Watching videos and reactions to todays Dnipro IRBM/ICBM missile attack I noticed that the speed of the reentry vehicles stood out. Especially since we have a fresh comparison from Israel.
Thought it was a fun occasion for some #osint practice and basic math.🧵
Thought it was a fun occasion for some #osint practice and basic math.🧵
Comments
So I thought the IRBM/ICBM was hitting the ground that was much lower than that horizon point
👍 Thanks man
Clouds !
We can clearly see the RVs braking the cloud base and reach ground.
cloud base altitude is recorded by many weather stations and sites as https://meteologix.com provide recent historical data free of charge.
The video i have downloaded is 24 frames per second meaning that each frame is 41.66 milliseconds. So RVs took between 333 and 375 ms to traverse 300 meters
More specifically :
(cloud base height m ) / (time of flight ms)
gives us the meters per millisecond travelled by the RVs which we can then easily convert to kilometres per hour.