ATLAS

Orbital elements

Semi-major axis

-165.135 AU

Eccentricity

1.002

Inclination

147.92°

Perihelion

0.336 AU

Longitude of ascending node

97.64°

Argument of periapsis

271.33°

Epoch · J2000

JD 2460956.95248 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 60.9 LD

0.1564 AU

Orbit quality

Observations used

278

Data arc

62 days

First observed

5 November 2025

Last observed

6 January 2026

Residual RMS

0.65 ″

Solution · Davide Farnocchia

27 February 2026

Visual & observation

Absolute magnitude (H)

14.7

Total magnitude M₁ · K₁ 34.5

14.7

Discovery & classification

Also known as 2025 K1-B