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Will there be live HD television from Mars with the Mars 2020 mission?
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Is it known if live HD television from Mars would be possible with the Mars 2020 rover mission and if an extra channel would be possible just for relaying HD tv to make live broadcasts possible ?
Especially the camera on the helicopter could be a great success with spectacular views !
mars data-transmission mars-2020 telecommunication
asked 4 hours ago
Conelisinspace
786429
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up vote
2
down vote
favorite
Is it known if live HD television from Mars would be possible with the Mars 2020 rover mission and if an extra channel would be possible just for relaying HD tv to make live broadcasts possible ?
Especially the camera on the helicopter could be a great success with spectacular views !
mars data-transmission mars-2020 telecommunication
asked 4 hours ago
Conelisinspace
786429
2
See the related question
– Uwe
3 hours ago
add a comment |Â
up vote
2
down vote
favorite
up vote
2
down vote
favorite
Is it known if live HD television from Mars would be possible with the Mars 2020 rover mission and if an extra channel would be possible just for relaying HD tv to make live broadcasts possible ?
Especially the camera on the helicopter could be a great success with spectacular views !
mars data-transmission mars-2020 telecommunication
asked 4 hours ago
Conelisinspace
786429
Is it known if live HD television from Mars would be possible with the Mars 2020 rover mission and if an extra channel would be possible just for relaying HD tv to make live broadcasts possible ?
Especially the camera on the helicopter could be a great success with spectacular views !
mars data-transmission mars-2020 telecommunication
mars data-transmission mars-2020 telecommunication
asked 4 hours ago
Conelisinspace
786429
asked 4 hours ago
Conelisinspace
786429
edited 2 hours ago
asked 4 hours ago
Conelisinspace
786429
asked 4 hours ago
Conelisinspace
786429
asked 4 hours ago
Conelisinspace
786429
786429
2
See the related question
– Uwe
3 hours ago
add a comment |Â
2
See the related question
– Uwe
3 hours ago
2
2
See the related question
– Uwe
3 hours ago
See the related question
– Uwe
3 hours ago
add a comment |Â
2 Answers
2
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oldest
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up vote
3
down vote
Live broadcasts (if at all possible) would be limited by the time an orbiter is overhead (so a few minutes per day).
"an extra channel" sounds a lot easier than it is. You'd have to add a new transmitter to the rover (impacting the mass and power budget for all other activities) and a new transmitter to the helicopter. Then you'd need a way to receive those broadcasts in parallel with the main science data, and current Mars orbiters aren't designed to do that. So you'd need a new orbiter as well, which costs a few hundred million.
in other words, no. Live broadcast is not feasible.
answered 3 hours ago
Hobbes
79.3k2216358
I will be with the million people who donates a few hundred dollar to get live tv with spectacular views from Mars !
– Conelisinspace
2 hours ago
Will there be no new orbiters in 2020 with greater relaying capability ?
– Conelisinspace
1 hour ago
@Conelisinspace You'd need either a satellite in geosynchronous orbit over the landing zone, or a bunch of satellites for coverage. Neither is likely to be a (billion dollar) priority just for a TV broadcast.
– ceejayoz
26 mins ago
No new orbiters that I know of. AIU, The Mars community is a bit worried about this as all the current orbiters are getting old.
– Hobbes
1 min ago
add a comment |Â
up vote
1
down vote
Hobbes' answer explains why live broadcast is currently not feasible from the Mars side. I'd like to complement it with why this is currently not feasible from the Earth side.
Mars power budgets are not generous, so by the time spacecraft transmissions get back to Earth they are incredibly faint. The only equipment used to reliably receive these signals is the Deep Space Network (or DSN), the largest and most sensitive scientific telecommunications system in the world.
Here's why this is a problem:
- The DSN has only 3 of the large 70m antennas (and you need the large ones for high data rates), which have to collectively cover all deep space missions (including Mars) for all countries which partner with NASA. Granted, each dish can be in contact with more than one mission at a time (there's an excellent page maintained by JPL indicating who is in active contact), but time is at a premium.
- Consequently, DSN time is very expensive. This question suggests costs of close to 5000 dollars an hour, plus setup and tear down fees.
- While there are 3 dishes, only one is going to be pointing at Mars at any given time, and there are a lot of Mars missions. Consequently slots are also at a premium. In fact, this issue is a real concern given the glut of Mars missions coming up in 2020.
Now, you might suggest "we shouldn't care how expensive or how exclusive it is, this is a flagship class mission" and these sorts of calls certainly do happen. The Mars Reconnaissance Orbiter commands 16 hours a day of DSN time. However, the Mars Reconnaissance Orbiter also states that this link tops out at 4 megabits per second, which leads us to the nail in the coffin:
- Best-case data rates from Mars are on the order of 4 Mbps, whereas even best-case-compressed-with-H.264 720p video needs 12 Mbps and 1080p needs closer to 22 Mbps. You would need to increase the link speed by a factor of at least 3 to get live, HD video.
Now, pre-recorded HD video is a different problem entirely, and is certainly feasible given enough local storage on the spacecraft and enough time to send it back to Earth bit-by-bit.
answered 21 mins ago
Bear
1,122620
add a comment |Â
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
3
down vote
Live broadcasts (if at all possible) would be limited by the time an orbiter is overhead (so a few minutes per day).
"an extra channel" sounds a lot easier than it is. You'd have to add a new transmitter to the rover (impacting the mass and power budget for all other activities) and a new transmitter to the helicopter. Then you'd need a way to receive those broadcasts in parallel with the main science data, and current Mars orbiters aren't designed to do that. So you'd need a new orbiter as well, which costs a few hundred million.
in other words, no. Live broadcast is not feasible.
answered 3 hours ago
Hobbes
79.3k2216358
I will be with the million people who donates a few hundred dollar to get live tv with spectacular views from Mars !
– Conelisinspace
2 hours ago
Will there be no new orbiters in 2020 with greater relaying capability ?
– Conelisinspace
1 hour ago
@Conelisinspace You'd need either a satellite in geosynchronous orbit over the landing zone, or a bunch of satellites for coverage. Neither is likely to be a (billion dollar) priority just for a TV broadcast.
– ceejayoz
26 mins ago
No new orbiters that I know of. AIU, The Mars community is a bit worried about this as all the current orbiters are getting old.
– Hobbes
1 min ago
add a comment |Â
up vote
3
down vote
Live broadcasts (if at all possible) would be limited by the time an orbiter is overhead (so a few minutes per day).
"an extra channel" sounds a lot easier than it is. You'd have to add a new transmitter to the rover (impacting the mass and power budget for all other activities) and a new transmitter to the helicopter. Then you'd need a way to receive those broadcasts in parallel with the main science data, and current Mars orbiters aren't designed to do that. So you'd need a new orbiter as well, which costs a few hundred million.
in other words, no. Live broadcast is not feasible.
answered 3 hours ago
Hobbes
79.3k2216358
I will be with the million people who donates a few hundred dollar to get live tv with spectacular views from Mars !
– Conelisinspace
2 hours ago
Will there be no new orbiters in 2020 with greater relaying capability ?
– Conelisinspace
1 hour ago
@Conelisinspace You'd need either a satellite in geosynchronous orbit over the landing zone, or a bunch of satellites for coverage. Neither is likely to be a (billion dollar) priority just for a TV broadcast.
– ceejayoz
26 mins ago
No new orbiters that I know of. AIU, The Mars community is a bit worried about this as all the current orbiters are getting old.
– Hobbes
1 min ago
add a comment |Â
up vote
3
down vote
up vote
3
down vote
Live broadcasts (if at all possible) would be limited by the time an orbiter is overhead (so a few minutes per day).
"an extra channel" sounds a lot easier than it is. You'd have to add a new transmitter to the rover (impacting the mass and power budget for all other activities) and a new transmitter to the helicopter. Then you'd need a way to receive those broadcasts in parallel with the main science data, and current Mars orbiters aren't designed to do that. So you'd need a new orbiter as well, which costs a few hundred million.
in other words, no. Live broadcast is not feasible.
answered 3 hours ago
Hobbes
79.3k2216358
Live broadcasts (if at all possible) would be limited by the time an orbiter is overhead (so a few minutes per day).
"an extra channel" sounds a lot easier than it is. You'd have to add a new transmitter to the rover (impacting the mass and power budget for all other activities) and a new transmitter to the helicopter. Then you'd need a way to receive those broadcasts in parallel with the main science data, and current Mars orbiters aren't designed to do that. So you'd need a new orbiter as well, which costs a few hundred million.
in other words, no. Live broadcast is not feasible.
answered 3 hours ago
Hobbes
79.3k2216358
answered 3 hours ago
Hobbes
79.3k2216358
answered 3 hours ago
Hobbes
79.3k2216358
answered 3 hours ago
Hobbes
79.3k2216358
79.3k2216358
I will be with the million people who donates a few hundred dollar to get live tv with spectacular views from Mars !
– Conelisinspace
2 hours ago
Will there be no new orbiters in 2020 with greater relaying capability ?
– Conelisinspace
1 hour ago
@Conelisinspace You'd need either a satellite in geosynchronous orbit over the landing zone, or a bunch of satellites for coverage. Neither is likely to be a (billion dollar) priority just for a TV broadcast.
– ceejayoz
26 mins ago
No new orbiters that I know of. AIU, The Mars community is a bit worried about this as all the current orbiters are getting old.
– Hobbes
1 min ago
add a comment |Â
I will be with the million people who donates a few hundred dollar to get live tv with spectacular views from Mars !
– Conelisinspace
2 hours ago
Will there be no new orbiters in 2020 with greater relaying capability ?
– Conelisinspace
1 hour ago
@Conelisinspace You'd need either a satellite in geosynchronous orbit over the landing zone, or a bunch of satellites for coverage. Neither is likely to be a (billion dollar) priority just for a TV broadcast.
– ceejayoz
26 mins ago
No new orbiters that I know of. AIU, The Mars community is a bit worried about this as all the current orbiters are getting old.
– Hobbes
1 min ago
I will be with the million people who donates a few hundred dollar to get live tv with spectacular views from Mars !
– Conelisinspace
2 hours ago
I will be with the million people who donates a few hundred dollar to get live tv with spectacular views from Mars !
– Conelisinspace
2 hours ago
Will there be no new orbiters in 2020 with greater relaying capability ?
– Conelisinspace
1 hour ago
Will there be no new orbiters in 2020 with greater relaying capability ?
– Conelisinspace
1 hour ago
@Conelisinspace You'd need either a satellite in geosynchronous orbit over the landing zone, or a bunch of satellites for coverage. Neither is likely to be a (billion dollar) priority just for a TV broadcast.
– ceejayoz
26 mins ago
@Conelisinspace You'd need either a satellite in geosynchronous orbit over the landing zone, or a bunch of satellites for coverage. Neither is likely to be a (billion dollar) priority just for a TV broadcast.
– ceejayoz
26 mins ago
No new orbiters that I know of. AIU, The Mars community is a bit worried about this as all the current orbiters are getting old.
– Hobbes
1 min ago
No new orbiters that I know of. AIU, The Mars community is a bit worried about this as all the current orbiters are getting old.
– Hobbes
1 min ago
add a comment |Â
up vote
1
down vote
Hobbes' answer explains why live broadcast is currently not feasible from the Mars side. I'd like to complement it with why this is currently not feasible from the Earth side.
Mars power budgets are not generous, so by the time spacecraft transmissions get back to Earth they are incredibly faint. The only equipment used to reliably receive these signals is the Deep Space Network (or DSN), the largest and most sensitive scientific telecommunications system in the world.
Here's why this is a problem:
- The DSN has only 3 of the large 70m antennas (and you need the large ones for high data rates), which have to collectively cover all deep space missions (including Mars) for all countries which partner with NASA. Granted, each dish can be in contact with more than one mission at a time (there's an excellent page maintained by JPL indicating who is in active contact), but time is at a premium.
- Consequently, DSN time is very expensive. This question suggests costs of close to 5000 dollars an hour, plus setup and tear down fees.
- While there are 3 dishes, only one is going to be pointing at Mars at any given time, and there are a lot of Mars missions. Consequently slots are also at a premium. In fact, this issue is a real concern given the glut of Mars missions coming up in 2020.
Now, you might suggest "we shouldn't care how expensive or how exclusive it is, this is a flagship class mission" and these sorts of calls certainly do happen. The Mars Reconnaissance Orbiter commands 16 hours a day of DSN time. However, the Mars Reconnaissance Orbiter also states that this link tops out at 4 megabits per second, which leads us to the nail in the coffin:
- Best-case data rates from Mars are on the order of 4 Mbps, whereas even best-case-compressed-with-H.264 720p video needs 12 Mbps and 1080p needs closer to 22 Mbps. You would need to increase the link speed by a factor of at least 3 to get live, HD video.
Now, pre-recorded HD video is a different problem entirely, and is certainly feasible given enough local storage on the spacecraft and enough time to send it back to Earth bit-by-bit.
answered 21 mins ago
Bear
1,122620
add a comment |Â
up vote
1
down vote
Hobbes' answer explains why live broadcast is currently not feasible from the Mars side. I'd like to complement it with why this is currently not feasible from the Earth side.
Mars power budgets are not generous, so by the time spacecraft transmissions get back to Earth they are incredibly faint. The only equipment used to reliably receive these signals is the Deep Space Network (or DSN), the largest and most sensitive scientific telecommunications system in the world.
Here's why this is a problem:
- The DSN has only 3 of the large 70m antennas (and you need the large ones for high data rates), which have to collectively cover all deep space missions (including Mars) for all countries which partner with NASA. Granted, each dish can be in contact with more than one mission at a time (there's an excellent page maintained by JPL indicating who is in active contact), but time is at a premium.
- Consequently, DSN time is very expensive. This question suggests costs of close to 5000 dollars an hour, plus setup and tear down fees.
- While there are 3 dishes, only one is going to be pointing at Mars at any given time, and there are a lot of Mars missions. Consequently slots are also at a premium. In fact, this issue is a real concern given the glut of Mars missions coming up in 2020.
Now, you might suggest "we shouldn't care how expensive or how exclusive it is, this is a flagship class mission" and these sorts of calls certainly do happen. The Mars Reconnaissance Orbiter commands 16 hours a day of DSN time. However, the Mars Reconnaissance Orbiter also states that this link tops out at 4 megabits per second, which leads us to the nail in the coffin:
- Best-case data rates from Mars are on the order of 4 Mbps, whereas even best-case-compressed-with-H.264 720p video needs 12 Mbps and 1080p needs closer to 22 Mbps. You would need to increase the link speed by a factor of at least 3 to get live, HD video.
Now, pre-recorded HD video is a different problem entirely, and is certainly feasible given enough local storage on the spacecraft and enough time to send it back to Earth bit-by-bit.
answered 21 mins ago
Bear
1,122620
add a comment |Â
up vote
1
down vote
up vote
1
down vote
Hobbes' answer explains why live broadcast is currently not feasible from the Mars side. I'd like to complement it with why this is currently not feasible from the Earth side.
Mars power budgets are not generous, so by the time spacecraft transmissions get back to Earth they are incredibly faint. The only equipment used to reliably receive these signals is the Deep Space Network (or DSN), the largest and most sensitive scientific telecommunications system in the world.
Here's why this is a problem:
- The DSN has only 3 of the large 70m antennas (and you need the large ones for high data rates), which have to collectively cover all deep space missions (including Mars) for all countries which partner with NASA. Granted, each dish can be in contact with more than one mission at a time (there's an excellent page maintained by JPL indicating who is in active contact), but time is at a premium.
- Consequently, DSN time is very expensive. This question suggests costs of close to 5000 dollars an hour, plus setup and tear down fees.
- While there are 3 dishes, only one is going to be pointing at Mars at any given time, and there are a lot of Mars missions. Consequently slots are also at a premium. In fact, this issue is a real concern given the glut of Mars missions coming up in 2020.
Now, you might suggest "we shouldn't care how expensive or how exclusive it is, this is a flagship class mission" and these sorts of calls certainly do happen. The Mars Reconnaissance Orbiter commands 16 hours a day of DSN time. However, the Mars Reconnaissance Orbiter also states that this link tops out at 4 megabits per second, which leads us to the nail in the coffin:
- Best-case data rates from Mars are on the order of 4 Mbps, whereas even best-case-compressed-with-H.264 720p video needs 12 Mbps and 1080p needs closer to 22 Mbps. You would need to increase the link speed by a factor of at least 3 to get live, HD video.
Now, pre-recorded HD video is a different problem entirely, and is certainly feasible given enough local storage on the spacecraft and enough time to send it back to Earth bit-by-bit.
answered 21 mins ago
Bear
1,122620
Hobbes' answer explains why live broadcast is currently not feasible from the Mars side. I'd like to complement it with why this is currently not feasible from the Earth side.
Mars power budgets are not generous, so by the time spacecraft transmissions get back to Earth they are incredibly faint. The only equipment used to reliably receive these signals is the Deep Space Network (or DSN), the largest and most sensitive scientific telecommunications system in the world.
Here's why this is a problem:
- The DSN has only 3 of the large 70m antennas (and you need the large ones for high data rates), which have to collectively cover all deep space missions (including Mars) for all countries which partner with NASA. Granted, each dish can be in contact with more than one mission at a time (there's an excellent page maintained by JPL indicating who is in active contact), but time is at a premium.
- Consequently, DSN time is very expensive. This question suggests costs of close to 5000 dollars an hour, plus setup and tear down fees.
- While there are 3 dishes, only one is going to be pointing at Mars at any given time, and there are a lot of Mars missions. Consequently slots are also at a premium. In fact, this issue is a real concern given the glut of Mars missions coming up in 2020.
Now, you might suggest "we shouldn't care how expensive or how exclusive it is, this is a flagship class mission" and these sorts of calls certainly do happen. The Mars Reconnaissance Orbiter commands 16 hours a day of DSN time. However, the Mars Reconnaissance Orbiter also states that this link tops out at 4 megabits per second, which leads us to the nail in the coffin:
- Best-case data rates from Mars are on the order of 4 Mbps, whereas even best-case-compressed-with-H.264 720p video needs 12 Mbps and 1080p needs closer to 22 Mbps. You would need to increase the link speed by a factor of at least 3 to get live, HD video.
Now, pre-recorded HD video is a different problem entirely, and is certainly feasible given enough local storage on the spacecraft and enough time to send it back to Earth bit-by-bit.
answered 21 mins ago
Bear
1,122620
answered 21 mins ago
Bear
1,122620
answered 21 mins ago
Bear
1,122620
answered 21 mins ago
Bear
1,122620
1,122620
add a comment |Â
add a comment |Â
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2
See the related question
– Uwe
3 hours ago