日本ではメリディアニ(Meridiani;0W,-5)付近の観測となりました。７月
１日にアメリカで発見された黄雲は見えていません。そのかわり永長氏の
画像はニリアカス(Niliacus Lacus;30W,+30)のすぐ西に小規模な黄雲が発
生しているようすが記録されています。柚木氏の画像でもかろうじて判読
できます。特に新川氏の赤外画像ではそのことが良く表現されています。
ヘラス(Hellas;290W,-50)の北部に発生した黄雲の様子は、フランク
(Frank J Melillo)の画像が良く分かります。正確な位置はグラフトン(Ed
Grafton)の画像で判読できます。大きさは前日とそう大きくは変化してい
ません。( reported by 11 observers)

July 2nd, 2003
Japan observed near Meridiani（0W,-5). dust which was discovered on
July 1st can not be seen. Small dust cloud is recorded next to the
west of Niliacus sinus(30W,+30) by the image of Einaga(Japan). It
is recording the state that Yunoki(Japan) is the same. In the IR
image of Niikawa(Japan), it understands the state well. It well
understands the dust cloud which occurred in the northern part of
Hellas by the image of Frank J Melillo. A correct position is the
image of Ed. Grafton and is well known. There is not a big change
in the size compared with previous day.
FROM Makoto ADACHI
-------------------------------------------------------------------------------------

HIDEO EINAGA ≪兵庫県　加西　永長英夫≫

撮像したものの、このところ所用が
多く処理が遅れてしまいました。
それにしても、晴れませんね。

少し、強調処理してみました。

[Kenkichi Yunoki  (Sakai City  Japan)]
≪大阪府  堺市  柚木健吉≫

Mars on Jul.02, 2003
Ls = 214.2, De = -21.2, Dia = 17.0"

R image
R64 filter 640nm - 1000nm
18:54:06 (UT), CM =  44.2
Exposure 0.02sec
1682 frames composite

B image
B390 filter (350nm -460nm)
18:26:10 (UT), CM =  37.4
Exposure 0.03sec
1640 frames composite

IR image
R84 filter (840nm - 1000nm)
18:36:12 (UT), CM =  39.8
Exposure 0.2sec
904 frames composite

Telescope:C11(D=280mmm fl=2800mm)
Camera:Hand-made PC camera (CCD:ICX424AL)
Effective Fno. = 26 (XP24mm Eyepiece projection)
Seeing = 8/10, Transparency = 3/6
Observer:Masahito Niikawa Sakai Osaka JAPAN
Processed with CRoPP, Registax and Photoshop


赤外画像では  Chryse, やXantheといった、
いたるところで、明るいポイントがあることに気が付きます。
おそらく、これらは小規模な砂嵐でしょう。
ブルークリアリングは全く観測されていません。
極めてノーマルな青画像です。
欠け際の部分が、やや明るく見えますが．．．
なお極冠のへり、に見える明るい部分は、Mons Argenteusでしょう。
≪大阪府  堺市  新川勝仁≫

The seeing was a little above average at 6/10.
Syrtis Major is clearly seen and Hellas is kind of dull.
But on the north side of Hellas is a little brighter.
The contrast of the features like Mare Tyrrherum
Hesperia and others are not as strong as I expected.
Not sure if this is due to the fine scattered dust
in the Martian atmosphere.
[Frank J Melillo  Holtsville NY U.S.A]
≪フランク : アメリカ  ニューヨーク≫

Hi Mars Observers
Here is an image from July 02th 2003 at 09:43 UT taken from Houston, Texas.
Dust activity noted by D. Parker and J. Beish on July 1st seems to be
prominent in the area of Iapygia on the Northern rim of Hellas. The sky was
mostly cloudy with only a few short gaps in the clouds where a few frames
could be captured.
C14 @ f/27, ST5 CCD

Luminance, IR only, 700-1000nm  .12  seconds,  Edmunds filter
[Ed Grafton, Houston Texas U.S.A.]

[Domenico Licchelli ,Gagliano del Capo, Italy]
≪ドミニコ・リッチェル:イタリア≫

Hi All
Attached are some Mars images from 2 July.
The dust clouds noted yesterday over Iapygia-Ionium have coalesced and expanded.
The cloud has become bright in red light. Hope it stays put!
Best


MARS IMAGES   2 July, 2003
D.C. Parker, Coral Gables, FL. 16-in (41cm) Newtonian
ST9XE CCD Camera  Eyepiece Projection @ f/55.4
Integration Times:
RED (RG610 Red Filter, 610-1100nm: NO IR Rejection)    0.13-0.19s 2-9  images
GREEN (CFW8C, 531nm central; BWHM 86nm)    0.48s    7 images
BLUE (CFW8C, 450nm central, BWHM 116nm)   1.60s  6 images
Images bias,flat and dark corrected.

Seeing variable (3-5, Pickering).  Transparency poor and variable (2-3.5 m) with haze, frequent cloud bands.
Wind gusty, E-SE 5-10 kts. No dew, post rain storm.
Altitude = 51 degrees.

Dust cloud over Iapygia-Ionium has now coalesced and brightened since 1 July. Est. centered at 294 degs W, 25 degs S. Remians very
bright in green light. Now brighter in red light with no IR rejection filter.
Syrtis Minor, Tyrrhenum M. and Crocea still covered with haze. Possibel dust clouds in SE Hellas. Little detail on the floor of Hellas.
Possible dust streaks in extreme eastern Hesperia. Anomalous dark features over this region in blue light.
SPC rifts distinct. Tiny ochre spot noted again on SPC, centered approx. 105 deg W, 82 deg S. NP hood remains thin, AM limb arc thin
and not a bright as on 1 July.
[ Donald C Parker Coral Gables, Florida U.S.A]

Dear friends
The sky continued clear, the seeing was not good in average but still fortunately
still could captured some steady moment.
Attached mars was taken in this morning with the 10" F6 Newtonian as usual but this
time I used F70 for the image.

The light patch over Nikoleras (see the one by MauriceValimberti) has been captured
on this shot too. I put the RGB and RRGB side by side for your reference.
BTW, this time I applied weaker processing which is quite natural looking.
Please feel free to comment.


Dear friends
I am attaching another 20030702 mars which was taken approximately 40 mins earlier
than the shot previously posted. This one was taken at F42.
Regards
[Eric Ng, Tai Po site Hong Kong, China]

[Chen Hsuan-Hsiao :  Kaohsiung Taiwan R.O.C]
≪チェン-スン-シァオ  台湾≫

[ Brian Colville : Cambray Canada]

ALPO-Japan Latest Mars Section