Tag: Perseverance

Next Ingenuity flight to push envelope significantly

11:20 am

Ingenuity's 9th flight plan
Click for full image.

The engineers running the Mars helicopter Ingenuity revealed today that they will be attempting their most ambitious flight for the helicopter’s ninth flight, presently scheduled for no earlier than July 4th.

I have annotated the map to the right to show Ingenuity’s present position and its approximate landing area.

Without question this flight will be the riskiest taken by Ingenuity so far, more than doubling the flight distance achieved on any previous flight. More important, it will be flying over terrain far rougher than it was initially designed for.
» Read more

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Perseverance’s most recent view of Jezero Crater

10:30 am

Panorama by Perseverance, Sol 130, July 2, 2021
Click for full resolution.

Overview map
Click for interactive map.

Cool image time! The panorama above, reduced to post here, is made from two navigation camera images on the Mars rover Perseverance, found here and here.

The map to the right, taken from the “Where is Perseverance?” website and annotated further by me, shows with the yellow lines what I think (but am not sure) is the area seen in the panorama.

The navigation cameras on Perseverance are more wide angle than the navigation cameras on Curiosity, in order to cover a larger area. They thus produce a slight fisheye distortion, illustrated by the curve of the horizon.

The large mountain in the center right is likely the crater rim. You can also see the knobs to the left as indicated on the overview map. The rover is now about halfway to the southernmost planned spot it is expected to reach within the floor of Jezero Crater, which is about a half to three quarters of a mile further south.

The terrain seems quite desolate and barren, which of course is no surprise, because that is what it is like on all of the surface of Mars. No plant life, just rocks and dirt. While Curiosity is now in the mountains, Perseverance remains on the crater floor, so the points of interest (from the mere tourist’s perspective) are small or far away.

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Ingenuity completes 8th flight, moving south with Perseverance

10:19 am

Perservance's location, June 17, 2021
Click for interactive map.

On June 21, 2021 the Mars helicopter Ingenuity successfully completed its eighth flight, leapfrogging south past the rover Perseverance.

During the flight, Ingenuity remained aloft for 77.4 seconds, flew 525 feet (160 meters), and landed about 440 feet (133.5 m) away from its companion, the Perseverance rover, according to a tweet from NASA’s Jet Propulsion Laboratory in California, which operates the helicopter.

The map to the right, annotated by me from the interactive map provided by the Perseverance team, shows the helicopter’s approximate new position, labeled #8 in green. The other green numbers show its previous landing spots after earlier flights.

The white line shows Perseverance’s travels through June 17th. The yellow dashed line shows their planned route over the next few months. Perseverance was just slightly north of Ingenuity on that date. It has likely traveled further south since then.

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Update on Perseverance’s future travel plans

10:47 am

Perseverance's future travels
Click for full image.

The science team for the rover Perseverance yesterday released a revised map of where they intend over the next few months to send the rover on the floor of Jezero Crater.

The map to the right, cropped and reduced to post here, shows that route.

The first science campaign (depicted with yellow hash marks) begins with the rover performing an arching drive southward from its landing site to Séítah-North (Séítah-N). At that point the rover will travel west a short distance to an overlook where it can view much of the Séítah unit. The “Séítah-N Overlook” could also become an area of scientific interest – with Perseverance performing a “toe dip” into the unit to collect remote-sensing measurements of geologic targets.

Once its time at the Séítah-N Overlook is complete, Perseverance will head east, then south toward a spot where the science team can study the Crater Floor Fractured Rough in greater detail. The first core sample collected by the mission will also take place at this location. After Cratered Floor Fractured Rough, the Perseverance rover team will evaluate whether additional exploration (depicted with light-yellow hash marks) farther south – and then west – is warranted.

Whether Perseverance travels beyond the Cratered Floor Fractured Rough during this first science campaign, the rover will eventually retrace its steps. As Perseverance passes the Octavia B. Butler landing site, the first science campaign will conclude. At that point, several months of travel lay ahead as Perseverance makes its way to “Three Forks,” where the second science campaign will begin.

At that point the rover will begin studying the base of the delta of material that in the far past poured through a gap in the western rim of Jezero Crater.

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Ingenuity completes 7th flight on Mars

10:21 pm

Locations of Perseverance and Ingenuity on Mars
Click for interactive map.

Ingenuity yesterday successfully completed its 7th flight on Mars, heading south and landing exactly as planned.

Ingenuity lifted off around 12:34 local mean solar time on Tuesday, which corresponds to 11:54 a.m. EDT (1554 GMT). As planned, the chopper then traveled 348 feet (106 meters) south from its previous location on the floor of Mars’ Jezero Crater, staying aloft for nearly 63 seconds, JPL officials wrote in another tweet. The solar-powered rotorcraft set down at a new airfield, the fourth one it has reached since landing on the Red Planet with NASA’s Perseverance rover on Feb. 18.

Both the rover Perseverance and Ingenuity are traveling south on the floor of Jezero Crater, with the helicopter leapfrogging ahead every few weeks. On the map the red dot indicates Perseverance location, with the green dots Ingenuity’s last three landing sites. They have not yet added to the map exactly where Ingenuity landed yesterday (#7), so I have estimated it based on the information above.

The red outline indicates the region they are planning to explore over the next few months in order to gather a very thorough understanding of the geology of the floor of Jezero Crater. They will eventually head to the northwest towards the cliffs in the upper left, which is the foot of the large delta that flowed in the past into the crater through a gap in its western rim. The route they will take to get there however remains undetermined.

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Ingenuity to make sixth flight next week

9:17 am

Future travels for Perseverance and Ingenuity

The Ingenuity engineering team announced today that the Mars helicopter will make its sixth flight next week, flying to a new landing spot while taking images for the Perseverance science team.

Ingenuity’s flight plan begins with the helicopter ascending to 33 feet (10 meters), then heading southwest for about 492 feet (150 meters). When it achieves that distance, the rotorcraft will begin acquiring color imagery of an area of interest as it translates to the south about 50-66 feet (15-20 meters). Stereo imagery of the sand ripples and outcrops of bright rocks at the site will help demonstrate the value of an aerial perspective for future missions. After completing its image collection, Ingenuity will fly about 164 feet (50 meters) northeast where it will touch down at its new base of operations (known as “Field C”).

The flight will attempt a new speed record of 9 mph, and will also land for the first time in a spot that the helicopter has not scouted beforehand. It will instead be using data from high resolution images from Mars Reconnaissance Orbiter (MRO) combined with its own hazard avoidance system.

Ingenuity will essentially place itself over and in an area where Perseverance plans to go, leapfrogging ahead flight by flight, as shown by the map above (annotated by me from the map available here). The green dot numbered 5 shows the helicopter’s present position, while #6 shows its approximate landing spot after its sixth flight. Perseverance, whose present location is indicated by the blue marker, is generally heading south within the area outlined by the red line, as described during the science team’s an April 30th press conference. The goal in exploring this region is to gain a very robust geological baseline of the floor of Jezero Crater, which scientists believe will be the oldest material the rover should see in its travels.

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Ingenuity completes fifth flight; lands in new location

6:00 pm

On May 7th, 2021 Ingenuity completed its fifth flight on Mars, this time landing at a new location for the first time.

The robot craft took off at ‘Wright Brothers Field’ – the same spot where the it had risen and landed on all its other flights – but landed at an airfield 423 feet (129 metres) to the south. Landing in a new place is another first for the rotorcraft.

This new landing site places the helicopter in a good position to leap frog along with Perseverance as it moves south in this general area studying the floor of Jezero Crater.

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Ingenuity’s fifth flight later today

9:10 am

The flight path of Ingenuity's fourth flight
The flight path of Ingenuity’s 3rd and 4th flights.
Click for original image.

According to Ingenuity’s engineering team, the helicopter will make its fifth flight today, and unlike the previous flights, it will not return to is initial take-off point, but will instead land to the south, putting it in a better position to tag along with Perseverance. As noted by Josh Ravitch, Ingenuity’s mechanical engineering lead at JPL,

We are traveling to a new base because this is the direction Perseverance is going, and if we want to continue to demonstrate what can be done from an aerial perspective, we have to go where the rover goes.

The map to the right show’s the flight paths of Ingenuity’s third and fourth flights, with the fourth heading south. Based on the data obtained they scouted out its likely landing place for the fifth flight.

[The] targeted takeoff time is 12:33 p.m. local Mars time (3:26 p.m. EDT, or 12:26 p.m. PDT), with data coming down at 7:31 p.m. EDT (4:31 p.m. PDT). Ingenuity will take off at Wright Brothers Field – the same spot where the helicopter took off and touched back down on all the other flights – but it will land elsewhere, which is another first for our rotorcraft. Ingenuity will climb to 16 feet (5 meters), then retrace its course from flight four, heading south 423 feet (129 meters).

This April 30th Ingenuity update by Håvard Grip, Ingenuity’s chief pilot, provides a very detailed explanation of what they are learning about flight on Mars, describing issues of take-off, landing, dust, and maneuvering. Engineers (or any geeks in general) will find Grip’s commentary most interesting.

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Ingenuity’s fourth flight today a success

12:37 pm

Ingenuity's 4th flight
For original images, go here, here, here, and here.

As planned, Ingenuity took off early today on Mars at 12:33:20 pm (local Mars time). Data from the full flight has now arrived on Earth, with images that show the helicopter rising, moving about, and then landing. The montage above captures the part of the flight visible from one of Perservance’s cameras.

Apparently Ingenuity was in the air for about two minutes, and landed a bit to the right of its take-off point. We will have to wait for an update from the engineering team to find out exactly what happened.

UPDATE: Mimi Aung, the Ingenuity project manager, posted a report later today:

The helicopter took off at 10:49 a.m. EDT (7:49 a.m. PDT, or 12:33 local Mars time), climbing to an altitude of 16 feet (5 meters) before flying south approximately 436 feet (133 meters) and then back, for an 872-foot (266-meter) round trip. In total, we were in the air for 117 seconds.

The helicopter also took a lot of images, which they are presently in the process of downloading and reviewing.

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Fourth flight of Ingenuity set for today; shifting to operational phase

9:05 am

Ingenuity close-up taken by Perseverance April 28th
Ingenuity close-up taken by Perseverance April 28th

Even as the Ingenuity engineering team will attempt a fourth flight of Ingenuity, JPL announced today that they and NASA have decided to now shift to operational flights, attempting to duplicate the kind of scouting missions that such helicopters will do on future rovers.

The second link takes you to the live stream of the press conference. The press release is here.

Essentially, they will send Ingenuity on a series of scouting missions after this fourth flight, extending its 30 day test program another 30 days. Its engineers will be working with the Perseverance science team to go where those scientists want to send it. After the fourth and fifth test flights they will fly Ingenuity only periodically, separated by weeks, and send it to scout places Perseverance can’t reach, and have it land at new sites that Perseverance scouted out as it travels.

They have decided to do this because they want to spend more time in this area on the floor of Jezero Crater, for several reasons. First, they are still testing the rover to get it to full working operations. Second, they want to obtain some samples for future pickup at this location. Third, they want to spend an extensive amount of time exploring the floor up to a mile south of their present location.

Finally, the relatively flat terrain is perfect for testing and actually using the helicopter as a scout.

Though the extension is for 30 days, and though the helicopter was not built for long term survival, there is no reason it cannot continue indefinitely until something finally breaks.

Right now they are awaiting the data from the fourth flight, which will arrive at 1:39 pm (Eastern) and will be used to determine what the fifth flight will do, probably a week from now.

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Ingenuity fails to take off on 4th flight

2:39 pm

When early today Ingenuity attempted to complete its fourth and most ambitious test flight on Mars the helicopter did not lift off, for reasons that engineers are still investigating.

[JPL] engineers are assessing the data, since it’s not yet clear what caused the failure. One potential cause is a software issue that first showed up during a high-speed spin test ahead of the chopper’s first flight. That test failed because Ingenuity’s flight computer was unable to transition from “pre-flight” to “flight” mode. Within a few days, though, [JPL] engineers resolved the issue with a quick software rewrite.

But those engineers determined that their fix would only successfully transition the helicopter into flight mode 85% of the time. So Thursday’s attempt may have fallen into the 15% of instances in which it doesn’t work.

This flight was supposed to fly south for about 430 feet, take pictures, and then return to its take-off point. If they can trouble-shoot the issue they hope to do another flight quickly. They still have a week left in their 30 day test period.

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Ingenuity’s fourth flight today

9:05 am

The fourth flight of the Mars helicopter Ingenuity has just occurred, with data arriving momentarily.

The fourth Ingenuity flight from Wright Brothers Field, the name for the Martian airfield on which the flight took place, is scheduled to take off Thursday, April 29, at 10:12 a.m. EDT (7:12 a.m. PDT, 12:30 p.m. local Mars time), with the first data expected back at NASA’s Jet Propulsion Laboratory in Southern California at 1:21 p.m. EDT (10:21 a.m. PDT).

…Flight Four sets out to demonstrate the potential value of that aerial perspective. The flight test will begin with Ingenuity climbing to an altitude of 16 feet (5 meters) and then heading south, flying over rocks, sand ripples, and small impact craters for 276 feet (84 meters). As it flies, the rotorcraft will use its downward-looking navigation camera to collect images of the surface every 4 feet (1.2 meters) from that point until it travels a total of 436 feet (133 meters) downrange. Then, Ingenuity will go into a hover and take images with its color camera before heading back to Wright Brothers Field.

Stay tuned for new images. NASA will also hold a press conference tomorrow to outline the results and the rest of Ingenuity’s test program.

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Perseverance as seen by Ingenuity

8:51 am

Perserverance as seen by Ingenuity
Click for full image.

Cool image time! JPL today released the photo to the right, cropped to post here. It was taken by the helicopter Ingenuity during its third flight on April 25th and shows the rover Perseverance at its left edge.

The horizon is tilted because the camera lens is very wide angle to capture as much terrain as possible and thus produces a fisheye curved distortion to the image’s periphery.

This image was taken as Ingenuity flew north about 160 feet away from Perseverance, probably in the first part of its flight as seen by photos taken by Perseverance of Ingenuity during its flight.

The mountains in the distance are the rim of Jezero Crater.

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Ingenuity completes third flight!

9:40 pm

Low resolution montage showing Ingenuity's third flight on Mars, April 25, 2021
Click for full resolution. Individual images can be found, in sequence, here, here, here, and here.

Early today Ingenuity successfully completed its third flight on Mars, traveling a considerable distance north from its taken-off point and then returning almost exactly to that point, as shown by the montage of four Perseverance navigation images above.

You will want to look at the high resolution montage, as the details are much clearer. The large mountains in the background are the rim of Jezero Crater. The smaller plateau in front of these mountains and much closer is the edge of the delta that Perseverance will explore.

According to this NASA press release:

The helicopter took off at 4:31 a.m. EDT (1:31 a.m. PDT), or 12:33 p.m. local Mars time, rising 16 feet (5 meters) – the same altitude as its second flight. Then it zipped downrange 164 feet (50 meters), just over half the length of a football field, reaching a top speed of 6.6 feet per second (2 meters per second).

I have embedded below the fold video of the helicopter’s take off, flight to the north, and then return and landing, created from Perseverance images. Because the camera did not pan the helicopter moves off frame for the middle part of its flight. In the coming days I expect they will assemble a video showing the entire flight.

The fourth flight is now only days away.
» Read more

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Ingenuity’s third flight late tonight

9:40 am

First color image from Ingenuity
Click for full image.

According to Håvard Grip, Ingenuity’s Mars Helicopter Chief, the helicopter’s team is now targeting very early Sunday morning for its third test flight.

For the third flight, we’re targeting the same altitude [as flight two], but we are going to open things up a bit too, increasing our max airspeed from 0.5 meters per second to 2 meters per second (about 4.5 mph) as we head 50 meters (164 feet) north and return to land at Wright Brothers Field. We’re planning for a total flight time of about 80 seconds and a total distance of 100 meters (330 feet).

While that number may not seem like a lot, consider that we never moved laterally more than about two-pencil lengths when we flight-tested in the vacuum chamber here on Earth. And while the 4 meters of lateral movement in Flight Two (2 meters out and then 2 meters back) was great, providing lots of terrific data, it was still only 4 meters. As such, Flight Three is a big step, one in which Ingenuity will begin to experience freedom in the sky.

The picture above was the first color image sent down by Ingenuity, taken during the second test flight when the helicopter was seventeen feet in the air and pitched slightly so that it could look east, toward Perseverance. From the caption:

The winding parallel discolorations in the surface reveal the tread of the six-wheeled rover. Perseverance itself is located top center, just out frame. “Wright Brothers Field” is in the vicinity of the helicopter’s shadow, bottom center, with the actual point of takeoff of the helicopter just below the image. A portion of the landing pads on two of the helicopter’s four landing legs can be seen in on the left and right sides of the image, and a small portion of the horizon can be seen at the upper right and left corners.

The data from tonight’s flight will arrive on Earth at around 7:16 am (Pacific) tomorrow.

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First images of Ingenuity’s second flight

10:01 am

Ingenuity's second flight, April 22, 2021
For full images go here, here, and here.

According to Mimi Aung, the project manager for Ingenuity, they attempted their second flight of the Mars helicopter early this morning, with the following flight plan:

[W]e plan to trying climbing to 16 feet (5 meters) in this flight test. Then, after the helicopter hovers briefly, it will go into a slight tilt and move sideways for 7 feet (2 meters). Then Ingenuity will come to a stop, hover in place, and make turns to point its color camera in different directions before heading back to the center of the airfield to land. Of course, all of this is done autonomously, based on commands we sent to Perseverance to relay to Ingenuity the night before.

No live stream was provided this time. However, the three images above from Perseverance, just downloaded today and taken about nine minutes apart, show Ingenuity before, during, and after that flight. If you compare the first and third images you can see that the helicopter was able to successfully return to the same landing spot.

I expect an announcement of this successful flight to be posted shortly.

UPDATE: JPL has now released an image taken by Ingenuity during its flight.

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Perseverance technology experiment produces oxygen from Mars’ atmosphere

4:17 pm

An engineering test experiment dubbed MOXIE on the Perseverance rover has successfully produced oxygen from the carbon dioxide in the Martian atmosphere, a technology that will be essential for future human missions.

MOXIE (Mars Oxygen In-situ Resource Utilization Experiment), a small, gold box-shaped instrument on the rover, successfully demonstrated a solid oxide electrolysis technology for converting the Martian atmosphere to oxygen. The atmosphere on Mars is about 95% carbon dioxide.

MOXIE’s first oxygen run produced 5.4 grams of oxygen in an hour. The power supply limits potential production to 12 g/hr — about the same amount that a large tree would produce.

…The oxygen production process starts with carbon dioxide intake; inside MOXIE, the Martian CO2 is compressed and filtered to remove any contaminants. It is then heated, which causes separation into oxygen and carbon monoxide. The oxygen is further isolated by a hot, charged ceramic component; the oxygen ions merge into O2. Carbon monoxide is expelled harmlessly back into the atmosphere.

Human missions to Mars will not just need oxygen to breath. They will need it to provide the fuel for leaving the planet and returning to Earth, since it will be very impractical and expensive to bring everything they need with them. For colonization and planetary exploration to truly happen future space-farers must live off the land.

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Four more flights for Ingenuity in the next eleven days.

9:14 am

According to MiMi Aung, Ingenuity’s project manager, the test flight campaign for the Mars helicopter Ingenuity has only about eleven days left, during which they will try to complete full flight program of four more test flights.

The helicopter’s one-month test flight campaign officially began April 3, then the Perseverance rover deployed Ingenuity onto the surface of Mars. “We have a 30 day experiment window, so we have two weeks left,” said MiMi Aung, Ingenuity’s project manager at NASA’s Jet Propulsion Laboratory in California.

She said the helicopter will attempt “increasingly bolder flights” that could travel more than 2,000 feet (600 meters) from its takeoff location. “We do want to push it, and I believe we have enough time to squeeze the next four flights in the next two weeks left.”

The second flight, where the helicopter will go up about 16 feet and then move sideways about seven feet before landing at its take-off point, could happen tomorrow. The third flight, which will travel as much as 150 feet, will follow soon thereafter.

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Video of Ingenuity’s flight, taken by Perseverance

8:39 am

JPL yesterday released a short one minute long video created from images taken by the high resolution mast camera on Perseverance.

You can view the animation here.

Stitched together from multiple images, the mosaic is not white balanced; instead, it is displayed in a preliminary calibrated version of a natural-color composite, approximately simulating the colors of the scene as it would appear on Mars.

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Ingenuity flies!

8:53 am

Ingenuity takes off!
For full images go here and here.

The first autonomous flight of the helicopter Ingenuity on Mars successfully took place early this morning, according to JPL engineers.

NASA has pulled off the first powered flight on another world. Ingenuity, the robot rotorcraft that is part of the agency’s Perseverance mission, lifted off from the surface of Mars on 19 April, in a 40-second flight that is a landmark in interplanetary aviation. “We can now say that human beings have flown a rotorcraft on another planet,” says MiMi Aung, the project’s lead engineer at the Jet Propulsion Laboratory (JPL) in Pasadena, California.

As shown by the two images taken by Perseverance above, the first flight was very simple. The helicopter simply rose about 10 feet, hovered for about 30 seconds as it swiveled 90 degrees, and then carefully descended back down. I have also embedded the video that JPL scientists have created compiling by high resolution Perseverance images below the fold.

Four more flights will next be attempted in the coming weeks.

Four further flights, each lasting up to 90 seconds, are planned in the coming weeks. In these, Ingenuity is likely to rise up to 5 metres [16 feet] above the surface and travel up to 300 metres [1000 feet] from the take-off point. Each successive flight will push Ingenuity’s capabilities to see how well the drone fares in Mars’s thin atmosphere, which is just 1% as dense as Earth’s.

» Read more

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The rovers’ view of Mars

9:10 am

The view from the top of Mont Mercou
Click for higher resolution. For original images, go here and here.

Some cool images to savor from Mars! Above is a panorama from Curiosity, created by me from two images taken by the rover’s left navigation camera today, April 18, 2021. The view is southwest towards the canyon regions where Curiosity will be heading in the coming months. Note the roughness of the ground. Travel is going to be tricky from here on out.

The photo was taken from the top of Mont Mercou, the 20-foot high outcrop that the rover spent several weeks studying at the cliff’s base. The Curiosity science team is presently preparing to drill into the bedrock at the top.

Ingenuity on the floor of Jezero Crater
Click for full image.

The photo to the right, reduced to post here, was taken by Perseverance on April 13, 2021, and looks west across the floor of Jezero crater. The high mountains in the distance are the crater’s rim. The low and much closer hill is the delta that is the rover’s primary geological target.

In the center of the picture is the helicopter Ingenuity. You can also see the tracks of Perseverance’s wheels just below it.

This will be the rover’s vantage point when Ingenuity attempts its first test flight in the early morning hours of April 19, 2021. The helicopter will head to the right once it lifts off.

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Ingenuity first test flight scheduled for 3:30 am (Eastern) tonight!

8:16 am

The engineering team for the Ingenuity helicopter on Mars have decided to attempt the first test flight tonight, scheduled for 3:30 am (Eastern) in the early morning hours tomorrow.

Data from the first flight will return to Earth a few hours [later] following the autonomous flight. A livestream will begin at 6:15 a.m. EDT (3:15 a.m. PDT) as the helicopter team prepares to receive the data downlink in the Space Flight Operations Facility at NASA’s Jet Propulsion Laboratory (JPL).

NASA propaganda will begin on NASA TV at 3:30 am (Eastern), but the actual live stream of the flight will not air until about 6:30 am (Eastern) on April 19th.

At the first link above the engineers explain their decision to proceed immediately.
» Read more

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Ingenuity successfully completes rapid spin test

9:00 am

Ingenuity’s engineers announced this morning that yesterday the helicopter on Mars was able to successfully complete a rapid spin test of its rotary blades.

Today, April 16, on the 154th anniversary of Wilbur Wright’s birth, the Ingenuity flight team received information that the helicopter was able to complete a rapid spin test. The completion of the full-speed spin is an important milestone on the path to flight as the team continues to work on the command sequence issue identified on Sol 49 (April 9).

…The approach that led to today’s successful spin test entailed adding a few commands to the flight sequence. This approach was tested extensively on both Earth and Mars, and was performed without jeopardizing the safety of the helicopter.

They have still not set a date for flight, because they might still decide, after they have analyzed fully the results from this test, to revise the helicopter’s software and upload that change. If not the flight will be relatively soon. If so there will be a longer delay to test that software fully before flight.

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Ingenuity requires software update before flying

9:10 pm

JPL engineers have determined that they need to upload a software update on Ingenuity in order to solve the issue that caused the first high-speed spin test of its rotary blades to end prematurely.

In an update released late Monday by NASA’s Jet Propulsion Laboratory, mission managers said engineers identified a software fix for the “command sequence issue” that ended the high-speed spin-up test Friday.

Officials at JPL, which manages the Ingenuity helicopter project, did not announce a new target date for the rotorcraft’s first test flight. Ground teams hope to determine a new target date next week for the helicopter’s first flight.

According to the original plans, Ingenuity was to get about a 30 day test period, after which Perseverance would move on to its primary Mars science mission. It is not clear at this moment whether that test period will be extended because of these issues. I suspect they will extend it to get as many flight tests as possible, since Perseverance is functioning like a dream and can wait a few extra weeks before beginning what will be years of Martian roving. How often does one get to flight test a helicopter on another world?

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Ingenuity test flight delayed

12:08 pm

Due to a software issue identified during testing of the helicopter’s rotary blades, Ingenuity’s engineers have decided to delay its first flight for at least three days.

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.

They are presently trouble-shooting the issue.

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Ingenuity’s flight schedule

9:07 pm

Ingenuity’s first flight on Mars is now a go for late on April 11th, with the first data arriving in the early hours of April 12th.

The flight plan should that first flight go as expected is as follows:

The helicopter team has 30 Martian sols (roughly 31 days on Earth) to take the first tentative flights. Assuming Ingenuity survives the first flight, it will rest and transmit data before attempting a second flight with lateral movement. Subsequent flights will happen every three or four Martian sols. The fifth flight — if Ingenuity gets that far — will be a chance to really soar. “The probability is it would be unlikely it will land safely because we will go into unsurveyed areas,” Aung said.

They have unlocked and tested the rotary blades, with all working as planned.

To watch JPL will have a live stream which I will embed on Behind the Black when it goes live at about 3:30 am Eastern on the morning of April 12th.

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Perseverance as seen from orbit

11:03 am

Perseverance landing site prior to landing
Click for full image.

Perservance on the ground
Click for full image.

Cool image time! The two photos to the right show the landing site for the Perseverance rover in Jezero Crater on Mars. The first image was taken in 2016 by the high resolution camera on Mars Reconnaissance Orbiter. The second image was made available today in the monthly release of photos taken that camera on MRO.

The arrow points to a small white streak that is not visible in the 2016 photo. A closer look reveals that the streak is actually two fanlike white deposits expanding outward in opposite directions from a central point.

What we are seeing are the exhaust fans blown onto the Martian surface by the retro-jets on the Sky crane that was lowering Perseverance to the ground. The rover was put down at the centerpoint, and was still at that spot on March 2nd when this photo was acquired.

The highest resolution version of this image requires special software, so in this version you cannot see the rover itself. Nor can you see the Sky crane after it crashed landed or the parachutes.

The new photo was taken one week after the first high resolution image from MRO, as part of what will become a routine periodic monitoring of the site, along with obtaining mapping information for picking the rover’s upcoming route They will also probably use both images to try to locate both the Sky crane and parachutes, on the ground.

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Watching Ingenuity’s flight

8:35 am

NASA has now announced the planned flight time for its Ingenuity helicopter now on the Martian surface, including information for watching the live stream of the attempt.

A livestream confirming Ingenuity’s first flight is targeted to begin around 3:30 a.m. EDT Monday, April 12, on NASA Television, the NASA app, and the agency’s website, and will livestream on multiple agency social media platforms, including the JPL YouTube and Facebook channels.

I will embed the JPL live stream on Behind the Black when it goes live.

Meanwhile, Perseverance’s weather station is now functioning, providing its first weather reports from Jezero Crater.

[E]ngineers now have atmospheric data from three different locations on the Red Planet – Perseverance, Curiosity, and NASA’s InSight lander, which hosts the Temperature and Wind sensors for InSight (TWINS). The trio will enable a deeper understanding of Martian weather patterns, events, and atmospheric turbulence that could influence planning for future missions. In the near term, MEDA’s information is helping decide the best atmospheric conditions for the Ingenuity Mars Helicopter flights.

As Ingenuity achieved pre-flight milestones, a MEDA report from the 43rd and 44th Martian days, or sols, of the mission (April 3-4 on Earth) showed a temperature high of minus 7.6 degrees Fahrenheit (minus 22 degrees Celsius) and low of minus 117.4 degrees Fahrenheit (minus 83 degrees Celsius) in Jezero Crater. MEDA also measured wind gusts at around 22 mph (10 meters per second).

Those numbers are about normal for Jezero Crater at 18 degrees north latitude in the spring.

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Ingenuity survives first night on its own on Mars

3:17 pm

Completing another a major engineering hurdle, the Ingenuity helicopter successfully survived its first night on Mars, unprotected by the power and shielding of the Perseverance rover.

“This is the first time that Ingenuity has been on its own on the surface of Mars,” said MiMi Aung, Ingenuity project manager at NASA’s Jet Propulsion Laboratory in Southern California. “But we now have confirmation that we have the right insulation, the right heaters, and enough energy in its battery to survive the cold night, which is a big win for the team. We’re excited to continue to prepare Ingenuity for its first flight test.”

Engineers will spend the next two days fine-tuning Ingenuity’s thermal and power systems. Then on April 7th they will begin testing the helicopter’s rotary blades and their motors. If all goes right, the actual flight will occur on April 11th.

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Ingenuity released from Perseverance

12:57 am

Ingenuity on the ground
Click for full image.

Perseverance engineers have now confirmed that the Ingenuity helicopter was successfully released below the rover earlier today, and the rover immediately moved away to expose the helicopter to sunlight so that its solar panels can charge its batteries.

The photo to the right, cropped to post here, was taken by one of Perseverance’s rear hazard avoidance cameras, shortly after the release and move. They will now begin about a week of check-outs to make sure Ingenuity is functioning properly, even as they drive Perseverance a distance away to a lookout point where it can safely observe the helicopter’s test flight on Mars, presently targeted for April 11th. If successful this will be the first powered flight ever achieved on another world.

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