λ=258°Ls, (ω=271°, 284°W, φ=19°S), δ=24.3", ι=12°
Seeing generally poor (3 Pickering) initially but improved (7) late. Transparency 4 m, frequent clouds.
Wind NE 6-12 kts. Altitude = 47-48°. No dew.
Note:
Violet Clearing = 1+ visually and on CCD blue images. Cloud band SE of NP Hood on 8 Sept now
barely detectable. AM limb clouds -- non-rotating.
Note: Floor of Hellas has changed; normal albedo features (Zea Lacus, Peneus, etc.)
no longer visible -- replaced by dark streaks.
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) : 0.16-0.17s 2-4 images (RG610, NO IR ejection)
Green (488 - 574nm) : 0.50s 7-9 images
Blue (392 - 508nm) : 2.00s 6-11 images
Images bias, flat and dark corrected.
Observer: Donald C PARKER, Coral Gables, FL. USA