LDEF satellite radiation analyses

final report, contract no. NAS8-39386

Publisher: Science Applications International Corp., Publisher: National Aeronautics and Space Administration, Publisher: National Technical Information Service, distributor in Prospect, Tenn, [Washington, DC, Springfield, Va

Written in English
Published: Downloads: 369
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  • Linear energy transfer (LET),
  • Accuracy.,
  • Ionizing radiation.,
  • Low earth orbits.,
  • Mathematical models.

Edition Notes

Statementby T.W. Armstrong, B.L. Colborn.
SeriesNASA contractor report -- NASA CR-203956.
ContributionsColborn, B. L., United States. National Aeronautics and Space Administration.
The Physical Object
Pagination1 v.
ID Numbers
Open LibraryOL15479188M

Abstract. Radiation biology in space is multifaceted. It comprises the measurement of radiation field parameters, study of interaction processes with materials of biological interest (including the development of special equipment suitable for flight conditions) as well as the investigation of radiation-related phenomena in biological systems, extending from molecules to the whole body. Analysis of the Radiation Mechanisms in and Design of Tightly-Coupled Antenna Arrays Terry Richard Vogler Dissertation submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Electrical and Computer Engineering William A. Davis, Chair. Short answer: no. Longer answer: No, excepting neutrinos none of the products of radioactive decay has the penetrating power to pass through the atmosphere, and neutrino detection is not something we can do from satellites. To elaborate, the immediate products of radioactive decay are (some set of, depending on the decay in question) fission fragments, electrons, positrons, . Nuclear Radiation Detection Technologies at PNNL. See Original Image. This one-meter resolution satellite image of Natori, Japan, was taken one day after an magnitude earthquake and resulting tsunami that struck the Oshika Peninsula on Ma This image was taken by GeoEye's IKONOS satellite on March 12 from miles in space.

"The Surface Solar Radiation Data Set - Heliosat (SARAH) is a satellite-based climatology of the solar surface irradiance (SIS), the surface direct normalized irradiance (DNI) and the effective cloud albedo (CAL) derived from satellite observations of the visible channels of the MVIRI and SEVIRI instruments onboard the geostationary Meteosat satellites. The latest maps produced by the satellite's Large Area Telescope (LAT) identified 1, cosmic gamma-ray sources. Although more than half of these astronomical objects are . 10 ITU-R Recommendation S, Satellite Antenna Radiation Pattern for use as a Design Objective in in the Fixed- Satellite Service employing Geostationary Satellites, Satellite interference evaluation: joint effect of modeling earth station locations and earth station antenna sidelobe gains as random variables. The Global Monitoring Laboratory conducts research that addresses three major challenges; greenhouse gas and carbon cycle feedbacks, changes in clouds, aerosols, and surface radiation, and recovery of stratospheric ozone.

  Thanks for the A2A. Satellites generally don't have to do much processing, there are many that do and the proposed constellations for internet access will likely need to do quite a bit. But most space systems don't need very sophisticated and lar. ANTI-SATELLITE WEAPONS (ASATS) The following is a brief introduction for the non-space weapons expert by a layperson gleaned primarily from university-level library and Internet resources and will provide a brief history of negotiated treaties, describe the early U.S. and Russian ASAT systems, describe the ‘current’ ASAT systems being developed, and describe . The Combined Release and Radiation Effects Satellite (CRRES) was launched into a geosynchronous transfer orbit (GTO) for a nominal three-year mission to investigate fields, plasmas, and energetic particles inside the Earth's magnetosphere. Radiation Damage Assessment in Satellite Microelectronics Volume 99 Number 4 July-August P. W. Marshall Naval Research Laboratory, Washington, DC sions and SFA, Inc., Landover, MD C. J. Dale SFA, Inc., Undover, MD and E. A. Burke Woburn, MA Calculations of the first and second moments uf displacement damagt;.

LDEF satellite radiation analyses Download PDF EPUB FB2

LDEF Satellite Radiation Analyses [Armstrong, T. W., Colborn, B. L., NASA Technical Reports Server (NTRS)] on *FREE* shipping on Author: T. Armstrong, B. Colborn. (SAIC) under contract NAS from the NASA Marshall Space Flight Center entitled "LDEF Satellite Radiation Analyses".

The basic objective of the study was to evaluate the accuracy of present models and computational methods for defining the ionizing radiation environment for. LDEF Satellite Radiation Analyses Science Applications International _tion An Employee-Owned Company by T.

Armstrong B. Colbom Work Performed for NASA Marshall Space Flight Center Space Sciences Laboratory, Astrophysics Branch Huntsville, AL FINAL REPORT Contract No.

NAS8 - March Route 2, Prospect, Tennessee 4. SUMMARY A detailed 3D mass model of the LDEF spacecraft and on board experiments was generated for ionizing radiation analyses.

This model allows shielding effects to be accurately accounted for in predictions made to compare with LDEF radiation measure- ments and in related assessments of environment model by: 2.

Get this from a library. LDEF satellite radiation analyses: final report, contract no. NAS [T W Armstrong; B L Colborn; United States. National Aeronautics and Space Administration.]. In Januarythe Long Duration Exposure Facility (LDEF), after five-and-one half years orbiting Earth, was retrieved during the STS space shuttle mission and returned to Earth for close examination and analysis.

The Earth Radiation Budget Satellite (ERBS) was a NASA scientific research satellite within NASA's ERBE (Earth Radiation Budget Experiment) Research Program - a three-satellite mission, designed to investigate the Earth 's radiation budget It also carried an instrument that studied stratospheric aerosol and gases.

ERBS was launched on October 5, by the Space Operator: NASA. Colborn B. and Armstrong T. () Mass model OF MATERIALS ON LDEF of the LDEF satellite spacecraft and experiments for ionizing radiation analyses. Radiat. Meas. 26, Cited by: 4. Shielding Model--The 3-D mass model developed for LDEF radiation analyses (ref.

9) was used. This model was extended for the present calculations to incorporate each of. the early s, including 57 experiments on the Long Duration Exposure Facility (LDEF), which was retrieved in after spending 69 months in LEO (de Groh et al., ). The ISS provides an ideal platform for long‑term space environment effects testing, particularly as experiments can be returned to Earth for postflight analyses.

LESSON 9 Radiation Analysis of a Space Satellite PATRAN Exercise Workbook - Release Equivalence the Satellite model and then verify the element boundaries. By equivalencing the model, all duplicate nodes will be removed. Hence, the finite element model represents the object as a single solid Size: KB.

The failure of FY-1 satellite, inincreased awareness of space radiation effects and enhanced monitoring in situ. From then on, Space Environment Monitors. Based on measurements of the impact craters on the LDEF satellite, the rate of accretion of cosmic dust on the present-day Earth is estimated to be 4 ± 2 × 10 10 g/yr (Love and Brownlee, ).

A somewhat higher infall rate of 7 to 25 × 10 10 g/yr has recently been estimated from osmium isotopes (Sharma et al., ).

Direct measurements of the flux of micrometeorites. Radiofrequency (RF) Radiation: Satellite Dish, Radar, Power Line, and Miscellaneous. and a previous exposure to microwave/radiofrequency radiation. The only consistently repeatable finding of bioeffect from microwave radiation is heating (as in a microwave oven).

This is the basis for the limitation of RF exposure in magnetic resonance imaging. Two types of space radiation / radiation transport analyses were performed. Analyses vary in their level of detail. Generation of general dose-depth curves based on industry standard AE8 / AP8 trapped radiation models, general target geometry, kernel, and ray-tracing methods.

Comparisons are presented for STK. I've got a large satellite dish on my garage, which is over 6 metres from my house. Firstly, do satellite dishes emit radiation.

I thought they just gather beams from satellites orbiting the earth. If they do emit radiation, is it strong enough to harm our health. Bearing in mind that the garage is detached from our house, at over 6 metres. The first experimental weather satellite, TIROS-I, was launched by the USA in After several years of experiments the satellites were gradually improved and better adapted to their specific uses.

17 years later, inthe European Space Agency launched Meteosat-1, the first satellite of the European meteorological satellite system. Satellite Radiation Environment Analysis System Junga Hwang, Dae-Kyu Shin, Gi-Jeong Kim, and Junhyun Lee Solar and Space Weather group, Korea Astronomy and Space science Institute (KASI) Daejeon, Korea Steeve Morley, Mike Henderson, Reiner Friedel, and Geoff Reeves Los Alamos National Laboratory (LANL), Los Alamos, New Mexico, USA.

In the 37 years since the launch of Sputnik 1, space operations have become an integral component of the world's economy, scientific activities, and security systems. Orbital debris is inextricably linked with these operations: debris is created in the course of these operations and is important because it poses a potential threat to future.

(1) The sun's radiation is the only source of attitude perturbation acting on the satellite. (2) The magnitude of the solar radiation pressure in the vicinity of the earth is constant for all positions of the earth along its orbit.

(3) The satellite's surface is homogeneous and has a reflectivity of Size: 1MB. Space Radiation Effect on Satellites AKIOKA Maki Solar activity and space environment is considered as fundamental and important factors for space system design and operation.

Space and solar radiation is widely known as a cause of malfunction of electronics, surface charging and discharging, and deterioration of materials of space Size: 1MB. Spacecraft System Failures and Anomalies Attributed to the Natural Space Environment August NASA Reference Publication K.L.

Bedingfield, R.D. Leach, and M.B. Alexander, Editor. Non-ionizing radiation can produce non-mutagenic effects such as inciting thermal energy in biological tissue that can lead to burns. Inthe International Agency for Research on Cancer (IARC) from the World Health Organization (WHO) released a statement adding RF electromagnetic fields (including microwave and millimetre waves) to their list of things which.

CCD Radiation Effects and Test Issues for Satellite Designers Review Draft Prepared by Cheryl J. Marshall (NASA-GSFC) and Paul W. Marshall (NASA-GSFC Multi-Engineering Disciplinary Support Contract Task ) 6 October, This work is sponsored by the NASA Electronic Parts and Packaging (NEPP).

S Satellite antenna radiation pattern for use as a design objective in the fixed-satellite service employing geostationary satellites Recommendation S.

The Possible direct use of satellite radiance measurements by the Atmospheric Radiation Measurement Program [Unknown.] on *FREE* shipping on qualifying offers. The Possible direct use of satellite radiance measurements by the Atmospheric Radiation Measurement ProgramAuthor.

Unknown. analysis of leo radiation environment and its. effects on spacecraft’s critical electronic devices.

luz maria martinez s. a thesis. submitted to the department of physical sciences. and the committee on graduate studies. in partial fulfillment of the requirements. for the degree of. master of science in engineering physics. 12/Cited by: 2. Nonionzing Radiation Exposure to Technicians at a Satellite Communications Facility Judith Eisenberg David Sylvain Srinivas Durgam Health Hazard Evaluation Report HETA U.S.

Department of Commerce Wallops Command and Data Acquisition Station Wallops, Virginia June DEPARTMENT OF HEALTH AND HUMAN SERVICES.

Development of a method for generating operational solar radiation maps from satellite data for a tropical environment. Solar Energy – CrossRef Google Scholar Lefévre M, Wald L and Diabaté L ()Cited by: Analysis of satellite derived beam and global solar radiation data Frank Vignola a,*, Peter Harlan a, Richard Perez b, Marek Kmiecik b a University of Oregon, Department of Physics, University of Oregon, Eugene, ORUnited States b ASRC the University of Albany, Fuller Road, Albany, NYUnited States Received 22 November ; received in.

Evaluating Surface Radiation Fluxes Observed From Satellites in the Southeastern Pacific Ocean R. T. Pinker1, B. Zhang1,2, R. A. Weller3, and W. Chen1 1Department of Atmospheric and Oceanic Science, University of Maryland, College Park, MD, USA, 2NOAA NCEP Environmental Modeling Center, College Park, MD, USA, 3Woods Hole Oceanographic Institution, Woods Cited by: 2.Lecture 28 Antennas and Radiation and the Hertzian Dipole In this lecture you will learn: • Generation of radiation by oscillating charges and currents • Hertzian dipole antenna ECE – Fall – Farhan Rana – Cornell University Maxwell’s Equations and Radiation Maxwell’s equation predict outgoing radiation from sinusoidallyFile Size: KB.Overview.

Electromagnetic radiation is the very basis for remote sensing technology. Everything emits electromagnetic radiation. More specifically, all objects with a temperature above absolute zero emit e radiation can transport energy even without a medium, it is the only way in which the earth interacts with the rest of the universe.