What appears to be a string of satellites moving nearly overhead towards NW at 10:30pm to 10:50pm Near Eagle River WI on Sun May 26, 2019.

Was lead by 3 equally spaced (approx 1/2 in total length of three at arms length), appro magnitude 4-3. A couple of min later approx 10 other objects followed in the same line but much dimmer.

Clear night. No Moon.

What was this phenomenon?