All Questions
Tagged with impact collision-avoidance
9
questions
8
votes
3
answers
290
views
How often do active satellites have to change course to avoid other active satellites?
I'm only aware of the ESA and SpaceX incident in 2019. Does this happen more regularly especially now with more active Starlink satellites and other constellations?
More importantly, are there efforts ...
- 159
3
votes
4
answers
1k
views
How can we avoid collisions when moving from one orbit to another?
Imagine that my ship is parked in LEO and needs to transfer to a higher orbit. It makes a Hohmann transfer and flies to the needed orbit by an elliptical trajectory. But this trajectory is crossing a ...
- 604
4
votes
1
answer
461
views
How much could a full-blown Starlink constellation contribute to a future Kessler scenario? What would be the worst-case scenario?
Discussions in comments below this answer to What is the biggest satellite constellation in space right now? have touched on risk vs reward and the Kessler Syndrome in the context of full-blown ...
- 149k
2
votes
0
answers
312
views
Use of thrusters for Collision Avoidance Maneuver
I'm building an orbit propagator that gives the position of two satellites at time T. The position are expressed in ECI and after that are being transformed in LVLH frame (as mentioned ECI to LVLH ...
4
votes
1
answer
233
views
What prevents all these man-made objects flying in space from colliding with each other?
Does NASA know the location of every object in orbit and they calculate satellite and shuttle launches around not hitting these objects or are they just rolling the dice that the probability of ...
- 181
2
votes
3
answers
174
views
Feasible way to detect masses without natural light in deep space?
While I was perusing the entries here on energy sources for interstellar travel, it occurred to me that a problem accompanying a low energy density in space distant from stars is darkness. Is there a ...
- 123
3
votes
1
answer
275
views
How predictable is one asteroid's trajectory?
If one fictitious probe mission was to impact an asteroid fast enough to destroy it using its kinetic energy, could the asteroid's trajectory be predicted accurately enough (plumes or emanations or ...
user19132
11
votes
1
answer
1k
views
How might one approach using AI (convolutional neural network) to predict collisions in orbit?
CNN's Tomorrow's Hero profile Meet Amber Yang. She's trying to prevent a space debris catastrophe describes an investigation into the use of a convolutional neural network (CNN) to predict possible ...
- 149k
9
votes
1
answer
576
views
Which two satellites had a 44% probability of collision at 2017-01-07 21:53 UTC?
I saw this message on space-track.org:
The JSpOC has identified a close approach between two non-maneuverable satellites in a sun-synchronous orbit (approximately 800km altitude) with a time of ...
- 149k