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SpaceX launches - Drone ship landings lost signal mystery

Meme-Dweller
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Foo2rama Foo2rama
Yes considering they said the metal never broke 700 degrees, but they ignored the multiple studies that showed by testing the metal it broke 1,200 degrees.

Oh the peer reviewer that has since retracted his blessing on the paper as it has come to be shown it drew bad conclusions and why and how they did.
https://journals.sagepub.com/doi/abs/10.1260/2041-4196.4.2.117


The final report worked on by 100's of people with access to the wreckage that fully explains in detail how it happened.
https://www.nist.gov/el/final-reports-nist-world-trade-center-disaster-investigation

Unless you think hundreds of people faked that report and paid off the independent testing of materials to falsify the data. Before you claim but its GOV... yeah bipartisan people of all backgrounds without any allegiance to the president would have to be in on it, and not a single one decided to come forward and say they were asked to falsify data...

But sure tons of explosives were mounted all over the building and no one noticed, all the drilling on every floor into the concrete columns. No one noticed any large scale construction work, or lines of det cord mounted anywhere. As this would have had to been a multiple week process, the fact no one came across any signs of these in everyday work... makes total sense, but if you want to disrespect the lives that where lost in all countries by the fallout of this event sure believe what you want. Rumsfeld and Bush can still be evil and everything was done by terrorists.

I'm not a 9/11 conspiracy guy, but I like to hear both sides of an argument and the logical one always sways me. I agree that it's unlikely that 100's of people were paid off by some malevolent entity and/or that it was orchestrated by the government, but I came across this video and I don't know what to believe on the subject anymore. The buildings, including WTC7, simply defied basic physics and architecture.

The video is an hour long, but if you're bored, it's a good watch.

 
Archer
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^^^ only managed about 20 minutes before my blood pressure was getting too high.

All I can say is, this guys definition of "direct evidence" is much different than mine.
 
jsducote
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Omegafanman Omegafanman
It is reasonable to consider this could be minor media manipulation / a public relations delay to avoid risk when the stage returns ( since they have a high failure rate and you don't want an explosion to spoil a seamless launch narrative).
I'm not saying it happened in this case, but it isn't unprecedented. In one of the X-38 crew return vehicle unmanned drop-tests during my brief tenure at JSC, PAO cut the live-feed when it became obvious that the parafoil failed to deploy properly and the craft was about to create a rather deep hole in the Mojave desert floor.
 
Foo2rama
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Archer Archer
^^^ only managed about 20 minutes before my blood pressure was getting too high.

All I can say is, this guys definition of "direct evidence" is much different than mine.
Agreed...

It all comes down to a specific logical error that too many people fall into. Thinking the inability to prove a negative is proof.

Example: Please prove that Unicorns do not exist.

They exist in the earliest human artwork in the caves of Lascaux through the middle ages and onto today. They exist in almost all human belief systems. Prove to me that extremely rich and powerful people have not hoarded them and ground-up their horns to keep them young. It explains the extremely long lifetimes in the bible and the odd absence of unicorns in the old testament. It really looks like they started to be scrubed from history around that time. Tom Cruise is obviously in on it, as he is still makeing action movies while older then Wilford Brimley was in Cocoon.

So like a conspiracy theory built up around the inability to disprove Unicorns do not exist, you cannot disprove that a giant conspiracy exists with 10's of thousands of people all keeping their mouth shut who obviously never benifited financially in any way from a horrific and illegeal government action.

Common sense on the other hand...
 
Vercingetorix
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Im still waiting for the only reasonable explanation for the loss of signal. Bermuda Triangle.
 
Foo2rama
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89-0 89-0
holyshit!
upload_2020-6-1_16-21-24.png
Yes obviously the movie is a metaphor for access to unicorn horn dust.
 
isaac.owen.nz
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So that explains what I just saw on Instagram, a video shot from what appears to be from a helicopter of a SpaceX booster landing on the deck of a ship in pretty rough seas. It's probably online elsewhere so you can find it.

Also it doesn't take much for a marine internet/comms satellite to lose signal, the fact that it comes back that quickly impressed me! So often I was chasing signals around the sky only to be thwarted by clouds and storms, so the presence of a f*** off rocket landing a few metres away doesn't surprise me that it drops off.
Also depends where on the satellite footprint they're located, which supplier they're using etc, towards the edges of footprints the signals become incredibly fickle.

Edit; I forget I was lucky enough to witness a SpaceX launch a couple years ago at cape Canaveral, to see the booster come back down and land even from a distance is jaw dropping stuff! That double sonic boom too!!!

Edit 2; y'know what, here it is for y'all
Edited:
 
Professor
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Foo2rama Foo2rama
Example: Please prove that Unicorns do not exist.

They exist in the earliest human artwork in the caves of Lascaux through the middle ages and onto today. They exist in almost all human belief systems.

Many years ago I ran across a magazine article with photos of a find of skeletal remains of a extinct species of Musk Deer. The skulls showed multiple antlers or spikes arranged in a crown above the brows. The two center antlers were grown together twisted around one another with the appearance of a single horn flanked by short spikes.
According to the article these creatures co-existed with the earliest human inhabitants of that region. Possibly the origin of the Unicorn legends/myths.
 
Foo2rama
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Professor Professor
Many years ago I ran across a magazine article with photos of a find of skeletal remains of a extinct species of Musk Deer. The skulls showed multiple antlers or spikes arranged in a crown above the brows. The two center antlers were grown together twisted around one another with the appearance of a single horn flanked by short spikes.
According to the article these creatures co-existed with the earliest human inhabitants of that region. Possibly the origin of the Unicorn legends/myths.

But prove they don’t exist today 😉
 
Omegafanman
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Thanks for all the info / video link from @Foo2rama was very informative. I am a SpaceX fan and would love to see them land on Mars - so I still like to push the details a bit / they can take it. The recovery / landing statistics are awesome but I also think from x3 Falcon Heavy launches they have never recovered a centre stage (in fairness one fell off after landing) - but it still shows things are tough compared to the outer boosters.
 
Omegafanman
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They do have other ships - like Ms. Tree which was probably not used for the manned launch / they have spare ships that could act as a relay station
 
fairing catcher .jpg
Foo2rama
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Omegafanman Omegafanman
Thanks for all the info / video link from @Foo2rama was very informative. I am a SpaceX fan and would love to see them land on Mars - so I still like to push the details a bit / they can take it. The recovery / landing statistics are awesome but I also think from x3 Falcon Heavy launches they have never recovered a centre stage (in fairness one fell off after landing) - but it still shows things are tough compared to the outer boosters.

I thought they had recovered all 3 at least once. 2 on land one on the drone ship.

it’s all listed on the Wikipedia page.
 
Omegafanman
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I get the signal issue but all ships (like warships) have to cope with heavy seas and vibration (as do rockets) but maintain communication - are we saying the drone ship and rocket stage loose all telemetry and communication during a landing / fully autonomous or is it just the video feed?
 
GhTy.jpg
Omegafanman
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Foo2rama Foo2rama
I thought they had recovered all 3 at least once. 2 on land one on the drone ship.

it’s all listed on the Wikipedia page.
I will cross check - I am a bit time poor this week. Would be good to see a video of the Star-man centre stage incident if someone has that link. I am only referring to Falcon Heavy launches / not Falcon 9 etc
 
Omegafanman
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Omegafanman Omegafanman
I get the signal issue but all ships (like warships) have to cope with heavy seas and vibration (as do rockets) but maintain communication - are we saying the drone ship and rocket stage loose all telemetry and communication during a landing / fully autonomous or is it just the video feed?


LIVE - First test flight for SpaceX's Falcon Heavy rocket
30:35 - we just got confirmation... no - as soon as we know we will let you know...…
Landing starts 29:51 - 32:54 feed signs off / stays on for Star man feed .... don't panic... I know it is only 3 minutes but being picky unless all signals and telemetry are cut, there should be some better indication if the stage is down ok - Its their party but either film it or don't film it in real time is my view. And there is actually over four minutes of feed time as they switch to the orbital Tesla cameras. It does not build confidence for Mars if they cant hold an update for landing 1000km of ocean away within a 3 (4) minute timeslot. I am sure some nerdy student would lash up a gimbal for free / could be a nice school or university challenge.

https://www.youtube.com/watch?v=xLIb8glag-0
 
Omegafanman
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Foo2rama Foo2rama
3 FH launches. All boosters landed on land. 2/3 of the main engines did not land on the drone ship.
https://en.m.wikipedia.org/wiki/List_of_Falcon_9_and_Falcon_Heavy_launches

Sorry being lazy again / about to sign off - I think 2 of the centre stages in effect crash landed or failed near or on the drone ship and one landed but fell off before it was secured - which shows it is tough. I imagine the trajectory / weight means it has to be a sea based recovery - I am sure they will get better at it. The faring catcher boat is super neat - only just spotted that.
 
Foo2rama
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Omegafanman Omegafanman
I get the signal issue but all ships (like warships) have to cope with heavy seas and vibration (as do rockets) but maintain communication - are we saying the drone ship and rocket stage loose all telemetry and communication during a landing / fully autonomous or is it just the video feed?

bit rate needed for video, vs much lower bit rate for just data lower BW does not need as much of a lock. Also they would use non directional radio that would transmit to a more stable source like a E2 or joint stars. Also heavily rolling seas are a different problem then heavy vibrations.
 
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