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Antonio Cidadao (250mm LX200SCT : FLICM7 1E CCD camera)
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Just processed my Jan 18 data, which shows well the SEB preceding the GRS.
It looks like the IR-CH4 disparity I referred in SEB is due to the fact that
the mid SEB methane-bright band stays straight preceding the GRS while it
curves S preceding the GRS in IR-light, thus making them non-registred p.
the GRS.
In the CH4 ratio images also obtained the methane dark sector of the SEB
preceding the GRS is dark, thus darker in the "5nm" filter than in the
"18nm". Notice a doughnut-shaped dust spot in the ratio image, that
apparently had landed in the 5nm filter but disapeared in later (jan 21)
images. Good flat field is particularly important in ratio-images.
Good observations
≪アントニオ シダダオ ポルトガル≫
[Antonio Cidadao Oeiras - Portugal]
 ALPO-Japan Latest
Jupiter Section
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