HIGH SPATIAL AND TEMPORAL RESOLUTION OPTICAL SEARCH FOR EVIDENCE OF METEOROID FRAGMENTATION

A digital image intensified CCD camera with an electronically gated image intensifier was used to produce very short duration images of meteors. The observational system employed a 0.40 m F/4.5 Newtonian telescope to obtain high spatial resolution. A second intensified CCD camera was used to yield h...

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Bibliographic Details
Published in:Earth, moon, and planets moon, and planets, 2004-12, Vol.95 (1-4), p.587-593
Main Authors: Hawkes, R. L., Brown, P. G., Kaiser, N. R., Faloon, A. J., Hill, K. A., Rogers, L. A.
Format: Article
Language:English
Subjects:
Cameras
CCD cameras
Digital imaging
Image intensifiers
Meteoroids
Meteors
Meteors & meteorites
Parallax
Spatial resolution
Temporal resolution
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Summary:A digital image intensified CCD camera with an electronically gated image intensifier was used to produce very short duration images of meteors. The observational system employed a 0.40 m F/4.5 Newtonian telescope to obtain high spatial resolution. A second intensified CCD camera was used to yield height information using parallax. At a typical meteor height one pixel (for the vertically oriented system) corresponded to about 1.1 m. A sampling of 59 mainly sporadic meteors was analyzed. There is clear variability from meteor to meteor, with many meteors (nearly 50%) showing only a small amount of wake, while some meteors (approximately 20%) have the off segments completely filled in.
ISSN:0167-9295
1573-0794
DOI:10.1007/s11038-005-9019-9