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More model information3-dimensional reconstruction of Ingenuity’s fourth flight, using a recently released video from NASA/JPL-Caltech. The black-white surface model was generated with photogrammetry using the mentioned gif from Ingenuity’s NAVCam. Then the extracted camera positions were used to animate the flight path of the helicopter.
You can also see the Perseverance rover at its current position, and an outline of Ingenuity’s flight zone superimposed on the terrain. (White dot in the square marks the takeoff/landing location)
Credits:
Ingenuity NAVCam gif: NASA/JPL-Caltech
Ingenuity 3D model: NASA/JPL-Caltech
Perseverance 3D-model: NASA/JPL-Caltech/Ryan Kinnett
Digital Elevation Model of Jezero Crater: HiRISE: NASA/JPL-Caltech/University of Arizona
Terrain image from Perseverance RDC video: NASA/JPL-Caltech
May 7th 2021
11 comments
@jumpjack I imagine that they are on a very tight schedule, trying to keep up with the rover operations while only having limited up/downlink capacity.
So they likely have to keep their operations to a minimum. They said that they scout new landing sites with the help of HiRISE imagery, which has a resolution of 25cm/px, which might not show every rock in the area, but can help identify very sandy patches that likely don't have much in the way of obstacles and should be relatively safe to land.
The last landing site from Sol91 which was scouted in the same way certainly seems quite flat on the HiRISE map: mars.nasa.gov/maps/?mission=M20
Maybe when they have to land in more difficult areas they will pre-scout their landing sites, but for now they probably think its safe enough.
I notified this video to NASA JPL on twitter: I don't understand why they take the risk of landing in unknown places, rather than flying around, take pictures, build a 3d model of terrain and find "offline" the best place to land, prior to sending Ingenuity there. :-)
@jumpjack Yes, the helicopters attitude is likely not accurate. According to every official paper I found, the camera is actually pointing to nadir, but looking at the images it seems to sit at a slight angle. I tried to estimate this but most likely have it wrong due to a variety of reasons. Now that we have access to the raw files and their metadata I should have more information in this area to make the next one better.
Cool job, but probably you forgot that navigation camera is not pointing to nadir, it's inclined, that's why your Ingenuity is always inclinde.
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@bartv Thank you very much! I actually hope to make an even better version if NASA/JPL will release more and longer flight videos.
I'm pretty certain these exist but they are unfortunately very slow with sharing data from that mission...
I'm also staff picking it. It's a great scientific illustration, thanks for sharing!
@bartv Thanks!
I featured you on BlenderNation, have a great week!
blendernation.com/2021/05/10/the-best-bl...