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Pioneer 11 Saturn, Reprocessed Images
4th rock from th...
post Apr 10 2006, 07:03 PM
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Here are some reprocessed P11 images of Saturn. I've used parts of different images to complete the missing ring edges on some images.

The image for 1979-09-01 is a mosaic of several images obtained that day, and suffers from changes in the spacecraft viewing angle.

I've made an effort to colect all the images and information avaliable on the net, but not much is avaliable with correct dates and satellite identification and I might have got some things wrong smile.gif

When I have the time, I'll post some more Pioneer reprocessed images biggrin.gif


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Ian R
post Apr 10 2006, 09:13 PM
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Great work! biggrin.gif

This has to be my favourite view of Saturn taken by Pioneer 11. Visible for the very first time are the four inner ringlets of the C-ring:

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Ian.


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tedstryk
post Apr 10 2006, 09:17 PM
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Looking good!


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4th rock from th...
post Apr 10 2006, 10:14 PM
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QUOTE (Ian R @ Apr 10 2006, 10:13 PM) *
Great work! biggrin.gif

This has to be my favourite view of Saturn taken by Pioneer 11. Visible for the very first time are the four inner ringlets of the C-ring:


Ian.


Well, that image is part of the last mosaic wink.gif
Here's my processed version:

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tedstryk
post Apr 11 2006, 01:45 AM
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Here is a similar view, from part of frame F6, which is from a combination of scanned data and the digital fragment we worked on from a portion of this image, used to enhance the profile of the rings.




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J.J.
post Apr 26 2006, 05:36 AM
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Great work, all. smile.gif


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GregM
post May 5 2006, 03:11 AM
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Guest_PhilCo126_*
post May 6 2006, 08:21 PM
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Great to see some of those 30-year old images being 'reprocessed' ohmy.gif
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tedstryk
post May 6 2006, 10:27 PM
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QUOTE (GregM @ May 5 2006, 03:11 AM) *
Been monkeying around with bad internet images for a few years, but never really happy with the results. Sure wish I could get my hands on original digital data, or at least full res uncompressed scans of original hardcopies.


That is a superb result. Based on the experience with the digital fragments we have found, I don't know that the improvement will be all that great, though it would still be nice to have.


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4th rock from th...
post May 7 2006, 11:21 AM
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QUOTE (GregM @ May 5 2006, 04:11 AM) *
Been monkeying around with bad internet images for a few years, but never really happy with the results. Sure wish I could get my hands on original digital data, or at least full res uncompressed scans of original hardcopies.


If your search the Internet you can find several versions of the same image. By averaging those together you can get rid of most of the scanning and compression artefacts ;-) Not as "clean" as digital uncompressed data but better than nothing smile.gif


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Bob Shaw
post May 7 2006, 04:46 PM
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QUOTE (GregM @ May 5 2006, 04:11 AM) *
Been monkeying around with bad internet images for a few years, but never really happy with the results. Sure wish I could get my hands on original digital data, or at least full res uncompressed scans of original hardcopies.


I just wish that Pioneer 11's trajectory had allowed images of the sunlit side of the rings - that'd have made a big difference aesthetically, and perhaps allowed an early glimpse of the spokes...

Bob Shaw


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tedstryk
post Feb 16 2007, 03:51 AM
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I have updated my site with a Pioneer 11 page.

It is still a work in progress.

Ted



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JRehling
post Feb 16 2007, 04:16 AM
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QUOTE (tedstryk @ Feb 15 2007, 07:51 PM) *
I have updated my site with a Pioneer 11 page.

It is still a work in progress.

Ted


Awesome! Thanks for this.

As I've mentioned more times than I need to, I have a real nostalgia for this mission. I remember a worse version of these images on the cover of Newsweek, and the ghostly nature of these images, made stranger for the reverse lighting effect on the rings, gave me a sense that no mission since has of the probe that made the trip being in a strange faraway place. It also finished the initial reconnaisance of the planets known to the ancients. Pardon me before I get choked up...
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nprev
post Feb 16 2007, 04:41 AM
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Good memories of just before 1 Sept 1979, Ted...thanks! smile.gif

I remember Titan's rather striking coloration in these images, but can't recall if anyone at the time was wondering aloud whether its atmosphere was as substantial as we now know it to be. Sagan's 1973(?) paper "The Atmosphere of Titan" did explore that possibility, among others. Prevailing opinion then seemed to favor about 20 mb surface pressure...anybody remember anything different?


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dvandorn
post Feb 16 2007, 05:46 AM
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I also remember Pioneer 11's Saturn flyby quite well, and I have to admit that my reaction was more one of disappointment. I had really looked forward to seeing the first images of Saturn's rings "in all their glory" from a space probe, and when I saw them, they were poor-resolution, dim, shadow-side images that made me feel I had seen better versions of Saturn from Earth-based telescopic observations.

I didn't see what I *really* wanted to see until the Voyagers arrived several years later. Voyager is still the great wave of enlightenment of the outer solar system, for me.

-the other Doug


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