IPB

Welcome Guest ( Log In | Register )

6 Pages V   1 2 3 > »   
Reply to this topicStart new topic
30th Anniversary of the Voyager 1 Flyby of Jupiter
volcanopele
post Mar 5 2009, 08:20 PM
Post #1


Senior Member
****

Group: Moderator
Posts: 2864
Joined: 11-February 04
From: Tucson, AZ
Member No.: 23



Today marks the 30th anniversary of Voyager 1's flyby of Jupiter. On March 5, 1979, Voyager 1 flew through the Jupiter system providing a wealth of information of Jupiter, its magnetic field, and moons. Thanks to Voyager 1, the Galilean satellites became worlds with real geology and amazing vistas. Voyager 1 also revealed Jupiter's ring system and Io's volcanism for the first time.

I've written up a longer post about the encounter with Io on my blog, which also has an animation of the flyby: http://gishbar.blogspot.com/2009/03/30th-a...1-flyby-of.html


--------------------
&@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io
Go to the top of the page
 
+Quote Post
volcanopele
post Mar 5 2009, 10:14 PM
Post #2


Senior Member
****

Group: Moderator
Posts: 2864
Joined: 11-February 04
From: Tucson, AZ
Member No.: 23



There was an earlier thread on this subject a couple years back with a few great link about the discovery of active volcanism on Io:

http://www.unmannedspaceflight.com/index.p...c=3855&st=0
http://www.planetary.org/explore/topics/sp...ries_kelly.html
http://eric.ed.gov/ERICDocs/data/ericdocs2...80/1f/8f/7c.pdf


--------------------
&@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io
Go to the top of the page
 
+Quote Post
Ian R
post Mar 6 2009, 12:13 PM
Post #3


Member
***

Group: Members
Posts: 553
Joined: 18-July 05
From: Plymouth, UK
Member No.: 437



Here's the official JPL visulization of the Voyager 1 flyby; a contempory computer animation by Jim Blinn with satellite textures by Rick Sternbach (who later went on to work on Star Trek):

http://video.google.com/videoplay?docid=-8...45219&hl=en

If anyone has a better quality version of this vintage clip, I'd love to obtain a copy.

Ian.


--------------------
Go to the top of the page
 
+Quote Post
volcanopele
post Mar 8 2009, 10:29 AM
Post #4


Senior Member
****

Group: Moderator
Posts: 2864
Joined: 11-February 04
From: Tucson, AZ
Member No.: 23



In commemoration of this 30th anniversary of the discovery of volcanism on Io, I have finally finished the Voyager 1 southern hemisphere mosaic of Io that I started last year (though I lost the original project files sad.gif ). But that's okay, nothing a little Saturday project can't fix:

http://gishbar.blogspot.com/2009/03/voyage...ere-mosaic.html

Here is the URL to the full-size image: http://pirlwww.lpl.arizona.edu/%7Eperry/io...ole_mosaic2.png


--------------------
&@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io
Go to the top of the page
 
+Quote Post
volcanopele
post Mar 8 2009, 10:43 AM
Post #5


Senior Member
****

Group: Moderator
Posts: 2864
Joined: 11-February 04
From: Tucson, AZ
Member No.: 23



Of course, no sooner do I write "though I lost the original project files", that I find them in a dark, scary corner of my hard drive. Meh, this version is a lot better...and is ACTUALLY controlled to the USGS basemap. Which wasn't easy, some of the support for Voyager images in ISIS is broken. I think I had to perform some human sacrifices to the ISIS gods to get this to look nice...


--------------------
&@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io
Go to the top of the page
 
+Quote Post
Astro0
post Mar 8 2009, 10:53 AM
Post #6


Senior Member
****

Group: Admin
Posts: 2850
Joined: 21-December 05
From: Canberra, Australia
Member No.: 615



That's astounding and outstanding!

The visually smooth surface with these amazing mountains/volcanoes poking out, and then these ancient calderas and flow features.
What a place!

Do yourself a favour everyone and download volcanopele's full-size file and go exploring the surface of another world. smile.gif
Go to the top of the page
 
+Quote Post
volcanopele
post Mar 9 2009, 12:00 AM
Post #7


Senior Member
****

Group: Moderator
Posts: 2864
Joined: 11-February 04
From: Tucson, AZ
Member No.: 23



Thanks, astro0!

I've gone ahead and posted a version of that mosaic with the Masubi and Pele plumes added in there (required a bit of special processing in addition to the reprojecting of all the images in that mosaic, as well as my thoughts on this, the 30th anniversary of the discovery of volcanism on Io, on the blog:

http://gishbar.blogspot.com/2009/03/30th-a...scovery-of.html


--------------------
&@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io
Go to the top of the page
 
+Quote Post
climber
post Mar 9 2009, 02:04 AM
Post #8


Senior Member
****

Group: Members
Posts: 2627
Joined: 14-February 06
From: Very close to the Pyrénées Mountains (France)
Member No.: 682



Thanks Jason, it brings back old memories.
I first watched "your" IO flight by images and thought "well, I'm sure it's not what I did see at this time on tv"...and I was right when I sew pre fligh by Official images afterwards.
This was a the first truly Jupiter system exploration and IO has been the bigger surprise.
You know what? I had my first car driving course (I was 18) on the very same day Pionner 10 launched to Jupiter (March 3rd 1972) but unfortunately neither Pionner 10 nor 11 showed us such pictures of Jupiter system.
Thanks again for your thread...and we're going back again there, don't we?...I'll be over 70 by then rolleyes.gif


--------------------
Go to the top of the page
 
+Quote Post
lyford
post Mar 9 2009, 04:06 AM
Post #9


Senior Member
****

Group: Members
Posts: 1264
Joined: 18-December 04
From: San Diego, CA
Member No.: 124



This is truly wonderful, thank you.


--------------------
Lyford Rome
"Zis is not nuts, zis is super-nuts!" Mathematician Richard Courant on viewing an Orion test
Go to the top of the page
 
+Quote Post
volcanopele
post Mar 9 2009, 04:59 AM
Post #10


Senior Member
****

Group: Moderator
Posts: 2864
Joined: 11-February 04
From: Tucson, AZ
Member No.: 23



Wow, this is fun for me too, digging through these old images.

One thing I was shocked to find was incredible images of the Masubi flows field from Voyager 1 :-O Masubi is a semi-persistent plume active along Io's largest active flows around 45 South, 55 West. Now, I always thought our best images were in the 8-10 km range, but I was definitely mistaken. Just found a WAC image showing the Masubi flows field at ~4-5 km/pixel.


--------------------
&@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io
Go to the top of the page
 
+Quote Post
nprev
post Mar 9 2009, 05:09 AM
Post #11


Senior Member
****

Group: Moderator
Posts: 7092
Joined: 8-December 05
From: Los Angeles
Member No.: 602



The mosaic is beautiful work, Jason; thank you!!!

I'll never forget Mar 5, 1979. The first closeup Io images were just coming in on PBS as I was getting ready to leave for school (sophmore year of HS)...my jaw dropped as a picture formed line-by-line of a fluid outflow pattern of some sort, with Sagan exclaiming 'Oh, wow!' or words to that effect off-camera. Then I had to bolt to school, dammit.


--------------------
A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
Go to the top of the page
 
+Quote Post
volcanopele
post Mar 9 2009, 08:36 AM
Post #12


Senior Member
****

Group: Moderator
Posts: 2864
Joined: 11-February 04
From: Tucson, AZ
Member No.: 23



Wow, this actually only has a resolution of 2.02 km/pixel. This framelet shows the Masubi flow field and the plume deposit that surrounds the source region. It almost looks like that the main V-shaped flow is disconnected from the rest of Masubi Fluctus. Not sure if this is an artifact of the plume deposit cutting across it or not.
Attached thumbnail(s)
Attached Image
 


--------------------
&@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io
Go to the top of the page
 
+Quote Post
Juramike
post Mar 9 2009, 11:02 AM
Post #13


Senior Member
****

Group: Moderator
Posts: 2716
Joined: 10-November 06
From: Pasadena, CA
Member No.: 1345



Beautiful work!


--------------------
Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
Go to the top of the page
 
+Quote Post
Decepticon
post Mar 9 2009, 01:47 PM
Post #14


Senior Member
****

Group: Members
Posts: 1158
Joined: 25-November 04
Member No.: 114



QUOTE
The first closeup Io images were just coming in on PBS


Are these available somewhere online? My searches have come up empty.

I would love to see this.
Go to the top of the page
 
+Quote Post
tedstryk
post Mar 9 2009, 02:33 PM
Post #15


Interplanetary Dumpster Diver
****

Group: Moderator
Posts: 4241
Joined: 17-February 04
From: Powell, TN
Member No.: 33



I have been meaning to take a crack at trying to recover some of the underexposed and smeared frames. Jason, that mosaic is spectacular.


--------------------
Go to the top of the page
 
+Quote Post

6 Pages V   1 2 3 > » 
Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 26th October 2014 - 08:31 AM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is a project of the Planetary Society and is funded by donations from visitors and members. Help keep this forum up and running by contributing here.