2003 1205 DPk Note
Don PARKER's Images on 5-6 December 2003
at 23:17~ 00:05 GMT

  λ=311°Ls,   (ω=107°~ 117°W,   φ=26°S),   δ=10.5",   ι=42°

Seeing variable, occasionally good (avg. 3-5 Pickering). Transparency = 4-4.5m.
Wind SE 0-2 kts. Altitude = 59-61°. No dew. Just before cold front.

Conspicuous bank of localized clouds over Tharsis extending from western sides of Arsia, Pavonis and Ascraeus volcanoes to terminator. Rotates with planet. Olympus Mons seen near terminator. Cloud also over NE Tharsis. Delicate cloud patch just north of SPC. Violet clearing = 0.

PARKER uses a 41 cm Newtonian working at f /59 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) : 0.16-0.18s   2-3 images   (RG610, NO IR ejection)
  Green  (488 -  574nm)  : 0.68s   3-5 images
  Blue     (392 -  508nm)  : 2.60s   4-6 images
Images bias, flat and dark corrected.

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

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