MARS: CURIOSITY u krateru GALE Vol II.

Uskoro će stići do ovoga mjesta gdje sada interpolirano...

MISSION UPDATES |  January 13, 2020  

Sols 2645-2646: A Strange Trough on Western Butte
Written by Melissa Rice, Planetary Geologist at Western Washington University
 
While descending from Western Butte, Curiosity has stopped to investigate a strange trough along the way. In the images from orbit, it looks like someone drew a thick straight line with a dark felt marker on the southeastern side of the butte. From the ground, it looks like a shallow ditch filled with dark sand. We don’t know what created this feature, or why it happens to be right here, so it’s worth stopping for a closer look.
Over the weekend (Sols 2642-2644), Curiosity drove downhill and parked at the top of the trough, which we named “Balgy.” The main event in today’s plan (Sols 2645-2646) is a large Mastcam stereo mosaic covering both sides of Balgy Trough. We’ll also take a smaller Mastcam stereo mosaic of laminated rocks nearby called “Baljaffray,” and grab a quick set of MAHLI and APXS observations on the bedrock target “Kennedys Pass.” After that, Curiosity will finish descending from Western Butte and will head south.

Silazak i prelazak u ravni(ji) dio...nemam još točne lokacije.

Kao da idu pogledati zadnju (južnu) stranu Western Butte.

jesi ti siguran da je to Mars? meni više sliči na hercegovinu.

Ovi u NASA-i u zadnje vrijeme kasne sa updatom rute, zato je sam unosim koliko mogu točnije.

Gnječ wrote:jesi ti siguran da je to Mars? meni više sliči na hercegovinu.

Šuti, vidiš da mutim dok se vi Vlasi ne dosjetite.

Eroo wrote:

Gnječ wrote:jesi ti siguran da je to Mars? meni više sliči na hercegovinu.

Šuti, vidiš da mutim dok se vi Vlasi ne dosjetite.

pa vidim ja da ti fotošopiraš slije herceg-bosne pa tu lipiš ka da su sa Marsa pale.

Tik pred zalaskom sunca...

Iz 8 zaporedmih snimaka sam sastavio GIF i evo...očigledno je uhvaćen "dust devil".(brzina kretanja proizvoljna)
Ovo će netko obradit malo bolje (kroz filtere) pa će se vidjeti bolje.

Spustio sam kroz filter "inverse color" i već je bolje.
 

Pronicanjem vode, kroz naslage mulja i pjeskovitohg materijala, su nastale ovake naslage minerala. 

Geomehanik bi mogao veoma lagano objasniti mehanizam nastanka ove "rasjede" (pukotine),
a mogu i ja , jer mi je blisko s onim s čime se i inače bavim.
Nastalo je prilikom potresa, na primjer udara nebeskih tijela tu u blizini.
Došlo je do udara (odguravanja) zaleđa, kod čeka je nastala ova pukotina u tlu, a ujedno do odbacivanja
jednog dijela Western Butte na suprotnoj strami. Koga zanima može to vidjeti i na dosadašnjim fotografijama.

Lava robotske ruke...off-on

MISSION UPDATES |  January 20, 2020  

Sols 2649-2652: Curiosity Loses Its Attitude

Written by Dawn Sumner, Planetary Geologist at University of California Davis
 
This Hazcam image shows Curiosity's arm extended out to perform an APXS analysis of the bedrock. Curiosity has to know the exact angle of every joint to move safely. Credit: NASA/JPL-Caltech

Knowing where our bodies are helps us move through the world. We know if we are standing or sitting, if our arms are out or by our sides (or for some people, not there at all). This body awareness is essential for staying safe.
Rovers also need to know where their bodies are relative to their surroundings. Curiosity stores its body attitude in memory, things like the orientation of each joint, which instrument on the end of its arm is pointing down, and how close APXS is to the ground. It also stores its knowledge of the environment, things like how steep the slope is, where the big rocks are, and where the bedrock sticks out in a dangerous way. Curiosity evaluates this information before any motor is activated to make sure the movement can be executed safely. When the answer is no - or even maybe not - Curiosity stops without turning the motor. This conservative approach helps keep Curiosity from hitting its arm on rocks, driving over something dangerous, or pointing an unprotected camera at the sun. These safety checks require an accurate knowledge of the rover position within its environment and are an essential part of good engineering practice. They have kept Curiosity safe over the years.
Partway through its last set of activities, Curiosity lost its orientation. Some knowledge of its attitude was not quite right, so it couldn't make the essential safety evaluation. Thus, Curiosity stopped moving, freezing in place until its knowledge of its orientation can be recovered. Curiosity kept sending us information, so we know what happened and can develop a recovery plan. That is exactly what we did today: The engineers on the team built a plan to inform Curiosity of its attitude and to confirm what happened. We want Curiosity to recover its ability to make its safety checks, and we also want to know if there is anything we can do to prevent a similar problem in the future. This approach helps keep our rover safe.

Good News: Attitude Adjustment - Mission Update for Sols 2653-2655: From Scott Guzewich, Atmospheric Scientist at NASA's Goddard Space Flight Center [summary & links in comments]



Attitude Adjustment - Curiosity Rover Mission Update for Sols 2653-2655: Written by Scott Guzewich, Atmospheric Scientist at NASA's Goddard Space Flight Center, January 21, 2020.
Last Friday’s plan was designed to ensure Curiosity had enough knowledge of its orientation to proceed with arm activities and mobility.
We learned this morning that plan was successful and Curiosity was ready for science once more!
And a very full science plan was made! Much of today’s plan was recycled from last Friday’s intended plan, including contact science with APXS and MAHLI on bedrock targets Moffat Hills and Trossachs. There also was a plethora of ChemCam LIBS targets, a Mastcam mosaic of Western Butte, Mastcam multispectral images on Trossachs, and ENV movies to search for clouds and dust devils while also documenting atmospheric dust levels.
Today’s plan also included a rare measurement with APXS to measure the argon abundance in the atmosphere.
Approximately 25% of Mars’ carbon dioxide-rich atmosphere condenses on the winter polar ice cap, while trace gases like argon do not. This leads to seasonal variations in the relative fraction of argon to carbon dioxide in the air. APXS can measure this argon variation by simply turning on and looking at the sky while the arm is stowed. Seeing argon vary through the year is akin to watching Mars breathe!

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This NavCam image was taken over the weekend, it shows Curiosity's arm extended out to perform an earlier APXS analysis of the bedrock. Credit: NASA/JPL-Caltech

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