From
Donald C PARKER
@. . . . . . . . .Here
are some Mars images from 24
Oct. Some dust streaks remain. Interesting SPC and environs. Best,
(
>MARS
IMAGES 24 OCTOBER, 2001
>
>D.C. Parker,
>
Eyepiece Projection @ f/44.2
>
Integration Times:
> BLUE
(Koheisha, 445nm peak central; BWHM 105nm)
2.76s
> GREEN
(Koheisha, 540nm peak central; BWHM 75nm)
0.94s
> RED (RG610 -
No IR Rejection)
0.21s
>
Images flat and dark corrected.
>
>Seeing fair,variable (3-6,
>0-2 kts. Altitude = 38-30 degrees. No dew.
>
>Albedo features more distinct but dust streaks still
present across Eos and
>Erythraeum M. However, fine details like Hydrae S.,
Hydraotes, and Cantabras
>visible. PM limb and arctic haze still very prominent.
>Note white cloud north of SPC in Ogygis R. SPC small,
bright with small
>western projection discernible in red light -- possibly
"Mountains of
>Mitchell," or Novus Mons.
>
@ . . . . . . . Here
are some Mars images from 8
and 11 November.
Things look back to normal for the season. Best,
(
>MARS
IMAGES 8-9 NOVEMBER, 2001
>
>D.C. Parker,
>
Eyepiece Projection @ f/44.2
> Integration
Times:
> BLUE
(Koheisha, 445nm peak central; BWHM 105nm)
2.60s
> GREEN
(Koheisha, 540nm peak central; BWHM 75nm)
0.82s
> RED (RG610 -
No IR Rejection)
0.18s
>
Images flat and dark corrected.
>
>Seeing good (7-8,
>Altitude = 44-41 degrees. Mild dew.
>Albedo features appear fairly normal in morphology and
intensity both visually
>and on CCD. Hesperia clear of dust. Cimmerium M. dark
with Laestrygonum Sinus
>prominent. Scamander seen separating Eridania and
Electris. Trivium-Cerberus
>barely visible, possibly because of the axial tilt.
>East limb and arctic haze persists. SPC tiny, bright
with "outliers" to its
>north and west.
>
>MARS
IMAGES 11-12 NOVEMBER,
2001
>
>D.C. Parker,
>
Eyepiece Projection @ f/44.2
>
Integration Times:
> BLUE
(Koheisha, 445nm peak central; BWHM 105nm)
3.00s
> GREEN
(Koheisha, 540nm peak central; BWHM 75nm)
0.92s
> RED (RG610 -
No IR Rejection)
0.21s
>
Images flat and dark corrected.
>
>Seeing fair (5,
>clouds.
>Albedo features appear fairly normal in morphology and
intensity both visually
>and on CCD. Cimmerium M. and Sirenum M. dark. Scamander
again seen separating
>Eridania and Electris. Trivium-Cerberus possibly
visible as faint halftone on
>NW limb.
>East limb and arctic hazes persist. SPC tiny, bright.
>
@ . . . . . . . Here
are some Mars images from last night. Note the darkening in Daedalia-Claritas,
much like that seen in 1973. Also a bright (in red and green) cloud over Ogygis
R., Argyre, and eastern
(
>MARS
IMAGES 20-21 NOVEMBER,
2001
>
>D.C. Parker,
>
Eyepiece Projection @ f/44.2
>
Integration Times:
> BLUE
(Koheisha, 445nm peak central; BWHM 105nm)
3.40s
> GREEN (Koheisha, 540nm peak central; BWHM
75nm) 1.12s
> RED (RG610 -
No IR Rejection)
0.24s
>
Images flat and dark corrected.
>
>Seeing poor (3,
>clouds. No wind. Altitude = 43 degrees. Mild dew.
>
>Note bright cloud on SE limb over
>small.
NOTE: darkening in
Daedalia-Claritas, similar to that seen in 1973. Bright
>spot east of Solis Lacus in eastern Thaumasia. Aurorae
S. and Nectaris P.
>prominent but the Tithonius complex weak to absent.
>SPC tiny, bright. Evening limb haze persists.
>
@ . . . . . . . Here are some Mars images
from 21 November.
Best,
(
>MARS
IMAGES 21 NOVEMBER, 2001>
>D.C. Parker,
>
Eyepiece Projection @ f/44.2
>
Integration Times:
> BLUE
(Koheisha, 445nm peak central; BWHM 105nm)
3.60s
> GREEN
(Koheisha, 540nm peak central; BWHM 75nm)
1.14s
> RED (RG610 -
No IR Rejection)
0.25s
>
Images flat and dark corrected.
>
>Seeing good
(5-8,
>Wind NE 0-1 kts. Altitude = 47 46degrees. No dew.
>
>Solis Lacus dark, small. Darkening in Daedalia-Claritas
still observed.
>Aurorae S. and Nectaris P. prominent, dark. The
Tithonius complex weak but
>visible. Nectar, Ambrosia, Noctis Lacus,
>bright in all filters, with Nereidum Fr. seen
separating them.
>SPC tiny, bright. Bright evening limb haze persists.
>
Don PARKER (
