My Assistant
MOM At Mars, Mission Operations |
Sep 24 2014, 02:33 AM
Post
#1
|
|
|
Merciless Robot ![]() ![]() ![]() ![]() Group: Admin Posts: 8791 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Successful insertion!!!!! Congratulations to ISRO!!!!
-------------------- 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.
|
|
|
|
![]() |
Oct 6 2014, 07:22 AM
Post
#2
|
||
![]() Member ![]() ![]() ![]() Group: Members Posts: 238 Joined: 15-January 13 Member No.: 6842 |
A quick Photoshop levels adjustment, using "Enhance Per Channel Contrast" with "Snap Neutral Midtones" box checked:
I think this has resulted in colours very close to the colours of the surface as we have seen from raw Mastcam and MAHLI images. I remember reading in a few places that the pronouncedly red appearance of Mars when photographed from outside of its atmoshere is due to all the dust suspended in its atmosphere. -------------------- Curiosity rover panoramas: http://www.facebook.com/CuriosityRoverPanoramas
My Photosynth panoramas: http://photosynth.net/userprofilepage.aspx...;content=Synths |
|
|
|
||
Oct 6 2014, 02:51 PM
Post
#3
|
|
![]() Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 4271 Joined: 17-January 05 Member No.: 152 |
I think this has resulted in colours very close to the colours of the surface as we have seen from raw Mastcam and MAHLI images. I remember reading in a few places that the pronouncedly red appearance of Mars when photographed from outside of its atmoshere is due to all the dust suspended in its atmosphere. Mastcam cameras have a well-known "greenish cast" making the surface look yellowish. If atmospheric dust reddened the planet, then the limbs should be redder than the centre of the disc, since you look through more dusty air near the limbs. Also the planet should look redder during global duststorms, but I haven't heard of a hue shift during duststorms. |
|
|
|
Oct 6 2014, 04:22 PM
Post
#4
|
|
|
Junior Member ![]() ![]() Group: Members Posts: 64 Joined: 17-December 12 From: Portugal Member No.: 6792 |
The surface color seen from space suffers the effect of the atmosphere 2 times. Light must come down and then back up.
So any hue will be magnified on full disk images, more so if there's dust or anything that absorbs / reflects light. The Red Mars from orbit is an accurate rendition of what you would see, the same way as astronauts see the Earth as a blue planet. If really doesn't compare to what it looks like on the ground . The limbs are also complicated because you have phase angle there. One thing is reflected light, another absorbed light, just to keep things simple. But you really have to take into account scatting, diffraction, etc, etc. Really not that simple. And on Mars you have limb hazes and clouds, so a bluish color is to be expected there. All this meaning that the MOM image is just fine. -------------------- www.astrosurf.com/nunes
|
|
|
|
nprev MOM At Mars Sep 24 2014, 02:33 AM
Astro0 That's two for two this week!! And now... Sep 24 2014, 04:09 AM
nprev Apparently only available as a Facebook link right... Sep 25 2014, 06:01 AM
djellison By my guessing it's approx 1100 x 850km, the s... Sep 25 2014, 06:06 AM
nprev And you call that "guessing"... Great... Sep 25 2014, 06:11 AM
Astro0 Just posting the first image here.
From ISRO... Sep 25 2014, 06:17 AM
kenny A great first photo ... and in colour! The s... Sep 25 2014, 09:15 AM
nprev MOD MODE: Reminder to all members that rule 1.2 wi... Sep 25 2014, 10:39 AM
elakdawalla A second photo. This one is actually at the camera... Sep 25 2014, 02:53 PM
Julius QUOTE (elakdawalla @ Sep 25 2014, 03:53 P... Sep 25 2014, 02:58 PM
machi It shows boundary between Terra Sabaea and Arabia ... Sep 25 2014, 03:49 PM
Phil Stooke Good for you! You're right. I was lookin... Sep 25 2014, 03:57 PM
Phil Stooke Playing with the ISRO image (Thanks, ISRO!) to... Sep 25 2014, 04:11 PM
4throck Phil, that last image looks like something from Ma... Sep 25 2014, 06:30 PM
MarsInMyLifetime QUOTE (4throck @ Sep 25 2014, 12:30 PM) I... Sep 25 2014, 07:13 PM
Krit Another photo (from the ISRO Facebook Page)
... Sep 29 2014, 01:06 PM
vikingmars My interpretation, processed, de-noised and de-sat... Sep 30 2014, 08:03 AM
Julius I'm no expert in image processing but I would ... Sep 30 2014, 12:06 PM
vikingmars Thanks Julius. But what is the "Ted's ver... Sep 30 2014, 12:34 PM

Krit I suppose he is referring to this version. Sep 30 2014, 12:53 PM
djellison QUOTE (Julius @ Sep 30 2014, 04:06 AM) I... Sep 30 2014, 01:28 PM
Julius What about dust clouds resulting from a dust storm... Sep 30 2014, 03:45 PM
djellison Obviously not - which is why the dust storms visib... Sep 30 2014, 03:58 PM
elakdawalla It's been interesting to see all the different... Sep 30 2014, 04:06 PM
Bjorn Jonsson QUOTE (elakdawalla @ Sep 30 2014, 04:06 P... Oct 1 2014, 01:13 AM
vikingmars QUOTE (elakdawalla @ Sep 30 2014, 06:06 P... Oct 1 2014, 07:38 AM
Bjorn Jonsson Beautiful images so far and congratulations to the... Oct 1 2014, 12:51 AM
mcaplinger QUOTE (Bjorn Jonsson @ Sep 30 2014, 05:51... Oct 1 2014, 02:43 AM
Julius Only now I realize who vikingmars is! I have ... Oct 2 2014, 09:20 PM
vikingmars QUOTE (wildespace @ Oct 6 2014, 09:22 AM)... Oct 6 2014, 07:48 AM
fredk Another factor is the seasonal variation in atmosp... Oct 6 2014, 04:54 PM
Bjorn Jonsson Also comparing Mars's global color with the Cu... Oct 7 2014, 12:04 AM
djellison QUOTE (Bjorn Jonsson @ Oct 6 2014, 05:04 ... Oct 7 2014, 12:26 AM
4th rock from the sun Completely subjective. And it changes with the tel... Oct 7 2014, 11:01 AM
fredk QUOTE (4th rock from the sun @ Oct 7 2014, 11... Oct 7 2014, 02:44 PM
Phil Stooke A new MOM image of Mars has been released - see Em... Oct 7 2014, 08:32 PM
vikingmars My interpretation of the new global Mars image tak... Oct 8 2014, 03:30 PM
ugordan My attempt at "un-enhancing" the image:
Oct 8 2014, 07:09 PM
Hungry4info Phobos (animation)
https://mtc.cdn.vine.co/r/video... Oct 14 2014, 02:46 PM
Mr Valiant Through my telescope (8" Newtonian) the Mars ... Oct 15 2014, 10:03 AM
vikingmars The last image from the Indian Mars Orbiter Missio... Oct 18 2014, 04:59 PM
MahFL QUOTE (vikingmars @ Oct 18 2014, 05:59 PM... Oct 18 2014, 08:04 PM
Bjorn Jonsson QUOTE (MahFL @ Oct 18 2014, 08:04 PM) Do ... Oct 19 2014, 01:43 AM
vikingmars QUOTE (Bjorn Jonsson @ Oct 19 2014, 03:43... Oct 19 2014, 05:46 PM
Phil Stooke The MOM images of Phobos and Deimos have been high... Feb 6 2015, 07:11 PM
elakdawalla Dr. Arya provided me with one more file that I did... Feb 6 2015, 09:00 PM
Phil Stooke I tried to get something out of that, but I couldn... Feb 9 2015, 03:21 PM
rasun New photos released:
http://www.hindustantimes.c... Mar 12 2015, 01:36 AM
Steve G ISRO just released its first scientific findings. ... Jun 4 2015, 12:46 AM
belleraphon1 Isro to reveal Mar's methane secret on Thursda... Sep 23 2015, 10:51 AM
Ron Hobbs QUOTE (belleraphon1 @ Sep 23 2015, 02:51 ... Sep 25 2015, 04:41 PM
Paolo Color camera Mars atlas released: Celebrating one ... Sep 24 2015, 05:43 AM
belleraphon1 Would seem so. My information just came from the a... Sep 25 2015, 05:35 PM
Paolo as I understand it, ISRO was only going to release... Sep 25 2015, 06:44 PM
dvandorn I read a second-hand report that went something li... Sep 26 2015, 12:30 AM
Explorer1 Nice report from SpaceFlight 101 (includes the Dei... Nov 12 2015, 04:44 AM
Seryddwr Just bumping this thread to see if anyone's he... Jan 9 2016, 02:56 PM
blueaeshna QUOTE (Seryddwr @ Jan 9 2016, 03:56 PM) J... Jun 15 2018, 07:01 PM
blueaeshna Oops just notice thats way out of date Jun 15 2018, 07:03 PM
Ohsin Apologies for bumping this old thread but today IS... Sep 27 2022, 01:53 PM
nprev Topic title edited- admin Sep 30 2022, 06:28 AM
Decepticon https://www.space.com/india-mars-orbiter-mi...n-lo... Oct 4 2022, 01:31 AM
nprev Here's the official announcement of EOM.
Cong... Oct 5 2022, 04:23 PM![]() ![]() |
|
Lo-Fi Version | Time is now: 16th December 2024 - 06:39 AM |
|
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE 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 funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |
|