2003 03 16 DPk Note
Don PARKER's Images on 16 March 2003 at ω=236°W

  λ=153°Ls,   φ=6°S,   δ=6.8",   ι (phase angle)=40°

Seeing 4, Pickering. Transparency 3.5 -4.0m. No wind. Light dew. Altitude = 30 -32°.

SPH conspicuous, bright in blue. Hyblaeus Extension very broad, dark.
Alcyonius detected near NW limb with ? Eunosos II faintly seen.
Cerberus remains weak. Hesperia, Gomer S. and possibly Cyclops visible.
No significant orographics over Elysium, but seeing and small apparent diameter made blue-light images difficult.

PARKER uses a 41 cm Newtonian working at f/72 with an eyepiece projection. SBIG ST9XE ccd camera is used, equipped with a CFW-8C filter wheel and RGB interference filters as well as a luminance red Schott filter.

Integration times:
RG610 (610 -1100nm): 0.25s 25 images
Red      (612 - 670nm) : 0.56s   4 images
Green   (488 - 574nm) : 0.88s   4 images
Blue      (392 - 508nm) : 3.50s   8 images
Images biased, flat and dark corrected.

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

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