2003 05 04 DPk Note
Don PARKER's Images on 4 May 2003
at 09:43~10:20 GMT

  λ=179°Ls,   (ω=116°, 125°W,   φ=17°S),   δ=9.7",   ι (phase angle)=43°

Seeing fair (5-7, Pickering). Transparency 5m+.
No Wind. Heavy dew. Altitude = 36-42°.


"W" Cloud very conspicuous over Tharsis volcanoes. Thin clouds over Olympus and Amazonis. Thin AM limb arc.
SPC brilliant; NP Hood forming. Phasis, Gallineria Silva, and Acampsis conspicuous. Araxes again doubled.
The thin dark line north of the southern maria prominent, broken.

PARKER uses a 41 cm Newtonian working at f/55 with an eyepiece projection together with an SBIG ST9XE ccd camera, equipped with a CFW-8C filter wheel and RGB interference filters

Integration times:
  Red      (610 - 1100nm) : 0.11s   20-35 images   (RG610, NO IR Rejection)
  Green   (488 - 574nm) : 0.43s    6-10 images
  Blue      (392 - 508nm) : 1.70s   6-9 images
Images bias, flat and dark corrected.

Observer: Donald C PARKER, Coral Gables,  FL.  USA

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