2003 04 28 DPk Note
Don PARKER's Images on 28 April 2003 at 10:17 GMT

  λ=176°Ls,   (ω=183°W,   φ=16°S),   δ=9.3",   ι (phase angle)=43°

Seeing good (7-8, Pickering). Transparency 4-5m.
Wind NE 2-9 kts. No dew. Altitude = 36-40°.

SPC breaking through hood. Note very delicate PM cloud on terminator over Olympus Mons.
Thin AM limb arc and some N. Polar clouds-- ? NPH forming.
Propontis I, Hyblaeus very dark. Trivium-Cerberus remains weak.
As in the past several apparitions, a dark streak noted along northern borders of Cimmerium M. and Sirenum M. This has been most conspicuous near quadrature.

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): 0.13s 25 images
  Red      (612 - 670nm) : 0.31s    1 image
  Green   (488 - 574nm) : 0.50s    8 images
  Blue      (392 - 508nm) : 2.10s   12 images
Images bias, flat and dark corrected.

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

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