P/2025 D4 ( ATLAS )

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Updated on August 11, 2025

Profile Discovery Date February 23, 2025 Magnitude 19.2 mag Discoverer Asteroid Terrestrial-Impact Last Alert System (ATLAS) search program Pictures

Orbital Elements Epoch 2025 May 5.0 TT = JDT 2460800.5 T 2025 Feb. 14.28351 TT Pike q 3.2549435 (2000.0) P Q n 0.03710566 Peri. 332.88909 -0.88470746 +0.41113458 a 8.9024452 Node 233.11999 -0.36219220 -0.90295973 e 0.6343765 Incl. 15.94064 -0.29344424 -0.12502837 P 26.6 From 308 observations 2023 Dec. 10-2025 July 28, mean residual 0".5.

Magnitudes Graph m1 = 2.8 + 5 log d + 25.0 log r(t - 70)

The orbital elements are published on M.P.E.C. 2025-O159. The magnitudes graphs are made with Comet for Windows.