C/2021 S4 ( Tsuchinshan )

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Updated on April 11, 2024

Profile Discovery Date September 29, 2021 Magnitude 20.5 mag Discoverer Hai-bin Zhao (XuYi station, Purple Mountain Observatory) Pictures

Orbital Elements Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 T 2024 Jan. 2.88452 TT Rudenko q 6.6893411 (2000.0) P Q z +0.0061442 Peri. 72.92030 +0.20522907 -0.97829304 +/-0.0000015 Node 5.48358 +0.74424755 +0.13695176 e 0.9588994 Incl. 17.47834 +0.63559155 +0.15552151 >From 797 observations 2021 Sept. 8-2024 Mar. 19, mean residual 0".4.

Magnitudes Graph m1 = -3.5 + 5 log d + 20.0 log r

The orbital elements are published on M.P.E.C. 2024-F34. The magnitudes graphs are made with Comet for Windows.