2003 0713 DPk Note
Don PARKER's Images on 13 July 2003
at 08:28~ 09:01 GMT

  λ=221°Ls,   (ω=148°~ 157°W,   φ=21°S),   δ=18.9",   ι (phase angle)=33°

Seeing fair (5-7, Pickering). Transparency variable (0-5.0 m) with frequent fast cumulus clouds.
Wind E 7-14 kts. No dew. Altitude = 51°.

Note:
Minimal clouds. Only a small orographic over Arsia Mons. Thin AM limb arc. Light haze over Eridania, bright in green.
Possible small dust cloud in Northern Electris near southern border of Atlantis I. Trivium-Cerberus remains weak.
SPC rifts prominent: Ulyxix Fr., Rima Australis, Magna Dep. Thyles Mons bright near CM.
Violet Clearing = 0. Olympus very dark in blue and green.

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) : 0.12s   1-2 images   (RG610, NO IR ejection)
  Green   (488 - 574nm) :  0.37-0.39s   5-9 images
  Blue      (392 - 508nm) : 1.20s   5-7 images
Images bias, flat and dark corrected.

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


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