How Satellites Track Your Exact Location
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- Опубліковано 5 лип 2024
- GPS has become a staple on any smartphone, but how does it work?
How Does Your Brain’s GPS Work? ►►►► dne.ws/1XfwdhD
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Read More:
How GPS Receivers Work
electronics.howstuffworks.com/...
“Fundamentally, three-dimensional trilateration isn't much different from two-dimensional trilateration, but it's a little trickier to visualize. Imagine the radii from the previous examples going off in all directions. So instead of a series of circles, you get a series of spheres.”
Real-World Relativity: The GPS Navigation System
www.astronomy.ohio-state.edu/~...
“The current GPS configuration consists of a network of 24 satellites in high orbits around the Earth. Each satellite in the GPS constellation orbits at an altitude of about 20,000 km from the ground, and has an orbital speed of about 14,000 km/hour (the orbital period is roughly 12 hours - contrary to popular belief, GPS satellites are not in geosynchronous or geostationary orbits).”
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Hi Trace, what's up? I've been following D'News for a few days and the channel is amazing, the content is great and I've learned while laughed a lot :).
Man, I just love your t-shirts, do you sell them? I'm in Brazil, is it possible to buy and have them delivered for me here?
I can't wait for the next videos!
Instablaster.
And the generation after that might get you to leap into the 20th century, and switch to the metric system.
Or we'll bomb everyone until they switch to murica
We still got a long way to reach that level of sophistication
I have a handful of people on one of my videos who claim that satellites don't even exist and that cell phone towers are used.... I find it kinda weird people don't believe in GPS's...!
+AndreT ..He's talking about the flat earthers and the concave earthers and the tin foil people who think the moon is a hologram etc..
They are usually super religious and believe the earth is in-cased in a 'glass dome' that nothing can penetrate..
hence they think space is 'faked' by Satan worshiping NASA Free-Mason Nazis in Stanley Kubricks pool or some shit..
Lasse Øksbro Want to see a satellite? Go outside at night and look at the sky. In less than 5 minutes you'll see what looks like a small star moving across the sky. It will appear faster than a plane and will be much higher. This is a satellite.
The largest and easiest satellite to see is the ISS. It orbits the earth every 90mins, which is over 17,000 miles per hour (27,500kmh).
Can you name me one plane, missile, or bullet that can travel 17,000mph INSIDE earths atmosphere and never land to refuel?
Do you want to see the ISS but dont want to stare aimlessly at the sky? Here is a link to the ISS tracker. You can see when its going to be over your house and then you can go out an confirm it with your own eyes: www.isstracker.com/
any questions?
+Hercules Rockefeller It almost scares me people actually believe in that shit. I mean damn, I've heard some conspiracy theories but those take the cake. Yep, NASA and world governments are just launching rockets to fool the whole public. Give me a damn break. Einstein & scientists are rolling over in their graves.
Lasse Oksbro the average human never sees quantum physics happening, but without it our current computers wouldn't work.
Lasse Øksbro yes, yes.. and if earth is round, why dont people in Australia fall off into space?
Lasse Øksbro You obviously don't understand gravity and centrifugal force of the earth. Plus half of your sentences don't make any sense.
you should also know that gps locations become less accurate in valleys or in any place where you have "walls" around you. This is because the satelites have "bad" geometry, because the satelites have to be close to each other. If you were on a flat surface, the further apart the satelites, the better the geometry, and the more accurate it is.
Do a video on mass GPS tracking.
Did you not watch the video? GPS doesn't work like that. GPS is all calculated and fracked locally on the phone/device itself. Now, someone can PROGRAM the operating system to send the location (calculated by your phone) to people over cellular/wifi signals, but that's a completed information. It's not the raw timing information from the satellites that's being sent.
I've also wanted to know that. Thanks!
just watched one video of yours. I'm hooked iv subscribed to your channel
Correct me if I am wrong, but wouldn't the satalites clock tick at a slower pace, not faster? Traveling faster and faster - although no where near light speed -compresses objects outside our frame, slowing the clocks?
Thanks for the awesome explanation bro B-)
Trace's beard gives away their recording/upload schedule lol
How do they get sponsorship from US air force??
In soviet russia, GPS find you!
so funny that I didnt even laugh -_-
Kristaps Vigulis Well, good for you
I snorted happily!
+Poverty Gaming its simple....don't use smart phones...buy nokia 3310. but even if you do so....they can still track you via optic lenses....they can watch you true walls or roof while u jerk off or take a crap....there is nothing you can do to hide ur shitty life. So just ignore it.....
Don't GPS's already find you?
Superb....thanks Trace...
Mentioned is the clock correction due to gravity slowing ground-based clocks. It an additional correction is needed for the satellites' velocity slowing the clocks slightly.
you are the best teacher in science 😀
GPS satellites can't track you but the intruder satellites can! Nice try air force! ;P
I'm not entirely sure if I understood you correctly but I think you don't necessarily need 4 satellites for *tri* lateration. However, as you have mentioned the smartphone clock is pretty bad and to overcome this issue a forth satellite is needed. GPS does not use the smartphones own clock as far as I know but instead the time of the forth satellite as a reference so to speak (a little more complex than that though).
+KerbalEssences GPS uses the clock of the device (phone, etc) for time. The actual time of your clock (relative to the super precise nuclear clocks in the satellite) is an "unknown" variable along with your X, Y, Z location. You then have 4 unknowns, which requires 4 "observations" (satellites) to solve the equation for X,Y,Z as you also need to solve cdt (clock error). So the clock on your device is used, but the extra satellite allows your clock to be adjusted to match the satellite clocks.
you said it was the change of gravitational pull that makes a difference with the clocks at 5:20 but there very little change in gravity on the satellites but it's their speed that makes most of the difrence
You never get me alive!!! [hides under bed] now they never know where I am
Trace, where can one find those awesome shirts you wear?
Einstein's Theory of Relativity turns 100 today! :D
Did it or is that just from your point of view!😂
Great vid!
u ain't lyin. got all my favorite t-shirts lol
Do a video about prions!
I was thinking of this 1 day ago... Then i saw this and instantly clicked xD
0400/0522 , i think the satellite time should be slower , not faster... is it you mean the clock is fast to cancel out the effect?
+Meathew Chan Yes about 7 microseconds a day, but a prediction of General Relativity is that clocks closer to a massive object will seem to tick more slowly than those located further away. In the case of GPS satelites it's calculated at 45 microseconds a day.
One question-
The Gps system involves use of 24satellites positioned in orbit,allowing 3 to always be
a)at right angles to deflect radio signal
b)visible at night to ensure visibility in dark
c)above the horizon to be used at any one time
d)above or below the lowest object in sky
Please say the right answer
1:10 HOLY SHIT! How long did it take to memorize that cuz damn thats a lot!
Probably a teleprompter (yes ik im 4 years late)
Please do a video on how gps works on flat earth. Im having a hard time figuring this out...
Did you not know how satellites tracked your location prior to this video? And if you already knew, why would you waste your time watching this video and taking time to make a comment? Are you a homosexual?
It wouldn't work on a flat Earth, but that's something we don't have to worry about.
using fiber optic cable and dts tower..
google even say that my location dont need a satelit.. only dts tower..
learn about "white alice" technology
and does the jet fuel melt steel beams .lol
\
Love clicking a dnews video without a thumbnail including the host.... And getting Trace! :) also pizza
Good little video to intro on GPS. Used it for my fifth grade class. "Hey, Trace, would appreciate it, bro, if you didn't slip in the euphemism "frickin" at 4:21. I know "everybody" says it, but you know the old proverb about everybody jumping off a bridge. Would be nice to have euphemism-free science, instead of a snappy presentation with a hip guy with collection of nice t-shirts reinforcing to children that everyone should come as close to swearing as possible." Think about it.
I mean, this is nice and all, but America is not the only country doing Satellites.
How do the satellites fare for other countries like Japan and Russia?
- Do the systems work pretty much identically?
- Are there any cooperation in satellite control and shared usage?
You said a lot about air force and American atom clock, but same "system" would also apply to other countries then?
is trilateration murrrican for triangulation?
In your shout out to the USAF you accidentally include a second of footage of dumb infantry at 4.48.
Its really sad how millions of people use GPS every day and comlain about it, despite not having a clue how it works or being able to appreciate the awesomeness of it.
THANKS EINSTEIN!
These google self-driving cars. Would something like WiFi routers on streetlights? Using just GPS and no ground communication? GPS and WiFi can work together to tell the on-board google system where exactly it is at.
1:10 welldone
"A study of nearly 5000 people in the journal of epidemiology, which found the rate of food intake heavily correlated to the rate of obesity..." Is this really new knowledge?
we actually ordered pizza with gps coordinates in the army, the local pizza places were cool.
awesome.
@comic b studios i mean like just an atom
My GPS has an accuracy of ~2.5cm (1 inch) using carrier phase tracking...
can we just use lte towers and wifi hotsposts as a satellite replacement?
it will bring costs down alot. by a margin of the price of a satellite lunch and upgrade cycles would be a lot sooner
+Sam Abtahi We could. And it is possible to locate someone via their position relative to the closest 3 cell towers, but coverage as it is is not nearly complete enough. GPS has to work the world over. With satellites, that coverage is not a problem.
And besides, the zoning paperwork is much less of a headache in space. You don't have to deal with people's houses and businesses getting in the way on the surface. And also, because towers aren't as high off the ground, you'd need millions of them total to cover the planet, in places where they could be very hard to build and consequently maintain. In space, we only need about 30.
Our methods of getting things into space may be fairly inefficient, but it's much more consistent than having a tower on the surface.
I live in the middle of almost nowhere, when i go down my street to town, it loses gps signal, every single gps and phone I use always loses the signal in that exact spot. why? I don't know. There are trees but do not affect it because other trees don't when I'm near them. plus the spot is on top of a hill. Another location where it messes up was before I graduated in school and the maps say I was across town. any ideas?
+Matt Merrill Aliens. Uhmm no idea bro
Say hello to Muriel for me, would you ?
+Matt Merrill turn off your data connection and wait a while, you will get a pure GPS signal from the sky. Otherwise, you're getting a signal that is assisted by the location of nearby cell towers.
They're always watching! D:
They showed me how GPS work on my Geography class
So we need to get atomic clock time from the satellite to the phone, but for that, we need to know the distance to said satellite, or else we can't tell how much to correct for the time delay that it took for the signal to get to the receiver, for which we would again need atomic clock time for the receiver. *Scratching my head
I know it does some fancy math with all the data from all the four satellites, but can someone explain it in simple terms?
0:27 you don't find the institute, the institute finds you.
Doesnt other country accquire GPS sats for public??
so cool
"Gravity is stronger down here" - Trace, smh smh. Relavitistic speed leads to time dialation, silly boy.
+Rex Uisus A prediction of General Relativity is that clocks closer to a massive object will seem to tick more slowly than those located further away
+Rex Uisus Both speed and gravity contribute to time dilation.
Oh THNX
+Shawn Ravenfire time doesn't have any mass or weight...so its not affected....it doesn't even exist in real world...its just something that people made out.....
xAsmir Can you tell the people who made up time to stop making me get older?
do a video on why we lose our vision.
what is an atomic clock
i did a presentation on GPS when i was in uni
Everything in this video seems ok, but I am not sure about the Satellites thing because I am a computer science major and we learned that we get time from a protocol called NT protocol which stands for network time protocol. And any such device connected tot the network will be automatically connected to it. If fact now your Windows or Linux systems are recieving the time from NT protocol. Even GPS use these protocol to get their accurate time. I am surprise that you have more than 3 M subscribers and no one is majoring computer science
J Calhoun No I am not. I actually know that internet is a large network that connect the world togeher using physical layers like cables and network layer like routers. For example, if i want to connect to a device in Paris and I am in US. I will actually send my packet throw my router which will route my packet to Paris. It wont be transfered from my router to Paris router immediatly, but instead it's going to be routed to multiple routers that on it's way to Paris. So at the end internet is just physical cables that connect you to the internet service provider and routers that made to router packets to any place you want.
DNews!!! Please make a video on how gravity powered energy works!
+perfumeorpoison
Things fall down and drive generators while doing so :-)
take hxdroelectric power plans for example
its true that the satellites will experience a relatively faster time because of the weaker g effects from earth but an opposite effect that is stronger comes from moving so fast which means their clocks are actually moving sloooower. btw yall should hire me
Don't mock my need for pizza and the way I get it to my face, BRO
air force finally good ad
By way of Cell Towers,, Josh Patterson, >Satellites don't track you; Google, Facebook, and Microsoft do and as you pass near RFID readers, use Credit Cards and camera's.
Thanks Einstein for allowing me have pizza.
#Science=Pizza
Was that Harry Potter in camo gear? ... Mo research is needed.
you guys aren't uploading as much as you used to
that's insane
i got a question for y'all is there a place where you can buy atoms and subatomic particles i mean ik there insanely small but still scientist have to have a place where they get them to study them
+Edwin Buret look around you, everything is made of atoms.
+DNews
sigh... theres also another head ache altho its mostly soled now... that head ache is due to daylight savings and days in the year changing in amount....
this caused a REAL problem for figuring out things.... especially for programmers
then the solution which they used.. luckily it was recorded... was that they would just use the number of nano seconds as history itself... and use the point at 1980s when and where the counting started of the vibrations.... not by day or month or second as the the main count.. but the nanosecond SINCE the time the counting started.. and just program in the parameters for the region where daylight savings year are different in range etc...
+smariot ROFL ya... I meant to include those, but it was one of the many terms that were on the tip of my tongue and just couldn't get out...
I have been watching d news for quite a while, but am I the only one that thought, "Are they sponsored by Discovery Channel? or just ripping off the logo
Developed by the military for super important spy stuff
Opened to the public
Public uses it for pizza
how much wireless network affect our health...
And after saying 5 times pizza guy definitely gonna show up.. lol
well THIS was the most confusing episode yet...
You forget to mention sagnac effect. the problem has not yet solved
Turn off your phones & computers then hide in the woods ☺️
just 6 more satellites in 2015 ?
How does the gps satellite knows if there is a traffic jam?
LOL Trace, 9192631770 part was so funny
0:40 70's not 80's
who else just looked at his mouth to see if you could read lips in case you'll go deaf?
US air force could try pizza delivery instead of their current activities. There are many places to bomb with pizzas where it is needed. Think about it air force. Could use pizza drones while you stay at home. People would be very grateful.
wow... GPS should be really expensive
Stupid question: So I can´t be found if I change the time on my phone?
Was thinking the same question, but I'm guessing there's another clock that keep staying the same and that connects yo the satellite
+MusicANDshit Hi, actually the smartphone clock is not used at all. *tri* lateration only requires three satellites for the exact position. However, the time of a forth satellite is taken as a reference to you bypass the inaccurate smartphone clock.
I think pizza guy knows where to deliver cause you give them your address
Im being tracked and can see tracking signals around me
"Secondly"
I see what you did there.
how...?
With all those alleged myrids of satellite debrae orbiting a ball earth, why can't we see any of them superimposed over the light surface of the moon?
Sub conscience message brought to you by Dominos Pizza
is there any technology comes with satellites or other that can LIVE trace Human or animals by giving DNA info ?
We can find the pizza spots but can't find ISIS ?
They're not as tasty.
OUIONS God Isis is the USA
The satellites DON'T track your location. You track there's.
Lol satellites in space.. Lol
I got so lost in the 1st minute
*Santa?!!*
Then all these free apps you've downloaded report your GPS locations to people secretly tracking you.
no shit
Hi my Freend
Is it possible for two man-made satellites to collide and fall to the Earth?
They make sure to put satellites in slightly different altitude so that won't happen.
If that did happen (even though it's extremely unlikely) they wouldn't fall to earth, they would just float there
+RSher767 although there would be the possibility of severe damage to the satellites...
+Dj Lee Possible but not probable, that would be pretty crazy tho
+Dj Lee depends in which directions each satellite is going, most communication satellites go in prograde orbits, and different altitudes
Did you
Y would the Air Force sponsor it?
Space
wow! that is cool... I don't get it.
Its spelled caesium
Paranoid people be Lost