2003 0812 DPk Note
Don PARKER's Images on 12 August 2003
at 08:23~ 09:42 GMT

  λ=240°Ls,   (ω=231°, 234°W,   φ=20°S),   δ=24.1",   ι=16°

Seeing fair (5-6 Pickering). Transparency 4-4.5 m.
Light wind SE 0-4 kts. Post thunderstorm. Altitude =46-44°.

Mars's atmosphere clear: no dust clouds. A few small AM limb clouds and haze on SE terminator. No Elysium clouds.
NP hood bright in blue. Hyblaeus Extension dark. Trivium-Cerberus only 2 dots. 1-2+ violet clearing.

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) : 0.14s   1 image   (RG610, NO IR ejection)
  Green   (488 - 574nm) :  0.34s   7-10 images
  Blue      (392 - 508nm) : 1.25s   6-7 images
Images bias, flat and dark corrected.

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

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