What Was That? - sort a strange light in the sky into everyday suspects

Saw an odd light in the sky? Pick up to 8 details (when, how long, lights, colour, motion, sound, how it ended, height - any may be not sure) and the page scores 9 everyday suspects (aircraft, a single satellite, a string of new satellites, a bright planet or star, sky lanterns, a drone, a meteor, a high balloon, a reflection on glass), ranks them by a fixed rule and plots them on a radar scope, free. One metered task gives the verdict by that rule (solved, likely, toss-up or still open) and explains the top 3 suspects both ways - what fits and what argues against - with a check for next time; the page re-checks the reply. A rule of thumb, not an official finding. Built on @lilmgenius/factchk.