1.Retrograde orbit aligns within 5° of the ecliptic; p. [probability] .2%2.July–Nov 2025: showed a true sunward jet (anti-tail), not a geometric illusion3.Nucleus mass ≈106× 1I/Oumuamua and 103× 2I/Borisov, moving faster than both; p. <.1%4.Arrival timing placed it <10,000,000km of Mars, Venus, Jupiter and hidden from Earth at perihelion; p. .005%5.Gas plume: far more Ni than Fe (industrial-like Ni alloys) + Ni/CN ratio orders of magnitude above all comets incl. 2I/Borisov; p. <1%6.Gas plume: only 4% water by mass7.Extreme negative polarization, unprecedented; p. <1%8.Arrival within 9° of the “Wow!” signal; p. .6%9.Near perihelion: brightened faster than any comet and was bluer than the Sun10.Sunward + anti-solar jets demand unrealistically large surface area to absorb enough sunlight for sublimation11.Non-gravitational acceleration near perihelion implies ≥13% mass loss, yet no breakup12.Tightly collimated jets hold orientation across ~106 km in multiple solar directions despite rotation13.Perihelion tuned trajectory to pass within .5% of Jupiter's Hill Radius14.No dimming since perihelion15.16-hour brightness pulse16.Unexplained ionization17.Gold/Yellow SpectraWhat is it?
