F. K. Chun
United States Air Force Academy
33 Papers
215 Citations
F. K. Chun is an academic researcher from United States Air Force Academy. The author has contributed to research in topics: Telescope & Satellite. The author has an hindex of 11, co-authored 28 publications.
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Papers
Plasmaspheric depletion and refilling associated with the September 25, 1998 magnetic storm observed by ground magnetometers at L = 2
Peter Chi,Christopher T. Russell,S. Musman,W. K. Peterson,Guan Le,V. Angelopoulos,Geoffrey D. Reeves,Mark B. Moldwin,F. K. Chun +8 more
TL;DR: The plasmaspheric mass density at L ≃ 2 was monitored by two IGPP/LANL ground magnetometer stations during the magnetic storm on September 25, 1998 as discussed by the authors, which is a much lower latitude than that expected from the estimated potential drop across the polar cap together with a simple model of the magnetospheric convection pattern.
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Climatology of extreme upper atmospheric heating events
TL;DR: In this paper, the authors used a trio of empirical models to estimate the relative contributions of solar extreme ultraviolet heating, Joule heating and particle heating to the global energy budget of the earth's upper atmosphere.
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Determining Basic Satellite Shape from Photometric Light Curves
TL;DR: In this paper, the results of determining a satellite's shape independent of its size and material composition using simulated data from a photometric modeling tool are presented, and a total of 54 test cases were used in the study: six satellite passes, three regular polyhedron shapes, and three satellite attitudes.
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Magnetosphere on May 11, 1999, the day the solar wind almost disappeared: II. Magnetic pulsations in space and on the ground
Guan Le,Peter Chi,W. Goedecke,Christopher T. Russell,Adam Szabo,S. M. Petrinec,Vassilis Angelopoulos,Geoffrey D. Reeves,F. K. Chun +8 more
TL;DR: In this paper, simultaneous observations by wind and IMP-8 in the upstream region on May 11, 1999, when the solar wind density was well below its usual values and the IMF was generally weakly northward, indicate there were upstream waves present in the foreshock, but wave power was an order of magnitude weaker than usual due to an extremely weak bow shock and tenuous solar wind plasma.
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Field‐aligned currents in the inner magnetosphere: Control by geomagnetic activity
TL;DR: In this article, the occurrence rate of field-aligned currents measured in the Earth's inner magnetosphere by ISEE 1 and 2 is examined for three levels of geomagnetic activity, |AL| ≤ 35 nT, 35 n T 135 nT.
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