Date: 23/04/2017 07:38:10
From: dv
ID: 1056012
Subject: Cassini's final pass of Titan
Round about now, Cassini is undertaking its final close pass of Titan, coming within 1000 km of the surface. It will take high resolution radar images of particular areas of interest on the surface, including the so called magic island that has changed shape over the last few years, and also attempt to measure the depth of some of the smaller lakes. The flyby will alter Cassini’s orbit, lowering its periapse, in preparation for its entry into Saturn’s atmosphere in September. Its orbital period from now on will be about a week.
https://www.nasa.gov/feature/jpl/cassini-heads-toward-final-close-encounter-with-titan
http://www.space.com/36542-cassini-flyby-titan-saturn-grand-finale.html
Date: 23/04/2017 09:53:53
From: mollwollfumble
ID: 1056072
Subject: re: Cassini's final pass of Titan
dv said:
Round about now, Cassini is undertaking its final close pass of Titan, coming within 1000 km of the surface. It will take high resolution radar images of particular areas of interest on the surface, including the so called magic island that has changed shape over the last few years, and also attempt to measure the depth of some of the smaller lakes. The flyby will alter Cassini’s orbit, lowering its periapse, in preparation for its entry into Saturn’s atmosphere in September. Its orbital period from now on will be about a week.
https://www.nasa.gov/feature/jpl/cassini-heads-toward-final-close-encounter-with-titan
http://www.space.com/36542-cassini-flyby-titan-saturn-grand-finale.html
> It will take high resolution radar images of particular areas of interest on the surface
Oh wonderful. I had hoped for this, but thought it was never going to happen, because Cassini was too far away. Can you imagine what the radar images through the thickest atmosphere in the solar system will reveal? Whatever it is, it will be both startling and well worth waiting for.
The radar will only not be anywhere near full coverage, just a thin strip of 3-D imagery, but sufficient.
Date: 23/04/2017 09:58:33
From: mollwollfumble
ID: 1056078
Subject: re: Cassini's final pass of Titan
Unless Cassini crashes into a hard object at hypervelocity of course.
Date: 23/04/2017 10:08:54
From: Bubblecar
ID: 1056085
Subject: re: Cassini's final pass of Titan
Date: 23/04/2017 11:22:18
From: mollwollfumble
ID: 1056117
Subject: re: Cassini's final pass of Titan
Today’s apod mentions Cassini’s final pass of Titan. The image by Cassini is of the Earth and it’s Moon! Seen through the rings of Saturn.
https://apod.nasa.gov/apod/ap170422.html
Date: 23/04/2017 11:33:03
From: Bubblecar
ID: 1056121
Subject: re: Cassini's final pass of Titan
mollwollfumble said:
Today’s apod mentions Cassini’s final pass of Titan. The image by Cassini is of the Earth and it’s Moon! Seen through the rings of Saturn.
https://apod.nasa.gov/apod/ap170422.html
Lovely image.
Date: 24/04/2017 05:21:54
From: mollwollfumble
ID: 1056415
Subject: re: Cassini's final pass of Titan
Is this it?
The image of Titan photographed during the final pass?
Date: 24/04/2017 05:23:52
From: Peak Warming Man
ID: 1056417
Subject: re: Cassini's final pass of Titan
mollwollfumble said:
Is this it?
The image of Titan photographed during the final pass?
Final pass not for several months, over.
Date: 25/04/2017 11:31:02
From: mollwollfumble
ID: 1057073
Subject: re: Cassini's final pass of Titan
Peak Warming Man said:
mollwollfumble said:
Is this it?
The image of Titan photographed during the final pass?
Final pass not for several months, over.
Final pass of Titan was April 21
Final pass of Saturn is September 15
Date: 25/04/2017 11:48:05
From: mollwollfumble
ID: 1057078
Subject: re: Cassini's final pass of Titan
Cassini to taste Saturns rings
It is effectively going to be weighing the rings,” Coates said. “It has very close fly-bys of these rings. There is going to be a change in orbit from just outside the ring to just inside.
The on-board particle detectors will sample icy ring particles being funnelled into the atmosphere from the planet and it will also make detailed maps of Saturn’s gravity and magnetic fields.
The spacecraft will be travelling at about 70,000mph and will not pass through the rings as there is a risk of damage from the rings’ particles.
Date: 28/04/2017 15:09:07
From: dv
ID: 1058338
Subject: re: Cassini's final pass of Titan
Farewell, Titan.
It’s likely to be another 15 years or so before we get any more data from Titan.
Date: 29/04/2017 04:27:06
From: dv
ID: 1058509
Subject: re: Cassini's final pass of Titan
Unprocessed image of Saturn’s giant hurricane. Field of View here is about 5000 km.
Closer image of the hurricane, showing the … uh … things …
Date: 29/04/2017 04:53:01
From: mollwollfumble
ID: 1058515
Subject: re: Cassini's final pass of Titan
dv said:
Unprocessed image of Saturn’s giant hurricane. Field of View here is about 5000 km.
https://img.purch.com/h/1400/aHR0cDovL3d3dy5zcGFjZS5jb20vaW1hZ2VzL2kvMDAwLzA2NS8yNzYvb3JpZ2luYWwvY2Fzc2luaS1naWFudC1odXJyaWNhbmUtc2F0dXJuLmpwZz8xNDkzMzA5NTI0
Closer image of the hurricane, showing the … uh … things …
https://img.purch.com/h/1400/aHR0cDovL3d3dy5zcGFjZS5jb20vaW1hZ2VzL2kvMDAwLzA2NS8yNzcvb3JpZ2luYWwvY2Fzc2luaS1zYXR1cm4tY2xvdWQtdG9wcy5qcGc/MTQ5MzMwOTY2OQ==
Whoa! That’s spectacular, and peculiar. White specks like Jupiter’s cloud tops? Thunderstorms?
Date: 29/04/2017 04:55:14
From: Cymek
ID: 1058517
Subject: re: Cassini's final pass of Titan
mollwollfumble said:
dv said:
Unprocessed image of Saturn’s giant hurricane. Field of View here is about 5000 km.
https://img.purch.com/h/1400/aHR0cDovL3d3dy5zcGFjZS5jb20vaW1hZ2VzL2kvMDAwLzA2NS8yNzYvb3JpZ2luYWwvY2Fzc2luaS1naWFudC1odXJyaWNhbmUtc2F0dXJuLmpwZz8xNDkzMzA5NTI0
Closer image of the hurricane, showing the … uh … things …
https://img.purch.com/h/1400/aHR0cDovL3d3dy5zcGFjZS5jb20vaW1hZ2VzL2kvMDAwLzA2NS8yNzcvb3JpZ2luYWwvY2Fzc2luaS1zYXR1cm4tY2xvdWQtdG9wcy5qcGc/MTQ5MzMwOTY2OQ==
Whoa! That’s spectacular, and peculiar. White specks like Jupiter’s cloud tops? Thunderstorms?
Lifeforms living in the hurricane would be exciting
Date: 29/04/2017 04:59:29
From: mollwollfumble
ID: 1058518
Subject: re: Cassini's final pass of Titan
Cymek said:
mollwollfumble said:
dv said:
Unprocessed image of Saturn’s giant hurricane. Field of View here is about 5000 km.
https://img.purch.com/h/1400/aHR0cDovL3d3dy5zcGFjZS5jb20vaW1hZ2VzL2kvMDAwLzA2NS8yNzYvb3JpZ2luYWwvY2Fzc2luaS1naWFudC1odXJyaWNhbmUtc2F0dXJuLmpwZz8xNDkzMzA5NTI0
Closer image of the hurricane, showing the … uh … things …
https://img.purch.com/h/1400/aHR0cDovL3d3dy5zcGFjZS5jb20vaW1hZ2VzL2kvMDAwLzA2NS8yNzcvb3JpZ2luYWwvY2Fzc2luaS1zYXR1cm4tY2xvdWQtdG9wcy5qcGc/MTQ5MzMwOTY2OQ==
Whoa! That’s spectacular, and peculiar. White specks like Jupiter’s cloud tops? Thunderstorms?
Lifeforms living in the hurricane would be exciting
I didn’t dare say that. Intelligent lifeforms living in Saturn’s atmosphere made an appearance in Doc Smith’s short story – what was it’s name again – Spacehounds of IPC (1930).
Date: 29/04/2017 05:04:27
From: mollwollfumble
ID: 1058519
Subject: re: Cassini's final pass of Titan
Even closer view
Date: 29/04/2017 05:11:58
From: mollwollfumble
ID: 1058521
Subject: re: Cassini's final pass of Titan
What the heck is this? Also taken by Cassini on 26 Apr 2017, but supposedly pointing towards moon Pallene.
And this one, supposedly pointing towards moon Methone.
Date: 29/04/2017 05:22:28
From: SCIENCE
ID: 1058523
Subject: re: Cassini's final pass of Titan
it’s Steve
http://www.abc.net.au/news/2017-04-24/new-light-phenomenon-called-steve-by-aurora-watchers/8466234
Date: 29/04/2017 05:27:43
From: mollwollfumble
ID: 1058526
Subject: re: Cassini's final pass of Titan
SCIENCE said:
it’s Steve
http://www.abc.net.au/news/2017-04-24/new-light-phenomenon-called-steve-by-aurora-watchers/8466234
No. And you’re a bit late. We discussed Steve four days ago in https://tokyo3.org/forums/holiday/?main=https%3A//tokyo3.org/forums/holiday/topics/8645/
Date: 29/04/2017 05:37:09
From: dv
ID: 1058528
Subject: re: Cassini's final pass of Titan
The decision to end Cassini’s life with Saturn entry was made to prevent biological contamination of Titan or other moons that could harbour life.
http://www.spacesafetymagazine.com/space-exploration/extraterrestrial-life/cassini-huygens-preventing-biological-contamination/
“Although the possibility that Saturn might host life is unlikely, the spacecraft will not risk even that unlikely scenario; Cassini will disintegrate and be scattered into the giant gaseous planet’s atmosphere, preventing possible contamination from Earth.”
Date: 29/04/2017 05:38:10
From: dv
ID: 1058529
Subject: re: Cassini's final pass of Titan
Pretty sure that’s a spaceghost
Date: 29/04/2017 05:39:10
From: SCIENCE
ID: 1058530
Subject: re: Cassini's final pass of Titan
that seems to be a different thread
Date: 29/04/2017 05:40:43
From: SCIENCE
ID: 1058531
Subject: re: Cassini's final pass of Titan
dv said:
“Although the possibility that Saturn might host life is unlikely, the spacecraft will not risk even that unlikely scenario; Cassini will disintegrate and be scattered into the giant gaseous planet’s atmosphere, preventing possible contamination from Earth.”
‘e’s referring to this stuff
http://www.nature.com/news/high-flying-bacteria-spark-interest-in-possible-climate-effects-1.12310
Date: 29/04/2017 06:11:06
From: Peak Warming Man
ID: 1058537
Subject: re: Cassini's final pass of Titan
So is Cassini safely inside the rings and doing it’s final 22 laps?
Date: 29/04/2017 06:14:35
From: Bubblecar
ID: 1058540
Subject: re: Cassini's final pass of Titan
Peak Warming Man said:
So is Cassini safely inside the rings and doing it’s final 22 laps?
Yes but it’s taking over-excited photos of blurs.
Date: 29/04/2017 06:19:55
From: Peak Warming Man
ID: 1058548
Subject: re: Cassini's final pass of Titan
Bubblecar said:
Peak Warming Man said:
So is Cassini safely inside the rings and doing it’s final 22 laps?
Yes but it’s taking over-excited photos of blurs.
I’ll see what I can do.