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#4141 |
"Think BOOM!"
Join Date: Nov 2003
Location: 33.675° N 106.475° W
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Posts: 184,574
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#4142 |
"Think BOOM!"
Join Date: Nov 2003
Location: 33.675° N 106.475° W
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![]() 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). |
Posts: 184,574
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#4143 |
Banned
Join Date: Jan 2013
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Reminds me of a Rain Man poll. Purple is my vote. The traverse looks awesome.
Last edited by eDave; 03-06-2021 at 12:46 PM.. |
Posts: 53,803
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#4144 |
MVP
Join Date: Jul 2001
Location: Newport, Or
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Posts: 14,736
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#4145 |
(Sir/Yes Sir/Aye Aye Sir)
Join Date: Oct 2009
Location: Diving
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Purple...
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Posts: 118,031
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#4146 |
"Think BOOM!"
Join Date: Nov 2003
Location: 33.675° N 106.475° W
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Posts: 184,574
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#4147 |
"Think BOOM!"
Join Date: Nov 2003
Location: 33.675° N 106.475° W
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It was later stated that the landing burn was at fault, with Chief Designer Elon Musk stating, “Thrust was low despite being commanded high for reasons unknown at present, hence hard touchdown. We’ve never seen this before.”
As such, had all landing legs locked into place, that would not have protected SN10 from a hard landing. “This was way past leg loads. They got squashed hard,” Elon added. “Next time, min(imum) two engines all the way to the ground and restart engine 3 if engine 1 or 2 have issues,” Elon pointed out.
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Posts: 184,574
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#4148 | |
The Seated Villain
Join Date: Apr 2007
Location: Seattle
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Quote:
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Posts: 10,648
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#4149 |
"Think BOOM!"
Join Date: Nov 2003
Location: 33.675° N 106.475° W
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Posts: 184,574
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#4150 |
"Think BOOM!"
Join Date: Nov 2003
Location: 33.675° N 106.475° W
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March 9
Falcon 9 • Starlink V1.0-L20 Launch time: 0258 GMT on 10th (9:58 p.m. EST on 9th) Launch site: SLC-40, Cape Canaveral Space Force Station, Florida |
Posts: 184,574
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#4151 |
Banned
Join Date: Jan 2013
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Sweet. A night launch.
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Posts: 53,803
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#4152 |
"Think BOOM!"
Join Date: Nov 2003
Location: 33.675° N 106.475° W
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Moved to NET March 11
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Posts: 184,574
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#4153 |
"Think BOOM!"
Join Date: Nov 2003
Location: 33.675° N 106.475° W
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“SN10 engine was low on thrust due (probably) to partial helium ingestion from fuel header tank. Impact of 10m/s [22 miles per hour] crushed legs & part of skirt,” he tweeted.
A closer look at the landing of SN10 shows it was slightly leaning to one side before exploding. Musk went on to explain that the helium ingestion was probably the result of a pressurization system that had been added to the methane header tank to fix a problem that occurred in a previous starship prototype, SN8. “If autogenous pressurization had been used, CH4 bubbles would most likely have reverted to liquid,” he said. “Helium in header was used to prevent ullage collapse from slosh, which happened in prior flight. My fault for approving. Sounded good at the time.” |
Posts: 184,574
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#4154 |
"Think BOOM!"
Join Date: Nov 2003
Location: 33.675° N 106.475° W
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Posts: 184,574
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#4155 |
"Think BOOM!"
Join Date: Nov 2003
Location: 33.675° N 106.475° W
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Posts: 184,574
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