C/2025 T1 ( ATLAS )

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Updated on December 22, 2025

Profile Discovery Date October 11, 2025 Magnitude 17.5 mag Discoverer Asteroid Terrestrial-Impact Last Alert System (ATLAS) search program Pictures

Orbital Elements Epoch 2025 Nov. 21.0 TT = JDT 2461000.5 T 2025 Dec. 2.37152 TT Pike q 1.1088467 (2000.0) P Q z -0.0000509 Peri. 114.13694 +0.63534707 +0.56078579 +/-0.0000405 Node 140.49438 -0.18569917 -0.55636668 e 1.0000564 Incl. 123.43158 +0.74956649 -0.61316834 From 619 observations 2025 Oct. 11-Dec. 17, mean residual 0".5.

Finding Charts

Magnitudes Graph m1 = 8.5 + 5 log d + 20.0 log r

The orbital elements are published on M.P.E.C. 2025-Y51. The charts are made with StellaNavigator Ver.11 (AstroArts). The magnitudes graphs are made with Comet for Windows.