LtE in CMO #260

From Donald C PARKER

©. . . . . . . . . . .Date: Tue, 07 May 2002 01:57:32 +0000

From: Donald Parker <park3232@bellsouth.net>

Subject: Mars Images

Hi All,

Here are some more Mars images from March (11 March & 13 March) -- sorry, I forgot to send them!

Best,

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

Eyepiece Projection @ f/55

Integration Times:

RED (RG610 - No IR Rejection) 0.32s

Images flat and dark corrected.

Poor Conditions: Seeing poor (3, Pickering). Transparency = 4.5m.

Wind NNE and gusty 5-12 kts. Altitude = 24 degrees. No dew.

Despite poor seeing, wind, and low altitude, the Daedalia-Claritas darkening

is apparent near CM.

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

Eyepiece Projection @ f/55

Integration Times:

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

GREEN (Koheisha, 540nm peak central; BWHM 75nm) 2.20s

RED (RG610 - No IR Rejection) 0.52s

Images flat and dark corrected.

Seeing fair to poor (4-5, Pickering). Transparency = 4.5m. Wind S - SW and

gusty 0-11 kts. Altitude = 36-33 degrees. No dew.

Aurorae Sinus and Nectaris Palus dark and conspicuous; Solis Lacus very small.

Dark streak running from Western Solis L. to terminator (Daedalia-Claritas.)

Eastern Thaumasia light. Acidalium-Nilokeras noted on NE limb.

Don PARKER (Miami, FL, USA )