smh NASA's really gotta get an ethernet cable running to that thing
NASA Ping
Submitted 8 months ago by fossilesque@mander.xyz to science_memes@mander.xyz
https://mander.xyz/pictrs/image/56a26586-8a5d-449a-99da-7abb06ee2abd.jpeg
Comments
rem26_art@fedia.io 8 months ago
FiskFisk33@startrek.website 8 months ago
fun fact, that would make the transmission slower.
According to wikipedia cat5 cable has a propagation delay of 5.30 ns/m, which works out to about 62% of the speed of light. While radio waves propagate at the speed of light.
tentacles9999@lemmynsfw.com 8 months ago
Just have to wait until cat 9 comes out with gravitational lensing
LadyAutumn@lemmy.blahaj.zone 8 months ago
Yeah, the reason ethernet is generally faster compared with wifi is mainly due to dropped packets due to interference from physical objects between the device and the transmitter. Not as much an issue when you’re issuing commands into the vacuum of space from large, high-powered antennas.
zaphod@sopuli.xyz 8 months ago
Radio waves always propagate at the speed of light, it’s just that the effective speed of light in copper and glass fibre is lower than that in air/vacuum.
justme@lemmy.dbzer0.com 8 months ago
It’s not like they “play” competitive real time over there. It’s more turn based single player
BruceTwarzen@lemm.ee 8 months ago
Do they have to race 12 year olds high on sugar and Adderall?
meliaesc@lemmy.world 8 months ago
Come to think of it, who are the real aliens?
ArmokGoB@lemmy.dbzer0.com 8 months ago
The Brazilians in my US multiplayer lobby.
lolcatnip@reddthat.com 8 months ago
I’d be a lot more impressed in people were shooting at NASA’s robots.
BarbecueCowboy@lemmy.world 8 months ago
I’m obsessed with the idea of a slow-paced FPS game now. Imagine logging in once or twice a day, picking a shot and seeing if whoever it is is still there the next day.
lolcatnip@reddthat.com 8 months ago
You may want to check out Superhot. It’s not nearly that slow, but the whole have runs in extreme slow motion.
FierySpectre@lemmy.world 8 months ago
Once I had a board game that was a lot like this. You controlled robots on a board, and had to plan out like 5 operations (turn/step/…) each round. Chaos ensues when you have 4 people hindering (or trying to) each other.
zalgotext@sh.itjust.works 8 months ago
With 30 ping
Cethin@lemmy.zip 8 months ago
Well NASA is essentially botting. It’s not like they need to sit there and give it every input. They tell it what to do and it follows a program. I could bot with that much ping if my bit is running locally on the game’s servers. Basically: NASA is full of cheaters.
frezik@midwest.social 8 months ago
In my day, we wish we had 100 ping. Kids these days think they’re hot shit.
expr@programming.dev 8 months ago
Yeah wtf, 100ms is great.
300ms is the average reaction time in humans. Less than 100ms reaction time would be insane and I’m pretty sure it’s something no one has actually achieved.
asm_x86@lemmy.world 8 months ago
For me these days my ping still jumps between 300 and 1k. 80ms is a good day
Guntrigger@sopuli.xyz 8 months ago
Good job there aren’t any bunnyhopping Martians to shoot with it.
Viking_Hippie@lemmy.world 8 months ago
As far as we know so far…
sam2099@lemmy.world 8 months ago
therealjcdenton@lemmy.zip 8 months ago
You made up a bullshit punchline just to use this image didn’t you
JackbyDev@programming.dev 8 months ago
Haven’t we all?
thessnake03@lemmy.world 8 months ago
Voyager has entered the chat
zqwzzle@lemmy.ca 8 months ago
This’ll be perfect when it’s about 19 hours after the original post.
anubis119@lemmy.world 8 months ago
I understand that Voyager is nearly one light day away, but I can’t comprehend it.
WhiskyTangoFoxtrot@lemmy.world 8 months ago
It seeks the Creator.
niktemadur@lemmy.world 8 months ago
Now THAT was the Voyager reboot we didn’t know we all wanted until it dropped.
mindbleach@sh.itjust.works 8 months ago
PvE.
gandalf_der_12te@lemmy.blahaj.zone 8 months ago
PvP - player vs ping
Omega_Jimes@lemmy.ca 8 months ago
If my match was against rocks I’d have no problem with ping that high.
Jimbo@yiffit.net 8 months ago
New Zealand has entered the chat
Ilovethebomb@lemm.ee 8 months ago
Lemmy.nz has had some serious problems with federation with World, and a few other instances, because the way federation works, or worked, is an item would be sent, the receiving server would acknowledge receipt, and the next thing would be sent.
We ended up four days behind at one point.
Heavybell@lemmy.world 8 months ago
If I get under 300ms ping it’s a good day.
lightnsfw@reddthat.com 8 months ago
Don’t let your ping hold you back. I bought one of the COD games a few years ago and my PC would not run it no matter what I did with the settings (I think my processor was the problem). Usually it crashed before I even got into a game but I was actually able to join 2 of them and it was like playing a PowerPoint presentation of COD. The one game I actually able to finish I was still in the middle of the pack for k/d…
Kolanaki@yiffit.net 8 months ago
We should put whatever latency compensation NASA uses in Vidya James.
MystikIncarnate@lemmy.ca 8 months ago
They don’t use anything for their latency. I’ve looked into the space network they have, what protocols they use and what they do about the massive delays… Just a little bit, I don’t know it super well or anything, but from my understanding, the “network” they use is more about assurance than delivery speed.
The publicly available version of what they use is called delay tolerant networking, which essentially uses a mesh of nodes that may, or may not be able to communicate to other nodes at any given time. As messages are sent, they are relayed from node to node as connectivity allows until they get to a base station for final delivery. It’s a bit like the mail system, but instead of large centralized sorting facilities, you only have local post offices. The message is sent from one office to another until it leapfrogs it’s way to the destination. It can wait at one post office indefinitely until a path opens up to the next one.
In the case of delay tolerant networking, it basically sends it along to the next station in the mesh, and that station will confirm the delivery of the information, which is when the sender can remove the message from its buffer.
Ideally, the nodes should have some type of non-volatile memory (like nvram) to store pending deliveries, so nodes don’t waste power trying to keep the information in their volatile memory (RAM).
Terrestrialy, we use DTN for tracking stuff like the movement of animals in large and unserviceable areas (where mobile networks like LTE, don’t exist), such as deserts and undeveloped forests. As the trackers on the animals come within range of another tracked animal, updates occur, and when either gets near enough to a base station to upload the information, then the updates are sent out to the records systems.
Don’t ask me how the logic works to figure out when to push data one way or another. I haven’t gotten that deep into the protocol yet.
Anyways, for NASA, the information is sent to satellites, which relays to the rover eventually. In NASA’s case, they can directly transmit, from Earth, using microwave arrays, to the satellites in orbit around Mars if we want.
I’m not sure on the specifics of how they have their version of DTN setup, so I’m only speculating at best.
They don’t mitigate latency, they simply account for it, and work with that as part of the problem.
Evilsandwichman@hexbear.net 8 months ago
Please don’t compare a state of the art computer with some lousy toy they fired into outer space
NocturnalMorning@lemmy.world 8 months ago
Step 1.) Send a command
Step 2.) Go to lunch
Step 3.) ???
Step 4.) Get back pretty pictures from mars
einlander@lemmy.world 8 months ago
Didn’t forget debugging, diagnosing, and reprogramming Voyage which has left the solar system.
purplemonkeymad@programming.dev 8 months ago
Can replace go to lunch with come back after the weekend.
NocturnalMorning@lemmy.world 8 months ago
Yeah, that was seriously impressive. I worked flight ops for a while. I couldn’t imagine having to refresh software from that far away.
Viking_Hippie@lemmy.world 8 months ago
I’m gonna need you to tell me step 0. I followed your instructions to the letter and all I got out of it was a very confused lunch.
Honytawk@lemmy.zip 8 months ago
Well, first you invent the universe