65dBnoise,
@65dBnoise@mastodon.social avatar

Another sol, another drive for #Perseverance. The rover is approaching the northern edge of the rocky Margin Unit, getting closer to where #Ingenuity is located after its eventful #Flight72, but it still has no line-of-sight to the #MarsHelicopter. It may be in a better position for a first look in a sol or two, as seen in the visibility plot below.

The path shown is a guess.

The maps were made with #QGIS using data from #NASA's #MMGIS, #USGS and #HiRISE

#Mars2020 #Solarocks #SPace

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

For #Ingenuity fans only 😀 , here are three locations that #Perseverance could reach in the next 1, 2 or 3 sols, if it doesn't stop for other reasons, and if its AutoNav software behaves itself 😎

Green areas should have line-of-sight to the #MarsHelicopter. Distances from the heli are marked in blue.

#NASA #Mars2020 #Solarocks #Space

stim3on,
@stim3on@fosstodon.org avatar

@65dBnoise did you try to calculate how large Ingenuity would appear at the closest possible approach in a Mastcam 110mm or SuperCam image?

65dBnoise,
@65dBnoise@mastodon.social avatar

@stim3on
No.

stim3on,
@stim3on@fosstodon.org avatar

@65dBnoise The only good comparison I could find is this image from 120m distance:
https://mars.nasa.gov/mars2020/multimedia/raw-images/ZR0_0728_0731575354_332EBY_N0360000ZCAM05139_1100LMJ

The closest likely approach may be about 330m, so Ingenuity will be a lot smaller than the example from Sol 728. Let's wait and see.

Screenshots via https://perseverancerover.spatialstudieslab.org/

image/png

65dBnoise,
@65dBnoise@mastodon.social avatar

@stim3on
Given the 6.2° and 1.08° HFOVs for MCZ (width 1608px) and SUPERCAM (width 2048px), and a distance of ~400m, the horizontal size (1.2m) of the blades, if perpendicular to the incident optical axis, would be 44px and 326px respectively. At an estimated closest approach of 330m, that would be 54px and 395px respectively. It looks like SUPERCAM could provide some useful visual detail.

stim3on,
@stim3on@fosstodon.org avatar

@65dBnoise Thank you! I'm hoping for some clear SuperCam images! This is probably a good time to update my calibration pipeline to work with SuperCam images :)

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

@stim3on
Here is a visual approximation of the MCZ (FL: 110mm) size expected from a distance of ~400m, based on an image of your own:

stim3on,
@stim3on@fosstodon.org avatar

@65dBnoise Yeah that looks plausible.
I'm trying to identify the orientation of Ingenuity and I agree with your assessment that the RTE camera is likely pointed south.
Here is a comparison of visible features between the post Flight72 and Flight70 image. I believe I can identify some peaks from the crater rim which would indicate that RTE is indeed pointing South. It seems likely that Ingenuity is rolled to the left quite a bit, likely due to the sand ripple it's sitting on.

stim3on,
@stim3on@fosstodon.org avatar
stim3on,
@stim3on@fosstodon.org avatar

@65dBnoise A comparison between the post flight image to a screenshot from https://perseverancerover.spatialstudieslab.org/ from roughly the position that is shown on the NASA map checks out.

65dBnoise,
@65dBnoise@mastodon.social avatar

@stim3on
Yeah, it looks plausible. What's the orientation angle for the image from spatialstudies?

stim3on,
@stim3on@fosstodon.org avatar

@65dBnoise Since this area is in the top right corner of the RTE image, Ingenuity would look pretty much exactly towards South.

65dBnoise,
@65dBnoise@mastodon.social avatar

@stim3on
That means that at some point after closest approach, #Ingenuity may be lucky enough to capture #Perseverance in the right top corner of an RTE image. 😀

stim3on,
@stim3on@fosstodon.org avatar

@65dBnoise Ohh haha I didn't even consider that, but yeah we might get a few pixels worth of Perseverance from the RTE camera! 😎

65dBnoise,
@65dBnoise@mastodon.social avatar

@stim3on
There is always something more to expect from #Ingenuity 😀. Even when it finally dies, if it ever does die 🙃, we'll be finding it in new #HiRISE imagery saying hello to us 😆

Legends never die.

jesusmargar,
@jesusmargar@mastodon.social avatar

@65dBnoise how do you get this info on where they are?

65dBnoise,
@65dBnoise@mastodon.social avatar

@jesusmargar
Have a look in the first pinned post in my profile.

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