LtE in CMO #257
From
Donald C PARKER
@. . . . . . .
. Date:
From:
Donald Parker
To: vzv03210@nifty.com
Subject:
Re: Happy Birthday!
Dear
Masatsugu, Hiroshi, Yukio, Masami, and Hitomi,
Thank
you all so much for taking the time to send me the birthday card. It was quite
a surprise! --Especially the drawing of me with my telescope!
In fact, I am about to observe Mars...since
it is my birthday, I don't have to feel guilty about being late for dinner!
Thanks
again for your kind thoughts,
Best,
@ . . . . . .
Here are more Mars images from 28 Jan and 2 Feb. Note the
darkening in Daedalia -- a change since the dust storm. The seeing here has
been poor.
Hopefully we can get observations of this
region by those of you to the west of Miami.
Best,
(3 February 2002 email)
>MARS IMAGES 28-29 JANUARY, 2002
>
>D.C.
Parker,
> Eyepiece Projection @ f/44.2
> Integration Times:
> BLUE (Koheisha, 445nm peak central; BWHM
105nm) 3.12s
> GREEN (Koheisha, 540nm peak central; BWHM
75nm) 1.10s
> RED (RG610 - No IR Rejection) 0.24s
> Images flat and dark corrected.
>
>Seeing
fairly good (5-7, Pickering). Transparency 4.5m.
>Wind,
however, was a problem: E 1-8 kts. Altitude = 47-43 degrees. No dew.
>
>Note:
Daedalia appears to have darkened between 115 to 130 degrees W. Solis L.
>dark and
conspicuous near PM limb; Ambrosia detected.
>PM limb
and northern haze. Bright streak across Thaumasia-Claritas.
>Spc
detected visually at 465X.
>
>MARS IMAGES
>
>D.C.
Parker, Coral Gables, FL. Lynxx PC
camera 16-in (41cm) F/6 NEWTONIAN
> Eyepiece Projection @ f/44.2
> Integration Times:
> BLUE (Koheisha, 445nm peak central; BWHM
105nm) 3.80s
> GREEN (Koheisha, 540nm peak central; BWHM
75nm) 1.28s
> RED (RG610 - No IR Rejection) 0.28s
> Images flat and dark corrected.
>
>Seeing
very poor (2-3, Pickering). Thunderstorms in area. Transparency 3.5m.
>No wind. Altitude
= 35-33 degrees. Heavy dew.
>
>Note:
Again, Daedalia appears to have darkened between 110 to 130 degrees W.
>The
darkening joins eastern Sirenum M. to Phasis/Galineria Silva, giving
>Solis
Lacus the "Eye of Mars" appearance.
>Ambrosia
and Nectar detected as was the Tithonius Complex. Eastern Thaumasia
>between
Solis L. and Aurorae S. is very bright. PM limb haze, extending into
>Tharsis.
>
@ . . . . . .
Here are some Mars images from 3 Feb. Again, the
darkening in Daedalia-Claritas is conspicuous, forming a streak between Sirenum
Sinus and Solis Lacus. In addition, the tiny SPC is visible.
Best,
(5 February 2002 email)
>MARS IMAGES
>
>D.C.
Parker, Coral Gables, FL. Lynxx PC
camera 16-in (41cm) F/6 NEWTONIAN
> Eyepiece Projection @ f/44.2
> Integration Times:
> BLUE (Koheisha, 445nm peak central; BWHM
105nm) 3.80s
> GREEN (Koheisha, 540nm peak central; BWHM
75nm) 1.30s
> RED (RG610 - No IR Rejection) 0.28s
> Images
flat and dark corrected.
>
>Seeing
good (6-7, Pickering). Transparency only 3.5-4.0m.
>Wind SSE
0-8 kts. Altitude = 43-38 degrees. No dew.
>
>Note:
Again, Daedalia and now Claritas dark, forming a dark streak connecting
>Sirenum
Sinus with Solis Lacus. Solis Lacus
small.
>The
Tithonius Complex is visible. Nectaris Palus and Aurorae Sinus dark.
>Eastern
Thaumasia between Solis L. and Aurorae S. is very bright.
>Argyre
very bright on SE limb. PM limb haze broad. SPC tiny.
>
@ . . . . . .
Attached are some belated Mars images -- finally getting caught up!
Best,
(7 February 2002 email)
>MARS IMAGES 28 DECEMBER, 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) 1.20s
> RED (RG610 - No IR Rejection) 0.21s
> Images flat and dark corrected.
>
>Seeing
poor (2-3, Pickering). Transparency poor, 0-4.0m with high cirrus.
>Wind S 0-3
kts. Altitude = 50 degrees. No dew.
>
>Solis
Lacus small, dark with "canals" in Thaumasia visible: Nectar,
Ambrosia,
>Acampsis,
Tithonius, Chalus, and Agathadaemon.
>Argyre
very bright in red and green. Chryse on NE limb was very bright in
>all
colors.
>
>MARS IMAGES 14
JANUARY, 2002
>
>D.C.
Parker, Coral Gables, FL. Lynxx PC
camera 16-in (41cm) F/6 NEWTONIAN
> Eyepiece Projection @ f/44.2
> Integration Times:
> BLUE (Koheisha, 445nm peak central; BWHM
105nm) 3.80-5.60s
> GREEN (Koheisha, 540nm peak central; BWHM
75nm) 1.32-1.80s
> RED (RG610 - No IR Rejection) 0.30-0.36s
> Images flat and dark corrected.
>
>Seeing
good (8, Pickering). Transparency poor, only 3.0-4.5m with high cirrus.
>Wind S 0-6
kts. Altitude = 49-41 degrees. Moderate dew.
>
>Hellas
light with some detail visible on its floor: Zea Lacus. Hadriacum M.
>well
delineated, splitting into Euripides and Hadria before joining Promethei
>Sinus.
>SPC small
but visible. Moderate PM limb haze.
>
>MARS IMAGES 20
DECEMBER, 2001
>
>D.C.
Parker, Coral Gables, FL. Lynxx PC
camera 16-in (41cm) F/6 NEWTONIAN
> Eyepiece Projection @ f/44.2
> Integration Times:
> RED (RG610 - No IR Rejection) 0.24-0.40s
> Images flat and dark corrected.
>
>Seeing
poor (2-3, Pickering): post cold front. Transparency poor,
>only
3.0-0m with waves of clouds. Due to this and the seeing, unable to obtain
>blue and
green images. Wind NNW 0-5 kts. Altitude = 49-41 degrees. No dew.
>
>Despite
poor conditions, the Maria Sirenum, Cimmerium, and Chromium conspicuous.
>Solis
Lacus on PM limb. NOTE: Daedalia-Claritas dusky.
>
>
>MARS IMAGES 25 JANUARY, 2002
>
>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) 1.16s
> RED (RG610 - No IR Rejection) 0.24s
> Images flat and dark corrected.
>
>Seeing
poor (3-5, Pickering). Transparency 4.0-4.5m.
>Wind SSW
1-7 kts. Altitude = 47 degrees. No dew.
@ . . . . . .
Here are some images from 15
November that I forgot to send! Poor seeing but interesting SPC outliers on
SW limb.
Best,
(8 February 2002 email)
>MARS IMAGES
>
>D.C.
Parker, Coral Gables, FL. Lynxx PC
camera 16-in (41cm) F/6 NEWTONIAN
> Eyepiece Projection @ f/44.2
> Integration Times:
> BLUE (Koheisha, 445nm peak central; BWHM
105nm) 2.92s
> GREEN (Koheisha, 540nm peak central; BWHM
75nm) 0.94s
> RED (RG610 - No IR Rejection) 0.20s
> Images flat and dark corrected.
>
>Seeing poor (3-4, Pickering). Transparency 4-4.5m).
Wind W 0-1 kts.
>Altitude =
40 degrees. No dew.
>Albedo
features appear fairly normal in morphology and intensity both visually
>East limb
and arctic hazes persist. SPC tiny, bright with "outlier"
>near SW
limb.
Don PARKER (Miami, FL, USA )