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posted by janrinok on Friday May 28 2021, @03:18PM   Printer-friendly
from the Ingenuity's-Wild-Ride dept.

Flying has never been a safe or precise art. Even when it is not on Mars! Latest from the Ingenuity saga, from NASA it's own self.

On the 91st Martian day, or sol, of NASA's Mars 2020 Perseverance rover mission, the Ingenuity Mars Helicopter performed its sixth flight. The flight was designed to expand the flight envelope and demonstrate aerial-imaging capabilities by taking stereo images of a region of interest to the west. Ingenuity was commanded to climb to an altitude of 33 feet (10 meters) before translating 492 feet (150 meters) to the southwest at a ground speed of 9 mph (4 meters per second). At that point, it was to translate 49 feet (15 meters) to the south while taking images toward the west, then fly another 164 feet (50 meters) northeast and land.

Telemetry from Flight Six shows that the first 150-meter leg of the flight went off without a hitch. But toward the end of that leg, something happened: Ingenuity began adjusting its velocity and tilting back and forth in an oscillating pattern. This behavior persisted throughout the rest of the flight. Prior to landing safely, onboard sensors indicated the rotorcraft encountered roll and pitch excursions of more than 20 degrees, large control inputs, and spikes in power consumption.

[...] Approximately 54 seconds into the flight, a glitch occurred in the pipeline of images being delivered by the navigation camera. This glitch caused a single image to be lost, but more importantly, it resulted in all later navigation images being delivered with inaccurate timestamps. From this point on, each time the navigation algorithm performed a correction based on a navigation image, it was operating on the basis of incorrect information about when the image was taken. The resulting inconsistencies significantly degraded the information used to fly the helicopter, leading to estimates being constantly "corrected" to account for phantom errors. Large oscillations ensued.

Large oscillations are better than small ones, if the truth be told. Godspeed, Ingenuity!


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  • (Score: 2) by Freeman on Friday May 28 2021, @04:43PM (6 children)

    by Freeman (732) on Friday May 28 2021, @04:43PM (#1139726) Journal

    Also, isn't this a duplicate of the story just a couple stories down?

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  • (Score: 3, Funny) by PiMuNu on Friday May 28 2021, @05:05PM

    by PiMuNu (3823) on Friday May 28 2021, @05:05PM (#1139738)

    A glitch occurred in the pipeline of stories causing one to be lost.

  • (Score: -1, Flamebait) by Anonymous Coward on Friday May 28 2021, @06:58PM (3 children)

    by Anonymous Coward on Friday May 28 2021, @06:58PM (#1139798)

    This is just another instance of Aristarchus trying to do Runaway better than Runaway.

    • (Score: -1, Offtopic) by Anonymous Coward on Friday May 28 2021, @08:47PM (2 children)

      by Anonymous Coward on Friday May 28 2021, @08:47PM (#1139830)

      Flamebait? Must have hurt some moderator's fee-feez.

      • (Score: 0) by Anonymous Coward on Friday May 28 2021, @10:28PM (1 child)

        by Anonymous Coward on Friday May 28 2021, @10:28PM (#1139867)

        indeed, this sub predates the other.

        • (Score: 0) by Anonymous Coward on Friday May 28 2021, @10:49PM

          by Anonymous Coward on Friday May 28 2021, @10:49PM (#1139871)

          Not to mention the difference between a finely crafted aristarchus submission, and a slapdash copypasta URL IRC sub, which is more work for our hardworking and overworked editors!

  • (Score: 2) by aristarchus on Saturday May 29 2021, @01:58AM

    by aristarchus (2645) on Saturday May 29 2021, @01:58AM (#1139905) Journal

    At least it got in before the Verge headline: NASA’s Mars helicopter had a midair brain fart [theverge.com].

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