MARS.
Date (in UT): 1 April 2001 Time (UT) o4:09 h
MC I: 189=B0 d =3D -22=B046'36" H =3D 19=B0
Telescope: Schmidt-Cassegrain 280 mm ( f / 25)
Seeing: (0-10 scale) 4
Trans.: (0 - 6m) 1 (daylight)
Wind: hazy
Magnification: 311x and 330x
Filters: Schott: Wratten: W 64 blue/green, W 85 salmon, W 80a blue
Observer station: Observer:
F-Hattstatt / France TEICHERT G=E9rard
7=B018' (E) / 48=B001' (N) 7, rue du Raisin=09
F-68420 Hattstatt / France
E-mail : gteichert@hotmail.com
MARS IMAGES 3 Apr., 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) 6.00s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 2.80s
RED (RG610 - No IR Rejection) 0.56s
Images flat and dark corrected.
Seeing poor (3, Pickering).Transparency good (5m). Wind very gusty at
5-14 kts ENE. Altitude = 41-40 degrees. No dew.
Despite poor seeing some red light images reveal details on Hellas'
floor: Alpheus and possibly Zea Lacus. Elysium orographic bright. Bright
morning limb cloud--non-rotating. Cerberus III detected on 09:18 image.
Nilosyrtis and Astusapes faintly seen. Hyblaeus Extension dark.
Robert Bunge Bowie, MD Very poor seeing with slight improvement during the session. 20-inch f/6.4 reflector, 270x. Clear, cold, 35 degrees F. Hellas very apparent. Moments of good seeing showed Mare Tyrrhenum and Mare Cim merium, although nothing to write home about. Clouds over Syrtis Major. Bright spot over Eridania. Syrtis Major clouds brighter and perhaps larger under #47 filter. Eridania brighter, more condensed and smaller with #47.
MARS IMAGES 5 Apr., 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) 6.60s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 2.80s
RED (RG610 - No IR Rejection) 0.60s
Images flat and dark corrected.
Seeing poor (3, Pickering).Transparency fair (4m). No wind.
Altitude = 39-40 degrees. Moderate dew.
Elysium orographic cloud bright but brighter in green than in blue.
Diffuse cloud bands in Zephyria, Aeolis, and Libya. Bright morning limb cloud
-- non-rotating. SPH broken. Trivium-Cerberus still weak.
MARS IMAGES 6 Apr., 2000
D.C. Parker, Coral Gables, FL. Lynxx PC camera 16-in (41cm) F/6 NEWTONIAN
Eyepiece Projection @ f/47.8
Integration Times:
BLUE (Koheisha, 445nm peak central; BWHM 105nm) 4.40s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 2.16s
RED (RG610 - No IR Rejection) 0.44s
Images flat and dark corrected.
Seeing very good (8, Pickering).Transparency variable (0-4m) due to frequent
clouds. Gusty NE wind, 2-10 kts. Altitude = 38-39 degrees. No dew.
Elysium orographic cloud bright but brighter in green than in blue.
Diffuse cloud bands in Zephyria. Bright morning limb cloud/haze. SPH broken.
Trivium-Cerberus still weak. Cerberus III detected. Hesperus very dark.
Mars 7 APR 2001 D.R. Klassen and B. Golish, Mauna Kea, HI Images taken at the 3 meter NASA Infrared Telescope Facility using the facility instrument NSFCAM, containing a LN2 cooled InSb 256x256 Infrared CCD array. The numbers below each image are the wavelength in micrometers (microns) at which the images were taken. The NSFCAM is equipped with a cooled Circular Variable Filter allowing image to be taken from 1-5 microns in wavelength at a spectral resolution, R, of about 100 (or bandwith/wavelength of about 0.01). The images were all displayed with the same stretch to show the relative brightness of the images in each band. The images at 1.56 and 2.25 microns are in the contiuum (i.e. there are not a lot of substance on Mars absorbing these wavelengths) and are the brightest. At 2.01 microns, the carbon-dioxide atmosphere of Mars is very absorbing and you can see the limbs are dimmed even more than the central disk. The three micron region is dominated by abosrption due to water of hydration (water bound to various surface minerals) causing the 3.00, 3.33, and 3.96 micron images to be fairly dim. Further effects on the brightness level are caused by the absorbing properties of water and carbon dioxide ices. Note that the north polar region, Hellas basin, and the evening (western or right-hand) limb are significantly darker. This is due to the polar ices in the first case and local water ice clouds in the latter two regions.
Mars on Apr.10, 2001 Observer:Masahito Niikawa Email:zba03198@bird.zero.ad.jp Obs.site : Mozuhonmachi Sakai-City Osaka Japan Telescope : C11 (SC) D=280mm fl=2800mm Camera :Minolta DimageEx1500 Digital Camera taking lens removed CCD; ICX205AL (Sony Monochrome CCD) Effective F No.: 36 (XP24mm Eyepiece Projection) [Near IR Images] Filter: R64 (640nm - 1000nm) Exposure : 1/15 sec Analog gain: 6dB [Blue Images] Filter: B390 (360nm - 500nm) Exposure :1/3 sec Seeing = 6/10 Transparency = 1/6 Image Processing; Enhanced with the unsharp masking method after composite of the original taking images. Caption: Seeing was fairly good, however, transparency changed frequently due to haze. The south polar hood is conspicuous. Chryse is bright in blue image as before. 2 lines of cirri are extended from Chryse toward Syrtis Major Tempe small bright spot noted in near IR image. North polar area is also a little bright in IR image.
MARS IMAGES 10 Apr., 2000
D.C. Parker, Coral Gables, FL. Lynxx PC camera 16-in (41cm) F/6 NEWTONIAN
Eyepiece Projection @ f/47.8
Integration Times:
BLUE (Koheisha, 445nm peak central; BWHM 105nm) 4.80-6.00s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 2.08s
RED (RG610 - No IR Rejection) 0.42s
Images flat and dark corrected.
Seeing very poor (2-3, Pickering).Transparency variable (0-5m) due to frequent
clouds. No wind. Altitude = 40-41 degrees. Slight dew.
Elysium bright but brighter in red than in blue. Olympus Mons orographic
bright on evening limb. Diffuse cloud bands in Zephyria. Bright morning
limb cloud/haze. SPH broken. Trivium-Cerberus still weak.
MARS IMAGES 12th April 2001
Tan Wei Leong, Singapore. SBIG ST7E CCD camera
Celestron 11" SCT with Televue 2x barlow to f/16
Integration Times:
Red 0.2s x 15 exposure
Blue 0.5s x
Green = Average of Red and Blue
Seeing : Poor (3-4/10).
Altitude = about 60 degrees. No dew.
High clouds present throughout exposure
MARS 12th April 2001, 19:03UT Maurice Valimberti Melbourne, AUSTRALIA 'Cookbook' 245 camera. 6" f/11 Refractor + 5x TeleVue Powermate. Seeing: good B filter 435nm peak schott GG385 (1mm), BG25 (1mm), BG39 (3mm) V filter 520nm peak schott GG495 (2mm), BG39 (2mm), WG295 (1mm) R filter 600nm peak schott OG570 (3mm), KG3 (2mm) Integration times: R frame: multiple 0.15s V frame: multiple 0.25s B frame: multiple 0.50s Integrated light: multiple 0.08s
Observer:Masahito Niikawa Email:zba03198@bird.zero.ad.jp Obs.site : Mozuhonmachi Sakai-City Osaka Japan Telescope : C11 (SC) D=280mm fl=2800mm Camera :Minolta DimageEx1500 Digital Camera taking lens removed CCD; ICX205AL (Sony Monochrome CCD) Analog gain: 6dB Effective F No.: 36 (XP24mm Eyepiece Projection) [Near IR Images] Filter: R64 (640nm - 1000nm) Exposure : 1/15 sec [Blue Images] Filter: B390 (360nm - 500nm) Exposure :1/3 sec Seeing = 7/10 Transparency = 2/6 Image Processing; Enhanced with the unsharp masking method after composite of the original taking images. Caption: Hallas noted complicated structure in near IR images. The north west of Hellas is dull. Equational cloud is bright in Blue images especelly proceeding side of Syrtis Major, and bend northward over Syrtis Major. Mare Serpentis noted dark spot [R2],[R3],[R4}. Aeria and Arabia are bright in blue images as well as near IR images
MARS 13th April 2001, 15:01UT Maurice Valimberti Melbourne, AUSTRALIA 'Cookbook' 245 camera. 6" f/11 Refractor + 5x TeleVue Powermate (also + 2x Meade barlow for integrated frame) Seeing: good B filter 435nm peak schott GG385 (1mm), BG25 (1mm), BG39 (3mm) V filter 520nm peak schott GG495 (2mm), BG39 (2mm), WG295 (1mm) R filter 600nm peak schott OG570 (3mm), KG3 (2mm) Integration times: R frame: multiple 0.15s V frame: multiple 0.35s B frame: multiple 1.50s Integrated light (f/110 approx.): multiple 0.35s
Email:zba03198@bird.zero.ad.jp Obs.site : Mozuhonmachi Sakai-City Osaka Japan Telescope : C11 (SC) D=280mm fl=2800mm Camera :Minolta DimageEx1500 Digital Camera taking lens removed CCD; ICX205AL (Sony Monochrome CCD) Analog gain: 6dB Effective F No.: 36 (XP24mm Eyepiece Projection) [Near IR Images] Filter: R64 (640nm - 1000nm) Exposure : 1/15 sec [Blue Images] Filter: B390 (360nm - 500nm) Exposure :1/3 sec Seeing = 7/10 Transparency = 2/6 Image Processing; Enhanced with the unsharp masking method after composite of the original taking images. Caption: In Hellas Portus Bucoleontis noted as a protrusion from Mare Ionium [R2]. Bright belt noted from Libya to south of Cerberus even in near IR images. Elysium is dusky [R1] Casius noted dark.
IMAGES 15 Apr., 2001
D.C. Parker, Coral Gables, FL. Lynxx PC camera 16-in (41cm) Meade SCT
Eyepiece Projection @ f/47.7 Paramount GT 1100S Mount
Integration Times:
BLUE (Koheisha, 445nm peak central; BWHM 105nm) 12.00s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 3.20s
RED (RG610 - No IR Rejection) 0.56s
Images flat and dark corrected.
Seeing poor (3, Pickering). Transparency poor (3-4m). No wind.
Altitude = 30-34 degrees. Moderate dew.
Evening cloud over Candor. Cloud over Olympus Mons near morning limb.
SPH bright in blue light. Bright morning limb haze.
Solis L. very dark; Tithonius complex, Noctis L., Phoenicis L.,
Sirenum M. noted.
April 16, 2001 8:20-9:00 UT CM=109-119 12.5" f6.8 RFL 360X Seeing 8 Orlando, Florida Observer: Myron E. Wasiuta De=1.0 S Ls=146 Dia.= 12.1" Integrated Light: SPH prominent, noticeably brighter on morning limb. Solis Lacus at sunset limb. Chryse and Xanthe appear bright. A thin white sliver seen at Nf limb-probably NPC or elements of NPH. Mare Sirenum prominent.
April 17, 2001 8:40 UT CM=105 12.5" f6.8 RFL 360X Seeing 6 Orlando, Florida Observer: Myron E. Wasiuta De=1.1 S Ls=147 Dia.= 12.3" W47: SPH prominent.. Solis Lacus weakly seen at sunset limb (weak violet clearing). Chryse and Xanthe appear light. Faint haze along sunrise limb.
April 17, 2001 8:50 UT CM=107 12.5" f6.8 RFL 360X Seeing 7-8 Orlando, Florida Observer: Myron E. Wasiuta De=1.1 S Ls=147 Dia.= 12.3" W30 (magenta) SPH prominent.. Solis Lacus prominent. Chryse bright near sunset limb. NPC or NPH just visible at Nf limb and surrounded by a thin, dark band.
April 17, 2001 9:30 UT CM=117 12.5" f6.8 RFL 360X Seeing 8-9 Orlando, Florida Observer: Myron E. Wasiuta De=1.1 S Ls=147 Dia.= 12.3" W30 (magenta) SPH prominent.. Solis Lacus prominent. Chryse bright near sunset limb. NPC or NPH just visible at Nf limb and surrounded by a thin, dark band.
April 19, 2001 7:00 UT CM=061 6.1" f7 AP refractor 420X Seeing 4 Spotsylvania, Virginia Observer: Myron E. Wasiuta De=1.3 S Ls=148 Dia.= 12.5" Integrated Light: SPH prominent, no discrtet detection of Argyre. Solis Lacus, Mare Acidalium, Nilokeras visible. Small patch of Nf limb appears misted.
7:40 UT CM=071 6.1" f7 AP refractor 420X Seeing 6-7 Spotsylvania, Virginia Observer: Myron E. Wasiuta De=1.3 S Ls=148 Dia.= 12.5" Integrated Light: SPH prominent, no discrtet detection of Argyre. Solis Lacus spectacular, with Thaumasia and Tithonius Lacus seen., Mare Acidalium, Nilokeras visible. Small patch of Nf limb appears misted.
April 19, 2001 8:30 UT CM=083 6.1" f7 AP refractor 420X Seeing 5 Spotsylvania, Virginia Observer: Myron E. Wasiuta De=1.3 S Ls=148 Dia.= 12.5" Integrated Light: SPH prominent and appears slightly displaced towards sunset limb., Solis Lacus spectacular, with Thaumasia and Tithonius Lacus seen., Mare Acidalium, Nilokeras visible. Small patch of Nf limb appears misted. Chryse beginning to brighten. 2001-04-19-mewc.txt: END
April 19, 2001 9:10 UT CM=093 6.1" f7 AP refractor 420X Seeing 4 Spotsylvania, Virginia Observer: Myron E. Wasiuta De=1.3 S Ls=148 Dia.= 12.5" Integrated Light: SPH prominent and appears slightly displaced towards sunset limb., Chryse light near sunset limb.
Email:zba03198@bird.zero.ad.jp Obs.site : Mozuhonmachi Sakai-City Osaka Japan Telescope : C11 (SC) D=280mm fl=2800mm Camera :Minolta DimageEx1500 Digital Camera taking lens removed CCD; ICX205AL (Sony Monochrome CCD) Analog gain: 6dB Effective F No.: 36 (XP24mm Eyepiece Projection) [Near IR Images] Filter: R64 (640nm - 1000nm) Exposure : 1/15 sec [Blue Images] Filter: B390 (360nm - 500nm) Exposure :1/3 sec Seeing = 7/10 Transparency = 2/6 Image Processing; Enhanced with the unsharp masking method after composite of the original taking images. Caption: Electris and Eridania are separated by Scamander. Trivium Charontis and Hyblaeus surround bright Elysium From Cebrenia to Aetheria is bright. Cloud belt extend from Elysium to Syrtis Major in blue image noted.
To look after the "possible" dust storm, Mare Siremun is completely
obscured (if I'm not mistaken) on the eastern side of the disk while Solis
Lacus is prominent along the western side. I compared it with a similar view
I had in 1986 and Mare Siremun was clearly visible at CM 90 degrees
longitude!
In violet light Wr.#47, the SPH is visible at large while the NPH is
quite small. Some white clouds along the east and southeast limb.
Did anybody see Mars at the same time?
Date (U.T.): April 24, 2001 Time (U.T.): 05:30 CM: 352.4 Ls: 150.6 De: -1.6 Ds: +11.9 Instrument: 8" f/7.5 Newtonian (IMPN) Mag.: 218x Filters: Wratten 23A, 64, 80A Seeing (1-10): 5-6 Transparency (1-6): 5 Notes: The North Polar Cap (NPC) was obscured by a brilliant (9/10) haze over the North Polar Region. Sabaeus Sinus and Meridiani Sinus were prominent (3/10) preceding and on the CM. Hellespontus was visible as a dark (3/10) border to a brilliant (9/10) Evening Limb Haze (ELH). Mare Australe was dark (3/10) north of a brilliant (9/10) South Polar Haze (or Hood). Noachis appeared bright (7/10) without internal detail. Vulcani Pelagus appeared as a dark (3/10) projection over Noachis from Mare Erythraeum. Mare Erythraeum appears dark (3/10) with a bright (7/10) "V-shaped" feature (Pyrrhae Regio?) within it. Margaritifer Sinus appears triangular and dark (3/10) following Meridiani Sinus. Chryse-Xanthe appears bright to very bright (7-8/10). Niliacus Lacus and Mare Acidalium (eastern (or preceding) halves) appeared dark (3/10) with their following (western) halves obscured by a brilliant Morning Limb Haze (MLH, 9/10). Arabia, Moab, Eden, and Cydonia appeared bright (7/10). Carlos E. Hernandez (A.L.P.O. Mars Section)
MARS IMAGES 24 Apr., 2001
D.C. Parker, Coral Gables, FL. Lynxx PC camera 16-in (41cm) Meade SCT
Eyepiece Projection @ f/49.3 Paramount GT 1100S Mount
Integration Times:
BLUE (Koheisha, 445nm peak central; BWHM 105nm) 5.20s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 1.84-2.08s
RED (RG610 - No IR Rejection) 0.38-0.41s
Images flat and dark corrected.
Seeing very good (8, Pickering). Transparency good (5.0m) with occasional
clouds. HOWEVER, wind very strong E & ESE 9-16 kts with gusts to 22 kts.
Altitude = 38-40 degrees. No dew.
SPH bright in blue light. Delicate cloud eastern Chryse to Eden.
Brilliant morning limb arc.
MARS IMAGES 26 Apr., 2001
D.C. Parker, Coral Gables, FL. Lynxx PC camera 16-in (41cm) Meade SCT
Eyepiece Projection @ f/49.3 Paramount GT 1100S Mount
Integration Times:
BLUE (Koheisha, 445nm peak central; BWHM 105nm) 6.80-8.80s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 2.32-2.48s
RED (RG610 - No IR Rejection) 0.44s
Images flat and dark corrected.
Seeing fair
ly good (6, Pickering). Transparency fair (4m) due to smoke from
wildfires. Wind SW 0-1 kts. Altitude = 40-38 degrees. Very heavy dew.
SPH broken. Moderately bright morning limb arc. Localized cloud in Candor,
rotating with planet. Wispy clouds in Chryse.
CM = 158.8 26 frames composite [B2] 2001/04/28 04:00:18 (JST) 2001/04/27 19:00:18 (UT) CM = 162.3 23 frames composite [B3] 2001/04/28 04:29:43 (JST) Telescope : C11 (SC) D=280mm fl=2800mm Camera :Minolta DimageEx1500 Digital Camera taking lens removed CCD; ICX205AL (Sony Monochrome CCD) Analog gain: 6dB Effective F No.: 36 (XP24mm Eyepiece Projection) [Near IR Images] Filter: R64 (640nm - 1000nm) Exposure : 1/15 sec [Blue Images] Filter: B390 (360nm - 500nm) Exposure :1/3 sec Seeing = 7/10 Transparency = 2/6 Image Processing; Enhanced with the unsharp masking method after composite of the original taking images. Caption: Electris is bright. Cloud over Nix Olympica. Aephyria cloud is conspicious. Pronpontis 1 noted very dark. Elysuim shined at the following limb.
Email:zba03198@bird.zero.ad.jp Obs.site : Mozuhonmachi Sakai-City Osaka Japan Telescope : C11 (SC) D=280mm fl=2800mm Camera :Minolta DimageEx1500 Digital Camera taking lens removed CCD; ICX205AL (Sony Monochrome CCD) Analog gain: 6dB Effective F No.: 36 (XP24mm Eyepiece Projection) [Near IR Images] Filter: R64 (640nm - 1000nm) Exposure : 1/15 sec [Blue Images] Filter: B390 (360nm - 500nm) Exposure :1/3 sec( [B5};1/2 sec) Seeing = 2/10 -> 5/10 Transparency = 2/6 Image Processing; Enhanced with the unsharp masking method after composite of the original taking images. Caption: At the beginning of the observation, seeing was terrible (2/10), It became moderate (5/10) before dawn. Parthontis is bright. Aonius Sinus and Mare Cimmerium is dark as before. Cloud movement on the blue images is very interesting. [B1]~[B5] The clouds over Amazonis are lifting in the Martian afternoon. The orographic clouds only remain.[B3],[B4],[B5]
MARS IMAGE : April 30 2001 11:03 UT
Ed Grafton, Houston Texas ST6 CCD 14 inch f/11 Celestron SCT
Eyepiece Projection @ f/60
Integration Times:
1 BLUE + IR rejection, .25 seconds, Edmunds filters
1 GREEN + IR rejection, .25 seconds, Edmunds filters
1 RED + IR rejection, .25 seconds, Edmunds filters
7 CLEAR + IR Rejection, .25 seconds, Edmunds filters
Seeing fair-good 6/10, transparency variable from 0/10 to 5/10. Wind 5MPH
from South. Low clouds blowing through. Ice fogs/clouds may be present in
the Edom area and at the termination of the Sinus Sabaeus extention.