Chandrayaan 2: Why is Vikram Lander's life limited to 14 Days?Why was the 100m Green Bank dish needed...
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Chandrayaan 2: Why is Vikram Lander's life limited to 14 Days?
Why was the 100m Green Bank dish needed together with DSN's 70m Goldstone dish to detect Chandrayaan-1 in lunar orbit?Brushing clean a Mars lander's solar panelsELI5: Why do they say that Israel would have been the fourth country to land a spacecraft on the Moon and why do they call it low cost?Why is the Chandrayaan lunar insertion so long?Chandrayaan-2 orbiter and lander communications with Earth (IDSN)What was the temperature of the Apollo 11 moon landing zone?Does Chandrayaan 2 use gravity assist?How will Chandrayaan-2 reach a polar orbit?Is there any way to determine the fate of Chandrayaan-2?Did the cold temperature of the lunar south pole cause Chandrayaan-2's on board electronics to fail?
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I do know that the 13-14 days of its scheduled life is limited by the duration of sunlight and once the far side of the moon goes dark, the lander will be in temperatures as low as -170° Celsius.
But why is the lander affected by this, given that even other satellites experience eclipses of the Earth, and the Moon, but they still have prolonged lives, and missions like Voyager were alive even when they went extremely far from the Sun?
lander temperature chandrayaan-spacecraft
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I do know that the 13-14 days of its scheduled life is limited by the duration of sunlight and once the far side of the moon goes dark, the lander will be in temperatures as low as -170° Celsius.
But why is the lander affected by this, given that even other satellites experience eclipses of the Earth, and the Moon, but they still have prolonged lives, and missions like Voyager were alive even when they went extremely far from the Sun?
lander temperature chandrayaan-spacecraft
asked 9 hours ago
shreyase99shreyase99
332 bronze badges
New contributor
shreyase99 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
I do know that the 13-14 days of its scheduled life is limited by the duration of sunlight and once the far side of the moon goes dark, the lander will be in temperatures as low as -170° Celsius.
But why is the lander affected by this, given that even other satellites experience eclipses of the Earth, and the Moon, but they still have prolonged lives, and missions like Voyager were alive even when they went extremely far from the Sun?
lander temperature chandrayaan-spacecraft
asked 9 hours ago
shreyase99shreyase99
332 bronze badges
New contributor
shreyase99 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
I do know that the 13-14 days of its scheduled life is limited by the duration of sunlight and once the far side of the moon goes dark, the lander will be in temperatures as low as -170° Celsius.
But why is the lander affected by this, given that even other satellites experience eclipses of the Earth, and the Moon, but they still have prolonged lives, and missions like Voyager were alive even when they went extremely far from the Sun?
lander temperature chandrayaan-spacecraft
lander temperature chandrayaan-spacecraft
asked 9 hours ago
shreyase99shreyase99
332 bronze badges
New contributor
shreyase99 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 9 hours ago
shreyase99shreyase99
332 bronze badges
New contributor
shreyase99 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 9 hours ago
shreyase99shreyase99
332 bronze badges
New contributor
shreyase99 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked 9 hours ago
shreyase99shreyase99
332 bronze badges
asked 9 hours ago
shreyase99shreyase99
332 bronze badges
332 bronze badges
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shreyase99 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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1 Answer
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Orbiting satellites can still have problems with eclipses, from loss of both power and heat but the total time is normally measured in minutes so simply having enough battery power to keep electronics running (and producing heat) and some basic insulation will allow temperature control.
For unlit periods in days heat from nuclear decay is often used, possibly in conjunction with similar electric power sources. These however are complicated to generate the isotopes for and politically problematic to launch.
So a simple and low risk lander design is limited to operation for the period that solar power and heat is available, after which most likely the batteries will suffer irreversible freezing damage.
There are various design options around this, but all of them add cost and complications that may not have been considered worthwhile for this mission.
answered 8 hours ago
GremlinWrangerGremlinWranger
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1 Answer
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1 Answer
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$begingroup$
Orbiting satellites can still have problems with eclipses, from loss of both power and heat but the total time is normally measured in minutes so simply having enough battery power to keep electronics running (and producing heat) and some basic insulation will allow temperature control.
For unlit periods in days heat from nuclear decay is often used, possibly in conjunction with similar electric power sources. These however are complicated to generate the isotopes for and politically problematic to launch.
So a simple and low risk lander design is limited to operation for the period that solar power and heat is available, after which most likely the batteries will suffer irreversible freezing damage.
There are various design options around this, but all of them add cost and complications that may not have been considered worthwhile for this mission.
answered 8 hours ago
GremlinWrangerGremlinWranger
3,9894 silver badges21 bronze badges
$endgroup$
add a comment |
$begingroup$
Orbiting satellites can still have problems with eclipses, from loss of both power and heat but the total time is normally measured in minutes so simply having enough battery power to keep electronics running (and producing heat) and some basic insulation will allow temperature control.
For unlit periods in days heat from nuclear decay is often used, possibly in conjunction with similar electric power sources. These however are complicated to generate the isotopes for and politically problematic to launch.
So a simple and low risk lander design is limited to operation for the period that solar power and heat is available, after which most likely the batteries will suffer irreversible freezing damage.
There are various design options around this, but all of them add cost and complications that may not have been considered worthwhile for this mission.
answered 8 hours ago
GremlinWrangerGremlinWranger
3,9894 silver badges21 bronze badges
$endgroup$
add a comment |
$begingroup$
Orbiting satellites can still have problems with eclipses, from loss of both power and heat but the total time is normally measured in minutes so simply having enough battery power to keep electronics running (and producing heat) and some basic insulation will allow temperature control.
For unlit periods in days heat from nuclear decay is often used, possibly in conjunction with similar electric power sources. These however are complicated to generate the isotopes for and politically problematic to launch.
So a simple and low risk lander design is limited to operation for the period that solar power and heat is available, after which most likely the batteries will suffer irreversible freezing damage.
There are various design options around this, but all of them add cost and complications that may not have been considered worthwhile for this mission.
answered 8 hours ago
GremlinWrangerGremlinWranger
3,9894 silver badges21 bronze badges
$endgroup$
Orbiting satellites can still have problems with eclipses, from loss of both power and heat but the total time is normally measured in minutes so simply having enough battery power to keep electronics running (and producing heat) and some basic insulation will allow temperature control.
For unlit periods in days heat from nuclear decay is often used, possibly in conjunction with similar electric power sources. These however are complicated to generate the isotopes for and politically problematic to launch.
So a simple and low risk lander design is limited to operation for the period that solar power and heat is available, after which most likely the batteries will suffer irreversible freezing damage.
There are various design options around this, but all of them add cost and complications that may not have been considered worthwhile for this mission.
answered 8 hours ago
GremlinWrangerGremlinWranger
3,9894 silver badges21 bronze badges
answered 8 hours ago
GremlinWrangerGremlinWranger
3,9894 silver badges21 bronze badges
answered 8 hours ago
GremlinWrangerGremlinWranger
3,9894 silver badges21 bronze badges
answered 8 hours ago
GremlinWrangerGremlinWranger
3,9894 silver badges21 bronze badges
3,9894 silver badges21 bronze badges
add a comment |
add a comment |
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