paulhammond5155@lemmy.world to NASA's Perseverance Mars Rover@lemmy.worldEnglish · 3 个月前Long drive on April 19, 2026 (Sol 1835)lemmy.worldimagemessage-square4linkfedilinkarrow-up163file-text
arrow-up163imageLong drive on April 19, 2026 (Sol 1835)lemmy.worldpaulhammond5155@lemmy.world to NASA's Perseverance Mars Rover@lemmy.worldEnglish · 3 个月前message-square4linkfedilinkfile-text
Looking back at its wheel tracks after a long drive ~ENE Tiled post-drive NavCam image Image credits: NASA/JPL-Caltech
minus-squarepatchedsoul@lemmy.worldlinkfedilinkEnglisharrow-up3·3 个月前why does it look like a bird is flying in the very far background?
minus-squarepaulhammond5155@lemmy.worldOPlinkfedilinkEnglisharrow-up4·3 个月前 why does it look like a bird is flying in the very far background? It’s a small group of dead pixels on the left side NavCam camera (L-NavCam) We only usually see those when that section of the upper left tile of a 4 tile NavCam captures the sky Here are a pair of raw upper left NavCam tiles from Sols 1833 and 1835 that I have annotated, note the dead pixels in the same location in the sky. If you go back through the image server you’ll find the same dead pixels on L-NavCam images, I’ve include an example from December 13, 2023 (Sol 1000)
why does it look like a bird is flying in the very far background?
It’s a small group of dead pixels on the left side NavCam camera (L-NavCam)
We only usually see those when that section of the upper left tile of a 4 tile NavCam captures the sky
Here are a pair of raw upper left NavCam tiles from Sols 1833 and 1835 that I have annotated, note the dead pixels in the same location in the sky.
If you go back through the image server you’ll find the same dead pixels on L-NavCam images, I’ve include an example from December 13, 2023 (Sol 1000)