Speaking Of Dropped Data... That Cute Lil' Mars Copter Made A "Fail-Safe" Early Landing On Flight 53... All Is Well, Though

So it is not just on Earth (and terrestrial in flight nav systems) that a bit of dropped data may cause some. . . disorder. It happened on Barsoom, in July.

But the fail-safes all worked flawlessly, and now as of August 3, it seems the 'copter is ready for regular science operations, again. Here's the bit (but do expect solar flare related data drops, today on Jasoom):

. . .NASA’s Ingenuity Mars Helicopter successfully completed its 54th flight on Aug. 3, the first flight since the helicopter cut its July 22 flight short. The 25-second up-and-down hop provided data that could help the Ingenuity team determine why its 53rd flight ended early.

Flight 53 was planned as a 136-second scouting flight dedicated to collecting imagery of the planet’s surface for the Perseverance Mars rover science team. The complicated flight profile included flying north 666 feet (203 meters) at an altitude of 16 feet (5 meters) and a speed of 5.6 mph (2.5 meters per second), then descending vertically to 8 feet (2.5 meters), where it would hover and obtain imagery of a rocky outcrop. Ingenuity would then climb straight up to 33 feet (10 meters) to allow its hazard divert system to initiate before descending vertically to touch down.

Instead, the helicopter executed the first half of its autonomous journey, flying north at an altitude of 16 feet (5 meters) for 466 feet (142 meters). Then a flight-contingency program was triggered, and Ingenuity automatically landed. The total flight time was 74 seconds.

“Since the very first flight we have included a program called ‘LAND_NOW’ that was designed to put the helicopter on the surface as soon as possible if any one of a few dozen off-nominal scenarios was encountered,” said Teddy Tzanetos, team lead emeritus for Ingenuity at NASA’s Jet Propulsion Laboratory in Southern California. “During Flight 53, we encountered one of these, and the helicopter worked as planned and executed an immediate landing.”

The Ingenuity team is confident that the early landing was triggered when image frames from the helicopter’s navigation camera didn’t sync up as expected with data from the rotorcraft’s inertial measurement unit. The unit measures Ingenuity’s acceleration and rotational rates – data that makes it possible to estimate where the helicopter is, how fast it is moving, and how it is oriented in space. . . .

So -- all is well that ends. . . well, said the Bard. He was right. And as to that hotel re-opening, we are not even remotely. . . at the end, yet. Smile. . . .



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