2003 0817 DPk Note
Don PARKER's Images on 17 August 2003
at 04:29~ 05:28 GMT

  λ=243°Ls,   (ω=132°~ 146°W,   φ=19°S),   δ=24.7",   ι=11°

Seeing variable (4-7 Pickering), improved late.
Transparency 4-6 m with haze, freq fast cumulus, very good after lightning storms passed!
Wind NE-SE 2-10 kts. Altitude =40-47°.

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 and green 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) : 0.11-0.14s   1-5 images   (RG610, NO IR ejection)
  Green   (488 - 574nm) :  0.30s   6-9 images
  Blue      (392 - 508nm) : 1.00-1.15s   6-10 images
Images bias, flat and dark corrected.

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

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