File:Baturinskaya Radar Station.jpeg



Note that primary radar view on crash area is obstructed.

Source: graphics: Baturinskaya Radar Station.

Location: Google maps, 45°50'16"N  39°27'37"E. Directions to Rossypnoe. Google distance gives 263.85 km away.

At 263.85 km distance, direct visibility horizon is at (or above) 5.47 km. (And also obstruction from secondary radar and clouds...)

As received signal scales as 1/d^4 with distance (1/d^2 for target illumination and another 1/d^2 receiving back), radar at Baturinskaya received back signal power will be 17% of the one at Ust' Donetsk, 171 km away from the crash.