LtE in CMO #242

From Don PARKER

@. . . . . . Here are some Mars images from last week. Am using an ST-237 camera in addition to the Lynxx.

Best,

(1 April2001 email)

MARS IMAGES 26 Mar., 2001

D.C. Parker, Coral Gables, FL.  Lynxx PC camera  16-in (41cm) F/6 NEWTONIAN

            Eyepiece Projection @ f/55.2

            Integration Times:

    BLUE (Koheisha, 445nm peak central; BWHM 105nm)   7.20s

    GREEN (Koheisha, 540nm peak central; BWHM 75nm)   3.00s

    RED (RG610 - No IR Rejection)                     0.56s

                     Images flat and dark corrected.

Seeing fair (5-6, Pickering).Transparency good (5m). No wind.

Altitude = 41-42 degrees. Moderate dew.

Bright cloud over N. Syrtis Major. Possible ECB across Moab.

Morning cloud over Chryse.

 

MARS IMAGES 26 Mar., 2001

D.C. Parker, Coral Gables, FL.  PixCel 237 camera  16-in (41cm) F/6 NEWTONIAN

            Eyepiece Projection @ f/58  Processed AIP4Win

            Integration Times:

    BLUE (Koheisha, 445nm peak central; BWHM 105nm)   0.65s

    GREEN (Koheisha, 540nm peak central; BWHM 75nm)   0.27s

    RED (RG610 - No IR Rejection)                     0.05s

                     Images flat and dark corrected.

Seeing fair (5-6, Pickering).Transparency good (5m). No wind.

Altitude = 39 degrees. Moderate dew.

Bright bluish cloud over N. Syrtis Major. Possible ECB across Moab.

Morning cloud over Chryse. Hellas bright.

 

@. . . . . . Have attached some Mars images from this morning under rather poor conditions.

Best,

(4 April 2001 email)

MARS IMAGES 3 Apr., 2001

D.C. Parker, Coral Gables, FL.  Lynxx PC camera  16-in (41cm) F/6 NEWTONIAN

            Eyepiece Projection @ f/55.2

            Integration Times:

    BLUE (Koheisha, 445nm peak central; BWHM 105nm)   6.00s

    GREEN (Koheisha, 540nm peak central; BWHM 75nm)   2.80s

    RED (RG610 - No IR Rejection)                     0.56s

                     Images flat and dark corrected.

Seeing poor (3, Pickering).Transparency good (5m). Wind very gusty at 5-14 kts ENE. Altitude = 41-40 degrees. No dew.

Despite poor seeing some red light images reveal details on Hellas' floor: Alpheus and possibly Zea Lacus. Elysium orographic bright. Bright morning limb cloud--non-rotating. Cerberus III detected on 09:18 image.

Nilosyrtis and Astusapes faintly seen. Hyblaeus Extension dark.

 

@. . . . . . Yes, I am always happy to have you upload any of my images....and thanks for correcting the CM! I fear that I am having more "senior moments!" After some tests I am afraid that the Lynxx provides sharper images than the 237. Too bad, since the 237 is a much faster chip. Will be borrowing an ST5C and try that out. Will let you know the results.

Best,

(5 April 2001 email)

 

@. . . . . . Here are some more Mars images from 5 April. Note Trivium-Cerberus remains weak.

Best,

(6 April 2001 email)

MARS IMAGES 5 Apr., 2001

D.C. Parker, Coral Gables, FL.  Lynxx PC camera  16-in (41cm) F/6 NEWTONIAN

            Eyepiece Projection @ f/55.2

            Integration Times:

    BLUE (Koheisha, 445nm peak central; BWHM 105nm)   6.60s

    GREEN (Koheisha, 540nm peak central; BWHM 75nm)   2.80s

    RED (RG610 - No IR Rejection)                     0.60s

                     Images flat and dark corrected.

Seeing poor (3, Pickering).Transparency fair (4m). No wind.

Altitude = 39-40 degrees. Moderate dew.

Elysium orographic cloud bright but brighter in green than in blue.

Diffuse cloud bands in Zephyria, Aeolis, and Libya. Bright morning limb cloud

non-rotating. SPH broken. Trivium-Cerberus still weak.

 

@. . . . . . Here are some Mars images from this morning.

Best,

(7 April 2001 email)

MARS IMAGES 6 Apr., 2001

D.C. Parker, Coral Gables, FL.  Lynxx PC camera  16-in (41cm) F/6 NEWTONIAN

            Eyepiece Projection @ f/47.8

            Integration Times:

    BLUE (Koheisha, 445nm peak central; BWHM 105nm)   4.40s

    GREEN (Koheisha, 540nm peak central; BWHM 75nm)   2.16s

    RED (RG610 - No IR Rejection)                     0.44s

                     Images flat and dark corrected.

Seeing very good (8, Pickering).Transparency variable (0-4m) due to frequent clouds. Gusty NE wind, 2-10 kts. Altitude = 38-39 degrees. No dew.

Elysium orographic cloud bright but brighter in green than in blue.

Diffuse cloud bands in Zephyria. Bright morning limb cloud/haze. SPH broken.

Trivium-Cerberus still weak. Cerberus III detected. Hesperus very dark.

 

 

Don PARKER ( FL, USA )  
 dparker@netside.net

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