2003 05 30 DPk Note
Don PARKER's Images on 30 May 2003
at 09:03~09:58 GMT

  λ=194°Ls,   (ω=215°~ 229°W,   φ=20°S),   δ=12.2",   ι (phase angle)=43°

Seeing good (8-9, Pickering). No wind. Transparency 4m with high haze/fog.
Heavy dew. Altitude = 43-47°.

Small localized clouds (rotate with planet) on SW limb over extreme eastern Hellas, western Ausonia. These are well-defined in red light, very bright in blue and green. Thin AM limb arc; north polar clouds. Elysium cloud free.
Trivium-Cerberus remains weak; Hyblaeus Extension very dark, appears elongated, most likely due to foreshortening.

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   33-38 images   (RG610, NO IR Rejection)
  Green   (488 - 574nm) : 0.39s    8-9 images
  Blue      (392 - 508nm) : 1.40s   9-13 images
Images bias, flat and dark corrected.

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

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