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sharponlooker

@sharponlooker@mastodon.social

Husband & Dad. Software Engineer. Planetary Science aficionado. Casual artist. Basque/Spanish heritage, assimilated Swede = suecobilbaíno. SW sequelist.

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

sharponlooker, to random
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A model for attenuation and speed of sound on Mars' surface. Thanks to section 1, I realized that somehow it had escaped me that there are sound recordings from Venus 🤯

Gillier et al: Geographical, Seasonal and Diurnal Variations of Acoustic Attenuation, and Sound Speed in the Near-Surface Martian Atmosphere
https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023JE008257

Sections 4.4 (Perspective and Future Work) and 5 (Conclusion)

sharponlooker, to random
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@65dBnoise I'm curious, where was Perseverance looking at in this SuperCam from sol 1149

https://mars.nasa.gov/rss/api/?feed=raw_images&category=mars2020&feedtype=json&id=LRF_1149_0768939317_146EBY_N0522540SCAM01149_0010I6J

sharponlooker,
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@65dBnoise Thank you!

sharponlooker,
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@65dBnoise don't they usually take a navcam context after supercam? I'm guessing it's this one, so it sould be around the center somewhere...

Feels a bit random, I seem to remember similar small details before. I wonder what triggered the observation, can I borrow the tag you use to go back to things when the Notebook gets updated and see what they were looking at?

https://mars.nasa.gov/mars2020/multimedia/raw-images/NLF_1149_0768941495_989EBY_N0522540SCAM01149_00_0LLJ

sharponlooker, (edited )
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@65dBnoise @tom30519 Yeah, that's the tag, now following it, thx!

Ok, so your context photo is from sol 1148. Still nothing out of the Mars ordinary (= extraordinary 😉 ), wonder why that specific rock. That sol had also SuperCam taking a telescopic view towards BrightAngel-like layers, nice!

https://areobrowser.com/#/mode=perseverance&id=P1148LR_SCAM06148&instruments=LR&timeframe=sol:1148&imageID=LRF_1148_0768848031_208EBY_N0522266SCAM06148_0010I9J

sharponlooker, to random
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@65dBnoise 🙃

65dBnoise, to space
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This is Bright Angel, a light colored rock formation in the ancient Neretva Vallis riverbed; the next scientific target for #Perseverance .

Looking at all those loose rocks on the steep slope above it, it's good that the geologically interesting parts are (I guess) those farthest from them.

Processed, leveled MCZ_RIGHT, FL: 110mm
looking WNW (297°) from RMC 52.1950
Sol 1145, LMST: 11:22:33

Original: https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/01145/ids/edr/browse/zcam/ZR0_1145_0768583075_910EBY_N0521950ZCAM09178_1100LMJ01.png
Credit: #NASA/JPL-Caltech/ASU/65dBnoise

#Mars2020 #Solarocks #Space

sharponlooker,
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@65dBnoise

65dBnoise, to space
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Grave of the Fallen Meteorite
(rather, a cenotaph)

Processed, cropped MCZ_RIGHT, FL: 110mm
looking WSW (256°) from RMC 52.1700
Sol 1144, LMST: 11:43:51

Original: https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/01144/ids/edr/browse/zcam/ZR0_1144_0768495621_473EBY_N0521700ZCAM09175_1100LMJ01.png
Credit: /JPL-Caltech/ASU/65dBnoise

sharponlooker,
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@65dBnoise shoddy gravedigging 🤣

65dBnoise, to space
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New location for on Sol 1145, RMC 52.2266. It's now downhill, all the way.

This map was created using mission data from 's , imagery and DTMs.

$space

image/jpeg

sharponlooker,
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@65dBnoise if they'd take a selfie now, would have a field day with it 🙃

sharponlooker,
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@65dBnoise i wonder if it would be the largest rover tilt imaged, or was that Curiosity angle even higher?

sharponlooker, to random
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Zoom on on its final resting place at , as imaged by with Mastcam and Supercam on different sols.

Source image treatments by @NeV_T & @stim3on (links in next post)

Crops of different viewing angles and at different daytimes. Supercam images carry more detail and software-enhancements

lzg, to random Spanish
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los amigos de Samoa continúan haciendo el favor de publicar mis cositas https://www.samoa.cr/blog/2024/4/28/flores-en-el-suelo-lena-zuniga

sharponlooker,
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@lzg precioso!

65dBnoise, (edited ) to space
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A fresh view of sand-surfing at Valinor Hills

's team taking a look back at the , which had been a companion of their rover for the past 3 years on Mars and is now forced to stay behind.

Processed, leveled MCZ_LEFT, FL: 110mm
looking NNE (29°) from RMC 52.0870
Sol 1138, LMST: 13:27:55

Original: https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/01138/ids/edr/browse/zcam/ZL0_1138_0767969390_223EBY_N0520870ZCAM09166_1100LMJ01.png
Credit: /JPL-Caltech/ASU/65dBnoise

sharponlooker, (edited )
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@65dBnoise new sweet ripple details there, nice contrast treatment!

65dBnoise, to philosophy
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A carbonized scroll from ash-covered Herculaneum, believed to have belonged to Julius Caesar's father-in-law, was recently read using advanced imaging diagnostic techniques, and revealed details about Plato's final hours:

https://www.theguardian.com/books/2024/apr/29/herculaneum-scroll-plato-final-hours-burial-site

sharponlooker,
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@65dBnoise The Onion headline : "Once-slave slaveowner was an arse to a child slave on his deathbed" 😉

sharponlooker, to random
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Still mesmerized by the multiple wavy patterns on the Neretva ripples (likely cause, wind sorting https://deepspace.social/)

I think the best views are still from sol 1110, best on low phase angle from Mastcam. Here are my fav ripples, with @NeV_T 's treatment.

@65dBnoise @stim3on do you think there's even a better way to increase the contrast of those waves (I can't get better results with my tools). The ultimate test is to reveal that subtle wave to the right of the blue line

image/png

sharponlooker,
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@65dBnoise @stim3on

Two "raw" views:
https://mars.nasa.gov/mars2020/multimedia/raw-images/ZR0_1110_0765478371_069EBY_N0512578ZCAM09133_1100LMJ

https://mars.nasa.gov/mars2020/multimedia/raw-images/ZL0_1110_0765478371_069EBY_N0512578ZCAM09133_1100LMJ

sharponlooker,
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@65dBnoise Thank you! An improvement, specially the 2nd one. I count 5 wavetrains on the lower ripple, that subtle one is still so dim...

You got fantastic colours and contrasts on your treatment yesterday, is there such a lightning difference between these 2 sols?

https://mastodon.social/@65dBnoise/112331265524574099

sharponlooker,
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@65dBnoise totally understand. I'm juggling between the sol 1110 gigapan, @stim3on 's from sol 1130 (https://gigapan.com/gigapans/234668) and your "artistic" treatment and they all convey the same thing in so similar but so different ways 😉

sharponlooker,
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@65dBnoise and still, it was the one rendering that made me see the bands (the "it" in the darkness 😉)

sharponlooker,
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@65dBnoise it's kind of funny that y'all are focusing (rightly so) on what can be inferred about Ingenuity and I can't shut up about "waves in the sand" 😂 Apologies for the distraction

sharponlooker,
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@65dBnoise Aye to that! I couldn't help yday but think "have I just realized water is wet?" abt those bands. But after some elder panorama browsing, nope, they aren't common. I've seen papers coming to well-thought out conclusions on less datapoints than these, so it wouldn't surprise me they'll end up being used for science.

Or, who knows, if Perseverance wanders back years from now and images them again, maybe they can be used as markers of aeolian processes along Ingenuity's gathered data 😉

sharponlooker,
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@65dBnoise I don't think these ripples move/grow that fast, and it's perched rather high, maybe she even shields that crest, who knows, IANAG™ 😉

sharponlooker,
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@65dBnoise 🤣

sharponlooker, to random
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Old but gold on dunes, ripples etc
https://www.planetary.org/articles/0219-sand-waves-in-the-desert

re lboost https://mastodon.social/@65dBnoise/112331265524574099

sharponlooker,
@sharponlooker@mastodon.social avatar

@PaulHammond51 it's not easy for the untrained eye... let's call them bedforms 😂

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