4 ms·

This is really nice, but I want more data. Everything of course only if publically available: - Where are the probes located right now (map)? - what is their

This is really nice, but I want more data. Everything of course only if publically available: - Where are the probes located right now (map)? - what is their trajectory/target location? - what does the data look like being transmitted (I.e. Voyager isn’t more than a blip, or is it)? - what Kind of data could be still gathered, e.g. could we ask the Probe to „take a picture“ or would the bandwidth simply not be enough?

gspr 6y ago
> (I.e. Voyager isn’t more than a blip, or is it)? According to [1], as we speak the DSS 14 antenna at Goldstone is receiving Voyager 1 data at a whooping 160 bits/sec. [1] https://eyes.nasa.gov/dsn/dsn.html https://eyes.nasa.gov/dsn/dsn.html
- cgb223 6y ago
  How quickly is the bit rate degrading from Voyager? Like if it’s 160 bits per second now, how long until it’s 100 bits per second? 10? 1?
  - gspr 6y ago
    Interesting question! At any rate, I believe death is imminent anyway: in a few years, the RTGs will have degraded so far that no single instrument can be powered :-(
OnlyOneCannolo 6y ago
Map: https://armchairastronautics.blogspot.com/p/solar-system-missions.html https://armchairastronautics.blogspot.com/p/solar-system-mis... An example of what a signal from a probe looks like: http://spacecollege.org/isee3/video-recording-both-isee-3-transponders-at-arecibo-after-first-contact.html http://spacecollege.org/isee3/video-recording-both-isee-3-tr...
argvargc 6y ago
Yourself and others interested in detail, may appreciate Daniel Estévez's recent post on his use of GNU Radio and the Allen Telescope Array to detect Voyager 1 transmissions: https://destevez.net/2021/02/voyager-1-single-dish-detection-at-allen-telescope-array/ https://destevez.net/2021/02/voyager-1-single-dish-detection... Also this JPL document on both Voyagers is packed. Check out the chart on page 44, regarding diminishing bitrates over the coming years: https://descanso.jpl.nasa.gov/monograph/series13/DeepCommo_Chapter3--141029.pdf https://descanso.jpl.nasa.gov/monograph/series13/DeepCommo_C...

gspr 6y ago

> (I.e. Voyager isn’t more than a blip, or is it)? According to [1], as we speak the DSS 14 antenna at Goldstone is receiving Voyager 1 data at a whooping 160 bits/sec. [1] https://eyes.nasa.gov/dsn/dsn.html https://eyes.nasa.gov/dsn/dsn.html

cgb223 6y ago
How quickly is the bit rate degrading from Voyager? Like if it’s 160 bits per second now, how long until it’s 100 bits per second? 10? 1?
- gspr 6y ago
  Interesting question! At any rate, I believe death is imminent anyway: in a few years, the RTGs will have degraded so far that no single instrument can be powered :-(

OnlyOneCannolo 6y ago

Map: https://armchairastronautics.blogspot.com/p/solar-system-missions.html https://armchairastronautics.blogspot.com/p/solar-system-mis... An example of what a signal from a probe looks like: http://spacecollege.org/isee3/video-recording-both-isee-3-transponders-at-arecibo-after-first-contact.html http://spacecollege.org/isee3/video-recording-both-isee-3-tr...

argvargc 6y ago

Yourself and others interested in detail, may appreciate Daniel Estévez's recent post on his use of GNU Radio and the Allen Telescope Array to detect Voyager 1 transmissions: https://destevez.net/2021/02/voyager-1-single-dish-detection-at-allen-telescope-array/ https://destevez.net/2021/02/voyager-1-single-dish-detection... Also this JPL document on both Voyagers is packed. Check out the chart on page 44, regarding diminishing bitrates over the coming years: https://descanso.jpl.nasa.gov/monograph/series13/DeepCommo_Chapter3--141029.pdf https://descanso.jpl.nasa.gov/monograph/series13/DeepCommo_C...