2003 04 22 DPk Note
Don PARKER's Images on 22 April 2003 at 09:34~10:23 GMT

  λ=173°Ls,   (ω=230°, 234°, 242°W,   φ=15°S),   δ=8.8",   ι (phase angle)=43°

Seeing good (6-7, Pickering). Transparency 4m.
No wind. Light dew. Altitude = 35-40°.

SP Hood remains bright; "Lifesaver Effect." SW Limb cloud over S. Hellas. Slight PM cloud over Elysium.
Hellas dull in red light; Zea Lacus detected. Minimal AM limb arc; no Syrtis Blue cloud.
Hyblaeus Extension very dark, elongated. Trivium-Cerberus remains weak. Cerberus III and Euripus II visible with Cerberi S. being small, dark. Mosa detected connecting Tritonis Sinus to Syrtis Minor.

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 as well as a luminance Red RG610 Schott filter.

Integration times:
  RG610 (610 -1100nm): 0.12s 19-58 images
  Red      (612 - 670nm) : 0.29s    1 image
  Green   (488 - 574nm) : 0.48s    15 images
  Blue      (392 - 508nm) : 2.00s   16 images
Images bias, flat and dark corrected.

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

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