Pienellä säätämisellä onnistui #pixl-tilin luonti ja ensimäisen kuvan jakaminenkin.
Osoitteella https://pixl.fi/HalttusMarkku löytyy...
Mysterious and fascinating Martian raw images
captured by Perseverance with her PIXL Micro Context Camera
#Mars Aug. 24, 2024 (Sol 1249)
Credits: NASA/JPL-Caltech
After trying its luck as a hip-hop broadcaster to other planets, #NASA now appears to have gone down the "AI" road, calling repeatedly "AI" what the article reveals is an “adaptive sampling” technique used by #Perseverance with its #PIXL instrument.
The article seems to be calling "AI" everything that's done automatically on the rover, even its AutoNav system, which last time I checked was still called AutoNav.
https://www.jpl.nasa.gov/news/heres-how-ai-is-changing-nasas-mars-rover-science
1/
Here is a sample lab-generated X-ray spectra for the NIST 610 glass standard, which is used for one of the 4 disks in the PIXL calibration disk.
The monthly scan of the calibration disk by PIXL must compare results with similar graphs to measure, and perhaps to correct, any deviations in PIXL's measurements.
https://www.researchgate.net/figure/NIST-610-glass-standard_fig2_359717424
https://en.wikipedia.org/wiki/SEM-XRF
#Mars #Perseverance #PIXL
8/n
The PIXL instrument can detect elements: Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Br, Rb, Sr, Y, Ga, Ge, As, and Zr, with important trace elements such as Rb, Sr, Y and Zr detectable at 10’s ppm level.
https://mars.nasa.gov/mars2020/spacecraft/instruments/pixl/for-scientists/
#Mars #Perseverance #PIXL
7/n
The PIXL Sensor Assembly is mounted at the end of the rover’s robotic arm. The control electronics are mounted inside the rover body.
The PIXL calibration target is mounted at the base of the robotic arm, on the front side of the rover.
The graphic below shows the location of PIXL and its calibration target, with PIXL looking directly at the calibration target.
https://an.rsl.wustl.edu/help/Content/About%20the%20mission/M20/Instruments/M20%20PIXL.htm
#Mars #Perseverance #PIXL
3/n
PIXL measures the fine-scale chemical makeup of rocks using an X-ray spectrometer and a camera. It focuses an X-ray beam to a small spot ~ 150 µm, scans the surface with this beam, and then measures the induced X-ray fluorescence.
The presence of different elements result in spikes at various wavelengths and energy levels, which are measured by PIXL's X-ray spectrometer.
https://an.rsl.wustl.edu/help/Content/About%20the%20mission/M20/Instruments/M20%20PIXL.htm
#Mars #Perseverance #PIXL #Science
2/n
What is that curious looking object imaged by Mars Rover Perseverance yesterday?
No, it is not a target practice plate for SHERLOC the laser zapper, it is the calibration target for PIXL, the Planetary Instrument for X-Ray Lithochemistry, which is mounted at the end of the robotic arm along with SHERLOC and the drilling apparatus.
The calibration target contains 4 sample disks with known X-ray signatures that PIXL scans approx. once a month.
https://mars.nasa.gov/mars2020/multimedia/raw-images/
#Mars #Perseverance #PIXL
1/n
#CoombeHill monument #Buckinghamshire #fomapan400 developed in a #monobath solution. #35mmfilm taken on an old #Soviet #Fed50 scanned using #pixl-latr and #DSLR #photo #photography #analogue #filmisnotdead
@magicaltrout
Joking, hinting or criticizing is not only welcome but necessary to keep some balance 
Tried to find ways to present PIXL images before, with questionable results (img). PIXL is a unique instrument, though not an easy one to engage with on a frequent basis. But its findings published in papers and presentations are eagerly awaited 
Meanwhile, trying to ground sensation with maps and other technical info may be a middle way to create interest.
