The Resource Radar investigation of asteroids, Steven J. Ostro, principal investigator
Radar investigation of asteroids, Steven J. Ostro, principal investigator
Resource Information
The item Radar investigation of asteroids, Steven J. Ostro, principal investigator represents a specific, individual, material embodiment of a distinct intellectual or artistic creation found in Indiana State Library.This item is available to borrow from 1 library branch.
Resource Information
The item Radar investigation of asteroids, Steven J. Ostro, principal investigator represents a specific, individual, material embodiment of a distinct intellectual or artistic creation found in Indiana State Library.
This item is available to borrow from 1 library branch.
- Summary
- "For 80 Sappho, 356 Liguria, 694 Ekard, and 2340 Hathor, data were taken simultaneously in the same sense of circular polarization as transmitted (SC) as well as in the opposite (OC) sense. Graphs show the average OC and SC radar echo power spectra soothed to a resolution of EFB Hz and plotted against Doppler frequency. Radar observations of the peculiar object 2201 Oljato reveal an unusual set of echo power spectra. The albedo and polarization ratio remain fairly constant but the bandwidths range from approximately 0.8 Hz to 1.4 Hz and the spectral shapes vary dramatically. Echo characteristics within any one date's approximately 2.5-hr observation period do not fluctuate very much. Laboratory measurements of the radar frequency electrical properties of particulate metal-plus-silicate mixtures can be combined with radar albedo estimates to constrain the bulk density and metal weight, fraction in a hypothetical asteroid regolith having the same particle size distribution as lab samples"--NTIS abstract
- Language
- eng
- Extent
- 10 unnumbered pages
- Note
- "Prepared July 1984."
- Label
- Radar investigation of asteroids
- Title
- Radar investigation of asteroids
- Statement of responsibility
- Steven J. Ostro, principal investigator
- Language
- eng
- Summary
- "For 80 Sappho, 356 Liguria, 694 Ekard, and 2340 Hathor, data were taken simultaneously in the same sense of circular polarization as transmitted (SC) as well as in the opposite (OC) sense. Graphs show the average OC and SC radar echo power spectra soothed to a resolution of EFB Hz and plotted against Doppler frequency. Radar observations of the peculiar object 2201 Oljato reveal an unusual set of echo power spectra. The albedo and polarization ratio remain fairly constant but the bandwidths range from approximately 0.8 Hz to 1.4 Hz and the spectral shapes vary dramatically. Echo characteristics within any one date's approximately 2.5-hr observation period do not fluctuate very much. Laboratory measurements of the radar frequency electrical properties of particulate metal-plus-silicate mixtures can be combined with radar albedo estimates to constrain the bulk density and metal weight, fraction in a hypothetical asteroid regolith having the same particle size distribution as lab samples"--NTIS abstract
- Cataloging source
- COD
- http://library.link/vocab/creatorName
- Ostro, Steven J
- Funding information
- NASA grant
- Government publication
- federal national government publication
- Illustrations
- illustrations
- Index
- no index present
- Literary form
- non fiction
- Nature of contents
- technical reports
- Period covered
- July 1, 1983 - December 31, 1983
- http://library.link/vocab/relatedWorkOrContributorName
-
- Cornell University
- United States
- Series statement
- NASA-CR
- Series volume
- 175350
- http://library.link/vocab/subjectName
-
- Asteroids
- Radar in astronomy
- Radar cross sections
- Type of report
- Semi-annual status report;
- Label
- Radar investigation of asteroids, Steven J. Ostro, principal investigator
- Note
- "Prepared July 1984."
- Base of film
- safety base undetermined
- Carrier category
- microfiche
- Carrier category code
- he
- Carrier MARC source
- rdacarrier
- Color
- black and white
- Content category
- text
- Content type code
- txt
- Content type MARC source
- rdacontent
- Control code
- 17580247
- Dimensions
- 28 cm.
- Dimensions
- 4x6 in. or 11x15 cm.
- Emulsion on film
- diazo
- Extent
- 10 unnumbered pages
- Form of item
- microfiche
- Generation
- service copy
- Media category
- microform
- Media MARC source
- rdamedia
- Media type code
- h
- Other physical details
- illustrations
- Positive negative aspect
- negative
- http://bibfra.me/vocab/marc/reductionRatio
- 02
- ReductionRatioRange
- normal reduction
- Reproduction note
- Microfiche.
- Specific material designation
- microfiche
- Label
- Radar investigation of asteroids, Steven J. Ostro, principal investigator
- Note
- "Prepared July 1984."
- Base of film
- safety base undetermined
- Carrier category
- microfiche
- Carrier category code
- he
- Carrier MARC source
- rdacarrier
- Color
- black and white
- Content category
- text
- Content type code
- txt
- Content type MARC source
- rdacontent
- Control code
- 17580247
- Dimensions
- 28 cm.
- Dimensions
- 4x6 in. or 11x15 cm.
- Emulsion on film
- diazo
- Extent
- 10 unnumbered pages
- Form of item
- microfiche
- Generation
- service copy
- Media category
- microform
- Media MARC source
- rdamedia
- Media type code
- h
- Other physical details
- illustrations
- Positive negative aspect
- negative
- http://bibfra.me/vocab/marc/reductionRatio
- 02
- ReductionRatioRange
- normal reduction
- Reproduction note
- Microfiche.
- Specific material designation
- microfiche
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<div class="citation" vocab="http://schema.org/"><i class="fa fa-external-link-square fa-fw"></i> Data from <span resource="http://link.library.in.gov/portal/Radar-investigation-of-asteroids-Steven-J./kwL4ymSjqaI/" typeof="Book http://bibfra.me/vocab/lite/Item"><span property="name http://bibfra.me/vocab/lite/label"><a href="http://link.library.in.gov/portal/Radar-investigation-of-asteroids-Steven-J./kwL4ymSjqaI/">Radar investigation of asteroids, Steven J. Ostro, principal investigator</a></span> - <span property="potentialAction" typeOf="OrganizeAction"><span property="agent" typeof="LibrarySystem http://library.link/vocab/LibrarySystem" resource="http://link.library.in.gov/"><span property="name http://bibfra.me/vocab/lite/label"><a property="url" href="http://link.library.in.gov/">Indiana State Library</a></span></span></span></span></div>
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<div class="citation" vocab="http://schema.org/"><i class="fa fa-external-link-square fa-fw"></i> Data from <span resource="http://link.library.in.gov/portal/Radar-investigation-of-asteroids-Steven-J./kwL4ymSjqaI/" typeof="Book http://bibfra.me/vocab/lite/Item"><span property="name http://bibfra.me/vocab/lite/label"><a href="http://link.library.in.gov/portal/Radar-investigation-of-asteroids-Steven-J./kwL4ymSjqaI/">Radar investigation of asteroids, Steven J. Ostro, principal investigator</a></span> - <span property="potentialAction" typeOf="OrganizeAction"><span property="agent" typeof="LibrarySystem http://library.link/vocab/LibrarySystem" resource="http://link.library.in.gov/"><span property="name http://bibfra.me/vocab/lite/label"><a property="url" href="http://link.library.in.gov/">Indiana State Library</a></span></span></span></span></div>
