Nakano Note (Nakano wa Kangaeru noda) NK 5475 C/2025 L1 (ATLAS)
The following improved orbital elements, by S. Nakano, are from 69 observations 2024 Oct. 1 to 2025 Sept. 6. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.44 arc second. See an orbit in CBET 5566. Epoch = 2025 Dec. 31.0 TT T = 2026 Jan. 12.74475 +/- 0.00203 (m.e.) TT Peri. = 341.25992 +/- 0.00097 Node = 208.10989 +/- 0.00012 (2000.0) Inc. = 114.13664 +/- 0.00005 q = 1.6794767 +/- 0.0000144 AU e = 1.0013717 +/- 0.0000260 1/a = -0.0008167 +/- 0.0000155 1/AU origin = +0.000063 (Q= 7) future = -0.000540 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2024/ 250609 194 0.2+ 0.1+ 250707 X07 0.0 0.1+ 241001 F51 0.7- 0.2+ 250609 194 0.1- 0.2+ 250707 X07 0.2+ 0.2+ 241001 F51 0.8- 0.2- 250609 X03 0.1+ 0.5- 250707 X07 0.3+ 0.1- 241001 F51 0.8- 0.3- 250609 X03 0.0 0.4- 250708 W68 0.6+ 0.4- 2025/ 250609 X03 0.0 0.5- 250708 W68 0.5+ 0.1- 250511 W68 0.2- 0.8+ 250609 X07 0.1- 0.1- 250708 W68 0.8+ 0.2+ 250511 W68 1.7+ 1.0- 250609 X07 0.1- 0.1- 250708 W68 0.2- 0.1- 250511 W68 0.4- 0.5- 250609 X03 0.0 0.1- 250708 E62 0.5- 0.4+ 250513 M22 0.1+ 0.3+ 250612 M22 0.3- 0.5- 250708 E62 0.3- 0.8+ 250513 M22 0.2- 0.7- 250612 M22 0.3- 0.0 250805 W68 0.3- 0.6+ 250517 W68 0.4+ 1.4+ 250612 M22 0.2+ 0.4+ 250805 W68 0.4+ 0.1+ 250517 W68 1.1+ 0.8- 250612 M22 0.1- 0.2+ 250805 W68 0.8- 0.4+ 250517 W68 0.1+ 0.0 250618 W68 0.0 0.4- 250805 W68 0.1- 0.4+ 250606 W68 0.3- 0.6- 250618 W68 0.3- 0.1- 250812 M22 0.8- 0.7- 250606 W68 0.2+ 0.5+ 250618 W68 0.1- 0.5+ 250812 M22 0.7- 0.5- 250606 W68 0.4- 0.7+ 250618 W68 0.7+ 0.2+ 250812 M22 1.0- 0.2- 250606 W68 0.0 0.5+ 250702 M22 0.3- 0.1- 250818 E62 0.1+ 0.2+ 250607 X09 0.5+ 0.1+ 250702 M22 0.4+ 0.0 250818 E62 0.0 0.2- 250607 X09 0.2+ 0.1- 250702 M22 0.0 0.1+ 250818 E62 0.4+ 0.1- 250607 X09 0.7+ 0.1+ 250702 M22 0.3+ 0.1- 250818 E62 0.2- 0.1- 250607 X09 0.8+ 0.3+ 250704 W68 0.4- 0.5+ 250906 E94 0.8+ 0.2- 250608 L81 0.1+ 0.2+ 250704 W68 0.1- 0.6- 250906 E94 0.3+ 0.1- 250608 L81 0.0 0.2+ 250704 W68 0.1- 0.0 250906 E94 0.0 0.1+ 250609 194 0.1- 0.2+ 250704 W68 0.5+ 0.4+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2025 Oct. 11