NASA Logo, External Link
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed AddThis share icon
 

Record Details

Record 1 of 8699
Recent Advances in Video Meteor Photometry
Author and Affiliation:
Swift, Wesley R.(NASA Marshall Space Flight Center, Huntsville, AL, United States)
Suggs, Robert M.(NASA Marshall Space Flight Center, Huntsville, AL, United States)
Meachem, Terry(NASA Marshall Space Flight Center, Huntsville, AL, United States)
Cooke, William J.(NASA Marshall Space Flight Center, Huntsville, AL, United States)
Abstract: One of the most common (and obvious) problems with video meteor data involves the saturation of the output signal produced by bright meteors, resulting in the elimination of such meteors from photometric determinations. It is important to realize that a "bright" meteor recorded by intensified meteor camera is not what would be considered "bright" by a visual observer - indeed, many Generation II or III camera systems are saturated by meteors with a visual magnitude of 3, barely even noticeable to the untrained eye. As the relatively small fields of view (approx.30 ) of the camera systems captures at best modest numbers of meteors, even during storm peaks, the loss of meteors brighter than +3 renders the determination of shower population indices from video observations even more difficult. Considerable effort has been devoted by the authors to the study of the meteor camera systems employed during the Marshall Space Flight Center s Leonid ground-based campaigns, and a calibration scheme has been devised which can extend the useful dynamic range of such systems by approximately 4 magnitudes. The calibration setup involves only simple equipment, available to amateur and professional, and it is hoped that use of this technique will make for better meteor photometry, and move video meteor analysis beyond the realm of simple counts.
Publication Date: Jul 01, 2003
Document ID:
20030069020
(Acquired Oct 03, 2003)
Subject Category: INSTRUMENTATION AND PHOTOGRAPHY
Document Type: Preprint
Meeting Information: 2003 Leonid MAC Conference; 27-30 Aug. 2003; Moffett Field, CA; United States
Financial Sponsor: NASA Marshall Space Flight Center; Huntsville, AL, United States
NASA Marshall Space Flight Center; Huntsville, AL, United States
Organization Source: NASA Marshall Space Flight Center; Huntsville, AL, United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: PHOTOMETRY; VIDEO DATA; METEOROIDS; DYNAMIC RANGE; CALIBRATING; CAMERAS
Availability Source: Other Sources
Availability Notes: Abstract Only
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: August 22, 2011
Contact Us