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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. For a complete list of posts, browse on the original instance.

Nonilex , to random
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Thurs 30 May 2024 🧵 continue

Justice says he believes that the wants him to repeat a significant portion of the .

He will read pages 6-35.

Each page yesterday took him just a little more than a minute, so this will take >30 mins.

Between that & the testimony readbacks, also expected to take >30 mins, there will likely be >1 hour this morning w/the jury in the courtroom, not actively deliberating.

65dBnoise ,
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@Nonilex
Thank you for the quality of your coverage!

65dBnoise ,
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@Nonilex 🤣

Nonilex , (edited ) to random
@Nonilex@masto.ai avatar

Tues 29 May 2024 🧵
Good morning! It’s the last day of the #TrumpTrial before jury #deliberations.
Today Justice #Merchan will give #JuryInstructions. Then they will discuss the case among themselves for the first time; they have not been allowed to even discuss it w/each other as yet.

Closing arguments took place yesterday, & the lawyers will have no further opportunity to address the jurors before they determine whether #Trump is #guilty or not guilty of 34 felonies.

#criminal #law

65dBnoise ,
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@Nonilex
Thank you for your coverage!

65dBnoise , to random
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New location for on Sol 1144, RMC 52.1950.

This may be the last location visible by 's RTE camera, as the rover has now reached the theoretical limit of its field-of-view (cyan line). The has been programmed to capture one RTE image every sol for as long as it is able to wake up every sol perform its routine of gathering environmental and system data, as a stationary testbed.

65dBnoise OP ,
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The slope of the southern Neretva Vallis riverbank appears steepening at this new location. This may be the start of the hardest part of the descent to the ancient riverbed, on the way to the geologically interesting rock formation Bright Angel, the next science target for .

Processed, leveled NAVCAM_RIGHT quick mosaic
looking WNW (285°) from RMC 52.1950
Sol 1144, LMST: 13:03:58

Original: https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/01144/ids/edr/browse/ncam/NRF_1144_0768500572_521ECM_N0521950NCAM03144_15_095J01.png
Credit: /JPL-Caltech/65dBnoise

The image shows a possible path (darken zone) the rover Perseverance may take as it descents the southern riverbank of the ancient river that once flowed through Neretva Vallis, in the western Jezero Crater on Mars. In the background, a line shows its next target: a rock formation at the foot of the northern riverbank, called Bright Angel.
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    elizabethtasker , (edited ) to random
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    OK, OK... so IMPORTANT QUESTION. Can we say "globally" when discussing the entire surface of a celestial body such as Phobos? That Martian moon baby isn't remotely spherical. It's a potato.

    65dBnoise ,
    @65dBnoise@mastodon.social avatar

    @elizabethtasker
    Why not be creative? Just call it:
    Blobbal topology
    and it shall be blobbally recognizable.

    (or, is it blobal?)

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

    Dissecting 's accident.

    This animation shows one of the rotor blades before and after the 's 72nd landing. The fact that the image with the broken blade had to shrink and change perspective so much to match the other one is an indication of the RTE camera being much closer to the ground after landing 72.

    Superimposed, transformed RTE images from and .

    Originals:
    https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/01008/ids/edr/browse/heli/HSF_1008_0756416571_585ECM_N0690001HELI00000_000085J01.png
    https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/01040/ids/edr/browse/heli/HSF_1040_0759257443_233ECM_N0720001HELI00000_000085J01.png

    video/mp4

    65dBnoise OP ,
    @65dBnoise@mastodon.social avatar

    @JSharp1436
    I guess that's true for space museums or for collectors, but for engineers what is actually priceless is the design documents, the test and actual telemetry data, and the experience of the people that built it. Those can help build better ones and give us unlimited fun 😀

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

    lost communications with during the 's descent for landing after its pop-up , a few sols ago.

    The helicopter was already out of sight and at a distance of ~1km, as seen in the map below. There is an obstructing mound about midway that rises 13m above the line-of-sight, which might be the reason for the loss of signal. Despite that, assuming Ingenuity's landing software worked as usual, the helicopter may be in good health, but

    1/

    65dBnoise OP ,
    @65dBnoise@mastodon.social avatar

    as if something dragged or hit the ground during (https://mastodon.social/@65dBnoise/111750833533763835)

    The fact that there is just one image from attests to the fact that communication with the rover was already bad before the flight, and probably remained bad after popup which landed at about the same location.

    3/3

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