解説　(伊賀)
    2月25日に発生したSEBn/EZs disturbanceをまとめています。
    この活動の主体はＩ＝１００度にあり、Ｉ系の経度では変化していませんが、
    ＩＩ系ではずいぶんと早く前進します。
    まだまだdisturbanceは続いています。
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解説　(堀川)
    SEBnからEZsに向けて(黄色く濁った)白雲が流れ込む場所を活動の本質と見ると、
    I=100〜105°にあり、I系に対して少しづつ後退しています。

    この位置は昨シーズン見られた同様の模様(SEBnの切れ目、またはSEBnの浅いbay)
    を外挿した場所に近く、恐らく同じ模様と考えています。

    後方のSEBnがかき乱されたように不規則な濃淡が続いているのが印象的です。
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Hi everyone,
You may find the attached compilation useful: it shows all the good images
of the SED in the last few days. The main focus has drifted up to L1 ~ 117
and there is increasing small-scale disturbance p. it.

Multispectral images so far show:
Methane: Nothing distinctive. (This was also true of the 1999 SED for its
  first 6 months; then it became very impressive in methane wavebands.)
I-band (near-IR continuum):  It has most contrast in this waveband.
UV:  EZ(S) is UV-dull p.the SED, and UV-bright f. it.
Clear and steady skies!
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GRS rotation (2004/03/24)
Here is a compilation of images of the GRS, 2-3 rotations apart, on March 18-20.

You can see a dark arc 'orbiting' around the GRS, from the f. side
to the S side to the p. side.  Also much movement in the post-GRS rifts in
the SEB; and the STBn and SSTBn jetstreams ( as pointed out by
Hans-Joerg).  (This does not include Don Parker's image just received,
coincident with the first one shown, which has even higher resolution.)

I wonder if our friends in Far Eastern longitudes obtained any images
which might extend the series?

Best wishes,

[John H. Rogers: British Astronomical Association.]

ALPO-Japan Latest Jupiter Section