ATLAS

Orbital elements

Semi-major axis

-136.715 AU

Eccentricity

1.0025

Inclination

147.93°

Perihelion

0.336 AU

Longitude of ascending node

97.67°

Argument of periapsis

271.42°

Epoch · J2000

JD 2460956.95527 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 60.3 LD

0.155 AU

Orbit quality

Observations used

107

Data arc

33 days

First observed

26 November 2025

Last observed

29 December 2025

Residual RMS

0.33 ″

Solution · Davide Farnocchia

10 January 2026

Visual & observation

Absolute magnitude (H)

11.1

Total magnitude M₁ · K₁ 38.3

11.1

Discovery & classification

Also known as 2025 K1-D