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Comet

Tsuchinshan-ATLAS

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C/2023 A3 (Tsuchinshan-ATLAS)

Orbital elements

Semi-major axis
-4,104.394 AU
Eccentricity
1.0001
Inclination
139.11°
Perihelion
0.391 AU
Longitude of ascending node
21.56°
Argument of periapsis
308.49°
Epoch · J2000
JD 2460581.24085 (perihelion)
Orbit class · HYP
Hyperbolic comet
Earth MOID · 107.0 LD
0.2751 AU
Tisserand (Jupiter)
-0.583

Orbit quality

Observations used
7,329
Data arc
4.13 years
First observed
9 April 2022
Last observed
27 May 2026
Residual RMS
0.49 ″
Solution · Otto Matic
28 July 2026

Visual & observation

Absolute magnitude (H)
8.9
Total magnitude M₁ · K₁ 5.5
8.9

Discovery & classification

Also known as 2023 A3

Named

Sources