C/2025 Q1 ( ATLAS )

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Updated on September 7, 2025

Profile Discovery Date August 27, 2025 Magnitude 19.8 mag Discoverer Asteroid Terrestrial-Impact Last Alert System (ATLAS) search program

Orbital Elements Epoch 2025 May 5.0 TT = JDT 2460800.5 T 2024 July 11.98717 TT Veres q 10.0999569 (2000.0) P Q z +0.0008386 Peri. 280.23455 -0.06797208 +0.86410374 +/-0.0000155 Node 326.95867 -0.03682383 -0.50169120 e 0.9915299 Incl. 66.15493 -0.99700742 -0.04038159 From 18 observations 2020 Jan. 31-2025 Sept. 2, mean residual 0".6.

Magnitudes Graph m1 = 4.5 + 5 log d + 10.0 log r

The orbital elements are published on M.P.E.C. 2025-R19. The magnitudes graphs are made with Comet for Windows.