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MahFL
Posted on: Jul 9 2015, 05:43 PM


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QUOTE (Lightning @ Jul 9 2015, 06:29 PM) *
Sorry for the naive question: currently, does NH sends back to earth those lossy-compressed JPG images, or raw images ?


It tells you on this page the current images are raw images. On July 20th, after the encounter a full set of thumbnails will be downloaded, then the full res pics according the the download plan.

http://pluto.jhuapl.edu/soc/Pluto-Encounter/
  Forum: New Horizons · Post Preview: #222590 · Replies: 729 · Views: 570051

MahFL
Posted on: Jul 9 2015, 04:28 PM


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QUOTE (pitcapuozzo @ Jul 9 2015, 05:03 PM) *
Hubble was right, after all!

[attachment=36649:eng.PNG]


Testament to the Hubble designers, people who repaired Hubble and the people who use Hubble in their research.
  Forum: New Horizons · Post Preview: #222582 · Replies: 729 · Views: 570051

MahFL
Posted on: Jul 9 2015, 06:53 AM


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QUOTE (Steve G @ Jul 9 2015, 02:49 AM) *
... This is looking more exotic than a dead old world.


Whoever said Pluto was a dead world ? We have know for decades it has a atmosphere that contracts during the long Plutonian winter, a dwarf planet with an active atmosphere like that must have a lot of dynamics occurring, all be it at much lower temps than on Earth of course.
  Forum: New Horizons · Post Preview: #222565 · Replies: 729 · Views: 570051

MahFL
Posted on: Jul 8 2015, 02:24 PM


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QUOTE (squirreltape @ Jul 8 2015, 02:15 PM) *
According to the New Horizons image archive page ( http://pluto.jhuapl.edu/soc/Pluto-Encounter/ ), the images will generally be up within 48hrs of them coming in to NH Science Operations Centre.


Dr. Stern mentioned an image release after 4pm, not sure which time zone, but the image taken on 7/7 has not been released, assuming it was taken ok. I don't think he meant the "whale" release as that's from images before 7/7.
  Forum: New Horizons · Post Preview: #222488 · Replies: 729 · Views: 570051

MahFL
Posted on: Jul 8 2015, 11:16 AM


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QUOTE (RotoSequence @ Jul 8 2015, 10:23 AM) *
I don't think I've ever seen that before. Why do they need the entire installation at Goldstone for New Horizons?


Might have something to do with the fact that the flyby is only 6 days away.
  Forum: New Horizons · Post Preview: #222478 · Replies: 729 · Views: 570051

MahFL
Posted on: Jul 6 2015, 12:56 PM


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QUOTE (alk3997 @ Jul 6 2015, 12:37 PM) *
...There might be some big surprises in the July 7th imagery since it will have been 4 days since the last image when those observations are taken...

Andy

In some ways that will be an unexpected treat.

  Forum: New Horizons · Post Preview: #222345 · Replies: 729 · Views: 570051

MahFL
Posted on: Jul 1 2015, 04:55 PM


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July 1 pics down :

http://pluto.jhuapl.edu/soc/Pluto-Encounter/
  Forum: New Horizons · Post Preview: #222064 · Replies: 729 · Views: 570051

MahFL
Posted on: Jun 23 2015, 01:10 PM


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Rosetta mission extended.

http://blogs.esa.int/rosetta/2015/06/23/ro...ssion-extended/
  Forum: Rosetta · Post Preview: #221674 · Replies: 390 · Views: 451387

MahFL
Posted on: Jun 19 2015, 08:12 PM


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"In the meantime, new commands have been uploaded to Rosetta to further adjust its trajectory and distance from the comet to improve the radio visibility between the two spacecraft, with the first sets of thruster burns having taken place this past Wednesday and the next set planned for Saturday morning. The goal is to bring Rosetta to about 177 km from the comet nucleus and keep it in a range of latitudes that maximise opportunities for lander communication."

rosetta-and-philae-in-contact-again
  Forum: Rosetta · Post Preview: #221507 · Replies: 172 · Views: 282258

MahFL
Posted on: Jun 18 2015, 01:07 PM


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QUOTE (pioneer @ Jun 18 2015, 12:27 PM) *
I'm not complaining, but I'm wondering what this mission will accomplish that the Galileo mission didn't. Both spacecraft have a magnetometer, dust detector, cameras and UV instruments. The Europa mission will also conduct flybys rather than orbit Europa just like Galileo. With the exception of the radar and more advanced versions of the instruments Galileo had, what do scientists hope to get that they couldn't get from Galileo?


More detail. The camera for instance will have up to 100 times more resolution. Also GALILEO only flew by Europa two times, I believe, 45 flyby's are planned for the new mission.
  Forum: Jupiter · Post Preview: #221446 · Replies: 107 · Views: 178715

MahFL
Posted on: Jun 17 2015, 10:56 PM


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I had the same problem in 2014. Likely a new version of Firefox made it go away.
  Forum: Forum Maintenance · Post Preview: #221427 · Replies: 17 · Views: 71032

MahFL
Posted on: Jun 14 2015, 10:11 PM


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I think they concluded no solid sample got into the oven, and it was gas that was analyzed.
  Forum: Rosetta · Post Preview: #221298 · Replies: 172 · Views: 282258

MahFL
Posted on: Jun 12 2015, 11:35 AM


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QUOTE (Paolo @ Jun 9 2015, 04:30 PM) *
from the New Horizons Facebook page, this is how NOT to report science....


It's a perfect way to represent speed for the general public.
  Forum: Chit Chat · Post Preview: #221213 · Replies: 549 · Views: 459727

MahFL
Posted on: Jun 9 2015, 11:43 AM


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QUOTE (elakdawalla @ Jun 8 2015, 06:56 PM) *
.... and they'll be able to update parameters close to encounter to accommodate better positional predictions...


My impression was the flyby sequence was loaded way back in 2009, and won't be changed, except to fill in gaps that were deliberately left to accommodate imaging new moons.
  Forum: New Horizons · Post Preview: #221091 · Replies: 519 · Views: 385522

MahFL
Posted on: Jun 9 2015, 11:39 AM


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QUOTE (ZLD @ Jun 7 2015, 10:33 PM) *
[attachment=36023:Highest_Resolution.png]

So this bit confused me. I've never come across this particular graphic with an error zone. Does it infer the remote possibility that we may capture nearly nothing should Pluto be in the upper right most portion? I'm not the least bit worried but that zone seems rather large.


No, it means the right edge of Pluto could be on the right of the ellipse, so you'd still get the data, the downside is the extra images take up space on the data recorder, but it's a trade off to make sure you get the data needed. Also it accommodates any slight errors in pointing by the spacecraft, but the spacecraft pointing has as far as I know been excellent, as you'd expect with such a good team.
  Forum: New Horizons · Post Preview: #221090 · Replies: 519 · Views: 385522

MahFL
Posted on: May 27 2015, 11:49 AM


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QUOTE (Paolo @ May 27 2015, 09:07 AM) *
the second paper is particularly interesting, as it shows that 67P appears to be a contact binary after all


Obviously these papers are not for the general public consumption, because I hardly understood any of it, and all those equations !
  Forum: Rosetta · Post Preview: #220700 · Replies: 81 · Views: 234700

MahFL
Posted on: May 12 2015, 12:27 PM


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The Mars sunset was just on The Weather Channel smile.gif.
  Forum: MSL · Post Preview: #220298 · Replies: 999 · Views: 868401

MahFL
Posted on: May 8 2015, 01:50 PM


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QUOTE (scalbers @ May 8 2015, 12:01 AM) *
I see this French news story that Rosetta will start to listen for Philae beginning tomorrow.


They already had one listening period, but nothing was heard, as expected. This next one might have a better chance as Philae warms up.
  Forum: Rosetta · Post Preview: #220139 · Replies: 1412 · Views: 1230866

MahFL
Posted on: May 1 2015, 11:30 AM


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Reminds me of Spirit in Eagle Crater smile.gif .
  Forum: MSL · Post Preview: #219963 · Replies: 999 · Views: 868401

MahFL
Posted on: Apr 27 2015, 10:49 AM


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QUOTE (pitcapuozzo @ Apr 26 2015, 09:56 AM) *
Is this the highest-resolution photo ever taken of Mercury or did I miss something?


Messenger is flying very low and very fast. It was not really designed to take images in this mode. The image is only 560 meters across. Messenger is taking a few last images before it crashes into Mercury, it has ran out of fuel.
  Forum: Messenger · Post Preview: #219823 · Replies: 527 · Views: 754958

MahFL
Posted on: Apr 21 2015, 12:58 PM


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New Horizons is now less than 100 million kilometers away from Pluto.

From http://www.yaohua2000.org website.

  Forum: New Horizons · Post Preview: #219693 · Replies: 519 · Views: 385522

MahFL
Posted on: Apr 17 2015, 05:15 PM


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That just gives me a headache unsure.gif
  Forum: Uranus and Neptune · Post Preview: #219603 · Replies: 6 · Views: 18811

MahFL
Posted on: Mar 3 2015, 03:10 PM


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QUOTE (Malmer @ Mar 3 2015, 09:51 AM) *
Temporary loss of star tracker only affects pointing right?

So there was really never any physical danger. Only risk of loss of science?


They won't put the craft on an orbit that collides with the comet, so loss of science would have been the problem if it went into safe mode.
  Forum: Rosetta · Post Preview: #218562 · Replies: 390 · Views: 451387

MahFL
Posted on: Feb 4 2015, 09:22 PM


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The LORRI image release for today is up at :

http://pluto.jhuapl.edu/News-Center/News-A...p?page=20150204


  Forum: New Horizons · Post Preview: #217682 · Replies: 519 · Views: 385522

MahFL
Posted on: Feb 4 2015, 02:29 PM


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Latest report from ESA seems to indicate they won't be doing a flyby to look for Philae, but going ahead with the close flyby at 6 km with the Sun directly behind them to get shadow free pics, as originally planned. Presumably they are going to wait to see if and when Philae will wake up, then try spot him.
  Forum: Rosetta · Post Preview: #217678 · Replies: 1412 · Views: 1230866

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