IPB

Welcome Guest ( Log In | Register )

21 Pages V  « < 18 19 20 21 >  
Reply to this topicStart new topic
MSL Post First Drive - Intermission, Start of Drive to Glenelg, Intermission between CAP 1B and 2 - Sols 17 through 29
climber
post Sep 12 2012, 05:23 PM
Post #286


Senior Member
****

Group: Members
Posts: 2562
Joined: 14-February 06
From: Very close to the Pyrénées Mountains (France)
Member No.: 682



Would be nice, eh? I was just making a comment we enjoy here saying they've (again) discovered water on Mars. Frankly I don't expect a big announcement so early in the mission unless we all missed something BIG here at UNMSF.


--------------------
Go to the top of the page
 
+Quote Post
fredk
post Sep 12 2012, 05:48 PM
Post #287


Senior Member
****

Group: Members
Posts: 2741
Joined: 17-January 05
Member No.: 152



I'd say definitely engineering status report. (But then I've just seen the new press release images...)
Go to the top of the page
 
+Quote Post
charleski
post Sep 12 2012, 06:34 PM
Post #288


Junior Member
**

Group: Members
Posts: 26
Joined: 7-August 12
Member No.: 6485



Leo Enright just asked the question that's been in my mind for a week now. smile.gif

I think it's going to be a while before we get proper scientific interpretations coming out, even for mundane stuff - obviously everything will need to be thoroughly checked before being announced. The first set of really interesting stuff is waiting at Glenelg, anyway.

[Edit]: Also, compare the picture of the penny, with the ones shown here (bigger image). That penny was nice and shiny when it left Earth, has it picked up a layer of fine dust or has a month of exposure been enough to erode the surface?

Actually - looking at the other recent MAHLI images shows dust packing the gap between the penny and the target surround, so it's probably just a layer of dust, though I wonder how abrasive this stuff is.
Go to the top of the page
 
+Quote Post
jmknapp
post Sep 12 2012, 07:05 PM
Post #289


Senior Member
****

Group: Members
Posts: 1061
Joined: 9-February 04
From: Columbus OH USA
Member No.: 13



Enright does it again--Joy Crisp was pretty coy about it, saying that science team is "actively debating what they're seeing in those textures, uh, they are excited about what they've seen, but we're not ready yet to say what it means." Another questioner tried to press for "some of the ideas that the science team is kicking around about what they're seeing there." Crisp replied again saying they're not ready to talk about it yet, "but probably next week we will, so stay tuned" and "we don't want to stick our necks out yet."

Leo also asked about another issue that I wondered about--that since MEX is over the horizon for hours sometimes, do they plan to take advantage of its communications capability. The answer from Jennifer Trosper was basically that there are currently no plans use MEX as a data link, & that one MRO pass alone recently resulted in 500MB of data.


--------------------
Go to the top of the page
 
+Quote Post
mcaplinger
post Sep 12 2012, 07:11 PM
Post #290


Senior Member
****

Group: Members
Posts: 1043
Joined: 13-September 05
Member No.: 497



QUOTE (jmknapp @ Sep 12 2012, 12:05 PM) *
since MEX is over the horizon for hours sometimes, do they plan to take advantage of its communications capability.

It may be visible but it's far away and inverse-square law makes the data rate uselessly low, I'm guessing.


--------------------
Disclaimer: This post is based on public information only. Any opinions are my own.
Go to the top of the page
 
+Quote Post
elakdawalla
post Sep 12 2012, 09:08 PM
Post #291


Bloggette par Excellence
****

Group: Admin
Posts: 3968
Joined: 4-August 05
From: Pasadena, CA, USA, Earth
Member No.: 454



I had asked Edgett if the red stuff surrounding the penny was dust and he said not. "The red stuff -- as with the red inside the MAHLI lens in those Mastcam images -- that is the RTV adhesive."


--------------------
My blog - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
Go to the top of the page
 
+Quote Post
charleski
post Sep 12 2012, 10:17 PM
Post #292


Junior Member
**

Group: Members
Posts: 26
Joined: 7-August 12
Member No.: 6485



QUOTE (elakdawalla @ Sep 12 2012, 10:08 PM) *
I had asked Edgett if the red stuff surrounding the penny was dust and he said not. "The red stuff -- as with the red inside the MAHLI lens in those Mastcam images -- that is the RTV adhesive."


That would make sense, and I found a larger image that clearly shows the adhesive in the pre-flight pictures. It's definitely lost its shininess, though, and there appears to be a void from 8-12o'clock that's certainly not there pre-flight. The uneven distribution is why I jumped to the conclusion that it was fine, wind-blown dust, but now I wonder whether the adhesive has been scoured away. Going by the shadows the light is coming from approximately 10 o'clock, so maybe this is just a trick of the light?

[Edit]Actually, after looking at it close-up and comparing with this I think that, yes, the appearance of the surround is mostly just a trick of the light. But there is an area just to the right of the 'S' where there appears to have been a small void in the adhesive pre-flight and the roof of the void has now been removed.
Attached thumbnail(s)
Attached Image
 
Go to the top of the page
 
+Quote Post
EdTruthan
post Sep 13 2012, 07:56 PM
Post #293


Member
***

Group: Members
Posts: 139
Joined: 7-August 12
From: Garberville, CA
Member No.: 6500



Anaglyph from photos taken during this CAP so I figured they ought to go in this thread. I used the three partial MC100 BW frames from Sol 25 (left eye), and corresponding color frames from Sol 19 (right eye), so pretty decent baseline separation. I separated them a bit more than usual as it seems the varying depths of field are easier on the eye once you're locked on in stereo. The soft looking layers in the rounded fish hook shaped hollow in the foreground below the hard caprock are pretty interesting. Though the thumbnail looks pink, once in glasses it's quite natural looking...

Attached Image


--------------------
"We shall not cease from exploration, and the end of all our exploring will be to arrive where we started and know the place for the first time." -T.S. Eliot
Go to the top of the page
 
+Quote Post
MarkL
post Sep 13 2012, 08:14 PM
Post #294


Member
***

Group: Members
Posts: 165
Joined: 18-July 06
Member No.: 981



Anyone know if there is a place to find the archived video press briefings? I missed yesterday's. Surprise surprise, I was working.
Go to the top of the page
 
+Quote Post
maschnitz
post Sep 13 2012, 08:29 PM
Post #295


Junior Member
**

Group: Members
Posts: 60
Joined: 3-January 09
Member No.: 4520



All the news conferences are archived on UStream:
http://www.ustream.tv/nasajpl

Pointers to individual ones are on JPL's site:
http://mars.jpl.nasa.gov/msl/news/whatsnew/

Each individual announcement contains pointers to the visuals, like this last one; but I suspect this URL is just for the latest:
http://www.nasa.gov/mission_pages/msl/telecon/index.html

Generally, the visuals show up archived either in the raws, the vetted "Images" section, in JPL's Photojournal, or in some combination of the three.
http://mars.jpl.nasa.gov/msl/multimedia/raw/
http://mars.jpl.nasa.gov/msl/multimedia/images/
http://photojournal.jpl.nasa.gov/targetFam...ry+%28MSL%29%3A
Go to the top of the page
 
+Quote Post
mcaplinger
post Sep 13 2012, 08:44 PM
Post #296


Senior Member
****

Group: Members
Posts: 1043
Joined: 13-September 05
Member No.: 497



QUOTE (charleski @ Sep 12 2012, 03:17 PM) *
there appears to have been a small void in the adhesive pre-flight and the roof of the void has now been removed.

I think this is an artifact of somewhat different viewing angle and quite different lighting direction and type of lighting. That RTV would be pretty hard to remove even if you tried to dig it out with an X-acto knife or a dental pick.

Also, the ground photo is the unrealistic saturated color of a typical lower-end commercial camera.


--------------------
Disclaimer: This post is based on public information only. Any opinions are my own.
Go to the top of the page
 
+Quote Post
charleski
post Sep 14 2012, 09:43 AM
Post #297


Junior Member
**

Group: Members
Posts: 26
Joined: 7-August 12
Member No.: 6485



Unfortunately NASA/JPL stripped the EXIF so we can't say what camera they used.

I suppose we'll get other images of the calibration targets later on, so we'll be able to see what it looks like with different lighting angles. The calibration targets are stowed quite low down, so probably received a similar covering of muck to that seen on the front hazcam covers (maybe more, since it's pointed towards the side, though the dust boundary seen on the lower part of the carrier suggests that something was partially covering it from the effects of the jets). We've already had one instrument (the REMS boom) suffer damage from environmental factors, so it might be useful to see what other data can be found about the forces that were experienced.
Go to the top of the page
 
+Quote Post
chris
post Sep 14 2012, 12:39 PM
Post #298


Member
***

Group: Members
Posts: 253
Joined: 4-January 05
Member No.: 135



QUOTE (maschnitz @ Sep 13 2012, 09:29 PM) *
All the news conferences are archived on UStream:
http://www.ustream.tv/nasajpl

Pointers to individual ones are on JPL's site:
http://mars.jpl.nasa.gov/msl/news/whatsnew/

Each individual announcement contains pointers to the visuals, like this last one; but I suspect this URL is just for the latest:
http://www.nasa.gov/mission_pages/msl/telecon/index.html

Generally, the visuals show up archived either in the raws, the vetted "Images" section, in JPL's Photojournal, or in some combination of the three.
http://mars.jpl.nasa.gov/msl/multimedia/raw/
http://www.nasa.gov/mission_pages/msl/telecon/index.html
http://photojournal.jpl.nasa.gov/targetFam...ry+%28MSL%29%3A


Admins, could we please add this to the sticky MSL FAQs and USEFUL DOCUMENTS topic? DONE! THANKS!
Go to the top of the page
 
+Quote Post
maschnitz
post Sep 14 2012, 04:56 PM
Post #299


Junior Member
**

Group: Members
Posts: 60
Joined: 3-January 09
Member No.: 4520



Thanks astro0, and chris.

One minor correction: I made a cut-and-paste error. The second to last URL should be this, not the telecon link:
http://mars.jpl.nasa.gov/msl/multimedia/images/

Could an admin make the correction in the sticky? DONE. Thanks again!
Go to the top of the page
 
+Quote Post
mcaplinger
post Sep 14 2012, 05:35 PM
Post #300


Senior Member
****

Group: Members
Posts: 1043
Joined: 13-September 05
Member No.: 497



QUOTE (charleski @ Sep 14 2012, 02:43 AM) *
Unfortunately NASA/JPL stripped the EXIF so we can't say what camera they used.

It was a Nikon D3 at f/5.7, ISO 200, 70mm focal length, pattern metering mode, and the flash was fired.

At over $3K list, I guess I wouldn't call that a "lower-end commercial camera" but I stand by my comments about the color accuracy (sorry, Nikon.)


--------------------
Disclaimer: This post is based on public information only. Any opinions are my own.
Go to the top of the page
 
+Quote Post

21 Pages V  « < 18 19 20 21 >
Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 24th May 2013 - 10:02 PM
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.