Asteroid Impact Crater Size: Function of Diameter

[mersecske]

What is the crater size for an asteroid impact as a function of the asteroid diameter?
Are there any estimated function?

 

[phinds]

I'd expect it has less to do with the diameter than the mass and speed. A slow-moving porous rock would hardly have the same effect as a fast-moving steel object of the same diameter, and a "normal" asteroid of rocky material would be somewhere in between, but would still depend on speed.

 

[russ_watters]

http://impact.ese.ic.ac.uk/ImpactEffects/

 

[zhermes]

What is the crater size for an asteroid impact as a function of the asteroid diameter?
Are there any estimated function?

Check this out: http://www.lpi.usra.edu/publications/books/CB-954/chapter3.pdf
And you might be interested in this thread: https://www.physicsforums.com/showthread.php?t=498135

 

[pmacias]

The size of an asteroid impact crater is indeed a function of the asteroid's diameter. As the diameter of the asteroid increases, so does the size of the crater it creates upon impact. This is due to the amount of kinetic energy and force that is released upon impact, which is directly proportional to the size of the asteroid.

There are various estimated functions that have been proposed to calculate the size of the crater based on the asteroid diameter. One commonly used function is the "Pierson-Melosh" equation, which takes into account the density and velocity of the asteroid, as well as the strength of the target material. However, it is important to note that these functions are still theoretical and may not accurately predict the crater size in all cases, as the actual impact can be affected by various factors such as the angle of impact, composition of the asteroid and target material, and the atmospheric conditions.

In addition, the size of the crater may also be influenced by the location of impact, as different surfaces and materials may have different levels of resistance to the impact. For example, an asteroid impacting a rocky surface may create a larger crater than one impacting a body of water.

Overall, while there are estimated functions for calculating the size of an asteroid impact crater based on its diameter, it is important to consider all the variables and factors that can affect the actual crater size. Further research and observations are needed to improve our understanding of this relationship.