2003 0822 DPk Note
Don PARKER's Images on 22 August 2003
at 04:11~ 05:18 GMT

  λ=246°Ls,   (ω=085°~ 100°W,   φ=19°S),   δ=25.0",   ι=8°

Seeing fair (6-7 Pickering). Transparency 4-4.5 m with thin haze and fast cumulus clouds.
Wind ESE 3-10 kts. Altitude =41-48°. No dew.

Violet clearing has increased, = 2+. Thyles Mons breaking away from AM side of the SPC. NP hood not as conspicuous as during last few weeks. No dust. Some limb hazes, but Martian atmosphere otherwise clear.
Olympus Mons region bright near NW limb -- possible ice fogs at its base? The Tithonius region, north of Solis Lacus has become dark and broad, much like it did in 1926-1929.

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) : 0.12-0.13s   1-3 images   (RG610, NO IR ejection)
  Green   (488 - 574nm) :  0.33s   8-11 images
  Blue      (392 - 508nm) : 1.00s   7-11 images
Images bias, flat and dark corrected.

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

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