2003 03 25 DPk Note
Don PARKER's Images on 25 March 2003 at 10:42 UTC

  λ=158°Ls,   ω=157°W,   φ=8°S,   δ=7.2",   ι (phase angle)=40°

Seeing very poor (2 - 3, Pickering). Transparency 4.0m.
Wind N 01-kts. No dew. Altitude = 37°.

The SPH is conspicuous, bright in Blue. Sirenum M is very dark with Titanum S. Conspicuous clouds confluent with SPH over Zephyria, Amazonis, and western Tharsis. No bright orographics near PM limb.

PARKER used a 25 cm Mewlon (Dall Kirkham) working at f/77 with an eyepiece projection. together with an SBIG ST9XE ccd camera, equipped with a CFW-8C filter wheel and RGB interference filters as well as a luminance Red RG610 Schott filter.

Integration times:
    RG610 (610 -1100nm):   0.50s   22 images
    Red     (612 -   670nm):   1.00s     5 images
    Green   (488 -   574nm):  1.30s     5 images
    Blue     (392 -   508nm):   5.00s     4 images
Images biased, flat and dark corrected.

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

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