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Download or read book AFCRL Infrared Sky Survey written by Russell G. Walker and published by . This book was released on 1975 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AFCRL Infrared Sky Survey written by Russell G. Walker and published by . This book was released on 1975 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author: Russell G. Walker
Publisher:
Published: 1975
Total Pages: 166
ISBN-13:
DOWNLOAD EBOOKA survey of the sky in the intermediate infrared spectral region is reported. The objective was to obtain the brightness and spatial distribution of a representative sample of the types of celestial objects that emit strongly in the infrared. Of primary concern was the determination of the positions of unusual sources of emission with sufficient accuracy to enable them to be acquired by ground based telescopes for further detailed investigation.
Download or read book AFCRL Infrared Sky Survey written by Russell G. Walker and published by . This book was released on 1975 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: A survey of the sky in the intermediate infrared spectral region is reported. The objective was to obtain the brightness and spatial distribution of a representative sample of the types of celestial objects that emit strongly in the infrared. Of primary concern was the determination of the positions of unusual sources of emission with sufficient accuracy to enable them to be acquired by ground based telescopes for further detailed investigation.
Author: Russell G. Walker
Publisher:
Published: 1975
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKA survey of the sky in the intermediate infrared spectral region is reported. The objective was to obtain the brightness and spatial distribution of a representative sample of the types of celestial objects that emit strongly in the infrared. Of primary concern was the determination of the positions of unusual sources of emission with sufficient accuracy to enable them to be acquired by ground based telescopes for further detailed investigation.
Download or read book AFCRL Infrared Sky Survey written by Russell G. Walker and published by . This book was released on 1975 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A survey of the sky in the intermediate infrared spectral region is reported. The objective was to obtain the brightness and spatial distribution of a representative sample of the types of celestial objects that emit strongly in the infrared. Of primary concern was the determination of the positions of unusual sources of emission with sufficient accuracy to enable them to be acquired by ground based telescopes for further detailed investigation.
Download or read book Air Force Surveys in Geophysics written by and published by . This book was released on 1982 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author: Stephan D. Price
Publisher:
Published: 1978
Total Pages: 52
ISBN-13:
DOWNLOAD EBOOKThe AFGL probe borne infrared celestial survey experiments are designed to obtain the inertial aspect of the payload reference frame with an accuracly comparable to the spatial size of a resolution element in the infrared telescope. Constraining the axis of payload rotation to known inertial coordinates through maintaining lock onto a selected pole star with a star tracker co-aligned to the roll-axis, and by careful geometric alignment of the optical elements and dynamic balancing the payload, the desired accuracy was achieved. Further refinement in position was obtained from the stellar detections by the infrared sensor, with an ultimate knowledge of the inertial aspect being within 1.5 artc minutes root mean square deviation between the measured and catalogued positions for known infrared stars. The procedures used to obtain this accuracy are described. Also detailed is a method of aspect determination using only a star mapper with an N slit focal plane reticle. (Author).
Download or read book Aspect Determination for the AFGL Infrared Survey Experiments written by Stephan D. Price and published by . This book was released on 1978 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The AFGL probe borne infrared celestial survey experiments are designed to obtain the inertial aspect of the payload reference frame with an accuracly comparable to the spatial size of a resolution element in the infrared telescope. Constraining the axis of payload rotation to known inertial coordinates through maintaining lock onto a selected pole star with a star tracker co-aligned to the roll-axis, and by careful geometric alignment of the optical elements and dynamic balancing the payload, the desired accuracy was achieved. Further refinement in position was obtained from the stellar detections by the infrared sensor, with an ultimate knowledge of the inertial aspect being within 1.5 artc minutes root mean square deviation between the measured and catalogued positions for known infrared stars. The procedures used to obtain this accuracy are described. Also detailed is a method of aspect determination using only a star mapper with an N slit focal plane reticle. (Author).
Download or read book Instrumentation Papers written by and published by . This book was released on with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author: Stephan D. Price
Publisher:
Published: 1980
Total Pages: 174
ISBN-13:
DOWNLOAD EBOOKThe AFGL Infrared Sky Survey data have been processed to deconvolve the low frequency attenuation, restoring the signals from extended sources. The 11 and 20-micrometer scans which cover three quarters of the galactic plane have been analyzed, with lesser area covered at 4 and 27 micrometers. A detailed description is given of the instrumentation, the conduct of the experiment, and the data reduction procedures. The measured extended emission in the 3- to 30-micrometer region may be divided into several components. A number of discrete, extended sources are observed within 5 deg of the galactic plane, the majority of which are associated with HII regions. About 25 percent of these sources are not in the AFGL catalog. A large scale diffuse emission is centered on the galactic plane at longitudes less than 90 deg from the galactic center. The 11 to 20-micrometer color ratio of this emission is distinctly smaller in the direction of the Perseus external arm and the Sagittarius-Carina spiral than closer to the center (1
Download or read book An Infrared Survey of the Diffuse Emission Within 5° of the Galactic Plane written by Stephan D. Price and published by . This book was released on 1980 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The AFGL Infrared Sky Survey data have been processed to deconvolve the low frequency attenuation, restoring the signals from extended sources. The 11 and 20-micrometer scans which cover three quarters of the galactic plane have been analyzed, with lesser area covered at 4 and 27 micrometers. A detailed description is given of the instrumentation, the conduct of the experiment, and the data reduction procedures. The measured extended emission in the 3- to 30-micrometer region may be divided into several components. A number of discrete, extended sources are observed within 5 deg of the galactic plane, the majority of which are associated with HII regions. About 25 percent of these sources are not in the AFGL catalog. A large scale diffuse emission is centered on the galactic plane at longitudes less than 90 deg from the galactic center. The 11 to 20-micrometer color ratio of this emission is distinctly smaller in the direction of the Perseus external arm and the Sagittarius-Carina spiral than closer to the center (1
Download or read book Environmental Research Papers written by and published by . This book was released on with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1978 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
