2003 0819 DPk Note
Don PARKER's Images on 19 August 2003
at 05:02~ 05:31 GMT

  λ=244°Ls,   (ω=122°~ 129°W,   φ=19°S),   δ=24.8",   ι=10°

Seeing good (7-8 Pickering). Transparency 2-5+ m with freq fast cumulus, and thin clouds.
Wind SE 0-2 kts. Altitude =45-48°. Light dew

SPC rifts and outliers prominent. NP Hood remains bright in blue. Small orographic cloud over Arsia Mons, brightens as it moves toward evening limb. No evidence of dust. Violet clearing = 1+. Region around Olymous Mons appears as a conspicuous light areole in red light.

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   3-6 images   (RG610, NO IR ejection)
  Green   (488 - 574nm) :  0.33s   6-10 images
  Blue      (392 - 508nm) : 1.15s   7-8 images
Images bias, flat and dark corrected.

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

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