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

Note:
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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