General > General Technical Chat
Mars rover perseverance live stream
ali_asadzadeh:
Hi,
I want to know if is there any live video stream from the rover?
do we have this luxury?
Gyro:
I think the data rate is too slow. Nasa need to buffer it and then release occasional video clips. There must be lots of the available bandwidth that they are using for other 'science' instrumentation related purposes too.
Psi:
Nope.
That would use way to much bandwidth.
The rover can only communicate with earth at decent speed (max 250KBytes/s) for a short time per day when a mars comms satellite is overhead to relay it to earth, NASA use all of the time to send back still images and data.
During other times the rover can communicate directly to earth if it needs but it's super slow, under 400 bytes per second.
Livestreaming video from mars isn't going to happen until there is a communications satellite constellation around mars.
I'd be surprised if SpaceX doesn't already have a plan to put some modified Starlinks sats around mars. They could be at a much higher altitude as latency wouldn't be an issue. Higher altitude would mean much less sats are needed to get coverage of the entire planet.
My guess is they plan to do that as one of the early starship test missions to mars.
Gyro:
--- Quote from: Psi on February 25, 2021, 11:17:35 am ---I'd be surprised if SpaceX doesn't already have a plan to put some modified Starlinks sats around mars.
--- End quote ---
Just think of the backlash when the first inhabitants found that they couldn't get the internet. ;D
nali:
--- Quote from: Gyro on February 25, 2021, 11:29:40 am ---
--- Quote from: Psi on February 25, 2021, 11:17:35 am ---I'd be surprised if SpaceX doesn't already have a plan to put some modified Starlinks sats around mars.
--- End quote ---
Just think of the backlash when the first inhabitants found that they couldn't get the internet. ;D
--- End quote ---
Or more likely the first inhabitants have decent streaming speeds whilst rural areas here still struggle with dialup speeds :(
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