@65dBnoise@mastodon.social
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65dBnoise

@65dBnoise@mastodon.social

Electrical engineer
Marveling at the world

Lots of Martian rocks and landscapes, some looking all too familiar, but don't be fooled by that: Mars is an inhospitable toxic planet. Let's not mistake fiction for reality.

I like dirt and rocks, but I Am Not A Geologist (IANAG).

This profile is from a federated server and may be incomplete. Browse more on the original instance.

65dBnoise, to space
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More white rock fragments seen NNE of .

Processed, cropped MCZ_RIGHT, FL: 110mm
looking NNE (28°) from RMC 52.4450
Sol 1168, LMST: 12:43:22

Original: https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/01168/ids/edr/browse/zcam/ZR0_1168_0770629879_659EBY_N0524450ZCAM09205_1100LMJ01.png
Credit: /JPL-Caltech/ASU/65dBnoise

65dBnoise, (edited ) to uk
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Looter Lord Elgin presented an Italian "translation" of a fictional Ottoman firman, the original of which no one ever saw or had otherwise knowledge of, then ripped off the , sawing some in his haste, and moved them to England, where they were scraped clean of the ancient colors that still remained on the marbles.

Turkiye's statement that they "are not aware of any document that legitimizes that «purchase» done by coloni[al] back at that time"

https://www.youtube.com/embed/hIF_Br8ZeT0?&t=16373

65dBnoise,
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The temple was first destroyed by Theodosius' bigoted Christians in the 4th c CE, then by Venusian Francesco Morosini in the 17th c, who described his vandalism as "a fortunate shot" and went on smashing sculptures from the pediment in his attempt to loot the Acropolis, and then in the early 19th c by Lord Elgin, who stole about half of the sculptures that had survived 2000 years on the Sacred Rock.

Lord Byron's, "The Curse of Minerva": https://en.wikisource.org/wiki/The_Works_of_Lord_Byron_(ed._Coleridge,_Prothero)/Poetry/Volume_1/The_Curse_of_Minerva

65dBnoise, to uk
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Turkiye's statement that "we are not aware of any document that legitimizes that «purchase» done by coloni[al] #UK back at that time."

So, the looter Elgin presented an Italian "translation" of a fictional Ottoman firman, the original of which no one ever saw or had otherwise knowledge of, then ripped off the #ParthenonSculptures, sawing some in his haste, and moved them to England, where they were scraped clean of the ancient colors that still remained on the marble.

https://www.youtube.com/hIF_Br8ZeT0?si=s4Hhp_8IBAYjReaf&t=16373

65dBnoise, to space
@65dBnoise@mastodon.social avatar

This is what success¹ looks like:

Not sideways neither capsized, but upright on its feet, completing the mission and embarking on the journey back, the 'νόστος' of Homer's Odyssey, only much less tutted, as if it were a routine event, thus deserving

κύδος

for both the ethos and the accomplishment.

¹Success: in reference to #NASA's Bill Nelson calling Intuitive Machine's Odysseus barely surviving landing a "success" and a "triumph".

CNSA: https://m.weibo.cn/status/Ohr341aFr

#Change6 #China #Solarocks

65dBnoise, (edited ) to space
@65dBnoise@mastodon.social avatar

Martian intricacies
by

Processed SUPERCAM_RMI
looking NNE (14°) from RMC 52.5032
Sol 1169, LMST: 09:58:56

Original: https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/01169/ids/edr/browse/scam/LRF_1169_0770708542_507EBY_N0525032SCAM01169_0050I6J03.png
Credit: /JPL-Caltech/LANL/CNES/IRAP/65dBnoise

65dBnoise,
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@sharponlooker
Fewer rocks and an even ground may be enhancing (or even, creating) that feeling. After all, we're all soft tissued humans.

65dBnoise, to space
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Dead reckoning

Processed, cropped NAVCAM_LEFT mosaic
looking ESE (106°) from RMC 52.5032
Sol 1168, LMST: 15:03:50

Original: https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/01168/ids/edr/browse/ncam/NLF_1168_0770638550_816ECM_N0525032NCAM02168_04_195J01.png
Credit: /JPL-Caltech/65dBnoise

65dBnoise,
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@PaulHammond51
The odds are better for a Martian Crow to flyby the heli and say "caw-caw" than they are for the rover to cross the sand field and say "cling-cling" 🥴

65dBnoise, to space
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It looks like #Perseverance went for the bacon¹ 🙂

On Sol 1168 the rover moved to RMC 52.5032 across the ancient riverbed and stopped a few meters away from a light colored layer of rock at the foot of the northern bank, which appears to be the same layer with that of Bright Angel.

¹"the bacon strip": unofficial name for a light colored layer of rock back at the Three Forks area.

This map was made with #QGIS and data from #MMGIS, #HiRISE and #USGS

#Mars2020 #NASA #Solarocks #Space

65dBnoise,
@65dBnoise@mastodon.social avatar

@PaulHammond51

The HiRISE/USGS imagery has been imported into QGIS and since forgotten. I'm not fiddling with the rest of the imagery any more, though I used to do that earlier in this mission.

"Space economy" seems to have real impact on the way NASA engages with the public. I've spent a lot of time creating workflows with their data, e.g. for the reports, LA, etc, but they're now discontinuing services while the mission is still active. That's not very encouraging.

65dBnoise, to random
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How should regulators think about "AI"?

"[…] discussions of this technology become much clearer when we replace the term "AI" with the word "automation". And then we can ask :
• what is being automated?
• who's automating it and why
• who benefits from that automation
• how well does the automation work in each use case we're considering
• who's being harmed
• who has accountability for its functioning
• what existing regulations already apply"

By @emilymbender

https://www.youtube.com/watch?v=eK0md9tQ1KY

65dBnoise, to space
@65dBnoise@mastodon.social avatar

Hard rock.

Variations on a theme:
Mars: Rocks & earthly colors

Processed SUPERCAM_RMI
looking ENE (74°) from RMC 52.4312
Sol 1167, LMST: 13:27:41
Original: https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/01167/ids/edr/browse/scam/LRF_1167_0770543862_223EBY_N0524312SCAM02167_0100I6J01.png

Processed, cropped MCZ_LEFT, FL: 110mm
Original: https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/01167/ids/edr/browse/zcam/ZL0_1167_0770544394_159EBY_N0524312ZCAM03916_1100LMJ01.png

Credit: /JPL-Caltech/LANL/CNES/IRAP/65dBnoise, NASA/JPL-Caltech/ASU/65dBnoise

image/jpeg

65dBnoise, to space
@65dBnoise@mastodon.social avatar

Hard rock.

Variations on a theme:

Rocks & earthly colors

Processed SUPERCAM_RMI
looking ENE (74°) from RMC 52.4312
Sol 1167, LMST: 13:27:41
Original: https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/01167/ids/edr/browse/scam/LRF_1167_0770543862_223EBY_N0524312SCAM02167_0100I6J01.png

Processed, cropped MCZ_LEFT, FL: 110mm
Original: https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/01167/ids/edr/browse/zcam/ZL0_1167_0770544394_159EBY_N0524312ZCAM03916_1100LMJ01.png

Credit: /JPL-Caltech/ASU/65dBnoise


Credit: /JPL-Caltech/LANL/CNES/IRAP/65dBnoise

image/jpeg

astro_jcm, to chile
@astro_jcm@mastodon.online avatar

Soon the telescope platform at ESO's Paranal Observatory in will look very different at night: all four of the 8.2 m telescopes of the VLT will be equipped with lasers! This is one of the ongoing upgrades of the GRAVITY+ instrument, which will allow us to study black holes, stars and planets like never before.

Find out more in this great article by current and former ESO communication interns Elena Reiriz Martinez and Tom Howarth: https://www.eso.org/public/blog/gravity-leap-vlti/

65dBnoise,
@65dBnoise@mastodon.social avatar

@astro_jcm
Excellent article and animation. Science communication at its best. 👍 👍 !!

Animation: https://www.youtube.com/embed/Zc2oMnTB08E

65dBnoise,
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@astro_jcm
😀 Indeed. It also reminds me of Tron, the movie.

65dBnoise, (edited ) to space
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That white-ish rock (https://mastodon.social/@65dBnoise/112527256691375965) has quite an interesting texture. Seen here with 's telescope.

Processed SUPERCAM_RMI
looking ENE (57°) from RMC 52.4312
Sol 1164, LMST: 12:00:08

Original: https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/01164/ids/edr/browse/scam/LRF_1164_0770272141_159EBY_N0524312SCAM01164_0010I6J01.png
Credit: /JPL-Caltech/LANL/CNES/IRAP/65dBnoise

65dBnoise,
@65dBnoise@mastodon.social avatar

@stim3on
You are welcome. About what processing I've done to them: I kept some notes at the time (about a year ago, maybe?), which were supposed to have been saved along with the rest of Mars2020 stuff, but I can't find them rn. Those flats were very obviously different from the rest of SUPERCAM's images and I immediately tried them as flats, but I can't recall whether those I'm using now are the EBY or the ECM.

LA is not capable of such kind of searches, so I may have to sift through them
1/

65dBnoise,
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@stim3on
manually. It'd be good to find the originals as I'm sure they'll make your processing much-much easier, as they have made mine too.

65dBnoise, (edited )
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@stim3on
Have a look at the SUPERCAM images from Sol 868, they were about a year ago and possibly the ones I uploaded to my repository. The ones I uploaded are value-stretched to cover 100% of the high (bright) range.

https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/00868/ids/edr/browse/scam/LRF_0868_0744017905_111EBY_N0421460SCAM05868_0020I9J01.png

This is what I mean (GIMP color curves):

65dBnoise,
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@stim3on
I see you have de-saturated the skyflats. I use them as is, with their cyan-ish color in place, which apparently when dividing an image with them, removes the green cast.

I just did the procedure again from scratch with the EBY png directly downloaded from NASA, did some white balancing to my taste, contrast stretched it, and here it is:

65dBnoise,
@65dBnoise@mastodon.social avatar

@stim3on
Yes, I noticed you mentioned that earlier. But you employ that optimized debayering technique, IIRC, that makes your results better than those of NASA, judging by the outcome. I'm using G'MIC for debayering, and I don't trust my settings will give better results than NASA's, tbh.

65dBnoise,
@65dBnoise@mastodon.social avatar

@stim3on
What result do you get if you apply my rather simple technique I described earlier?

65dBnoise,
@65dBnoise@mastodon.social avatar

@stim3on
That looks very good, not even a hint of the green cast, and flatter than my quick and dirty one I posted earlier. I can get better vignette correction, but then I too need to correct the perimeter on a separate step by using masks.

Here is a comparison of the two images:

65dBnoise,
@65dBnoise@mastodon.social avatar

@stim3on
Oooh! Extra flat results! I need to see how I can include this into my handy workflow without becoming an expert in juggling pixels around with math 😜. I tried that in the past and it's fascinating, but I expect to only live to be 105 yo, so I can only do so much in this life 😆
Thanks for the link!

65dBnoise,
@65dBnoise@mastodon.social avatar

@stim3on
Almost invisible, indeed, if one doesn't compare it with the original MCZ. Upscaling the MCZ also helps provide more uniform details 😎

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