Departing the Vacuousness
Started by Ecurb Noselrub, February 18, 2021, 10:13:54 PM
Quote from: Randy on February 20, 2021, 01:53:11 AMI didn't even realize it until today that the landing happened. I don't know how I missed it. I had been reading an article about it today and all the stunts it had to pull to make a successful landing like that is mind boggling.
Quote from: billy rubin on February 24, 2021, 05:48:11 PM
Quote from: billy rubin on February 24, 2021, 06:06:21 PMi still can't figure out why we're going there. at least it doesn't cost much money.
QuoteThe Ingenuity helicopter just achieved a huge milestone on Mars. The little chopper successfully completed its record-breaking 50th flight on Thursday, a few days shy of the second anniversary of its first aerial journey.Ingenuity flew for the first time on Mars on April 19, 2021, reaching a height of 10 feet (3 meters) and hovering for about half a minute before touching back down. That 39-second trip marked the first powered, controlled flight of a rotorcraft on another planet.Since then, Ingenuity has surpassed all expectations, transitioning from a technology demonstration designed for five flights to an aerial scout for the Perseverance rover as it explores an ancient lake and river delta on Mars.During its 50th flight, Ingenuity traveled over 1,057 feet (322.2 meters) in 145.7 seconds and achieved a new altitude record of 59 feet (18 meters). The chopper touched down near the 0.5-mile-wide (800-meter-wide) Belva Crater."Just as the Wright brothers continued their experiments well after that momentous day at Kitty Hawk in 1903, the Ingenuity team continues to pursue and learn from the flight operations of the first aircraft on another world," said Lori Glaze, director of the NASA Planetary Science Division, in a statement.Since arriving on Mars with the Perseverance rover in February 2021, Ingenuity has flown for more than 89 minutes and 7.1 miles (11.6 kilometers). That's no mean feat considering that much of the 4-pound (1.8-kilogram) chopper was built using off-the-shelf smartphone processors and cameras."When we first flew, we thought we would be incredibly lucky to eke out five flights," said Teddy Tzanetos, Ingenuity team lead at NASA's Jet Propulsion Laboratory, in a statement. "We have exceeded our expected cumulative flight time since our technology demonstration wrapped by 1,250% and expected distance flown by 2,214%."[Continues . . .]
Quote from: Ecurb Noselrub on July 25, 2013, 08:18:52 PMIn Asmo's grey lump, wrath and dark clouds gather force.Luxembourg trembles.
QuoteNASA has revealed a six-day stretch during which it could not contact its Ingenuity Mars helicopter.In a lengthy post, chief engineer Travis Brown explained that after the copter's 49th flight, radio contact was lost for six sols – just short of six days and six hours of terrestrial time.Initially, NASA's Mars boffins weren't unduly concerned. The Perseverance Rover had moved behind a rocky outcrop that created a "communication shadow." Brown wrote that since Sol 685 the helicopter "had unfortunately been drifting in and out of night-time survival mode" which made daily contact with the craft difficult. So a day or two without contact wasn't worrying.But once Perseverance moved to another location and Ingenuity still could not be found, Brown wrote "the situation began to generate some unease.""Poor telecom performance was seen as a plausible explanation, but there were reasons to doubt it," he wrote. "In more than 700 sols operating the helicopter on Mars, not once had we ever experienced a total radio blackout. Even in the worst communications environments, we had always seen some indication of activity."But the signal received on that day, sol 761, was just a simple ACK (acknowledgement). The next day, the copter again acknowledged a command, but did little else.Mission staff determined that the ridge separating Ingenuity and Perseverance was a challenge for the copter's radio. It didn't help that Perseverance's helicopter base station (HBS) antenna is mounted low on the vehicle's right and is subject to occlusion effects.[. . .]With the rover on the move, and the helicopter stopped, it became imperative to get Ingenuity moving."Relying on the helicopter's onboard pre-flight checks to ensure vehicle safety and banking on solid communications from the rover's imminent proximity, the team uplinked the flight plan," Brown wrote.Ingenuity did more than just ACK that upload. It ingested and executed it, resulting in its 50th flight and an altitude record of 18 meters."It would be an understatement to say that the helicopter team was relieved to see the successful flight telemetry in the Sol 763 downlink the following morning," Brown wrote.But he added that anxious days lie ahead."It now appears that the dust covering our solar panel will ensure that Ingenuity will likely remain in this transitional power state for some time," he wrote. "This means that, much to the chagrin of her team, we are not yet done playing this high-stakes game of hide and seek with the playful little helicopter."[Continues . . .]