The Jaxson

Community => Science and Technology => Topic started by: BridgeTroll on June 21, 2020, 08:30:43 AM

Title: Perseverance Mars Rover
Post by: BridgeTroll on June 21, 2020, 08:30:43 AM
I have followed and posted about the Mars rover program for years and am super excited about the launch of Perseverance in July.  Below is a link to a really good primer of the launch, entry, descent and landing, landing site, instrumentation.

Jezero crater appears to be a ancient flood plain with clear and obvious former water channels. One of the most exciting instruments is a helicopter with flights up to 15 feet high, 60 feet in distance and 90 seconds in duration.

Please take a few minutes and click the link below to learn more...  8)

https://www.popularmechanics.com/space/moon-mars/a32894671/nasa-perserverance-rover-2020/
Title: Re: Perseverance Mars Rover
Post by: Charles Hunter on June 21, 2020, 09:07:08 AM
Very cool!  Looking forward to new discoveries.
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on June 21, 2020, 10:30:52 AM
NASA links...

https://mars.nasa.gov/mars2020/

Mars helicopter Ingenuity... https://mars.nasa.gov/technology/helicopter/

https://youtu.be/0RQWv1ybsjM
Title: Re: Perseverance Mars Rover
Post by: Charles Hunter on June 21, 2020, 12:01:30 PM
I watched the helicopter deployment video, and have a question.
It shows the protective panel dropping, then the 'copter being flipped over and dropped to the surface. Does that rotation move the helicopter out from under the lander? Otherwise, it would drop on that cowling, and taking off would be harder.
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on June 21, 2020, 02:11:05 PM
Good question. I don’t know but the copter is supposed to fly multiple times so my guess is it reloads onto the rover
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on June 24, 2020, 07:01:33 AM
Good question. I don’t know but the copter is supposed to fly multiple times so my guess is it reloads onto the rover

It flies multiple times but does not come back to the rover.   Great article describing the research and testing of the helicopter...

https://dnyuz.com/2020/06/23/nasa-mars-helicopter-will-be-red-planets-wright-brothers-moment/
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on July 01, 2020, 08:01:44 AM
Two week delay...

https://spaceflightnow.com/2020/06/30/nasa-delays-mars-rover-launch-to-no-earlier-than-july-30/
Title: Re: Perseverance Mars Rover
Post by: marcuscnelson on July 01, 2020, 10:03:50 AM
Damn. As long as it helps them get it right.
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on July 11, 2020, 07:16:15 AM
Slowly but surely...  8)

https://spaceflightnow.com/2020/07/09/mars-rover-mated-with-atlas-5-launcher-after-teams-deal-with-coronavirus-cases/
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on July 18, 2020, 06:29:29 PM
Great video comparing previous rovers and their capabilities with Perseverance...  8)

https://youtu.be/95hMM2u6Fgw
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on July 22, 2020, 02:50:48 PM
UAE launched their rover this past Sunday... China is next...

https://spaceflightnow.com/2020/07/21/china-moves-massive-rocket-into-place-for-ambitious-mars-shot/
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on July 27, 2020, 07:57:13 AM
The Chinese launch was successful... Perseverance due to launch July 30. The link contains a great description of the Chinese mission...

https://spaceflightnow.com/2020/07/23/china-launches-robotic-mission-to-orbit-land-and-drive-on-mars/
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on July 28, 2020, 08:02:49 AM
Weather looks good for Thursday morning launch... 8)

https://spaceflightnow.com/2020/07/27/good-weather-predicted-for-nasas-mars-rover-launch-thursday/
Title: Re: Perseverance Mars Rover
Post by: JeffreyS on July 28, 2020, 10:32:18 AM
I am guessing a second mission helps with getting the samples back to earth? Am I reading the sample collection goals correct? Very exciting mission.
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on July 28, 2020, 05:00:24 PM
I am guessing a second mission helps with getting the samples back to earth? Am I reading the sample collection goals correct? Very exciting mission.

My excitement is  for the helicopter... wayyyyy too cool...
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on July 29, 2020, 08:09:20 AM
NASA’s Perseverance rover is set for launch Thursday from Cape Canaveral during a two-hour window opening at 7:50 a.m. EDT (1150 GMT). A United Launch Alliance Atlas 5 rocket will fire spacecraft away from Earth with a relative velocity of 24,785 mph, or about 11 kilometers per second.

That’s enough speed to break free of Earth’s gravitational grip and speed toward Mars, aiming for the point in space where the Red Planet will be Feb. 18, 2021, the Mars 2020 mission’s designated landing date.
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on July 30, 2020, 01:30:57 PM
War of the Worlds  reversed... If you were a Martian looking towards earth today you might see three separate rockets headed for your planet...  :D

The USA joined China and UAE with a probe to Mars today... all should arrive around February...
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on August 12, 2020, 01:04:43 PM
Cool video of launch from the rocket...  8)

https://www.youtube.com/v/NAkEOHhYuSo

Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on November 21, 2020, 07:59:36 AM
100 days until landing...  8)

https://www.space.com/mars-rover-perseverance-100-days-landing
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on January 13, 2021, 07:59:47 AM
February 18...

https://youtu.be/rzmd7RouGrM
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on February 10, 2021, 05:38:22 PM
UAE and China have arrived at Mars and are successfully orbiting... Perseverance arrives in a week and will bypass orbiting and go straight to the landing site...
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on February 16, 2021, 07:19:10 AM
The landing is Thursday afternoon... live coverage begins at 2:15 on NASA TV, nasa.gov, or space.com
Title: Re: Perseverance Mars Rover
Post by: Jason on February 16, 2021, 11:21:13 AM
I can't wait to see this landing.  Thank you again for keeping this thread updated BT!
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on February 17, 2021, 06:28:25 AM
I can't wait to see this landing.  Thank you again for keeping this thread updated BT!
If successful it will be epic!
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on February 17, 2021, 07:29:51 AM
Krispy Kreme Mars doughnut...  8)

https://www.space.com/perseverance-mars-rover-landing-krispy-kreme-donut
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on February 18, 2021, 03:38:28 PM
Very nervous... vehicle is on its own now...
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on February 18, 2021, 03:53:05 PM
Parachute deployment
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on February 18, 2021, 03:56:56 PM
Wow... safe on ground
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on February 18, 2021, 04:00:36 PM
Already transmitting pictures
Title: Re: Perseverance Mars Rover
Post by: marcuscnelson on February 18, 2021, 05:04:06 PM
That was pretty impressive. Way to go working on this thread BT! Here's to some of us hopefully joining that little (not really) guy on the surface one day!
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on February 18, 2021, 05:44:53 PM
The excitement of the moon and Mars landings is huge for me... I grew up an Apollo junkie and Mars has the same effect for me... it's too bad the country is so blase' about it...
Title: Re: Perseverance Mars Rover
Post by: jaxlongtimer on February 20, 2021, 01:48:02 AM
First picture ever of a landing on an extraterrestrial body.  Perseverance about 6.5 feet before touchdown on the Martian surface:

(https://www.nasa.gov/sites/default/files/styles/full_width/public/thumbnails/image/rover_drop.jpg?itok=Szjpa6ka)

Quote
Incredible new images shared by Perseverance rover after Mars landing

(CNN) After safely landing on the surface of Mars Thursday, NASA's Perseverance rover has sent back a never-before-seen view: what it looks like to land on Mars.

The rover also returned some beautiful postcards of its landing site.

The first image shared during a NASA press conference Friday was "exhilarating" for the team when they received it. It shows the rover nearing the Martian surface during entry, descent and landing. A camera on the descent stage of the spacecraft captured the perspective, something that wasn't possible on previous missions.

"This shot from a camera on my 'jetpack' captures me in midair, just before my wheels touched down," according to a tweet from the Perseverance Twitter account. "The moment that my team dreamed of for years, now a reality. Dare mighty things."

Little dust plumes can be seen kicking up from the Martian surface, stirred by the engines landing the rover when it was just 6.5 feet above the surface.

"The team is overwhelmed with excitement and joy to have successfully landed another rover on the surface of Mars," said Adam Steltzner, the rover's chief engineer. "When we do such investments, we do them for humanity, and we do them as a gesture of our humanity."

Steltzner cited iconic space images from the Apollo mission, like Buzz Aldrin on the surface of the moon, Voyager's first image of Saturn and the Hubble Space Telescope's awe-inspiring "Pillars of Creation" photo.

"We can only hope, in our efforts to engineer spacecraft and explore our solar system, that we might be able contribute yet another iconic image to this collection, and I'm happy to say that I'm hopeful that today we can with this."

While the first images returned by the rover Thursday evening were black and white glimpses showing it safely landed on Mars, color images made available Friday show the characteristic red color of the Martian surface.


(https://cdn.cnn.com/cnnnext/dam/assets/210219133901-perseverance-first-color-image-lead-exlarge-169.jpg)

"An open horizon, with so much to explore. Can't wait to get going," the Perseverance account tweeted.

Rocks are also seen scattered across the flat surface of the landing site in Jezero Crater, but they're small when compared to the large rover wheels.

(https://cdn.cnn.com/cnnnext/dam/assets/210219133818-perserverance-rock-holes-exlarge-169.jpg)

Another tweet with the image read, "I love rocks. Look at these right next to my wheel. Are they volcanic or sedimentary? What story do they tell? Can't wait to find out."

The Mars Reconnaissance Orbiter's HiRISE camera, which flew over the landing site as Perseverance was coming in for a landing, captured an incredible view as the spacecraft's parachutes opened.

(https://cdn.cnn.com/cnnnext/dam/assets/210219134046-perseverance-hirise-landing-exlarge-169.jpeg)

"The Beauty of Flight! HiRISE captured this image of @NASAPersevere on its way to the landing site from over 700 km (435 mi) away!" the HiRISE account tweeted.

"If you look below to the little circle, this was our eventual touchdown point," said Aaron Stehura, deputy phase lead for entry, descent and landing. "You can see it's near the river delta that we've talked about."

Stehura also reflected on the moment the team saw the image of the rover from the perspective of the descent stage.

"This is something that we've never seen before. It was stunning and the team was awestruck. And, you know, there's just a feeling of victory that we're able to capture these and share them with the world."

The teams also shared a little insight about how they celebrated after the landing. Some members of the team enjoyed some ice cream at safe social distances outside, many virtual parties were enjoyed and team members slept the best they have in a long time, knowing Perseverance was safe....

https://www.cnn.com/2021/02/19/world/mars-rover-new-images-scn-trnd/index.html (https://www.cnn.com/2021/02/19/world/mars-rover-new-images-scn-trnd/index.html)
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on February 20, 2021, 08:11:04 AM
Thanks for posting JLT!  Ingenuity has checked in...

Mission controllers at NASA’s Jet Propulsion Laboratory in Southern California have received the first status report from the Ingenuity Mars Helicopter, which landed Feb. 18, 2021, at Jezero Crater attached to the belly of the agency’s Mars 2020 Perseverance rover. The downlink, which arrived at 3:30 p.m. PST (6:30 p.m. EST) via a connection through the Mars Reconnaissance Orbiter, indicates that both the helicopter, which will remain attached to the rover for 30 to 60 days, and its base station (an electrical box on the rover that stores and routes communications between the rotorcraft and Earth) are operating as expected.

https://mars.nasa.gov/news/8867/nasas-mars-helicopter-reports-in/
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on February 23, 2021, 06:30:24 AM
Here is video from the Lander descent and landing including parachute deployment...  8)

https://mars.nasa.gov/mars2020/multimedia/videos/?v=461
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on February 23, 2021, 06:43:00 AM
The rover has already beamed back over 4000 pictures.
This is the link to the NASA Perseverance update site... lots of great stuff...

https://mars.nasa.gov/resources/25622/perseverance-navcams-360-degree-panorama/

Her is 360 degree panorama ...

https://mars.nasa.gov/resources/25622/perseverance-navcams-360-degree-panorama/
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on February 24, 2021, 08:19:22 AM
This link shows rover's exact location and going forward will chart it's progress... it is interactive... 8)

https://mars.nasa.gov/mars2020/mission/where-is-the-rover/
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on February 26, 2021, 07:18:00 AM
Send your name to Perseverance along with 11 million people... my moniker is eched on Perseverance along with Spirit, Opportunity,  and Curiosity ...  8)

https://mars.nasa.gov/news/8872/nearly-11-million-names-of-earthlings-are-on-mars-perseverance/
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on March 06, 2021, 07:35:17 AM
(https://mars.nasa.gov/system/resources/detail_files/25691_3-PIA24340-NavCam-Left-800.gif)

(https://mars.nasa.gov/system/resources/detail_files/25690_2-PIA24338-800.gif)
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on March 06, 2021, 07:40:25 AM
(https://mars.nasa.gov/system/resources/detail_files/25700_PIA24486-Drive-Map.png)

March 05, 2021

This image shows two possible routes (blue and purple) to the fan-shaped deposit of sediments known as a delta for NASA’s Perseverance rover, which landed at the spot marked with a white dot in Mars’ Jezero Crater. The yellow line marks a notional traverse exploring the delta. The base image is from the High Resolution Imaging Experiment (HiRISE) camera aboard NASA’s Mars Reconnaissance Orbiter (MRO).
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on March 18, 2021, 07:32:07 AM
Helicopter flights beginning the first week of April...  8)
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on March 23, 2021, 07:32:49 AM
Protective shield dropped exposing Ingenuity... rover will then move to launch site and deploy copter...

Video shows entire process...

https://www.space.com/mars-perseverance-rover-helicopter-ingenuity-unveiled?jwsource=cl
Title: Re: Perseverance Mars Rover
Post by: Jason on March 23, 2021, 08:42:53 AM
Can't wait!!!
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on March 23, 2021, 02:05:13 PM
I'm a little bit miffed by NASA's coverage of Perseverance. I actually get more up to date information from third party sites like space.com...
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on March 24, 2021, 07:53:02 AM
Map of Ingenuity Helicopter Flight Zone: This image shows where NASA’s Ingenuity Mars Helicopter will take its test flights. Helicopter engineers added the locations for the rover landing site, the airfield, and the flight zone.

(https://mars.nasa.gov/system/resources/detail_files/25744_PIA24494-1200.jpg)

Van Zyl Overlook: The location where NASA’s Perseverance rover will observe Ingenuity’s attempt at powered controlled flight at Mars is called "Van Zyl Overlook."

(https://mars.nasa.gov/system/resources/detail_files/25745_PIA24435-1200.jpg)

The link below is the entire article explaining the detailed steps before, during, and after the first flight attempt.

https://mars.nasa.gov/news/8896/nasa-ingenuity-mars-helicopter-prepares-for-first-flight/
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on March 31, 2021, 07:01:36 AM
While information regarding the Ingenuity deployment is sparse NASA publishes raw photos from the rover showing the copter fully extented and ready to be dropped from the rover.

(https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/00039/ids/edr/browse/shrlc/SI1_0039_0670409192_132ECM_N0031392SRLC07000_000085J01_800.jpg)

Partially deployed...

(https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/00037/ids/edr/browse/shrlc/SIF_0037_0670232368_148EBY_N0031392SRLC07020_0000LUJ01_800.jpg)

Here is a link to all raw photos...

https://mars.nasa.gov/mars2020/multimedia/raw-images/
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on April 01, 2021, 07:25:13 AM
A small piece of the Wright Flyer is attached to Ingenuity...

Quote
A tiny piece of the Wright brothers' history-making plane will take to the skies on Mars a few weeks from now, if all goes according to plan.

NASA's Mars Helicopter Ingenuity, which could lift off on the Red Planet as soon as April 8, bears a tiny swatch of fabric from one wing of Flyer 1, the plane that in December 1903 made the first powered flights on Earth, agency officials announced Tuesday (March 23).

The Wright brothers ushered in "aerial mobility as a dimension for us to be able to travel here on Earth," Bob Balaram, Ingenuity chief engineer at NASA's Jet Propulsion Laboratory (JPL) in Southern California, said during a news conference Tuesday. "In the same way, we are hoping that Ingenuity also allows us to expand and open up aerial mobility on Mars."

The Flyer 1 swatch, which is about the size of a postage stamp, is attached to a small cable beneath Ingenuity's solar panel, Balaram added.
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on April 02, 2021, 08:50:24 AM
Not sure why, but they are pushing the date for the first flight to April 11... Meanwhile... here is an interesting interview with the woman lead engineer Mimi Aung...

https://astronomy.com/news/2021/04/the-inside-story-behind-the-historic-first-flight-on-mars
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on April 04, 2021, 08:00:47 AM
Ingenuity has been dropped to the surface...

https://www.space.com/mars-helicopter-ingenuity-touches-down-martian-surface

Quote
The first helicopter on Mars is officially on Martian soil.

NASA's Mars helicopter Ingenuity touched down on the surface of the Red Planet after being dropped by its mother ship, the Perseverance rover, the space agency announced late Saturday (April 4). The helicopter's first flight is just over a week away.

"#MarsHelicopter touchdown confirmed! Its 293 million mile (471 million km) journey aboard @NASAPersevere ended with the final drop of 4 inches (10 cm) from the rover's belly to the surface of Mars today," officials with NASA's Jet Propulsion Laboratory in Pasadena, California wrote in a Twitter announcement. "Next milestone? Survive the night."

(https://cdn.mos.cms.futurecdn.net/6mKj5usCoVdZ9JBvBJAHYW-970-80.jpg.webp)

(https://cdn.mos.cms.futurecdn.net/zSt9vsGtrApuFiN5oM6cfW-970-80.jpg.webp)

(https://cdn.mos.cms.futurecdn.net/92g7M6WDvs7EjNaX2d7tMW-970-80.jpg.webp)
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on April 06, 2021, 07:17:22 AM
First night alone... and survived...

https://mars.nasa.gov/news/8906/nasas-mars-helicopter-survives-first-cold-martian-night-on-its-own/
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on April 07, 2021, 07:04:32 AM
(https://mars.nasa.gov/system/resources/detail_files/25784_1-PIA24547-Mastcam-Z-Gives-Ingenuity-a-Close-up-web.jpg)
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on April 08, 2021, 08:18:45 AM
Selfie... with Ingenuity  8)

(https://mars.nasa.gov/system/resources/detail_files/25790_First_selfie-1200.gif)
Title: Re: Perseverance Mars Rover
Post by: Jason on April 08, 2021, 11:55:03 AM
This maiden flight is going to be EPIC!!!  :-O
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on April 08, 2021, 01:25:32 PM
This maiden flight is going to be EPIC!!!  :-O
Fingers crossed...
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on April 09, 2021, 07:40:59 AM
The rover has driven a short distance from the copter... can you spot it in this photo?   :)

(https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/00048/ids/edr/browse/ncam/NLF_0048_0671209093_534ECM_N0031850NCAM00406_01_195J01_800.jpg)
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on April 10, 2021, 09:00:00 AM
Passed the spin test... flying Sunday.

(https://mars.nasa.gov/system/resources/list_images/25796_heli-movement-far-320x240.gif)

Quote
Events leading up to the first flight test begin when the Perseverance rover, which serves as a communications base station for Ingenuity, receives that day’s instructions from Earth. Those commands will have traveled from mission controllers at JPL through NASA’s Deep Space Network to a receiving antenna aboard Perseverance. Parked at “Van Zyl Overlook,” some 215 feet (65 meters) away, the rover will transmit the commands to the helicopter about an hour later.

Then, at 10:53 p.m. EDT (7:53 p.m. PDT), Ingenuity will begin undergoing its myriad preflight checks. The helicopter will repeat the blade-wiggle test it performed three sols prior. If the algorithms running the guidance, navigation, and control systems deem the test results acceptable, they will turn on the inertial measurement unit (an electronic device that measures a vehicle’s orientation and rotation) and inclinometer (which measures slopes). If everything checks out, the helicopter will again adjust the pitch of its rotor blades, configuring them so they don’t produce lift during the early portion of the spin-up.

NASA’s Ingenuity helicopter does a slow spin test of its blades, on April 8, 2021, the 48th Martian day, or sol, of the mission. This image was captured by the Navigation Cameras on NASA’s Perseverance Mars rover.
Ingenuity Begins to Spin Its Blades: NASA’s Ingenuity helicopter does a slow spin test of its blades, on April 8, 2021, the 48th Martian day, or sol, of the mission. This image was captured by the Navigation Cameras on NASA’s Perseverance Mars rover. Credits: NASA/JPL-Caltech/ASU. Full image and caption ›
The spin-up of the rotor blades will take about 12 seconds to go from 0 to 2,537 rpm, the optimal speed for the first flight. After a final systems check, the pitch of the rotor blades will be commanded to change yet again – this time so they can dig into those few molecules of carbon dioxide, nitrogen, and argon available in the atmosphere near the Martian surface. Moments later, the first experimental flight test on another planet will begin.

“It should take us about six seconds to climb to our maximum height for this first flight,” said JPL’s Håvard Grip, the flight control lead for Ingenuity. “When we hit 10 feet, Ingenuity will go into a hover that should last – if all goes well – for about 30 seconds.”

While hovering, the helicopter’s navigation camera and laser altimeter will feed information into the navigation computer to ensure Ingenuity remains not only level, but in the middle of its 33-by-33-foot (10-by-10-meter) airfield – a patch of Martian real estate chosen for its flatness and lack of obstructions. Then, the Mars Helicopter will descend and touch back down on the surface of Jezero Crater, sending data back to Earth, via Perseverance, to confirm the flight.
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on April 10, 2021, 05:24:26 PM
Weather looks good for tomorrow's flight...

https://mars.nasa.gov/mars2020/weather/
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on April 11, 2021, 08:28:41 AM
 :( Disappointed but not unexpected...

Quote
Based on data from the Ingenuity Mars helicopter that arrived late Friday night, NASA has chosen to reschedule the Ingenuity Mars Helicopter’s first experimental flight to no earlier than April 14.

During a high-speed spin test of the rotors on Friday, the command sequence controlling the test ended early due to a “watchdog” timer expiration. This occurred as it was trying to transition the flight computer from ‘Pre-Flight’ to ‘Flight’ mode. The helicopter is safe and healthy and communicated its full telemetry set to Earth.

The watchdog timer oversees the command sequence and alerts the system to any potential issues. It helps the system stay safe by not proceeding if an issue is observed and worked as planned.

The helicopter team is reviewing telemetry to diagnose and understand the issue. Following that, they will reschedule the full-speed test.
Title: Re: Perseverance Mars Rover
Post by: Charles Hunter on April 11, 2021, 09:20:50 AM
"Your connection has timed out. Please try again."
Title: Re: Perseverance Mars Rover
Post by: BridgeTroll on April 13, 2021, 07:45:05 AM
Software glitch requiring a reload... flight next week...

Quote
The Ingenuity team has identified a software solution for the command sequence issue identified on Sol 49 (April 9) during a planned high-speed spin-up test of the helicopter’s rotors. Over the weekend, the team considered and tested multiple potential solutions to this issue, concluding that minor modification and reinstallation of Ingenuity’s flight control software is the most robust path forward. This software update will modify the process by which the two flight controllers boot up, allowing the hardware and software to safely transition to the flight state. Modifications to the flight software are being independently reviewed and validated today and tomorrow in testbeds at JPL.

While the development of the new software change is straightforward, the process of validating it and completing its uplink to Ingenuity will take some time. A detailed timeline for rescheduling the high-speed spin-up test and first flight is still in process. The process of updating Ingenuity’s flight control software will follow established processes for validation with careful and deliberate steps to move the new software through the rover to the base station and then to the helicopter. Intermediate milestones include:

• Diagnose the issue and develop potential solutions
• Develop/validate and upload software
• Load flight software onto flight controllers
• Boot Ingenuity on new flight software

Once we have passed these milestones, we will prepare Ingenuity for its first flight, which will take several sols, or Mars days. Our best estimate of a targeted flight date is fluid right now, but we are working toward achieving these milestones and will set a flight date next week. We are confident in the team’s ability to work through this challenge and prepare for Ingenuity’s historic first controlled powered flight on another planet.

Ingenuity continues to be healthy on the surface on Mars. Critical functions such as power, communications, and thermal control are stable. It is not unexpected for a technology demonstration like this to encounter challenges that need to be worked in real time. The high-risk, high-reward approach we have taken to the first powered, controlled flight on another planet allows us to push the performance envelope in ways we could not with a mission designed to last for years such as Perseverance. In the meantime, while the Ingenuity team does its work, Perseverance will continue to do science with its suite of instruments and is gearing up for a test of the MOXIE technology demonstration.