Greetings: Iridiums 11 and 52 made potential flare passes over the Chicago area last (Saturday) night. Iridium 11 was seen making several rapid, brief, 0 mag flares as if in a tumble, just north of the part of the sky it would have flared in. Iridium 52 put on a normal show as seen with a near zero flare angle. Paul Sventek temporarily at 41d 47.39m N 87d 47.34m W