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
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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 7 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 7 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 7 hours ago
dareToDiffer07dareToDiffer07
211
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asked 7 hours ago
dareToDiffer07dareToDiffer07
211
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asked 7 hours ago
dareToDiffer07dareToDiffer07
211
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asked 7 hours ago
dareToDiffer07dareToDiffer07
211
asked 7 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 6 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 6 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 6 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 6 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 6 hours ago
HobbesHobbes
90.7k2255406
answered 6 hours ago
HobbesHobbes
90.7k2255406
answered 6 hours ago
HobbesHobbes
90.7k2255406
answered 6 hours ago
HobbesHobbes
90.7k2255406
90.7k2255406
add a comment |
add a comment |
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