Posted on 10/21/2016 2:22:19 PM PDT by LibWhacker
Europe's ExoMars lander apparently crashed on the Red Planet, and an orbiting NASA spacecraft has spotted its grave, European Space Agency (ESA) officials said.
The lander, named Schiaparelli, stopped communicating with mission control about 1 minute before its planned touchdown on Mars Wednesday morning (Oct. 19). Newly released photos of the landing site by NASA's Mars Reconnaissance Orbiter (MRO) seem to confirm what ExoMars team members had suspected — that Schiaparelli died a violent death.
The photos show a bright feature consistent with the lander's 39-foot-wide (12 meters) parachute, as well as a 50-by-130-foot (15 by 40 m) dark patch likely created by the lander's impact, ESA officials said. [In Photos: Europe's Schiaparelli Mars Landing Day]
This comparison of before-and-after images by NASA’s Mars Reconnaissance Orbiter shows two features likely created during the Oct. 19, 2016 landing attempt of the ExoMars Schiaparelli lander. The small bright feature at bottom is probably Schiaparelli’s parachute, while the dark, fuzzy blob is likely the lander’s crash site. Credit: NASA/JPL-Caltech/MSSS
"Estimates are that Schiaparelli dropped from a height of between 2 and 4 kilometers [1.2 to 2.5 miles], therefore impacting at a considerable speed, greater than 300 km/h [186 mph]," ESA officials wrote in an update today (Oct. 21).
"The relatively large size of the feature would then arise from disturbed surface material," they added. "It is also possible that the lander exploded on impact, as its thruster propellant tanks were likely still full. These preliminary interpretations will be refined following further analysis."
ExoMars team members think those tanks were still full because Schiaparelli's data indicate that the lander didn't fire its descent-slowing thrusters nearly as long as it was supposed to, ESA officials have said.
MRO took the photos with its relatively low-resolution CTX camera. The orbiter will image the crash site with its sharper High Resolution Imaging Science Experiment (HiRISE) camera next week, ESA officials said.
The large, dark patch is about 3.4 miles (5.4 km) west of Schiaparelli's intended landing site within Mars' Meridiani Planum, a highland region just south of the Red Planet's equator. The impact site is well within the planned landing ellipse, which measures 62 miles long by 9 miles wide (100 by 15 km), ESA officials said.
Schiaparelli launched this past March along with the Trace Gas Orbiter (TGO). Together, the two spacecraft form the first part of the two-phase ExoMars program, which is led by ESA with the Russian federal space agency, Roscosmos, as main partner.
Schiaparelli's main task was to help prove out the technologies required to get a life-hunting rover — ExoMars' second phase — on the ground safely in 2021. ESA officials have said that Schiaparelli's descent through the Martian atmosphere will be useful in this regard, even though the probe didn't stick its landing.
While Schiaparelli was barreling through the Martian air Wednesday morning, TGO was executing a 139-minute-long, make-or-break engine burn to get into orbit around the Red Planet. This latter maneuver went well, and TGO is now circling the planet every 4.2 days on a highly elliptical path, ESA officials said.
TGO is in good shape and will start calibrating its science instruments next month, they added. Early next year, the orbiter will begin shifting to its final science orbit — a circular path that lies about 250 miles (400 km) above the Martian surface. TGO should achieve this orbit in March 2018 and begin its official two-year science mission shortly thereafter.
The main goal of that mission is to help figure out the origin of methane and other low-abundance gases in the Red Planet's atmosphere. Methane is of particular interest to astrobiologists, because the gas is a potential sign of life (though it can also be produced by geological processes).
TGO will also serve as a communications relay for the ExoMars 2020 rover and NASA's operational surface craft, the Opportunity and Curiosity rovers (and, later, the American space agency's 2020 Mars rover), before ending its life in late 2022.
Augured in.
Did it have a Koran on board?
Excellent!
That’s too bad. I’m sure a lot of effort went into the project.
Did it send the message “Aloha Snackbar” just before hitting the ground and exploding?
Look closely just to the left of the impact point, you’ll see the reason why it didn’t make it.
It was landing too close to a Martian runway, and they shot it down.
Called it!
NTSB’s gonna have a helluva time getting to *that* crash site!
I hate when my descent slowing thrusters don’t fire as long as they are supposed to.
At least it didn’t crash due to a units conversion error...
It only a 2/3rds chance of failure. Go ogle, “Mars curse.”
“That’s too bad. I’m sure a lot of effort went into the project.”
Yes, I agree. People put their lives into these projects - they typically take years from conception to fruition. It must be heartbreaking to see it all go wrong in the last mile, so to speak, although that is typically where the largest danger is, also.
In a way, that’s how I felt about the F22.
Decades of planning, the best aircraft of it’s kind by far, incredibly capable with cutting edge technology, and we cut the production way short.
Just when the cost of the unit prices was ready to fall due to all the overhead already having been spent, they cancelled it.
Frankly, it made me angry.
Question for all: The video had a caption that the tanks were full of propellant, the lander hit the ground at 186mph and it probably exploded upon impact. Does the Martian atmosphere have enough oxygen to allow for combustion?
I don’t think the Martians appreciate us sending probes to their planet.
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