What is crossrange and downrange for an entry vehicle?
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I have been searching the terms online but still can't get a more intuitive understanding. If you could refer me to some website, book or if you could offer me an explanation I would really appreciate it!
Thanks!
reentry entry-descent-landing
asked 11 hours ago
dareToDiffer07dareToDiffer07
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$begingroup$
I have been searching the terms online but still can't get a more intuitive understanding. If you could refer me to some website, book or if you could offer me an explanation I would really appreciate it!
Thanks!
reentry entry-descent-landing
asked 11 hours ago
dareToDiffer07dareToDiffer07
211
New contributor
dareToDiffer07 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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add a comment |
$begingroup$
I have been searching the terms online but still can't get a more intuitive understanding. If you could refer me to some website, book or if you could offer me an explanation I would really appreciate it!
Thanks!
reentry entry-descent-landing
asked 11 hours ago
dareToDiffer07dareToDiffer07
211
New contributor
dareToDiffer07 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
I have been searching the terms online but still can't get a more intuitive understanding. If you could refer me to some website, book or if you could offer me an explanation I would really appreciate it!
Thanks!
reentry entry-descent-landing
reentry entry-descent-landing
asked 11 hours ago
dareToDiffer07dareToDiffer07
211
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asked 11 hours ago
dareToDiffer07dareToDiffer07
211
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asked 11 hours ago
dareToDiffer07dareToDiffer07
211
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asked 11 hours ago
dareToDiffer07dareToDiffer07
211
asked 11 hours ago
dareToDiffer07dareToDiffer07
211
211
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Downrange is the distance traveled in the direction of flight. Imagine the orbit of a spacecraft as a circle around the Earth, 'downrange' is the distance traveled along this path. When you do a ballistic (uncontrolled) reentry, this is the path you travel.
Crossrange comes into play when you make a turn, and you deviate from your orbit. It's the distance between the spacecraft and the path of its original orbit.
My own image, it's a top view of the original orbit and the effect of making a turn early in the reentry trajectory.
The Shuttle was capable of a large crossrange distance on reentry: they wanted to be able to land ~2000 km away from the orbital path. This meant they could launch from Vandenberg in California into a polar orbit, make 1 orbit and then land back in California. That 1 orbit took 90 minutes, in which the Earth rotated by ~2000 km, so a downrange landing would put the Shuttle in the Pacific, 2000 km off the West coast.
answered 10 hours ago
HobbesHobbes
90.7k2255406
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1 Answer
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$begingroup$
Downrange is the distance traveled in the direction of flight. Imagine the orbit of a spacecraft as a circle around the Earth, 'downrange' is the distance traveled along this path. When you do a ballistic (uncontrolled) reentry, this is the path you travel.
Crossrange comes into play when you make a turn, and you deviate from your orbit. It's the distance between the spacecraft and the path of its original orbit.
My own image, it's a top view of the original orbit and the effect of making a turn early in the reentry trajectory.
The Shuttle was capable of a large crossrange distance on reentry: they wanted to be able to land ~2000 km away from the orbital path. This meant they could launch from Vandenberg in California into a polar orbit, make 1 orbit and then land back in California. That 1 orbit took 90 minutes, in which the Earth rotated by ~2000 km, so a downrange landing would put the Shuttle in the Pacific, 2000 km off the West coast.
answered 10 hours ago
HobbesHobbes
90.7k2255406
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add a comment |
$begingroup$
Downrange is the distance traveled in the direction of flight. Imagine the orbit of a spacecraft as a circle around the Earth, 'downrange' is the distance traveled along this path. When you do a ballistic (uncontrolled) reentry, this is the path you travel.
Crossrange comes into play when you make a turn, and you deviate from your orbit. It's the distance between the spacecraft and the path of its original orbit.
My own image, it's a top view of the original orbit and the effect of making a turn early in the reentry trajectory.
The Shuttle was capable of a large crossrange distance on reentry: they wanted to be able to land ~2000 km away from the orbital path. This meant they could launch from Vandenberg in California into a polar orbit, make 1 orbit and then land back in California. That 1 orbit took 90 minutes, in which the Earth rotated by ~2000 km, so a downrange landing would put the Shuttle in the Pacific, 2000 km off the West coast.
answered 10 hours ago
HobbesHobbes
90.7k2255406
$endgroup$
add a comment |
$begingroup$
Downrange is the distance traveled in the direction of flight. Imagine the orbit of a spacecraft as a circle around the Earth, 'downrange' is the distance traveled along this path. When you do a ballistic (uncontrolled) reentry, this is the path you travel.
Crossrange comes into play when you make a turn, and you deviate from your orbit. It's the distance between the spacecraft and the path of its original orbit.
My own image, it's a top view of the original orbit and the effect of making a turn early in the reentry trajectory.
The Shuttle was capable of a large crossrange distance on reentry: they wanted to be able to land ~2000 km away from the orbital path. This meant they could launch from Vandenberg in California into a polar orbit, make 1 orbit and then land back in California. That 1 orbit took 90 minutes, in which the Earth rotated by ~2000 km, so a downrange landing would put the Shuttle in the Pacific, 2000 km off the West coast.
answered 10 hours ago
HobbesHobbes
90.7k2255406
$endgroup$
Downrange is the distance traveled in the direction of flight. Imagine the orbit of a spacecraft as a circle around the Earth, 'downrange' is the distance traveled along this path. When you do a ballistic (uncontrolled) reentry, this is the path you travel.
Crossrange comes into play when you make a turn, and you deviate from your orbit. It's the distance between the spacecraft and the path of its original orbit.
My own image, it's a top view of the original orbit and the effect of making a turn early in the reentry trajectory.
The Shuttle was capable of a large crossrange distance on reentry: they wanted to be able to land ~2000 km away from the orbital path. This meant they could launch from Vandenberg in California into a polar orbit, make 1 orbit and then land back in California. That 1 orbit took 90 minutes, in which the Earth rotated by ~2000 km, so a downrange landing would put the Shuttle in the Pacific, 2000 km off the West coast.
answered 10 hours ago
HobbesHobbes
90.7k2255406
answered 10 hours ago
HobbesHobbes
90.7k2255406
answered 10 hours ago
HobbesHobbes
90.7k2255406
answered 10 hours ago
HobbesHobbes
90.7k2255406
90.7k2255406
add a comment |
add a comment |
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