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Old 24-09-2009, 12:04 PM
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Quark (Trevor)
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Jup Sept 23rd, From raging dust storms to Bonza seeing in 24 hrs

Hi All,

Well, just as the Phoenix rose from the ashes, my observatory emerged from the dust. I think our newest IIS contributor, Jonathon, over in New Zealand may have some real-estate from OZ arriving overhead shortly.

All day I had been keeping tabs on the approaching high pressure system and the animated satellite image. We still had wind and cloud cover but the satellite image showed that a vast amount of clear sky was on the way. It looked like the high pressure system may arrive through the night so I cleaned out the dust, three vacuum cleaners full, and wiped down every surface I could reach with a damp cloth that I kept wringing out in a bucket of water.

Had my Peltier cooling system running from 6pm CST and was imaging by 7:30 CST, the seeing was very sweet, semi Bonza and my only problem was trying to keep up with the rate that the temperature was dropping with my Peltier.

I would rate the seeing from 6 to 7 1/2 /10. This really was more of a reflection of my mirror temperature rather then the atmospheric seeing. The relative humidity was down around 30%, the wind had dropped off considerably, the cloud had dissipated and the stars were rock steady with no perceptible twinkle.

My aim on this night was the Wesley Impact Remnant, which crossed the CM at 8pm CST, very early in the night indeed.

I have posted 3 of my 5 RGB's along with the polar projections for those images, with the Wesley Impact remnant indicated.

This feature is extremely diluted now after nearly 3 months. I seem to recall this also being the case with SL9, that the scars took about 3 months to dissipate.

I have also posted an animated polar projection containing the polar projections of all 5 RGB's. I have marked in the position of the Wesley Impact Remnant.

http://www.iceinspace.com.au/uploads...pPolarAnim.gif

Image 1 has the GRS on the Eastern limb with three conspicuous red spots or barges following in the SEB. There are three prominent white ovals in the STeZ with whats left of the impact remnant above the most western of the three ovals in the South Polar Region.

Image 2 is the polar projection of image 1

Image 3 shows that there are five red spots or barges in the SEB and as is the case in all images, there is considerable activity in the NEB and also some very fine detail in the NTeZ.

Image 4 is the polar projection of image 3.

Image 5 is probably the best image of this session, there are many white ovals in the STeZ, clearly five red spots or barges in the SEB and well defined structure in the NEB, everywhere in this image there is detail to look at. Io is out to the west of the planet.

Image 6 is the polar projection of image 5.

All polar projections were done with Win JUPOS 8.0.13

Thanks for looking.
Regards
Trevor
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Last edited by Quark; 24-09-2009 at 12:07 PM. Reason: forgot to label Io
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Old 24-09-2009, 07:12 PM
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Lester
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Wow, what a turn around from the dust storm to getting these very reasonable images.

Good on ya Trevor.
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Old 25-09-2009, 12:47 PM
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Quark (Trevor)
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Quote:
Originally Posted by Lester View Post
Wow, what a turn around from the dust storm to getting these very reasonable images.

Good on ya Trevor.
Thanks Lester, but you wouldn't read about, chapter 2 of the same story has descended on us today. Right now the sky is sort of orange / brown, visibility is down to about 100 m and the wind has really picked up.

Looking at the predicted synoptic charts, there is currently a very nice high pressure system coming across from W.A. that looks like it will deliver some very nice conditions for all S.A. amateurs and out here in the N.S.W. far west by Sunday or Monday, so I reckon you will get to give your new DMK a bit of a work out.

Regards
Trevor
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Old 25-09-2009, 01:35 PM
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Kevnool (Kev)
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Great set of images and the animation Trev.

I hope your observatory is in lockdown mode again today.

Cheers Kev.
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Old 25-09-2009, 03:01 PM
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Quark (Trevor)
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Quote:
Originally Posted by Kevnool View Post
Great set of images and the animation Trev.

I hope your observatory is in lock-down mode again today.

Cheers Kev.
Yo Kev,

Locked down alright, think I have another big day planned for tomorrow with the vacuum cleaner. Its pretty crook though, when you have to vacuum the dust off of the vacuum cleaner first before you can use it.

Cheers
Trevor
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Old 26-09-2009, 06:19 AM
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Doodles23 (Dave Bleser)
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Care to trade some dust for water?

Terrific images! Your dust storm is big news even in Miami. Most of my Jupiter photography lately has occured while my clothes are soaking wet from head to toe with sweat. I would pay for a week of drought. I'd love to see some photos of the dust if you have any.
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Old 26-09-2009, 04:39 PM
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Quark (Trevor)
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Quote:
Originally Posted by Doodles23 View Post
Terrific images! Your dust storm is big news even in Miami. Most of my Jupiter photography lately has occured while my clothes are soaking wet from head to toe with sweat. I would pay for a week of drought. I'd love to see some photos of the dust if you have any.
Thanks Dave,

Had another dust storm yesterday that reduced visibility to about 100m.
I have photo's posted in a thread on the General Chat forum.
http://www.iceinspace.com.au/forum/s...ad.php?t=50557
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Old 28-09-2009, 07:21 PM
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Matt Wastell (Matt)
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Bonza!
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