2003 0927 DPk Note
Don PARKER's Images on 27 September 2003
at 01:23~ 03:36 GMT

  λ=269°Ls,   (ω=082°~ 114°W,   φ=20°S),   δ=21.5",   ι=24°

Seeing fair (6-7 Pickering). Transparency 4m, haze.
Wind SSE 1-6 kts. Altitude = 40-48°. No dew.

Violet Clearing = 0 visually and on CCD images. Some SPC rifts detected. Increase in clouds: Localized cloud over Tharsis, brightened as planet rotated. Prominent AM cloud over Amazonis with finger-like streaks extending southeast into Memnonia.
NOTE: Large anomalous dark feature seen in blue and green light , centered near 10°N, 165°W.

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) :   0.12-0.15s   2 images   (RG610, NO IR ejection)
  Green   (488 - 574nm) :    0.38-0.40s   5-9 images
  Blue      (392 - 508nm) :   1.40-1.50s   7-10 images
Images bias, flat and dark corrected.

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

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