Mars Images - 2001

July

01


Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm

Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)

Filter: R64 (640nm - 1000nm)
Exposure :1/15, 1/8 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Seeing = 5/10 -> 1/10
Transparency = 2/6 -> 1/6

Image Processing:
Enhanced with unsharp masking method.

Caption:
Mare Cimmerium and Mare Tyrrhenum, the prominent dark pattern of
the Southern hemisphere of Mars, has been coverd with the global
dust storm.
Near the center of the image [R1] (Aethiopis) BrightsSpot noted dark
However Azania, Hyblaeus, Nodus Alcyonus, and Syrtis Major are noted
The dust storm seems not to expand to the northern hemisphere yet.
The image [R2] is blurred ouing to bad seeing.




Date (in UT):  01 July 2001           Time (UT) 04:30
CM : 87°    dia. = 20.5" 
Telescope: Schmidt-Cassegrain  206 mm  (  f / 30)
Seeing: (0-10 scale) 6-7  Trans.: (0 - 6m) 5  Wind: light, 
Filters: None
Observer station:               Observer:
Dallas, Texas / USA             Hall, George (hall@hex.net)
96° 42' (E)  /  32° 48' (N)     http://vip.hyperusa.com/~hall/george








Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 0.11 sec
    Green : Average of Red and Blue
    Blue  : 0.4 sec
    

Seeing : Fair (3-6/10) 
Altitude = about 60 degrees. No dew.

Dust storm appears to have obscured most part of the visible disc 
except for parts of Stymphalius Lacus, Alcyonius and Utopia.

 

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
    Celestron 11" SCT and eyepiece projection to f/32 with Televue 11mm plossl.
    Integration Times:
    Red   : 0.2 sec
    Green : Average of Red and Blue
    Blue  : 0.8 sec
    Lum   : 0.11 sec

Seeing : Fair (3-6/10) 
Altitude = about 60 degrees. No dew.

Dust storm appears to have obscured most part of the eastern 
portion of the visible disc except features west of Syrtis Major, 
part of Stymphalius Lacus, Alcyonius and Utopia.

 

 

02


Maurice Valimberti      Melbourne, AUSTRALIA   mauricev@ozemail.com.au
'Cookbook' 245 camera. 6" f/11 Refractor + 5x TeleVue Powermate (f/60)
Seeing:  good to very good  
B filter  435nm peak   schott GG385 (1mm), BG25 (1mm), BG39 (3mm)
V filter  520nm peak   schott GG495 (2mm), BG39 (2mm), WG295 (1mm)
R filter  600nm peak   schott OG570 (3mm), KG3 (2mm)
Integration times:
R frame: multiple 0.10s 
V frame: multiple 0.20s           
B frame: multiple 0.50s   





 

 

Mars  02 July 2001. Duststorm in progress.

Telescope: Home made 25cm Dall-Kirkham + 3x Barlow.
Camera: TC211 chip based camera with electro-mechanical shutter.
Filters: No filters
Seeing: About 8 on a scale of 10.
Location: Melbourne, Australia.
Oserver: Stefan Buda and Mark Justice.

 

Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm

Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)

Near UV Images
indicate [U]
Filter: IDAS-U (350nm - 390nm)
Exposure :1 sec Dark corrected
F No.:10 (No Projection)

Blue Images 1
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1/4 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Blue Images 2
indicate [BG]
Filter: SP-B (380nm - 520nm)
Exposure :1/60 sec
F No.:10 (No Projection)

Near IR Images:
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 ~ 1/8 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

IR image
indicate [IR]
Filter: IR84 (840nm - 1000nm)
Exposure :1/4 ~ 1/2 sec

Seeing = 8/10 -> 6/10
Transparency = 3/6 -> 2/6

Image Processing;
Enhanced with unsharp masking method.
[UV] and [BG] images are not enhanced, only composite and 200% enlargement

Caption:
Fairly good condition.
Mare Cimmerium, Mare Tyrrhenum is coverd with the dust cloud
Syrtis Major, and Mare Serpentis noted dark

MARS IMAGES 2nd July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
    Celestron 11" SCT eyepiece projection with televue 11mm plossl to f/32
    Integration Times:
    Red   : 0.2 sec
    Green : Average of Red and Blue
    Blue  : 0.8 sec
    Lum   : 0.11 sec

Seeing : Fair (4-6/10) 
Altitude = about 60 degrees. No dew.

MARS IMAGES 2nd July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 0.11 sec
    Green : Average of Red and Blue
    Blue  : 0.4 sec
    

Seeing : Fair (4-6/10) 
Altitude = about 60 degrees. No dew.

Observer: Raffaello lena of the Geologic Lunar Research group

Observations of a dust storm in Mars over Hellas
- drawing of Mars carried out on july, 2, 2001 
        at 21:20 UT CM of 324=B0 (Ls 189°)

It is visible from Italy a bright area (using a red filter or yellow
filter it is was very visible) corresponding to a possible dust cloud (a
storm in consideration of the extension) over Hellas-Hesperia !

Sirtys Major appeared faint to  the south area.
Observation very interesting July, 2, 2001 21:20 UT seeing II Antoniadi
Refractor polarex unitron 10 cms f/15 using 177 and 250X.


GLR GROUP our web lunar page


OBSERVER: Mario Frassati  
Crescentino (VC)ITALY
SCT 203mm. F/10

The dust storm seems receding in Hellas.
A circular area of residual dust N.E. of Deltoton sinus ?



03












D.C. Parker, Coral Gables, FL.  Lynxx PC camera  16-in (41cm) Meade SCT
            Eyepiece Projection @ f/43.7  Paramount GT 1100S Mount
            Integration Times:
    BLUE (Koheisha, 445nm peak central; BWHM 105nm)    3.72s
    GREEN (Koheisha, 540nm peak central; BWHM 75nm)    1.36s
    RED (RG610 - No IR Rejection)                      0.30s
                     Images flat and dark corrected.
Seeing poor (4-5, Pickering). Transparency 0-5m due to frequent fast cumulus.
Wind ENE 2-15 kts. No dew. Altitude = 35-37 degrees.
NP Hood bright. SPC thin on limb, brilliant. Albedo features somewhat washed
out.. possibly due to poor seeing. Solis LAcus very dark on am limb.
Clouds in Chryse, Candor, and pm limb. Note very bright cloud on SW limb
over Claritas.

Date (in UT):  3 July2001               Time (UT)  20:38h
CM: 305°          d = -26°51'32"        H = 13°
Ls = 189⪚          phi = 20.3"                 De = 6°
Seeing (0-10 scale): 3  Trans. (0 - 6m):  1         Wind: moon
Telescope:      Schmidt-Cassegrain  280 mm  (f / 25)
Magnification:    311x  and 330x
Filters: Schott:  Wratten: W 64 blue/green, W 85 salmon, W 80a blue
         Zeiss:      VG 6 green.

Observer station:                               Observer:
Hattstatt / France                              TEICHERT Gérard
7°18' (E)  /  48°01'  (N)                   gteichert@hotmail.com

Observing notes:
Dust storm (?)
Appears of the eastern areas except west of SYRTIS  MAJOR.


Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm

Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)

Near UV Images
indicate [U]
Filter: IDAS-U (350nm - 390nm)
Exposure :1 sec Dark corrected
F No.:10 (No Projection)

Blue Images 1
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1/2 ~ 1/4 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Blue Images 2
indicate [BG]
Filter: SP-B (380nm - 520nm)
Exposure :1/60 sec
F No.:10 (No Projection)

Near IR Images:
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 ~ 1/15 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

IR image
indicate [IR]
Filter: IR84 (840nm - 1000nm)
Exposure :1/4 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Seeing = 7/10 -> 3/10
Transparency = 2/6

Image Processing;
Enhanced with unsharp masking method.
[UV] and [BG] images are not enhanced, only composite
and 200% enlargement.

Caption:
Mare Tyrrhenum, and Hesperia are noted as a dark spot.

 

04




Maurice Valimberti      Melbourne, AUSTRALIA   mauricev@ozemail.com.au
'Cookbook' 245 camera. 6" f/11 Refractor + 5x TeleVue Powermate (f/60)
Seeing:  poor to average  
B filter  435nm peak   schott GG385 (1mm), BG25 (1mm), BG39 (3mm)
V filter  520nm peak   schott GG495 (2mm), BG39 (2mm), WG295 (1mm)
R filter  600nm peak   schott OG570 (3mm), KG3 (2mm)
Integration times:
R frame: multiple 0.10s 
V frame: multiple 0.20s           
B frame: multiple 0.50s           

New dust cloud in Daedalia?

 

 
Mars
04.07.2001, 21h35 UT
ZM:309.9°
20.22"
Rafraktor 300/5300 Clark
Webcam Philips ToUcam Pro
observation from Vienna/Austria
Video and Processing taken by Robert Schulz

 

Ls = 189.6, De =  +6.5, Dia = 20.3"

Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm

Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)

Near UV Images
indicate [U]
Filter: IDAS-U (350nm - 390nm)
Exposure :1 sec Dark corrected
F No.:10 (No Projection)

Blue Images 1
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1/3 ~ 1/4 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Blue Images 2
indicate [BG]
Filter: SP-B (380nm - 520nm)
Exposure :1/60 sec
F No.:10 (No Projection)

Near IR Images:
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

IR image
indicate [IR]
Filter: IR84 (840nm - 1000nm)
Exposure :1/4 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Seeing = 8/10 -> 5/10
Transparency = 2/6

Image Processing;
Enhanced with unsharp masking method.
[UV] and [BG] images are not enhanced, only composite and 200% enlargement.

Caption:
It seems that the Dust Storm is expanding southward.

Name: Gerald Stelmack
e-mail: gstelmac@cc.umanitoba.ca
Location: Winnipeg, Manitoba, Canada
Mars image: July 4, 2001; 10:30 pm CST (July 5, 03:30 am UTC).
Imaging method: afocal with a 5 inch newtonian and Sony DCR-TRV103 
	Digital 8 Handycam.
Eyepieces: 2x Barlow and 10 mm Plossl (200 x mag. at eyepiece).
Processing: frame capture with Snappy and processing in Adobe Photoshop.
Final image: composite of 64 video frames.
Seeing: good (8 out of 10); skies calm and no cloud cover.

05



MARS IMAGES 5 July, 2001

D.C. Parker, Coral Gables, FL.  Lynxx PC camera  16-in (41cm) Meade SCT
            Eyepiece Projection @ f/35.6  Paramount GT 1100S Mount
            Integration Times:
    BLUE (Koheisha, 445nm peak central; BWHM 105nm)    3.00s
    GREEN (Koheisha, 540nm peak central; BWHM 75nm)    1.02s
    RED (RG610 - No IR Rejection)                      0.22-0.32s
                     Images flat and dark corrected.
Seeing poor (4-5, Pickering). Transparency 1-4m due to high haze - post
tropical wave. No wind. No dew. Altitude = 37 degrees.
NP Hood bright. SPC thin on limb, brilliant. Albedo features washed
out.. possibly due to poor seeing. Clouds in Chryse and pm limb.
NOTE: Features in Ophir, Tithonius, Ganges very weak. Aurorae S. appears
truncated. Nectar and Bosporus dark. Solis Lacus dark on am limb.
Possible dust in Ophir and NE Thaumasia and S. Chryse.

MARS IMAGE : July 05 2001  04:58  UT 
Ed Grafton, Houston Texas  ST6 CCD 14 inch f/11 Celestron SCT
            Eyepiece Projection @ f/60
            Integration Times:
                 5 BLUE  + IR rejection, .5 seconds, Edmunds filters
                 3 GREEN + IR rejection, .5 seconds, Edmunds filters
                 3 RED   + IR rejection, .5 seconds, Edmunds filters
                 11 Magenta, No IR       .1 seconds, Edmunds filters (luminance)
Seeing fair to good 5/10, 
	transparency fair,haze 5/10, wind calm MPH,light dew.
Dust storm noted in Thaumasia. Bosporus and Nectaris P. still 
prominent in this 7/5/01 image were obscurred by 7/08/01 as noted 
on 08 July 2001.

Dust storm is encroaching on Mare Erythraeum.

Observer:  Raffaello Lena of the GLR GROUP 

Here from Italy is visible very well the dust storm over 
Hellas and surrounding areas.

Now i am enclosing 1 other observation , the dust here is!
using W23 filter it is more brigth
july, 5, 2001
at20:20 UT seeing II Antoniadi
refractor polarex unitron 10 cms f/15 250x

 

 
Date (in UT):  05 July 2001           Time (UT) 03:09
CM : 33°    dia. = 20.2" 
Telescope: Schmidt-Cassegrain  206 mm  (  f / 30)
Seeing: (0-10 scale) 5-6  Trans.: (0 - 6m) 5  Wind: light, 
Filters: None
Observer station:               Observer:
Dallas, Texas / USA             Hall, George (hall@hex.net)
96° 44' (W)  /  32° 49' (N)     http://vip.hyperusa.com/~hall/george

Date: 05 July 2001              Time: 21:37 UT - 22:30 UT
Telescope: SC 200 mm  ( f/10 )  Magnification: 290x
Seeing (Ant):  III
Observer : Stefano Basso        Locality: Cernusco Lombardone (LC) Italy
note: the dust storm covered Hellas regio

06





MARS IMAGES 6th July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 0.11 sec
    Green : Average of Red and Blue
    Blue  : 0.4 sec
    

Seeing : poor (2-4/10) 
Altitude = about 60 degrees. No dew. High clouds present 
throughout duration of images and strong wind blowing

Dust storm appears to be still going on and have obscured 
part of Mare Sirenum and areas to the north of it.




07


D.C. Parker, Coral Gables, FL.  Lynxx PC camera  16-in (41cm) Meade SCT
            Eyepiece Projection @ f/35.6  Paramount GT 1100S Mount
            Integration Times:
    BLUE (Koheisha, 445nm peak central; BWHM 105nm)    2.60s
    GREEN (Koheisha, 540nm peak central; BWHM 75nm)    0.90s
    RED (RG610 - No IR Rejection)                      0.21s
                     Images flat and dark corrected.
Seeing good (6-8, Pickering). Transparency 4.5-5.5 between occasional
clouds. Wind ENE-ESE 0-7 kts. No dew. Altitude = 36-35 degrees.
Dust clouds in Thaumasia, Ophir, and over Aurorae Sinus. Solis lacus
very faint. Nectar faintly vivible through dust clouds.
Bright streak in Edom; Moab bright. NPH large, conspicuous with albedo
features showing through it. SPC barely discernable. Note yellow streaks
in Deucalionis.





Robert Bunge, bbunge@ladyandtramp.com

2001 June 30 03:30 UT
Bowie, Maryland
20-inch f/6.4 reflector270x

Seeing 4 out of 10. Warm, humid, very light wind.  Eyepiece kept fogging.  Mars 
low, still twilight.  All marking faint, with very little detail.  Sytris Major 
on limb, almost appeared as shadow of proceding limb clouds.  Hellas region hazy
, slightly brighter.

Robert Bunge, bbunge@ladyandtramp.com
2001 June 30
03:30 UT
Bowie, Maryland
20-inch f/6.4 reflector270x

Seeing 7 out of 10. Cooler, wind guests, passing high clouds.  Seeing better tha
n 2 hours ago and the Martian atmosphere appeared clearer.  Sinus Meridiaini, th
ough still appeared murky with less detail than normal.  Eryhraeum had a good am
ount of detail, incluindg dark areas to the north.  Dark ring/collar arond the n
orth polar cap along with a possible norther polar cap hood.  Also bright area f
ollowing NPC.  Preceding limb clouds.



08



MARS IMAGES 8th July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 0.11 sec
    Green : Average of Red and Blue
    Blue  : 0.4 sec
    

Seeing : poor (2-3/10) 
Altitude = about 60 degrees. No dew. 

The area south of Mare Sirenum appears to be obscured by dust. 
Area from Mare Sirenum to part eastern part of Propotis Complex 
appears to be obscured by dust as well. The area southeast of 
Mare Sirenum appears to be bright.  Could that be due to another 
dust storm in progress.

MARS IMAGE : July 08 2001  03:37  UT

Ed Grafton, Houston Texas  ST6 CCD 14 inch f/11 Celestron SCT

Eyepiece Projection @ f/60

Integration Times:
     6 BLUE  + IR rejection, .5 seconds, Edmunds filters
     3 GREEN + IR rejection, .5 seconds, Edmunds filters
     3 RED   + IR rejection, .5 seconds, Edmunds filters
     14 Magenta, No IR       .1 seconds, Edmunds filters (luminance)

Seeing very good 8/10, 
	transparency excellent 9/10, wind South at 3 MPH, light dew.
SPC brilliant. Albedo features weak or obliterated by Dust. 
Features from Solis Lacus to Ganges to Oxla Pulas are obliterated. 



ALPO Mars Observation - Photographic
DATE (UT): 7/08/01
TIME (UT): 3:29 UT
CM: 3.63
DIA.("): 19.93          
K(phase): 0.97
TELESCOPE: 250mm L - f/117
           
FILTERS: none   
SEEING (0-10): 8
TRANSPARENCY (0-6): 5
FILM: Kodak Elite Chrome 200
IMAGE PROCESSING: Composite of 2 images to give the most 
accurate view of how Mars appeared in the eyepiece.

OBSERVER: Don R. Bates, jr.
OBSERVING STATION: Houston, TX. USA
E-mail: dbates3@houston.rr.com

OBSERVING NOTES: Mare Erythraeum and Sinus Sabaeus are 
very low contrast depite excellent seeing. Seems to be 
caused by albedo changes on the planet itself. Overall color
is very much more pale than just 3 weeks ago.





09

MARS IMAGES 9 July, 2001

D.C. Parker, Coral Gables, FL.  Lynxx PC camera  16-in (41cm) Meade SCT
            Eyepiece Projection @ f/35.6  Paramount GT 1100S Mount
            Integration Times:
    BLUE (Koheisha, 445nm peak central; BWHM 105nm)    2.60s
    GREEN (Koheisha, 540nm peak central; BWHM 75nm)    0.90s
    RED (RG610 - No IR Rejection)                      0.21s
                     Images flat and dark corrected.
Seeing very poor (2-3, Pickering). Transparency variable: 4.5-5.0 between
frequent clouds. No wind. No dew. Altitude = 37 degrees.
NOTE: Meridiani Sinus now largely obscured by dust. Sabaeus S. thin.
Arabia-Moab very bright. Syrtis Major seen through PM limb haze, well seen
visually earlier at 0200 UT. Limb haze does not appear to be rotating.
Deucalionis very yellowish. A cloud appears to partially cover Serpentis M.
Oxia P. very weak compared to previous nights. Is this a separate storm
originating in Deucalionis-Edom?



 

MARS IMAGES 9th July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 0.11 sec
    Green : Average of Red and Blue
    Blue  : 0.4 sec
    

Seeing : fair (4-5/10) 
Altitude = about 60 degrees. No dew. Low clouds frequently interrupted exposures.

Part of Mare Sirenum and part of Mare Cimmerium appears to be obscured by dust.
Area from Mare Sirenum to part eastern part of Propotis Complex appears to be 
obscured by dust as well.





Robert Bunge, bbunge@ladyandtramp.com
Bowie, Maryland
4.25-inch f/10 reflector225x

Seeing 6 out of 10. Warm, not too humid.  Bright area above Sytris Major, but not the normal "white" color.  Many features 
appear fuzzy, without the normal detail.  Dark ring around the North Polar Cap. Preceding limb clouds.


Maurice Valimberti      Melbourne, AUSTRALIA   mauricev@ozemail.com.au
'Cookbook' 245 camera. 6" f/11 Refractor + 5x TeleVue Powermate (f/60)
Seeing:  average  
Transparency: very poor
B filter  435nm peak   schott GG385 (1mm), BG25 (1mm), BG39 (3mm)
V filter  520nm peak   schott GG495 (2mm), BG39 (2mm), WG295 (1mm)
R filter  600nm peak   schott OG570 (3mm), KG3 (2mm)
Integration times:
R frame: multiple 0.10s 
V frame: multiple 0.20s           
B frame: multiple 0.50s





Observer: Raffaello Lena of the GLR GROUP

Mars,  on 9 july 2001 at 20:40 UT from Italy (CM 252°).
Refractor 10 cms f/10 polarex unitron at 178, 250 and 300x. 
Seeing II Antoniadi scale.


dust has propagated  to the east, invading the southern soil , Mare
Tyrrhenum  and Cimmerium .  To the following  part  the Syrtis Major is
faint  and probably bound to the  N. hemisphere region
(Casius-Boreosirtys).

GLR group
http://digilander.iol.it

ALPO Mars Observation - Photographic
DATE (UT): 7/09/01
TIME (UT): 2:53
CM: 339
DIA.("):  19.84 
K(phase): 0.96
TELESCOPE: 250mm L - f/135
           
FILTERS: none   
SEEING (0-10): 8
TRANSPARENCY (0-6): 5
FILM: Kodak Elite Chrome 200
IMAGE PROCESSING: Composite of 2 images to give the most 
accurate view of how Mars appeared in the eyepiece.

OBSERVER: Don R. Bates, jr.
OBSERVING STATION: Houston, TX. USA
E-mail: dbates3@houston.rr.com

OBSERVING NOTES:  Dust storm has spread over Sinus Sabaeus and 
Mare Serpintus. Seeing was very good (8/10) yet the dark marking 
of Mars were very low in contrast compared to observations made 
on 6/3/01. The entire disc now seems to be more golden in color
rather than the normal orange.

Yan Chi Keung, Hong Kong. CCTVcamera(CCD) , 
   recorded with Sony Digital 8 Handycam 
   TEC Mak-Cass 25cm f/20, 2x Barlow
UT 09 July 2001 1334-1350
    Red   : 91 images(stacked)
    Green : 51 images(stacked)
    Blue  : 47 images(stacked)
Seeing : average (3/10)




10

MARS IMAGES 10th July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 0.11 sec
    Green : Average of Red and Blue
    Blue  : 0.4 sec
    

Seeing : fair (4-5/10) 
Altitude = about 60 degrees. No dew. 

Part of Mare Sirenum and part of Mare Cimmerium appears to be 
obscured by dust.  Most parts of visible disc appears to be 
obscured by dust.

James A. DeYoung
Washington, DC
00:57 UTC 2001 July 10
120mm f/8.3 achromatic refractor
2x barlow for efl. of 2000mm
0.58 arc sec. / pixel
Vesta Pro web cam, lens removed
unfiltered final image result of coaddition

CM 314
Alt. 19 Az. 153
Notice Syrtis Major is missing from view and that whole region 
appears fairly bright and yellowish.









Yan Chi Keung, Hong Kong. CCTVcamera(CCD) , 
   recorded with Sony Digital 8 Handycam 
   TEC Mak-Cass 25cm f/20, 2x Barlow
UT 10 July 2001 1406-1410 
    Red   : 66 images(stacked)
    Green : 48 images(stacked)
    Blue  : 38 images(stacked)
Seeing : average (2/10)


Ls = 193.1,De =  +7.1, Dia = 19.7"

Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm

Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)

Blue Images 
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1/4 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Near IR Images:
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

IR image
indicate [IR]
Filter: IR84 (840nm - 1000nm)
Exposure :1/4 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Seeing = 4/10 -> 2/10
Transparency = 3.5/6

Image Processing;
Enhanced with unsharp masking method.

Caption:
Aunius Sinus,is very bright on red images, on the other hand
 Daedaria, Mare Sirenum noted dark.

Electris  bright blue cloud.

11

MARS IMAGE : July 11 2001  03:31  UT

Ed Grafton, Houston Texas  ST6 CCD 14 inch f/11 Celestron SCT

Eyepiece Projection @ f/60

Integration Times:
5 BLUE  + IR rejection, .5 seconds, Edmunds filters
5 GREEN + IR rejection, .5 seconds, Edmunds filters
5 RED   + IR rejection, .5 seconds, Edmunds filters
20 Magenta, No IR       .1 seconds, Edmunds filters (luminance)

Seeing very good 7/10, transparency excellent 9/10, wind South at 3 MPH,
light dew.  All Albedo features very weak except for collar of SPC. 



CM : 327°    dia. = 19.66" 
Telescope: Schmidt-Cassegrain  206 mm  (  f / 30)
Seeing: (0-10 scale) 6-7  Trans.: (0 - 6m) 4  Wind: light, 
Filters: None Left Image, #21 Right Image
Observer station:               Observer:
Dallas, Texas / USA             Hall, George (hall@hex.net)
96° 44' (W)  /  32° 49' (N)     http://vip.hyperusa.com/~hall/george



12



MARS IMAGES 12th July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 9 x 0.11 sec
    Green : Average of Red and Blue
    Blue  : 10 x 0.4 secRS IMAGES 13th July 2001

Seeing : Good (6-7/10) Skies hazy, frequent low clouds interrupted exposures. 
Altitude = about 60 degrees. No dew. 

Most visible disc appears to be obscured by dust. Nix Olympica visible.


Ls = 194.7, De =  +7.2, Dia = 19.5"

Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm

Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)

Blue Images 
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1/4 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Near IR Images:
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Seeing = 2/10
Transparency = 3/6

Image Processing;
Enhanced with unsharp masking method.

Caption:
Bad condition.

Aunius Sinus,is very bright on red images, on the other hand Daedaria, Mare Sirenum noted dark.

Electris bright blue cloud.





MARS IMAGES 13 July, 2000

D.C. Parker, Coral Gables, FL.  Lynxx PC camera  16-in (41cm) F/6 NEWTONIAN
            Eyepiece Projection @ f/38.7
            Integration Times:
    BLUE (Koheisha, 445nm peak central; BWHM 105nm)   1.92s 
    GREEN (Koheisha, 540nm peak central; BWHM 75nm)   0.64s 
    RED (RG610 - No IR Rejection)                     0.16s 
                     Images flat and dark corrected.
Seeing good (6-7, Pickering).Transparency good (5m). West wind, 0-3 kts. 
Altitude = 33-37 degrees. No dew.
Dust continues, but mainly limited to northern hemisphere: planet-encircling.
Large dust cloud in Hellas with fingers extending northward over Hadriacum,
Iapygia, Ionium. Cloud across Crocea. Note western border of Syrtis Major
bright with possible anomalous albedo features in eastern Aeria. Antigones F.
conspicuous, with Astaboras glimpsed. Protonilus, Coloe P. dark, while 
Sabaeus Sinus, Serpentis M., Deltoton S., Yaonis, Hellespontis, and Syrtis
Minor largely obscured. Pityusa In. very dark near S. limb.
NPH remains conspicuous, while SPC barely visible. Bright cloud on SW limb.

13



MARS IMAGES 13th July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 0.11 sec
    Green : Average of Red and Blue
    Blue  : 0.4 sec
    

Seeing : Good (5-6/10) Skies hazy due to forest fires.
Altitude = about 60 degrees. No dew. 


D.C. Parker, Coral Gables, FL.  Lynxx PC camera  16-in (41cm) F/6 NEWTONIAN
            Eyepiece Projection @ f/38.7
            Integration Times:
    BLUE (Koheisha, 445nm peak central; BWHM 105nm)   1.92s
    GREEN (Koheisha, 540nm peak central; BWHM 75nm)   0.64s
    RED (RG610 - No IR Rejection)                     0.16s
                     Images flat and dark corrected.
Seeing good (6-7, Pickering).Transparency good (5m). West wind, 0-3 kts.
Altitude = 33-37 degrees. No dew.
Dust continues, but mainly limited to northern hemisphere: planet-encircling.
Large dust cloud in Hellas with fingers extending northward over Hadriacum,
Iapygia, Ionium. Cloud across Crocea. Note western border of Syrtis Major
bright with possible anomalous albedo features in eastern Aeria. Antigones F.
conspicuous, with Astaboras glimpsed. Protonilus, Coloe P. dark, while
Sabaeus Sinus, Serpentis M., Deltoton S., Yaonis, Hellespontis, and Syrtis
Minor largely obscured. Pityusa In. very dark near S. limb.
NPH remains conspicuous, while SPC barely visible. Bright cloud on SW limb.


CM 281.4 - 285.6, Ls 194.5, S=6/7, 
T = 4. Using 12.5-inch f/7 Newt. at 225x - 540x. 

Observed north part of Syrtis Major, Hellas bright, Syrtis minor 
just barely defined. Casius and Umbra dark making NPR appear brighter.
Almost detect dark collar at NPC edge. Dust activity on Mars extensive, 
planet-encircling. No distinguishable dust clouds or bright red spots
visible. Atmosphere of Mars very dusty but not totally blocking surface. 
SPR not visible. 

Jeff Beish
ALPO Mars Section
Retried Astronomer at:
27°N 21' 9.3"   81°W 19' 34.9"






Maurice Valimberti      Melbourne, AUSTRALIA   mauricev@ozemail.com.au
'Cookbook' 245 camera. 6" f/11 Refractor + 5x TeleVue Powermate (f/60)
Seeing:  good  
Transparency: good
B filter  435nm peak   schott GG385 (1mm), BG25 (1mm), BG39 (3mm)
V filter  520nm peak   schott GG495 (2mm), BG39 (2mm), WG295 (1mm)
R filter  600nm peak   schott OG570 (3mm), KG3 (2mm)
Integration times:
R frame: multiple 0.10s 
V frame: multiple 0.20s           
B frame: multiple 0.50s





14



Mars
14.07.2001, 20h06 UT
ZM:198.3°
19.22"
Meade 2080 SCT at f38
2xBarlow + Extender
Webcam Philips ToUcam Pro
In my opinion the planet is globally reduced
in contrast due the current dust storm
observation from Vienna/Austria
Video and Processing taken by Robert Schulz



MARS IMAGES 14th July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 0.11 sec
    Green : Average of Red and Blue
    Blue  : 0.4 sec
    

Seeing : Very Good (6-7/10) 
Altitude = about 60 degrees. No dew. 




Ls = 195.4, De =  +7.3, Dia = 19.3"

Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm

Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)

Blue Images
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1/4 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Near IR Images:
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

IR image
indicate [IR]
Filter: IR84 (840nm - 1000nm)
Exposure :1/4 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Seeing = 7~6/10
Transparency = 3/6

Image Processing:
Enhanced with unsharp masking method.

Caption:
Fairly good condition.
Phaethonis bright blue cloud.



15

MARS IMAGES 15th July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
weileong@singnet.com.sg

    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 0.11 sec
    Green : Average of Red and Blue
    Blue  : 0.4 sec
    

Seeing : Very Good (6-7/10) 
Altitude = about 60 degrees. No dew. 

Nix Olympica, Tharsis, Juventae Fons, Tithonius Lacus Visible. 
Clouds at north polar region appears white in eyepiece.





16

Date (in UT):  16 July 2001           Time (UT) 02:20
CM : 280°    dia. = 19.09" 
Telescope: Schmidt-Cassegrain  206 mm  (  f / 30)
Seeing: (0-10 scale) 7-8  Trans.: (0 - 6m) 5  Wind: light, 
Filters: #21 Left Image, None Right Image
Observer station:               Observer:
Dallas, Texas / USA             Hall, George (hall@hex.net)
96° 44' (W)  /  32° 49' (N)     http://vip.hyperusa.com/~hall/george

Date & Time:  16 July 2001, 02:36 UT
Location: Alexandria, VA (38° 55' N, 77° 01' W, 60m)
Equipment: Celestar-8 203mm f/10 Schmidt Cassegrain telescope
             2.5X TeleVue Barlow Lens with 5-cm extension tube
             Philips Vesta 675K Webcam, RGB color
Observer: Geoff Chester

119 raw frame stack processed with AstroStack.

Seeing 5/10, transparency 8/10, calm wind.
CM = 283.7°

Syrtis Major, Hesperia barely visible visually at 225X.

17



MARS IMAGES 17th July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
weileong@singnet.com.sg

    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 0.11 sec
    Green : Average of Red and Blue
    Blue  : 0.4 sec
    

Seeing : Very Good to excellent (7-8/10) 
Altitude = about 60 degrees. No dew.

18

MARS IMAGES 18 July, 2000

D.C. Parker, Coral Gables, FL.  Lynxx PC camera  16-in (41cm) F/6 NEWTONIAN
            Eyepiece Projection @ f/36.0
            Integration Times:
    BLUE (Koheisha, 445nm peak central; BWHM 105nm)   2.20s
    GREEN (Koheisha, 540nm peak central; BWHM 75nm)   0.66s
    RED (RG610 - No IR Rejection)                     0.15s
                     Images flat and dark corrected.
Seeing fair (5, Pickering) -- NOTE limb deformnations on images.
Transparency fair (4.0m) with high haze. SE wind, 0-4 kts.
Altitude = 36-34 degrees. No dew.
NPH remains conspicuous, while SPC barely visible. Bright cloud on SW limb.
PM limb arc.
Dust still obscuring much of Tyrrhenum, Hadriacum, and Cimmerium Maria.         
Eastern Hellas remains obscured but Yaonis, Hellespontis, and Serpentis now
showing through. The dust appears to be covering much of the planet except
for the high northern latitudes, where the albedo features exhibit normal
intensity. NOTE faint large dark patch between Hyblaeus and Alcyonius --
perhaps this heralds reappearence of the Loacoontis Complex ???





MARS IMAGES 18th July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
weileong@singnet.com.sg

    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 0.11 sec
    Green : Average of Red and Blue
    Blue  : 0.4 sec
    

Seeing : Good (5-6/10) 
Altitude = about 60 degrees. No dew.


Ls = 197.8, De =  +7.4, Dia = 18.8"
CM =  67.0
13 frames composite

Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm

Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)

Near IR Images:
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Seeing = 5/10
Transparency = 2/6

Image Processing:
Enhanced with unsharp masking method.

Caption:
The Observation was interrupted by cloud, and after all gave up.
Only R images could be taken.

The Proceeding portion of Tempe noted dark, and bright spot in the NP area.

19




Ls = 198.4, De =  +7.4, Dia = 18.6"

Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm

Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)

Blue Images 
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1/4 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Near IR Images:
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec[R1], 1/8sec[R2]
Effective F No.: 36 (XP24mm Eyepiece Projection)

IR image
indicate [IR]
Filter: IR84 (840nm - 1000nm)
Exposure :1/4 sec[IR1], 1/3sec[IR2]
Effective F No.: 36 (XP24mm Eyepiece Projection)

Seeing = 6/10-> 2/10
Transparency = 3/6

Image Processing:
Enhanced with unsharp masking method.

Caption:
A bright spot in NPC area noted even in R image [R1]
Tempe is dark in IR images.

20




Ls = 198.9, De =  +7.4, Dia = 18.5"                                                            
Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm
Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)
 
Blue Images
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1/3~1/4 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
 
Near IR Images:
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
 
IR image
indicate [IR]
Filter: IR84 (840nm - 1000nm)
Exposure :1/4 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
 
Seeing = 6/10
Transparency = 3/6
 
Image Processing;
Enhanced with unsharp masking method.
 
Caption:
Mare Acidarium noted dark.

21





MARS IMAGES 21st July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
weileong@singnet.com.sg

    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 0.11 sec
    Green : Average of Red and Blue
    Blue  : 0.4 sec
    

Seeing : poor (4-5/10), high haze present, transparency 5/10 
Altitude = about 60 degrees. No dew.

Date (in UT):  21 July 2001           Time (UT) 02:15
CM : 280°    dia. = 18.46" 
Telescope: Schmidt-Cassegrain  206 mm  (f / 30 & f / 50)
Seeing: (0-10 scale) 8-9  Trans.: (0 - 6m) 5  Wind: light, 
Filters: #21 Right Image, None Left Image
Observer station:               Observer:
Dallas, Texas / USA             Hall, George (hall@hex.net)
96° 44' (W)  /  32° 49' (N)     http://vip.hyperusa.com/~hall/george




Ls = 199.6, De =  +7.4, Dia = 18.4"
Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm
 
Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)
 
Blue Images
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1/3~1/2 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
 
Near IR Images:
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
 
IR image
indicate [IR]
Filter: IR84 (840nm - 1000nm)
Exposure :1/3 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
 
Seeing = 7/10
Transparency = 2/6
 
Image Processing;
Enhanced with unsharp masking method.

22



Date  (in UT)   22 July 2001   CM:136°    Time  (UT)  20:49h
- A rather ring-like dark band surrounded the NPC (H). (CANDIA)
- Isolated bright spot (1) near OPHIR
- SOLIS LACUS is dark
- The eastern limb (2) and the extreme SPR is slightly bright


Ls = 200.1, De =  +7.4, Dia = 18.3"
Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm
 
Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)
 
Blue Images
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1/3~1/2 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
 
Near IR Images:
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
 
IR image
indicate [IR]
Filter: IR84 (840nm - 1000nm)
Exposure :1/3~1/2 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
 
Seeing = 7/10
Transparency = 3/6
 
Image Processing;
Enhanced with unsharp masking method.

23

MARS IMAGES 23rd July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
weileong@singnet.com.sg

    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 0.11 sec
    Green : Average of Red and Blue
    Blue  : 0.4 sec (first 2 frame)
            0.3 sec (last  2 frame)
    

Seeing : good (5-6/10), transparency very good 
Altitude = about 60 degrees. No dew.




Ls = 200.7, De =  +7.3, Dia = 18.1"
Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm
 
Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)
 
Blue Image
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1/4 ~ 1/2 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
 
Near IR Image
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
 
IR image
indicate [IR]
Filter: IR84 (840nm - 1000nm)
Exposure :1/4 ~ 1/3 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
 
Seeing = 8/10
Transparency = 3/6 -> 2/6
 
Image Processing;
Enhanced with unsharp masking method.
 
Caption:
Bright Cloud along the proceeding limb noted in both IR and B images.


INSTRUMENTAL
180mm Astro-Physics EDT apochromatic refractor
SBIG ST7e CCD camera
0.35 arcsec/pixel
 
IMAGING
2001-Jul-23, 12:15 UT
16 exposures used from 64, 0.11sec, R filter.
Camera temp -30C
Dark & flat calibrated
 
CONDITIONS
Ambient temp=5C
Seeing 6/10, FWHM=4.1px (R filter)
Transparency 3/5, some haze.
Altitude=72o.
 
MARS
CM=1o, Diam=18.1", Ph=93%, PA Axis=33.2o.
South up.
 
REMARKS
The dust storm is effectively everywhere. Almost nothing visible visually except near 
NP. On the image, the most recognizable features aside from the poles are in the Ismenius 
region. More centrally, the markings do not clearly correspond to "normal" albedo features. 
Either, they are artefacts of enhancing the very low contrast, or they are thinnings of 
the dust clouds over dark regions (Mare Serpentis, Deucalionis Regio, Sinus Sabaeus).
 
Tom Richards, Woodridge Observatory, Melbourne Australia
tom@woodridgeobsy.org

24


Maurice Valimberti      Melbourne, AUSTRALIA   mauricev@ozemail.com.au
'Cookbook' 245 camera. 6" f/11 Refractor + 5x TeleVue Powermate (f/60)
Seeing:  fair  
Transparency: fair to poor - fog & dew
B filter  435nm peak   schott GG385 (1mm), BG25 (1mm), BG39 (3mm)
V filter  520nm peak   schott GG495 (2mm), BG39 (2mm), WG295 (1mm)
R filter  600nm peak   schott OG570 (3mm), KG3 (2mm)
Integration times:
R frame: multiple 0.10s 
V frame: multiple 0.20s           
B frame: multiple 0.40s



MARS IMAGES 24th July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
weileong@singnet.com.sg

    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 0.11 sec
    Green : Average of Red and Blue
    Blue  : 0.4 sec 

Seeing : fast seeing, poor(2-5/10), frequent low clouds 
interrupt exposure.
Altitude = about 60 degrees. No dew.

25

Date (in UT)  25 July 2001     CM:111°    Time (UT)  20:58 h
- The Mars atmosphere is less transparent than usual !!
- The NPC (H) is whitish. (Filter blue)
- TEMPE (1)  is bright
- MARE ERYTHRAEUM is difficult to see (low contrast!)
- SOLIS LACUS could not be seen
- The eastern limb (2) and the extreme SPR is slightly bright





Mars on Jul.25, 2001
Ls = 201.9, De =  +7.3, Dia = 17.9"
Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm
 
Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)
 
Blue Image
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1/4 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
 
Near IR Image
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
 
IR image
indicate [IR]
Filter: IR84 (840nm - 1000nm)
Exposure :1/3 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
 
Seeing = 4/10
Transparency = 2/6
 
Image Processing;
Enhanced with unsharp masking method.



26



27



28

MARS IMAGE : July 28 2001  03:18  UT
Ed Grafton, Houston Texas  ST6 CCD 14 inch f/11 Celestron SCT
Eyepiece Projection @ f/60

Integration Times:
5 BLUE  + IR rejection, .5 seconds, Edmunds filters
3 GREEN + IR rejection, .5 seconds, Edmunds filters
5 RED   + IR rejection, .5 seconds, Edmunds filters
17 Magenta, No IR       .1 seconds, Edmunds filters (luminance)

Seeing fair-good 5/10, transparency good-excellent 8/10, 
wind South at 2 MPH, moderate dew.

Mars on Jul.28, 2001
Ls = 203.7, De =  +7.1, Dia = 17.5"

Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm

Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)

Blue Image
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1/2 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Near IR Image
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

IR image
indicate [IR]
Filter: IR84 (840nm - 1000nm)
Exposure :1/3 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Seeing = 4/10
Transparency = 1/6

Image Processing;
Enhanced with unsharp masking method.

Caption:
Syrtis Major, Mare Serpenti, Sunus Sabaeus, and Pandorae Fretum
these dark area are recognized through the dust cloud.
Aeria is bright.

29

MARS IMAGES 29th July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
weileong@singnet.com.sg

    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 0.11 sec
    Green : Average of Red and Blue
    Blue  : 0.4 sec 
       

Seeing : fast seeing, poor(3-5/10)
Altitude = about 60 degrees. No dew

Mars on Jul.29, 2001
Ls = 204.3, De =  +7.1, Dia = 17.4"

Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm

Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)

Blue Image
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1/4 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Near IR Image
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

IR image
indicate [IR]
Filter: IR84 (840nm - 1000nm)
Exposure :1/4 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Seeing = 5/10
Transparency = 3/6

Image Processing;
Enhanced with unsharp masking method.

Caption:
Mare Tyrrhenum, Syrtis Major, Mare Serpenti, and Sunus 
Sabaeus these dark area are recognized through the dust
cloud especially in IR images.

30

MARS IMAGES 30th July 2001

Tan Wei Leong, Singapore. SBIG ST7E CCD camera 
weileong@singnet.com.sg

    Celestron 11" SCT with Televue 2.5x powermate to f/23
    Integration Times:
    Red   : 0.11 sec
    Green : Average of Red and Blue
    Blue  : 0.3 sec 
       

Seeing : Good (5-7/10)
Altitude = about 60 degrees. No dew.

MARS IMAGES 30 July, 2000
 
D.C. Parker, Coral Gables, FL.  Lynxx PC camera  16-in (41cm) F/6 NEWTONIAN
            Eyepiece Projection @ f/36.0
            Integration Times:
    BLUE (Koheisha, 445nm peak central; BWHM 105nm)   2.00-3.60s
    GREEN (Koheisha, 540nm peak central; BWHM 75nm)   0.60-1.60s
    RED (RG610 - No IR Rejection)                     0.14-0.28s
                     Images flat and dark corrected.
Seeing fair to good (6-7, Pickering) Transparency poor and variable (2-4m)
with cloud bands. SE wind, 0-1 kts. Altitude = 35-32 degrees. No dew.
Dust still obscuring much of Sirenum M. Titanum S. barely visible. However,
Olympus Mons visible through the dust. Propontis very dark.
PM limb bright in red and green. NPH large, dull.
NOTE: Anomalus albedo feature in Daedalia -- very dark near PM limb.



Mars on Jul.30, 2001
Ls = 204.9, De =  +7.0, Dia = 17.2"

Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm

Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)

Blue Images 
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1/3 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Near IR Images:
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

IR image
indicate [IR]
Filter: IR84 (840nm - 1000nm)
Exposure :1/3 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Seeing = 7/10
Transparency = 2/6

Image Processing;
Enhanced with unsharp masking method.

31

MARS IMAGES 31 July, 2000
 
D.C. Parker, Coral Gables, FL.  Lynxx PC camera  16-in (41cm) F/6 NEWTONIAN
            Eyepiece Projection @ f/36.0
            Integration Times:
    BLUE (Koheisha, 445nm peak central; BWHM 105nm)   1.60s
    GREEN (Koheisha, 540nm peak central; BWHM 75nm)   0.52s
    RED (RG610 - No IR Rejection)                     0.12s
                     Images flat and dark corrected.
Seeing fair (5-6, Pickering) Transparency good (5m)
with cloud bands. ENE-ESE wind, 0-6 kts. Altitude = 37 degrees. No dew.
VERY bright dust cloud over eastern Daedalia-Claritas, approx. 10-30 deg S,
124-145 deg W. In addition, anomalous albedo feature (~20-35 deg S, ~ 125-
145 deg W) in western Daedalia. Will this persist like the Dadalia-Claritas
darkening of 1973? This appears to follow the course of Araxes.
Olympus Mons, Arsia, and Ascraeus vivible and very prominent in green light.
Note dark features along western borders of dust cloud -- ?shadows?



MARS IMAGE : July 31 2001  02:17  UT
 
Ed Grafton, Houston Texas  ST6 CCD 14 inch f/11 Celestron SCT
Eyepiece Projection @ f/60
 
Integration Times:
	5 BLUE  + IR rejection, .5 seconds, Edmunds filters
	5 GREEN + IR rejection, .5 seconds, Edmunds filters
	5 RED   + IR rejection, .5 seconds, Edmunds filters
	14 Magenta, No IR       .09 seconds, Edmunds filters (luminance)
 
Seeing good 7/10, transparency excellent 9/10, wind South at 5 MPH, no dew.
Heavy dust activity noted from Solis Lacus to Chryse Xanthe.

Mars on Jul.31, 2001
Ls = 205.5, De =  +6.9, Dia = 17.1"

Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm

Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)

Blue Images 
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1/3 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Near IR Images:
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

IR image
indicate [IR]
Filter: IR84 (840nm - 1000nm)
Exposure :1/3 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)

Seeing = 7/10
Transparency = 2/6

Image Processing;
Enhanced with unsharp masking method.

Caption:
Hellespontus, Pandorae Fretum, Sinus Sabaeus are noted dark
through the dust cloud.