西に進んだ黄雲は、レオング氏の画像から南西方向に淡くなりながら拡散
している様子が読み取れる。残念ながらノアキス(Noachis;340W,-40)のあた
りは観測がなく、様子が良く分からない。東へ進んだ黄雲はヘラス
（Hellas;290W,-50)付近でさらに南に移動している様子が分かる。キンメリ
ウム(Mare Cimmerium;215W,-20)
付近に出ていた、小規模な黄雲は拡散が進み、形状ははっきりしなくなった。
そのかわり、その一帯はダストのベールに覆われ、ペリエ（Christophe
Pellier)とエリック（Erich Ng)の画像からは周辺部でリムが非常に黄色く
明るくなっている様子が記録されている。
レオング氏の画像では南極冠に、円形のまるいスポットが写っているが、
これは永久南極冠だと思われる。
(reported by 11 observers)

July 6th, 2003
Dust storm to have advanced towards the west spread while it became
light with the southwestern direction. It understands well by the
image of Tan Wei Leong. Regrettably, there is not observation near
Noachis(350W,-40). Dust storm to have advanced towards the east
moved to the south near Hellas(295W,-50). Dust storm near Mare
Cimmerium (220W,-20) diffused and became not cleared. Instead of it
the whole was covered by veil. Cristophe Pellier and Tan Wei Leong
are recording that limb in Mars became yellow. White spot which is
seen by SPC of Tan Wei Leong seems to be water ice.
FROM Makoto ADACHI
-------------------------------------------------------------------------------------

[Sigemi Numazawa : Niigata-City Niigata-Prefecture Japan]
≪新潟県 新潟市 沼澤茂美≫

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

Hi Mars Observers
The dust activity seems to be most intense on the northeastern segment of
the Hellas basin, somewhat less intense over Mare Hadriacum and Iapygia.
Sky:
The clouds parted somewhat right before dawn allowing for an image of the
dust area. The sky was mostly cloudy with only a few breaks at the low level
and cirrus at higher levels. The transparency was poor 3/10 and the seeing
was fair to good 6/10.
C14 @ f/27, ST5 CCD

RED  + IR rejection, .15  seconds, SBIG filter
GREEN + IR rejection, .3  seconds, SBIG filter
BLUE  + IR rejection,  .5  seconds, SBIG filter
Luminance, IR only, 700-1000nm  .12  seconds,  Edmunds filter
[Ed Grafton, Houston Texas U.S.A.]

Hi all, this morning I had wonderful seeing conditions on Mars, unbelievable
at an altitude of 20-29ｰ !
There is still no dust in the important site of Solis PLanium / Thaumasia.
Again a cloud is seen forming above Arsia Mons.
[Christophe Pellier  Bruz City , France]
≪クリストフ  ペリエ  フランス≫

MARS IMAGES   6 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)    0.15-0.25s 1-2  images
GREEN (CFW8C, 531nm central; BWHM 86nm)    0.42-0.44s    4-9 images
BLUE (CFW8C, 450nm central, BWHM 116nm)   1.30-1.40s  5-7 images
Images bias,flat and dark corrected.

Seeing fair, variable (5-8, Pickering).
Transparency  variable (0-4.5 m) with frequent fast cumulus clouds.
Severe wind gusty, ENE 10-20 kts. No dew. Altitude = 51-48 degrees.

Primary dust cloud has expanded south to cover most of Hellas.
Little eastward expansion, although some dust visible in Ausonia and Eridania.
Small dust clouds in Hesperia. Dust finger crossing Tyrrhenum into Libya.
Reduced contrast in western Tyrrhenum and Syrtis Minor.
NOTE: Compared to 4 July images, low contrast region in Syrtis Major has expanded further north.
Delicate wispy clouds in Elysium.
Trivium-Cerberus remains very weak. Hyblaeus dark, prominent. NP hood bright.
Violet Clearing = 0.
[ Donald C Parker Coral Gables, Florida U.S.A]

Hi
Observer: Fabio Acquarone   Genoa - Italy
Instruments : Celestron C9,25 - focal lenght 2350mm - diameter 235mm  f/10
GM-8 mount  Barlow Televue 3x   Toucam Pro   exposition 1/25 sec.
Observation locality :  Casa del Romano (ITALY)  Long. 44ｰ34'12" N    Lat. 9ｰ10'01 E     H.02:04 UT
Elaboration software: IRIS -  Stacking of 1389 frames taken at 10 f/sec.
Color images are progressive elaboration using different
levels of unsharp mask

This is the second time for me this year on Mars. I am learning the good way to take shots on Mars.
Last night seeing was not so bad
diifficulties were understand the correct magnification vs focusing according to the observed turbolence.

Kind Regards
[Eric Ng, Tai Po site Hong Kong, China]

Dear friends
The cloudy and wet conditions over Singapore for the last two weeks have
abated at last and I've managed to obtained some mars image this morning.
I've to go to work so I rush process the 1951UT image which is attached
along with this message.
Transparency was 6/10 and seeing was 5-6/10.
Stack of about 1000 frames out of 1800.
1/25sec and 60% gain
Dust is observed over Nilokeras, and Mare Acidalium.
Wei Leong

[Tan Wei Leong  Singapore]
≪タンウェイレオング  シンガポール≫

[Dr. P. Clay Sherrod  Arkansas  State U.S.A]
≪クレイ  シェラード  アメリカ  アーカンサス≫

Instruments : Celestron C9,25 - focal lenght 2350mm - diameter 235mm  f/10
GM-8 mount  Barlow Televue 3x Toucam Pro   exposition 1/25 sec.
Observation locality :  Casa del Romano (ITALY)  Long. 44ｰ34'12" N    Lat. 9ｰ10'01 E     H.02:04 UT
Elaboration software: IRIS -  Stacking of 1389 frames taken at 10 f/sec.
Color images are progressive elaboration using different
levels of unsharp mask
This is the second time for me this year on Mars.
I am learning the good way to take shots on Mars.
Last night seeing was not so bad, diifficulties were understand the correct magnification vs
focusing according to the observed turbolence.
[ Fabio Acquarone Genoa ITALY ]

[Ferruccio Zanotti ,  Ferrara-Italy]

[Paolo Baldoni  Genova, North Italy](N44d25'37",E08d56'00")
≪パオロ・バルドニ  ローマ:イタリア北部≫

ALPO-Japan Latest Mars Section