPACECRAFT LANDING, AERODYNAMIC...
394
394
Jul 12, 2010
07/10
by
Solon, M
texts
eye 394
favorite 0
comment 0
No Abstract Available
Topics: APOLLO SPACECRAFT, SPACECRAFT COMPONENTS, SPACECRAFT DESIGN, EQUIPMENT SPECIFICATIONS, FABRICATION,...
438
438
texts
eye 438
favorite 0
comment 0
No Abstract Available
Topics: APOLLO SPACECRAFT, COMMAND MODULES, SPACECRAFT COMPONENTS, SPACECRAFT PERFORMANCE, CIRCUIT...
258
258
Jul 26, 2010
07/10
by
Gunzburger, Max D.; Peterson, Janet S
texts
eye 258
favorite 0
comment 0
No Abstract Available
Topics: FLIGHT CHARACTERISTICS, PROPULSION SYSTEM PERFORMANCE, SPACECRAFT LAUNCHING, SPACECRAFT...
265
265
May 21, 2011
05/11
by
Regler, Hans; Ruede, Ulric
texts
eye 265
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,...
1,136
1.1K
Jul 12, 2010
07/10
by
Helsel, R. W
texts
eye 1,136
favorite 1
comment 0
No Abstract Available
Topics: APOLLO SPACECRAFT, MISSION PLANNING, SPACECRAFT CONFIGURATIONS, EQUIPMENT SPECIFICATIONS,...
343
343
Jul 26, 2010
07/10
by
Leach, Rodman; Greeley, Ronald; Pollack, Jame
texts
eye 343
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comment 0
An open circuit wind tunnel designed to operate in a large vacuum chamber was built at NASA-Ames to investigate saltation threshold, flux, deflation rates, and other aeolian phenomena on the planet Mars. The vacuum chamber will operate at pressures as low as 4 mbar, and the tunnel operates at windspeeds as high as 150 m/sec. Either air or CO2 can be used as a working fluid. It was found that, to a first order approximation, the same dynamic pressure was required at Martian pressure to entrain...
Topics: EVACUATING (TRANSPORTATION), MISSION PLANNING, SPACECRAFT COMMUNICATION, SPACECRAFT PROPULSION,...
53
53
Nov 1, 2010
11/10
by
Branley, Franklyn Mansfield, 1915-2002
texts
eye 53
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Includes bibliographical references (p. 49-50) and index
Topic: Magellan (Spacecraft)
233
233
May 28, 2011
05/11
by
Lake, Mark S.; Phelps, James E.; Dyer, Jack E.; Caudle, David A.; Tam, Anthony; Escobedo, Javier; Kasl, Eldon P
texts
eye 233
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comment 0
NASA Langley Research Center, Composite Optics, Inc., and Nyma/ADF have developed jointly a deployable primary mirror for space telescopes that combines over five years of research on deployment of optical-precision structures and over ten years of development of fabrication techniques for optical-precision composite mirror panels and structures. The deployable mirror is directly applicable to a broad class of non-imaging ''lidar'' (light direction and ranging) telescopes whose figure-error...
Topics: GRAVITY PROBE B, SPACECRAFT CONFIGURATIONS, MAGNETIC DISTURBANCES, GRAVITATIONAL INSTABILITY,...
69
69
image
eye 69
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Spacecraft Operations
Topic: Spacecraft Operations
Source: http://mars.jpl.nasa.gov/odyssey/gallery/spacecraft/scops.html
At various time concerns have been expressed that rapid decompressions of compartments of gas pockets and thermal blankets during spacecraft launches may have caused pressure differentials across their walls sufficient to cause minor structural failures, separations of adhesively-joined parts, ballooning, and flapping of blankets. This paper presents a close form equation expressing the expected pressure differentials across the walls of a compartment as a function of the external to the volume...
Topics: NASA Technical Reports Server (NTRS), SPACECRAFT LAUNCHING, SPACECRAFT COMPONENTS, SPACECRAFT...
370
370
Jul 12, 2010
07/10
by
NON
texts
eye 370
favorite 0
comment 0
No Abstract Available
Topics: APOLLO SPACECRAFT, SPACECRAFT DESIGN, WEIGHT ANALYSIS, SPACECRAFT STRUCTURES, STRUCTURAL WEIGHT,...
965
965
Jul 12, 2010
07/10
by
NON
texts
eye 965
favorite 0
comment 0
No Abstract Available
Topics: APOLLO SPACECRAFT, RELIABILITY ENGINEERING, SPACECRAFT RELIABILITY, PERFORMANCE TESTS, SPACECRAFT...
275
275
Dec 7, 2009
12/09
by
NASA
image
eye 275
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After the hatch "Liberty Bell 7" opened prematurely, gallons of seawater entered the spacecraft. A helicopter recovery team attempted to empty the water, as seen in this photo. Seconds after this picture was taken, the Marine helicopter dropped the spacecraft because it was too heavy to continue lifting, and the capsule sank to the ocean floor. Astronaut Virgil I. Grissom was still in the water at the time, and his head is seen bobbing next to the capsule. Grissom almost drowned, but...
Topics: Spacecraft Landings, Mercury-Program, Mercury-Gemini Spacecraft
Source: http://grin.hq.nasa.gov/ABSTRACTS/GPN-2002-000047.html
1,004
1.0K
Jul 12, 2010
07/10
by
Kleckner, R. J.; Pirvics, J
texts
eye 1,004
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comment 0
The models and associated mathematics used within the SPHERBEAN computer program for prediction of the thermomechanical performance characteristics of high speed lubricated double row spherical roller bearings are presented. The analysis allows six degrees of freedom for each roller and three for each half of an optionally split cage. Roller skew, free lubricant, inertial loads, appropriate elastic and friction forces, and flexible outer ring are considered. Roller quasidynamic equilibrium is...
Topics: INTELSAT SATELLITES, PRELAUNCH SUMMARIES, SPACECRAFT CONFIGURATIONS, SPACECRAFT LAUNCHING, ATLAS...
This document presents the solar electric propulsion (SEP) concept design developed as part of the Space Transfer Concepts and Analysis for Exploration Missions (STCAEM) study. The evolution of the SEP concept is described along with the requirements, guidelines and assumptions for the design. Operating modes and options are defined and a systems description of the vehicle is presented. Artificial gravity configuration options and space and ground support systems are discussed. Finally, an...
Topics: NASA Technical Reports Server (NTRS), INTERPLANETARY SPACECRAFT, LUNAR SPACECRAFT, SOLAR ELECTRIC...
525
525
Jul 11, 2010
07/10
by
Falarski, M. D.; Koenig, D. G
texts
eye 525
favorite 0
comment 0
No Abstract Available
Topics: RANGER LUNAR PROBES, SPACECRAFT DESIGN, SURVEYOR LUNAR PROBES, SPACECRAFT GUIDANCE, SPACECRAFT...
