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The
Jacchia-Bowman 2006 (JB2006) model was developed using the
CIRA72 (Jacchia 71) model as the basis for the diffusion
equations. New solar indices have been used for the
solar irradiances in the extreme and far
ultraviolet wavelengths. New exospheric temperature
and semiannual density equations were created to represent the major
thermospheric density
variations. Temperature correction
equations were also developed for diurnal and latitudinal effects, and
finally density correction factors have been included for
model corrections required at high altitudes (1500- 4000
km). This model has been validated through comparisons
of accurate daily density drag data previously computed for
numerous satellites. For 400 km altitude the
standard deviation of 16% for the Jacchia 1971 model has been reduced
to 10% in the JB2006 model during periods of low geomagnetic
storm activity.
Please follow the links to Indices, Code, Publications, Contacts, Figures, and SET for more detailed information.
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[Home]
|
[Intro] | [Indices] | [Code] |
[Contacts]
|
[Figures]
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