What were these lights I saw?

I was out late last night about 1am and I heard a low hum in the sky. I looked up and saw a long line of white lights clustered together moving high in the sky. I tried to take a photo, but it never came out, so here's a drawing. I couldn't count the lights but there was a lot in a tight straight formation and the line looked quite long.

Google suggests satellites but the pictures don't match and I'm sure you can't hear them. If I was a kid I'd swear it was santa claus.
What were these lights I saw?
What were these lights I saw?
Post Opinion