C/2026 Q1 ( ATLAS )

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Updated on October 31, 2026

Profile Discovery Date August 19, 2026 Magnitude 18.7 mag Discoverer Asteroid Terrestrial-Impact Last Alert System (ATLAS) search program

Orbital Elements Epoch 2026 June 9.0 TT = JDT 2461200.5 T 2026 July 17.03024 TT Pike q 2.1226244 (2000.0) P Q z +0.0262801 Peri. 302.47174 -0.31727912 +0.26480298 +/-0.0003897 Node 273.04159 -0.20272290 -0.95696666 e 0.9442173 Incl. 65.76871 -0.92641102 +0.11871901 From 67 observations 2026 Aug. 19-Oct. 8, mean residual 0".5.

Magnitudes Graph m1 = 13.0 + 5 log d + 10.0 log r

The orbital elements are published on M.P.E.C. 2026-U53. The magnitudes graphs are made with Comet for Windows.