Nakano Note (Nakano wa Kangaeru noda) NK 5588 C/2025 L1 (ATLAS)
The following improved orbital elements, by S. Nakano, are from 123 observations 2025 May 11 to 2026 May 21. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.76 arc second. Residuals for 2026 May observations were +7" for Right Ascension and -8" for Declination from an orbit in NK 5556. See the previous orbits in CBET 5566, NK 5475 and NK 5556. Epoch = 2025 Dec. 31.0 TT T = 2026 Jan. 12.73511 +/- 0.00019 (m.e.) TT Peri. = 341.25078 +/- 0.00008 Node = 208.11027 +/- 0.00005 (2000.0) Inc. = 114.13616 +/- 0.00005 q = 1.6796683 +/- 0.0000011 AU e = 1.0015020 +/- 0.0000048 1/a = -0.0008942 +/- 0.0000029 1/AU origin = -0.000014 (Q= 8) future = -0.000617 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2024/ 250708 W68 0.6+ 0.4+ 260128 E94 (3.6+ 4.3+) 241001 F51 (2.6- 5.3-) 250708 W68 0.4- 0.1+ 260128 E94 (3.1+ 2.6+) 241001 F51 (2.7- 5.7-) 250708 E62 0.6- 0.6+ 260130 E94 (5.3+ 5.0+) 241001 F51 (2.6- 5.8-) 250708 E62 0.4- 0.9+ 260130 E94 (3.7+ 3.9+) 2025/ 250805 W68 0.1- 1.0+ 260130 E94 (2.0+ 3.5+) 250511 W68 1.5- 0.4+ 250805 W68 0.5+ 0.5+ 260201 349 1.6- 0.2+ 250511 W68 0.3+ 1.5- 250805 W68 0.6- 0.8+ 260201 349 1.1- 0.7+ 250511 W68 1.7- 1.0- 250805 W68 0.1+ 0.8+ 260205 I52 0.5+ 0.5- 250513 M22 1.3- 0.1- 250812 M22 0.6- 0.2- 260205 I52 0.4+ 0.7- 250513 M22 1.5- 1.2- 250812 M22 0.5- 0.1- 260205 I52 0.1+ 0.7- 250517 W68 0.8- 1.0+ 250812 M22 0.8- 0.3+ 260205 I52 0.4- 0.7- 250517 W68 0.2- 1.2- 250818 E62 0.3+ 0.8+ 260205 I52 1.2- 1.0+ 250517 W68 1.2- 0.5- 250818 E62 0.1+ 0.4+ 260206 X07 1.8+ 0.9- 250606 W68 1.2- 0.8- 250818 E62 0.6+ 0.4+ 260206 X07 1.6+ 0.7- 250606 W68 0.6- 0.3+ 250818 E62 0.0 0.4+ 260212 323 1.4- 1.7- 250606 W68 1.2- 0.5+ 250906 E94 0.9+ 0.6+ 260212 323 1.0- 1.1+ 250606 W68 0.9- 0.3+ 250906 E94 0.4+ 0.6+ 260212 323 1.1- 1.7- 250607 X09 0.3- 0.1- 250906 E94 0.2+ 0.8+ 260213 W92 0.4- 1.2- 250607 X09 0.6- 0.3- 2026/ 260213 W92 0.2- 1.3- 250607 X09 0.1- 0.0 260102 X07 0.5- 0.4- 260213 W92 0.1- 1.7- 250607 X09 0.0 0.1+ 260102 X07 0.6- 0.9- 260213 323 1.7- 1.3- 250608 L81 0.7- 0.1+ 260116 Q59 1.1+ 0.2- 260213 323 1.1- 1.4- 250608 L81 0.8- 0.0 260116 Q59 1.2+ 0.0 260213 323 (1.6- 2.2-) 250609 194 0.9- 0.0 260116 Q59 0.5+ 0.8+ 260213 Q14 1.7+ 0.1+ 250609 194 0.6- 0.1- 260117 T08 0.6- 0.0 260213 Q14 0.2+ 1.5- 250609 194 0.8- 0.0 260117 T08 0.2+ 0.2- 260215 323 (2.2- 2.0-) 250609 X03 0.7- 0.6- 260117 T08 0.7+ 0.2+ 260215 323 0.3+ 0.1- 250609 X03 0.7- 0.6- 260117 T08 0.5- 0.8- 260215 323 (2.4- 2.0+) 250609 X03 0.8- 0.7- 260117 E41 0.5+ 0.6- 260216 323 (0.2- 2.9-) 250609 X07 0.9- 0.3- 260117 E41 0.4- 0.5- 260216 323 (2.0- 1.9-) 250609 X07 0.9- 0.2- 260117 E41 0.2- 0.1+ 260216 323 (2.0- 1.0-) 250609 X03 0.7- 0.3- 260119 T05 0.2- 0.6- 260217 323 (5.4- 0.3-) 250612 M22 1.0- 0.6- 260119 T05 0.7- 1.1- 260217 323 (4.0- 1.7-) 250612 M22 1.0- 0.1- 260119 T05 1.2+ 0.1+ 260217 323 (3.5- 1.2+) 250612 M22 0.5- 0.3+ 260119 T05 (2.2+ 0.6+) 260217 900 (2.9- 1.1-) 250612 M22 0.8- 0.1+ 260120 T05 1.3- 1.2- 260217 900 1.0- 0.7- 250618 W68 0.5- 0.5- 260120 T05 0.7+ 0.1- 260219 323 (4.0- 1.4+) 250618 W68 0.9- 0.2- 260120 T05 0.8+ 0.7- 260219 323 (3.3- 0.5+) 250618 W68 0.7- 0.5+ 260120 T05 0.9- 0.9- 260219 323 0.5- 1.6- 250618 W68 0.2+ 0.1+ 260120 Q14 (3.3+ 4.6+) 260220 Q14 (0.5- 4.1+) 250702 M22 0.6- 0.0 260120 Q14 (3.0+ 0.2+) 260220 Q14 (1.3- 2.0-) 250702 M22 0.1+ 0.1+ 260121 M22 0.3+ 0.2- 260314 S24 0.2+ 1.3+ 250702 M22 0.3- 0.2+ 260121 M22 0.0 0.1+ 260314 S24 0.4+ 1.4+ 250702 M22 0.0 0.0 260121 M22 0.8- 0.9- 260315 S24 1.1+ 0.5- 250704 W68 0.7- 0.6+ 260121 M22 1.8+ 0.6- 260319 Y87 (4.5+ 4.4-) 250704 W68 0.3- 0.4- 260122 E94 (3.0+ 3.2+) 260319 Y87 0.3- 1.6- 250704 W68 0.3- 0.1+ 260122 E94 (2.5+ 3.4+) 260319 Y87 0.9- 1.3- 250704 W68 0.3+ 0.5+ 260122 E94 (2.8+ 2.5+) 260416 L27 1.7- 0.3+ 250707 X07 0.2- 0.2+ 260128 W68 0.0 0.5+ 260416 L27 (2.2- 0.3+) 250707 X07 0.0 0.3+ 260128 W68 0.2- 0.2- 260521 A03 0.0 1.2- 250707 X07 0.1+ 0.0 260128 W68 0.5- 0.8- 260521 A03 0.5+ 0.3- 250708 W68 0.4+ 0.3- 260128 W68 0.3+ 0.2- 250708 W68 0.3+ 0.1+ 260128 E94 (3.3+ 3.4+) ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2026 June 13