LtE in CMO #280

From Donald C PARKER



. . . . . . . .Date: Sat, 27 Sept 2003 20:47:09 +0000

Subject: Mars Images

 

Hi All,

Here are some Mars images from 23 Sept.

Best,

 

MARS IMAGES 23 September 2003

 

D.C. Parker, Coral Gables, FL. 16-in (41cm) Newtonian

ST9XE CCD Camera Eyepiece Projection @ f/55.4

Integration Times: RRGB Images

RED (RG610 Red Filter, 610-1100nm: NO IR Rejection) 0.15-0.22s 2-3 images

GREEN (CFW8C, 531nm central; BWHM 86nm) 0.65-1.00s 7-9 images

BLUE (CFW8C, 450nm central, BWHM 116nm) 2.50-3.00s 5-7 images

Images bias,flat and dark corrected.

 

Seeing poor but variable (3-4 Pickering). Transparency very poor (0-3 m0, constant cloud bands, haze.

Wind E 0-6 kts. Altitude = 47-48 degrees. No dew.

 

Seeing, Transparency very poor and variable. No Violet Clearing. Weak orographic cloud over Arsia Mons.

Delicate patchy clouds over Tharsis. Large, localized morning clouds over western Amazonis.

 

. . . . . . . .Date: Wed, 01 Oct 2003 21:44:42 +0000

Subject: Mars Images

 

Hi All,

Here are several Mars images from 27 Sept. Some increase in clouds with large anomalous dark feature in blue and green light centered near 10N, 165W.

Rain continues: Time to sell scope and take up mushroom farming!

Best,

MARS IMAGES 27 September 2003

 

D.C. Parker, Coral Gables, FL. 16-in (41cm) Newtonian

ST9XE CCD Camera Eyepiece Projection @ f/55.4

Integration Times: RRGB Images

RED (RG610 Red Filter, 610-1100nm: NO IR Rejection) 0.12-0.15s 2 images

GREEN (CFW8C, 531nm central; BWHM 86nm) 0..38-0.40s 5-9 images

BLUE (CFW8C, 450nm central, BWHM 116nm) 1.40-1.50s 7-10 images

Images bias,flat and dark corrected.

 

Seeing fair (6-7 Pickering). Transparency 4m, haze.

Wind SSE 1-6 kts. Altitude = 40-48 degrees. No dew.

 

Violet Clearing = 0 visually and on CCD images. Some SPC rifts detected.

Increase in clouds: Localized cloud over Tharsis, brightened as planet rotated.

Prominent AM cloud over Amazonis with finger-like streaks extending southeast into Memnonia.

NOTE: Large anomalous dark feature seen in blue and green light , centered near 10N, 165W.

 

. . . . . . . . Date: Tue, 07 Oct 2003 22:36:53 +0000

Subject: Mars Images

 

Hi All,

Here are some Mars images from 4 October. Ls=273 degrees -- 25 December on

Mars. Merry Christmas!

Best,

MARS IMAGES 4 October 2003

 

D.C. Parker, Coral Gables, FL. 16-in (41cm) Newtonian

ST9XE CCD Camera Eyepiece Projection @ f/55.4

Integration Times: RRGB Images

RED (RG610 Red Filter, 610-1100nm: NO IR Rejection) 0.14-0.25s 1-4 images

GREEN (CFW8C, 531nm central; BWHM 86nm) 0..38-0.70s 3-7 images

BLUE (CFW8C, 450nm central, BWHM 116nm) 1.40-2.50s 2-14 images

Images bias,flat and dark corrected.

 

Poor conditions:

Seeing fair (4-6 Pickering). Transparency variable and poor (0- 4m) dur to fast cumulus and stratus clouds.

Wind NNE 2-16 kts. Altitude = 44-48-33 degrees. No dew.

 

NP Hood conspicuous; thick clouds over Acidalium M. AM limb clouds. PM limb haze.

Anomalous dark features in blue light seen north of Solis Lacus and in eastern Memnonia.

 

. . . . . . . .Date: Wed, 08 Oct 2003 23:17:00 +0000

Subject: Mars Images

 

Hi All,

I have attached some Mars images from 7 October.

Best,

MARS IMAGES 7 October 2003

 

D.C. Parker, Coral Gables, FL. 16-in (41cm) Newtonian

ST9XE CCD Camera Eyepiece Projection @ f/55.4

Integration Times: RRGB Images

RED (RG610 Red Filter, 610-1100nm: NO IR Rejection) 0.13-0.16s 2-3 images

GREEN (CFW8C, 531nm central; BWHM 86nm) 0..35-0.45s 3-9 images

BLUE (CFW8C, 450nm central, BWHM 116nm) 1.30-1.90s 3-7 images

Images bias,flat and dark corrected.

 

Poor conditions:

Seeing fair (4-6 Pickering). Transparency variable (0- 4.5m) due to fast cumulus clouds.

Severe Wind ENE 5-21 kts. Altitude = 46-49 degrees. No dew.

 

Violet Clearing 0-1+ visually. Hellas very bright in blue and green light.

Details on the floor of Hellas seen in red light.

Delicate AM limb haze. Syrtis Blue Cloud on PM limb.

 

. . . . . . . .Date: Thu, 09 Oct 2003 06:45:18 +0000

Subject: Mars Images

 

Hi All,

I have attached a Mars image from 9 Oct taken with a web cam. Some dust in northwest Hellas and haze over Iapygia.

Best,

 

 


Don PARKER (Miami, FL, USA)

park3232@bellsouth.net


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