MARS IMAGES 8 Feb., 2000
D.C. Parker, Coral Gables, FL. Lynxx PC camera 16-in (41cm) F/6 NEWTONIAN
Eyepiece Projection @ f/55.2
Integration Times:
BLUE (Koheisha, 445nm peak central; BWHM 105nm) 6.80s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 2.68s
RED (RG610 - No IR Rejection) 0.60s
Images flat and dark corrected.
Seeing fair to good (7, Pickering). Transparency variable (0-5m) due to
frequent fast cumulus. Wind E 0-14 kts, gusty. Altitude = 44-45 degrees.
No dew. All images are composites.
Solis Lacus - Tithonius complex appears normal for season. Tiny NPC remnant
detected visually. Bright morning limb cloud/haze confluent with band cloud
from Tharsis-Candor across Ganges and into Chryse.
Toshihiko-Ikemura Japan
P=37.3293718 Toshihiko-Ikemura Japan
Date (UT): February 11, 2001 Time (UT): 11:00 (left image), 11:30 (right image) CM: 034.2 (left image), 041.5 (right image) Ls: 115.8, De: 9.7N, Ds: 22.2N Diameter (arc-seconds): 6.8 Telescope: 8-inch (20-cm) f/10 Sch/Cass Mag.: 406x, 472x Filters: Wratten 23A, 30, 38A, 64 Seeing (1-10): 5-7, Antoniadi (I-V): III-II Transparency (1-6): 5 Violet (W47, or blue (W38A)) Clearing (1-3): 1-2 Notes: 11:00 UT A drawing of Mars obtained through a red (Wratten (W) 23A) = filter. The North Polar Cap (NPC) appears brilliant (10/10) over the = north polar limb surrounded by a shaded (6/10) collar consisting of = Ortygia, Baltia, and Mare Boreum. Mare Acidalium appears prominent = (3-4/10) on the CM separated from an equally dark (3-4/10) Niliacus = Lacus by a very bright to extremely bright (8-9/10) Achillis Pons ( the = haze or cloud appears to extend towards the west over Tempe). Nilokeras = appears to be partially visible (5/10) extending from Niliacus Lacus. = Mare Erythraeum appears dark to dusky (3-4/10) on the CM. A thin very = bright 8/10) haze appears over Eos at it's northern border. Margaritifer = Sinus and Aurorae Sinus both appear dark (3/10) as well. The following = half of Sinus Meridiani is visible along the preceding (evening) limb = separated from Margaritifer Sinus by a very bright (8/10) haze over = Deucalionis Regio-Aram. Solis Lacus (and Nectar) are visible towards the = following limb beneath an extremely bright (9/10) morning limb haze = (MLH). Eden, Cydonia, Chryse-Xanthe and Tharsis appear bright (7/10). An = extremely bright (9/10) haze is visible along the southern limb with an = equally bright cloud connecting to it over Argyre.=20 11:30 UT A drawing of Mars obtained through magenta (W30), blue = (W38A), and blue-green (W64) filters. The North Polar Cap (NPC) also = appears brilliant (10/10) at these wavelengths. A very bright to = extremely bright (8-9/10) cloud or haze is visible extending between the = Tempe-Achillis Pons region (also noted slightly less prominently in red = (W23A) light). An extremely bright (9/10) triangular-shaped cloud over = the Moab-Eden-Cydonia region of Mars. It's following tip (or "beak") = appears to connect to a very bright (8/10) strip of haze obscuring the = Chryse-Xanthe region which then connects to an extremely bright (9/10) = triangular-shaped cloud over Tharsis. An extremely bright (9/10) haze = was visible over the southern limb. Portions of Mare Acidalium and Mare = Erythraeum were partially visible (Violet (or blue) clearing at 1-2/3).
P=37.2385166 Toshihiko-Ikemura Japan
2001-02-13-DAPdata.TXT: No such file or directory elvis 108% more 2001-02-13-DAPdata.txt INFORMATION FOR MARS OBSERVATION, FEBRUARY 13th, 2001. D. A. Peach, King's Lynn, Norfolk, UK. 12" (30.5cm) Meade SCT. Magnifications: 352X. Filters: Unfiltered & W#21 Filter. Seeing initially fair-good (4-7) but deteriorated later very poor (1-2.) Tranparency excellent (5.0mag) Very light NW wind (0-5mph.) Moderate dew. Observation Time: 05:00 - 05:20 UT Mars CML: Ls: Diameter: 6.88" Comments: A period of fair-good seeing occured during this visual observation and allowed significant detail to be seen (the best view so far this apparition.) Firstly Hellas was very distinct, and appeared large unfiltered. It was also prominent in the W#21 filter. Syrtis Major/Deltoton Sinus appeared very prominent and dark. Mare Serpentis also dark. Sinus Sabeaus/Meridiani prominent. Utopia observed, though appeared fainter than other surface markings. CCD images incicated at a distinct cloud/haze over Aeria/Moab. NPC rather indistinct (but a white spot was still observed) as the North Pole begins to tilt away from Earth.
MARS IMAGES 14 Feb., 2000
D.C. Parker, Coral Gables, FL. Lynxx PC camera 16-in (41cm) F/6 NEWTONIAN
Eyepiece Projection @ f/55.2
Integration Times:
BLUE (Koheisha, 445nm peak central; BWHM 105nm) 7.20s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 3.00s
RED (RG610 - No IR Rejection) 0.78s
Images flat and dark corrected.
Seeing fair (5-6, Pickering) but high winds made imaging difficult.
Transparency variable (0-5m) due to frequent fast cumulus.
Wind ESE 1-13 kts, gusty. Altitude = 44 degrees. No dew. Red image composite.
Bright morning limb cloud. Chryse covered with clouds. Light cloud over Moab.
Some arctic clouds/hazes.
INFORMATION FOR MARS OBSERVATION, FEBRUARY 14th, 2001. D. A. Peach, King's Lynn, Norfolk, UK. 12" (30.5cm) Meade SCT. Magnifications: 406X. Filters: W#21, W#38A, Unfiltered. Seeing fair (4-6) Transparency excellent (5.0mag.) No wind. Moderate dew. Observation Time: 05:00 - 05:30 UT Mars CML: 278.1 Ls: 117.1 Diameter: 6.93" Comments: Again a good amount of detail was noted - the view was slightly superior to the previous observation on the 13th. W#21/Unfiltered Obs: All the major surface features appeared normal. Syrtis Major/Mare Serpentis/Deltoton Sinus/Utopia were all well observed. Hellas appeared prominent. NPC also seen. A bright Morning limb haze was again observed over Aeria/Moab/Arabia (unfiltered.) W#38A Filter. Hellas was very bright and large. Also a brilliant Morning Limb haze extending over Aeria/Moab/Arabia was prominent. NPC small and bright.
Mars on Feb.16, 2001 Ls = 118.2, De = +8.8, Dia = 7.1" Telescope : C11 (SC) D=280mm fl=2800mmCamera :Minolta DimageEx1500 Digital Camera taking lens removed CCD; ICX205AL (Sony Monochrome CCD) Effective F No.: 36 (XP24mm Eyepiece Projection) Filter: B390 (360nm - 500nm) Exposure :1/4 sec Camera :Minolta DimageEx1500 Digital Camera taking lens removed CCD; ICX205AL (Sony Monochrome CCD) Effective F No.: 36 (XP24mm Eyepiece Projection) Filter: SC68 (680nm - 1000nm) Exposure : 1/15 sec Analog gain: 6dB Obs.site : Mozuhonmachi Sakai-City Osaka Japan Observer:Masahito Niikawa Sakai Osaka JAPAN Email:zba03198@bird.zero.ad.jp Seeing = 4/10 - 5/10 Transparency = 3/6 Image Processing; Enhanced with the unsharp masking method. after composite of the original taking images. Caption: Solis Lacus and Tithonius are quite dark. , , also in Blue images. , , Thaumasia Foelix is bright in both Blue and IR band. , , , Equational Cloud Belt is prominent in Blue images ~ Especially cloud over Amazonis noted extremely bright. North Polar Cap is not seen. Colud over NP area noted in Blue images.
Toshihiko-Ikemura Japan
Finally, I took my very first image of Mars for this 2001 apparition.
The seeing was quite good for hi-resolution. At CM - 313 degrees with a red
filter Wr. #25, Syrtis Major is clearly seen while Hellas is quite dark. NPC
is difficult to see. But, there are numerous details around the North Polar
Region.
Observer:Masahito Niikawa Sakai Osaka JAPAN
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm
[Blue Images]
Camera :Minolta DimageEx1500 Digital Camera taking lens
removed CCD; ICX205AL (Sony Monochrome CCD)
Effective F No.: 36 (XP24mm
Eyepiece Projection) Filter: B390 (360nm - 500nm)
Exposure :1/4 sec
[Near IR Images]
Camera :Minolta DimageEx1500 Digital Camera taking lens
removed CCD; ICX205AL (Sony Monochrome CCD)
Effective F No.: 36 (XP24mm Eyepiece Projection)
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec Analog
gain: 6dB
Seeing = 2~3/10
Transparency = 4/6
Image Processing;
Enhanced with the unsharp masking method after composite of
the original taking images.
Caption:
Wind hard, bad conditon.
Coud over Tharsis is prominent.[B1], [B2], [B3]
What is bright area on terminator [R1}, {R2} ?
Dark in blue images [B1], [B2].
Some kind of yellow cloud ?
MARS IMAGES 27 Feb., 2000
D.C. Parker, Coral Gables, FL. PixCel 237 camera 16-in (41cm) F/6 NEWTONIAN
Eyepiece Projection @ f/62.2
Integration Times:
BLUE (Koheisha, 445nm peak central; BWHM 105nm) 1.20s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 0.50s
RED (RG610 - No IR Rejection) 0.12s
Images flat and dark corrected.
Seeing good (7, Pickering). Transparency variable (2-5m) due to occasional
clouds. No wind. Altitude = 43-44 degrees. Heavy dew.
Elysium, Hellas bright; morning limb cloud and Syrtis Blue Cloud. Hyblaeus
Extension remains prominent. Casius noted but weak.