I saw NOAA-18. I tuned off the lights and then, like magic, mid-pass, a white dot appeared almost directly overhead. I could keep eyes on it for several minutes. The satellite glided across the sky, so much faster than I had imagine. It makes sense, that the satellite appears to accelerate when directly overhead and then slow down as it approaches the horizon. Despite this logic, I had always imagined it moving at a constant speed, like the hand of a clock. I am twitching with excitement.