Date (in UT): 1 August 2001 Time 20:37 h(UT) =20
CM: 38° d = -26°52'46" Alt. = 15°
Ls = 206° ? = 16.9" De = 7°
Seeing (0-10 scale): 2-3 Trans. (0 - 6m): 4 Wind: /
Telescope: Schmidt-Cassegrain 280 mm (f / 25)
Magnification: 311x and 330x
Filters: Schott: Wratten: W 64 blue/green, W 85 salmon, W 80a blue
Zeiss: VG 6 green.
Observer station: Observer:
Hattstatt / France TEICHERT Gérard
7°18' (E) / 48°01' (N) gteichert@hotmail.com
- The NPC (H) can be seen. (Filter blue/green W80a)
- A rather ring-like band surrounded the NPC(H) of the northern part of
MARE ACIDALIUM and MARE BOREUM.
- The Martian atmosphere is less transparent than usual!
- The surface indicates different albedo features
Robert Bunge, bbunge@ladyandtramp.com 2001 August 3, 2:02 UT Bowie, Maryland 20-inch f/6.4 270x Seeing 7 out of 10. Not all that warm, high clouds. The dust storm is still in full swing. Not too much to see. South polar cap is fuzzy without sharp edges. Some hints of preceding limb clouds in the south. Some faint dusty markings on surface that don't appear to match up to any known features.
Yan Chi Keung, Hong Kong. CCTVcamera(CCD) , recorded with Sony Digital 8 Handycam
TEC Mak-Cass 25cm f/20, 2x Barlow
UT 04 August 2001 1537-1540
Red : 25 images(stacked)
Green : 21 images(stacked)
Blue : 16 images(stacked)
Seeing : average (3-4/10)
Mars on Aug.04, 2001 Ls = 208.0, De = +6.5, Dia = 16.5" Camera:Minolta DimageEx1500 Digital Camera taking lens removed CCD:ICX205AL (Sony Monochrome CCD) Blue Image indicate [B] Filter: B390 (360nm - 500nm) Exposure :1/4 sec Effective F No.: 36 (XP24mm Eyepiece Projection) Near IR Image indicate [R] Filter: R64 (640nm - 1000nm) Exposure : 1/30 sec Effective F No.: 36 (XP24mm Eyepiece Projection) IR image indicate [IR] Filter: IR84 (840nm - 1000nm) Exposure :1/4 sec Effective F No.: 36 (XP24mm Eyepiece Projection) Seeing = 3/10 Transparency = 3/6 Image Processing; Enhanced with unsharp masking method. Caption: A dark area in Mare Cimmerium or Hesperia noted.
MARS IMAGES 5th August 2001
Tan Wei Leong, Singapore. SBIG ST7E CCD camera
weileong@singnet.com.sg
Celestron 11" SCT with Televue 2.5x powermate to f/23
Integration Times:
Red : 20 x 0.3 sec
Green : Average of Red and Blue
Blue : 12 x 1.00 sec
Seeing : Poor (3-4/10), Transparency : (2/10)
Altitude = about 58 degrees. No dew.
Mars on Aug.05, 2001 Ls = 208.6, De = +6.4, Dia = 16.4" Camera:Minolta DimageEx1500 Digital Camera taking lens removed CCD:ICX205AL (Sony Monochrome CCD) Blue Image indicate [B] Filter: B390 (360nm - 500nm) Exposure :1/4 sec Effective F No.: 36 (XP24mm Eyepiece Projection) IR image indicate [IR] Filter: IR84 (840nm - 1000nm) Exposure :1/4 sec Effective F No.: 36 (XP24mm Eyepiece Projection) Seeing = 2/10 Transparency = 3/6 Image Processing; Enhanced with unsharp masking method.
MARS IMAGES 6th August 2001
Tan Wei Leong, Singapore. SBIG ST7E CCD camera
weileong@singnet.com.sg
Celestron 11" SCT with Televue 2.5x powermate to f/23
Integration Times:
Red : 0.11 sec
Green : Average of Red and Blue
Blue : 0.4 sec
Seeing : Poor (3-4/10), Transparency : (6/10)
Altitude = about 60 degrees. No dew.
MARS IMAGES 8 AUGUST, 2001
D.C. Parker, Coral Gables, FL. Lynxx PC camera 16-in (41cm) F/6 NEWTONIAN
Eyepiece Projection @ f/36.0
Integration Times:
BLUE (Koheisha, 445nm peak central; BWHM 105nm) 1.80s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 0.58s
RED (RG610 - No IR Rejection) 0.12s
INFRARED (750-825nm) 1.80s
Images flat and dark corrected.
Seeing good (7-8, Pickering) Transparency good (5m) between fast cumulus clouds.
Wind NE 0-8 kts. Altitude = 37-32 degrees. No dew.
Dust persists, obscuring much of the S. hemisphere. Northern Acidalium M.
and the Nilokeras-Achillus Fons complex fairly well seen.
Note conspicuous N. polar cloud rotating with the planet. NPH disorganized.
Aurorae Sinus and the Tithonius complex faintly seen, distorted. Thaumasia
and Solis Lacus still largely covered by dust clouds. Bright PM limb arc and
south polar clouds.
MARS IMAGES 9 AUGUST, 2001
D.C. Parker, Coral Gables, FL. Lynxx PC camera 16-in (41cm) F/6 NEWTONIAN
Eyepiece Projection @ f/36.0
Integration Times:
BLUE (Koheisha, 445nm peak central; BWHM 105nm) 1.88s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 0.56s
RED (RG610 - No IR Rejection) 0.12s
INFRARED (750-825nm) 1.86s
Images flat and dark corrected.
Seeing fair (5-6, Pickering) Transparency good (5m) but frequent clouds.
Wind NE 0-10 kts., gusty. Altitude = 37 degrees. No dew.
Dust persists, obscuring much of the planet. Even Acidalium M. is largely obscured
except for its northern part.
Note conspicuous N. polar clouds rotating with the planet. NPH disorganized.
Bright evening limb arc and S. polar clouds.
Date (in UT): 11 August 2001 Time (UT) 20:14h
CM: 302° d = -26°57'30" Alt. = 14°
Ls = 212° phi = 15.6" De = 6°
Seeing (0-10 scale): 3-4 Trans. (0 - 6m): 4 Wind: slightly
Telescope: Schmidt-Cassegrain 280 mm (f / 25)
Magnification: 311x and 330x
Filters: Schott: Wratten: W 64 blue/green, W 85 salmon, W 80a blue
Zeiss: VG 6 green.
Observer station: Observer:
Hattstatt / France TEICHERT Gérard
7°18' (E) / 48°01' (N) gteichert@hotmail.com
Observing notes:
- The NPC is very clear (Zeiss filter VG6 green)
- No details can be seen on the SPC(H) (Zeiss filter VG6 green)
- The SPC (H) is whitish (blue filter W80a)
- The NPC can be seen (blue filter W80a)
- The Martian atmosphere is less transparent than usual!
- SYRTIS MAJOR and the northern areas can hardly be seen!
- (Filter W80a blue and filter W64 blue/green)
- SINUS SABAEUS could not be seen!
- A white cloud (1) is located east of the SPC(H)
Mars on Aug.11, 2001 Ls = 212.2, De = +5.7, Dia = 15.6" 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) Blue Images indicate [B] Filter: B390 (360nm - 500nm) Exposure :1/4 sec Effective F No.: 36 (XP24mm Eyepiece Projection) Near IR Images: indicate [R] Filter: R64 (640nm - 1000nm) Exposure : 1/30 sec Effective F No.: 36 (XP24mm Eyepiece Projection) IR image indicate [IR] Filter: IR84 (840nm - 1000nm) Exposure :1/4 sec Effective F No.: 36 (XP24mm Eyepiece Projection) Seeing = 4/10 Transparency = 2/6 Image Processing; Enhanced with unsharp masking method. Caption: Mare Cimmerium noted through the dust cloud.
Those days Syrtis Major was to cross central meridian of Mars at the time it was close to transiting from our European longitudes. As you will see on this selection of drawings I made recently, the northern part of S.Major is faintly visible, and I think I was also able to guess darker markings around the location of M.Tyrrhenum and M.Cimmerium, although there are brighter spots (dust clouds?) affecting their shapes and generally the contrasts are quite low (I would say that getting a new look at Saturn and Jupiter with 507 magnification and very good seeing (25.6-cm telescope) on the 11.2 of August, strongly reinforced the fact that mars features are very faint - Saturn belts look darker!). For the last week(s) the NPH seemed to have decreased or been swept away by some dust? Is it just a matter of unfavourable CML or that poles are getting affected by the dust storm? As a reminder, I try to put the full set of my drawings on my web page: http://wwwusr.obspm.fr/biver/planetnews.html
MARS IMAGES 12 AUGUST, 2001
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) 2.60-3.20s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 0.88s
RED (RG610 - No IR Rejection) 0.18s
Images flat and dark corrected.
Seeing poor (3-4, Pickering). Transparency fair (4m) with frequent clouds and haze.
Wind E 0-10 kts., gusty. Altitude = 37-35 degrees. No dew.
Dust persists, obscuring much of the planet. Acidalium M. is largely obscured.
NOTE: Meridiani S., Sabaeus S., Pandorae Fr., and Margaritifer S. all faintly
vivible beneath dust. Ghostly appearance!
Bright evening limb arc and S. polar clouds. SPC visible. NPH very dull,
broken.
Date (in UT): 12 August 2001 Time (UT) 20:12h
CM: 292° d = -26°57'59 " Alt. = 14°
Ls = 213° phi = 15.5" De = 5°
Seeing (0-10 scale): 2-3 Trans. (0 - 6m): 4 Wind: hazy
Telescope: Schmidt-Cassegrain 280 mm (f / 25)
Magnification: 311x and 330x
Filters: Schott: Wratten: W 64 blue/green, W 85 salmon, W 80a blue
Zeiss: VG 6 green.
Observer station: Observer:
Hattstatt / France TEICHERT Gérard
7°18' (E) / 48°01' (N) gteichert@hotmail.com
Observing notes:
- Low contrast in the areas!
- SYERYIS MAROR, SINUS SABAEUS and the northern areas were hardly seen
- MARE SERPENTIS was quite dark
- No details can be seen on the PANDORAE FRETUM
- The NPC is whitish (salmon filter W85)
- The SPC(H) appears smaller than before
- White limb haze along the eastern limb.
Mars on Aug.12, 2001 Ls = 212.8, De = +5.5, Dia = 15.5" 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) Blue Image indicate [B] Filter: B390 (360nm - 500nm) Exposure :1/4 sec Effective F No.: 36 (XP24mm Eyepiece Projection) Near IR Image indicate [R] Filter: R64 (640nm - 1000nm) Exposure : 1/30 sec Effective F No.: 36 (XP24mm Eyepiece Projection) IR image indicate [IR] Filter: IR84 (840nm - 1000nm) Exposure :1/2 sec Effective F No.: 36 (XP24mm Eyepiece Projection) Seeing = 4/10 Transparency = 2/6 Image Processing; Enhanced with unsharp masking method. Caption: It seems that the terminator in blue image - around Elysium or Cebrenia - become dark.
MARS IMAGES 12th August 2001
Tan Wei Leong, Singapore. SBIG ST7E CCD camera
Celestron 11" SCT with Televue 2.5x powermate to f/23
Integration Times:
Red : 0.11 sec
Green : Average of Red and Blue
Blue : 0.4 sec
Seeing : Good (7-8/10) Transparency (7/10)
Altitude = (37-62) degrees. No dew.
MARS IMAGES 13 AUGUST, 2001
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) 2.28s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 0.70s
RED (RG610 - No IR Rejection) 0.16s
INFRARED (750-825nm) 2.34s
Images flat and dark corrected.
Seeing fair (6-7, Pickering) Transparency variable (0-5m) between fast cumulus
clouds. Wind E-ENE 2-11 kts. Altitude = 37 degrees. No dew.
Dust persists, obscuring most of the disk. Bright PM limb arc and south polar
clouds. SPC visible. NP hood disorganized, weak in blue light.
The outline of Meridiani S. on C.M., but Sabaeus S.appears distorted except
in IR. Deucalionis wide. Anomalous albedo features.
Date (in UT): 13 August 2001 Time (UT) 19:57h
CM: 279° d = -26°58'28" Alt. = 14°
Ls = 214° phi = 15.4" De = 5°
Seeing (0-10 scale): 2-3 Trans. (0 - 6m): 3 Wind: hazy
Telescope: Schmidt-Cassegrain 280 mm (f / 25)
Magnification: 311x and 330x
Filters: Schott: Wratten: W 64 blue/green, W 85 salmon, W 80a blue
Zeiss: VG 6 green.
Observer station: Observer:
Hattstatt / France TEICHERT Gérard
7°18' (E) / 48°01' (N) gteichert@hotmail.com
Observing notes:
- The areas can hardly be seen!
- MARE CIMMERIUM is very dark!
- SYRTIS MAJOR can hardly be seen. Borders are fading.
- The NPC is now smaller
Mars on Aug.13, 2001 Ls = 213.4, De = +5.4, Dia = 15.4" 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) Blue Image indicate [B] Filter: B390 (360nm - 500nm) Exposure :1/4 sec Effective F No.: 36 (XP24mm Eyepiece Projection) Near IR Image indicate [R] Filter: R64 (640nm - 1000nm) Exposure : 1/30 sec Effective F No.: 36 (XP24mm Eyepiece Projection) IR image indicate [IR] Filter: IR84 (840nm - 1000nm) Exposure :1/2 sec Effective F No.: 36 (XP24mm Eyepiece Projection) Seeing = 4/10 Transparency = 2/6 Image Processing; Enhanced with unsharp masking method. Caption: Scandia, Panchaia, Cebrenia and Elysium noted dark.
Maurice Valimberti Melbourne, AUSTRALIA mauricev@ozemail.com.au 'Cookbook' 245 camera. 6" f/11 Refractor + 5x TeleVue Powermate (f/85) Seeing: fair to good Transparency: fair to good - fog IR filter 785nm peak schott WG295 (2mm), RG9 (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 0.2s V frame: multiple 0.30s & 0.40s IR frame: multiple 0.15s - no B images due to damaged filter - NPH weak & dispersed as seen visually & in 9:11UT & 9:30UT V images - Tharsis volcanoes prominent in images.
Tan Wei Leong, Singapore. SBIG ST7E CCD camera
Celestron 11" SCT with Televue 2.5x powermate to f/23
Integration Times:
Red : 12 x 0.11 sec
Green : Average of Red and Blue
Blue : 16 x 0.4 sec
Seeing : Very Poor (2-3/10) Transparency (4/10)
Altitude = about 60 degrees. No dew.
INSTRUMENTAL 180mm Astro-Physics EDT apochromatic refractor SBIG ST7e CCD camera 0.35 arcsec/pixel IMAGING Selection from 64 exposures, 0.11sec, I and R filters. Camera temp -24oC Dark & flat calibrated CONDITIONS Ambient temp=8C Seeing 6/10, Transparency 4/5. Mars's altitude 51o. MARS CM = 177o, Diam = 15.4", Ph = 87%, PA greatest defect of illum = 93o, PA Axis = 31.5o. South up. REMARKS Visually nothing was visible. IR and R images both show dark patches in the Mare Sirenum region and just south of Utopia, identification difficult. Note the very dark spot at about the Nix Olympica position. Tom Richards, Woodridge Observatory, Melbourne Australia tom@woodridgeobsy.org
Date (in UT): 14 August 2001 Time (UT) 20:08h
CM: 272° d = -26°58'55" Alt. = 14°
Ls = 214° phi = 15.2" De = 5°
Seeing (0-10 scale): 2-3 Trans. (0 - 6m): 3 Wind: hazy (+28° C
Telescope: Schmidt-Cassegrain 280 mm (f / 25)
Magnification: 311x and 330x
Filters: Schott: Wratten: W 64 blue/green, W 85 salmon, W 80a blue
Zeiss: VG 6 green.
Observer station: Observer:
Hattstatt / France TEICHERT Gérard
7°18' (E) / 48°01' (N) gteichert@hotmail.com
Observing notes:
14 August 2001 CM = 272° UT = 20:08h
- The NPC is very clear (blue filter W80a and blue/green filter W64)
- ELYSIUM clouds (1) on the north/eastern limb
- The northern part of SYRTIS MAJOR can be seen
- The southern areas, of SYRTIS MAJOR, could not be seen!!
- BOREOSYRTIS can hardly be seen
Mars on Aug.14, 2001 Ls = 214.1, De = +5.2, Dia = 15.3" 2001/08/14 12:54:49 (UT) CM = 166.7 15 frames composite 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) Filter: R64 (640nm - 1000nm) Exposure :1/3 sec Effective F No.: 36 (XP24mm Eyepiece Projection) Seeing = 4/10 Transparency = 1/6 Image Processing; Enhanced with unsharp masking method.
Date (in UT): 15 August 2001 Time (UT) 20:11h=20
CM: 264° d = -26°59'21" Alt. = 14°
Ls = 215° phi = 15.1" De = 5°
Seeing (0-10 scale): 2 Trans. (0 - 6m): 3 Wind: cloudy
Telescope: Schmidt-Cassegrain 280 mm (f / 25)
Magnification: 311x and 330x
Filters: Schott: Wratten: W 64 blue/green, W 85 salmon, W 80a blue
Zeiss: VG 6 green.
Observer station: Observer:
Hattstatt / France TEICHERT Gérard
7°18' (E) / 48°01' (N) gteichert@hotmail.com
Observing notes:
15 August 2001 CM = 264° UT = 20:11h
- The NPC can be seen (green filter VG6 and blue/green filter W64)
- The ELYSIUM clouds (1) are moving north!
- MARE CIMMERIUM is dark
- No details can be seen on the SYRTIS MAJOR!
- BOREOSYRTIS is dark
Mars on Aug.15, 2001
Ls = 214.7, De = +5.0, Dia = 15.2"
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)
Blue Image
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :1 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
Near IR Image
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
IR image
indicate [IR]
Filter: IR84 (840nm - 1000nm)
Exposure :1/2 sec
Effective F No.: 36 (XP24mm Eyepiece Projection)
Seeing = 4/10
Transparency = 1/6
Image Processing;
Enhanced with unsharp masking method.
Mars on Aug.23, 2001 Ls = 216.5, De = +4.5, Dia = 14.8" 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) Blue Images indicate [B] Filter: B390 (360nm - 500nm) Exposure :1/4 sec Effective F No.: 36 (XP24mm Eyepiece Projection) Near IR Images: indicate [R] Filter: R64 (640nm - 1000nm) Exposure : 1/60 sec Effective F No.: 36 (XP24mm Eyepiece Projection) IR image indicate [IR] Filter: IR84 (840nm - 1000nm) Exposure :1/4 sec Effective F No.: 36 (XP24mm Eyepiece Projection) Seeing = 2/10 Transparency = 4/6 Image Processing; Enhanced with unsharp masking method.
MARS IMAGES 19 AUGUST, 2001
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) 2.40s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 0.72s
RED (RG610 - No IR Rejection) 0.17s
INFRARED (750-825nm) 2.56s
Images flat and dark corrected.
Seeing good (7-8, Pickering) Transparency good (4.5-5m). Wind ENE 3-9 kts.
Altitude = 37 degrees. No dew.
Dust persists, however albedo features appear somewhat stronger. Syrtis Major,
Sabaeus S., Deltonon, and Tyrhennum M. are normal in outline.
Dust persists in Hellas, especially bright in infrared, although some
features on the floor of the Hellas basin are discernible.
Bright PM limb arc. NP hood disorganized, very weak in blue light.
CM : 304° dia. = 14.5" Telescope: Schmidt-Cassegrain 206 mm (f / 30 ) Seeing: (0-10 scale) 4-5 Trans.: (0 - 6m) 5 Wind: light, Filters: #21 Observer station: Observer: Dallas, Texas / USA Hall, George (hall@hex.net) 96° 44' (W) / 32° 49' (N) http://vip.hyperusa.com/~hall/george
Mars on Aug.23, 2001 Ls = 219.6, De = +3.6, Dia = 14.2" [R1] 2001/08/23 13:33:22 (UT) CM = 91.3 11 frames composite 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) Near IR Image indicate [R] Filter: R64 (640nm - 1000nm) Exposure : 1/8 sec Effective F No.: 36 (XP24mm Eyepiece Projection) Seeing = 3/10 Transparency = 1/6 Image Processing; Enhanced with unsharp masking method.
Date (in UT):24 August 2001 Time (UT) 19:27h
CM: 168° d = -27°01'42" Alt. = 14°
Ls = 220° phi = 14.1" De = 3°
Seeing (0-10 scale): 2-3 Trans. (0 - 6m): 3 Wind: hazy +27°C
Telescope: Schmidt-Cassegrain 280 mm (f / 25)
Magnification: 311x and 330x =20
Filters: Schott: Wratten: W 64 blue/green, W 85 salmon, W 80a blue
Zeiss: VG 6 green.
Observer station: Observer:
Hattstatt / France TEICHERT Gérard
7°18' (E) / 48°01' (N) gteichert@hotmail.com
Observing notes:
Salmon filter W85:
- The NPC(H) is whitish
- Limb haze can be seen
- White cloud (1) in SYRIA-SINAI
- MARE SIMERIUM and MARE SIRENUM can be seen
- ELYSIUM is dark
Green filter VG6
- Limb haze can hardly be seen
Blue/green filter:
- Limb haze can be seen
- White Spot (1) in the=20
- White cloud (1) in SYRIA-SINAI
MARS IMAGES 24 AUGUST, 2001
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) 2.40s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 0.72s
RED (RG610 - No IR Rejection) 0.16s
Images flat and dark corrected.
Seeing fair (5-6, Pickering) but very poor conditions due to poor transparency
0-5m), froquent clouds and strong gusty winds (NE 0-10 kts).
Altitude = 37 degrees. No dew.
Dust persists, however albedo features appear stronger. Tyrrhenum M., Hesperia,
Cimmerium M. visible. Hyblaeus Extension and Elysium faintly visible.
Bright PM limb arc extending over SPR. NP hood small.
Date (in UT): 25 August 2001 Time (UT) 19:23h
CM: 158° d = -27°01'42" Alt. = 14°
Ls = 221° phi = 14.0" De = 3°
Seeing (0-10 scale): 2.5 Trans. (0 - 6m): 3 Wind: hazy + moon
Telescope: Schmidt-Cassegrain 280 mm (f / 25)
Magnification: 311x and 330x =20
Filters: Schott: Wratten: W 64 blue/green, W 85 salmon, W 80a blue
Zeiss: VG 6 green.
Observer station: Observer:
Hattstatt / France TEICHERT Gérard
7°18' (E) / 48°01' (N) gteichert@hotmail.com
Observing notes:
The limb haze is difficult to see
The SYRIA-SINAI white cloud can hardly be seen
ELYSIUM clouds appears faded on the terminator
MARE SIRENUM is difficult to see
The NPC(H) is whitish
MARS IMAGES 29 AUGUST, 2001
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) 2.40s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 0.76s
RED (RG610 - No IR Rejection) 0.16s
Images flat and dark corrected.
Seeing fair (5-6, Pickering) but very poor conditions due to poor transparency
0-5m), froquent clouds and strong gusty winds (NE 2-11 kts).
Altitude = 37 degrees. No dew.
Dust persists, but albedo features appear stronger. Cimmerium and Sirenum
Maria visible. Much obscuration in the north, however. Elysium and environs
(Trivium, Phlegra, Propontis) not visible.
Bright PM limb arc extending over SPR. NP hood not visible.
Maurice Valimberti Melbourne, AUSTRALIA mauricev@ozemail.com.au 'Cookbook' 245 camera. 6" f/11 Refractor + 5x TeleVue Powermate (f/85) Seeing: poor to average Transparency: good - late fog IR filter 785nm peak schott WG295 (2mm), RG9 (3mm) V filter 520nm peak schott GG495 (2mm), BG39 (2mm), WG295 (1mm) R filter 600nm peak schott OG570 (3mm), KG3 (2mm) B filter 435nm peak schott GG385 (1mm), BG25 (1mm), BG39 (3mm) Integration times: B frame: multiple 0.7s & 0.8s R frame: multiple 0.2s V frame: multiple 0.3s & 0.4s IR frame: multiple 0.2s
MARS Image file 2001-08-29-TJR INSTRUMENTAL 180mm Astro-Physics EDT apochromatic refractor SBIG ST7e CCD camera 0.35 arcsec/pixel IMAGING 2001-Aug-29, 13:55 UT 19 of 64 exposures, 0.11sec, R filter. Camera temp -28oC Dark & flat calibrated CONDITIONS Ambient temp=9C Seeing 6/10, Transparency 3/5. Mars's altitude 57o. MARS DATA CM=10o, Diam=13.6", Ph=86%, PAdef=91o, PAaxis=29o. South up. REMARKS Visually nothing was visible. R image shows Mare Serpentis and (faintly) Sinus Sabaeus. Mare Acidalium is visible near the terminator. The broad shading of the terminator shading may be a processing artifact, or it may be what one would expect of a cloudy Mars. No sign of polar caps/hoods. Tom Richards, Woodridge Observatory, Melbourne Australia tom@woodridgeobsy.org
MARS Image file 2001-08-30-TJR INSTRUMENTAL 180mm Astro-Physics EDT apochromatic refractor SBIG ST7e CCD camera 0.35 arcsec/pixel IMAGING 2001-Aug-30, 11:33 UT 17 of 64 exposures, 0.11sec, R filter. Camera temp -28oC Dark & flat calibrated CONDITIONS Ambient temp=9C Seeing 5/10, Transparency 3/5. Mars's altitude 61o. MARS DATA CM=355o, Diam=13.5", Ph=86%, PAdef=91o, PAaxis=29o. South up. REMARKS Visually nothing was visible, even with red filter. The R image (compare image from previous day) shows Mare Serpentis and Sinus Sabaeus again. A dark spot in Sinus Sabaeus visible in the previous image is confirmed here. Hellas on the limb is bright. The broad shading of the terminator noted in the previous image occurs again. No sign of polar caps/hoods. Tom Richards, Woodridge Observatory, Melbourne Australia tom@woodridgeobsy.org
Maurice Valimberti Melbourne, AUSTRALIA mauricev@ozemail.com.au 'Cookbook' 245 camera. 6" f/11 Refractor + 5x TeleVue Powermate (f/85) Seeing: poor Transparency: good IR filter 785nm peak schott WG295 (2mm), RG9 (3mm) V filter 520nm peak schott GG495 (2mm), BG39 (2mm), WG295 (1mm) R filter 600nm peak schott OG570 (3mm), KG3 (2mm) B filter 435nm peak schott GG385 (1mm), BG25 (1mm), BG39 (3mm) Integration times: B frame: multiple 0.7s & 0.8s R frame: multiple 0.2s & 0.1s V frame: multiple 0.3s & 0.4s IR frame: multiple 0.2s
MARS IMAGES 31 AUGUST, 2001
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) 2.60s
GREEN (Koheisha, 540nm peak central; BWHM 75nm) 0.80s
RED (RG610 - No IR Rejection) 0.17s
Images flat and dark corrected.
Seeing only fair (5, Pickering) Transparency 4.5m. Wind S 0-7 kts.
Altitude = 37-35 degrees. No dew.
Dust persists, Cimmerium and Sirenum Maria visible. Possible dust clouds in
Electris. Note streak along northern border of Cimmerium, a feature that has
been seen for years, especially near quadrature. Olympus Mons near PM limb.
Propontis I visible nearing CM, but the north remains largely obscured.
Bright PM limb arc extending over SPR. Possible glimpse of SPC. NP hood
remains weak.
