Nakano Note (Nakano wa Kangaeru noda) NK 5553 C/2026 A1 (MAPS)
The following improved orbital elements, by S. Nakano, are from 187 observations 2025 Dec. 19 to 2026 Feb. 9. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.58 arc second. See an orbit in CBET 5658. Epoch = 2026 Mar. 21.0 TT T = 2026 Apr. 4.59815 +/- 0.00223 (m.e.) TT Peri. = 86.35761 +/- 0.02517 Node = 7.89625 +/- 0.02394 (2000.0) Inc. = 144.49336 +/- 0.00036 q = 0.0057149 +/- 0.0000124 AU e = 0.9999623 +/- 0.0000004 1/a = +0.0065894 +/- 0.0000796 1/AU a = 151.8 AU P = 1870 years origin = +0.007098 (Q= 6) future = +0.006394 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2025/ 260115 G37 0.3- 0.3- 260117 194 0.0 0.2- 251218 M22 (2.2- 1.3-) 260115 G37 0.2- 0.4- 260117 M21 0.2- 0.1+ 251219 M22 0.2+ 0.6+ 260115 X07 0.6+ 0.4+ 260117 194 0.0 0.4- 251219 M22 0.3- 0.0 260115 X07 0.4- 0.0 260117 194 0.0 0.4- 251219 M22 0.6- 0.2- 260115 X07 0.7+ 0.3+ 260118 807 0.3- 0.1+ 251221 M22 1.2- 1.8- 260115 X07 0.2- 0.0 260118 807 0.3- 0.1- 251221 M22 (0.4- 2.9-) 260115 X07 0.5- 0.6+ 260118 807 0.2+ 0.1+ 251221 M22 0.6+ 0.1+ 260115 Q62 0.7+ 0.4- 260118 W74 0.6- 0.4- 251222 M22 0.3+ 1.4- 260115 Q62 0.2+ 0.2- 260118 W74 0.6- 0.4- 251226 T05 1.1- 1.6+ 260115 Q62 0.2+ 0.6+ 260118 I52 0.2+ 0.3+ 251226 T05 0.0 0.8+ 260115 O44 0.2- 0.1- 260118 I52 0.4- 0.6+ 251226 T05 0.2- 0.7+ 260115 O44 0.3- 0.2- 260118 I52 0.2+ 0.2+ 251226 T05 (0.0 2.0+) 260115 O44 0.3- 0.2- 260118 I52 0.0 0.2- 251227 M22 1.0+ 0.3+ 260115 N54 0.0 0.5- 260118 O44 0.3+ 0.1+ 251227 M22 1.7+ 0.6- 260115 N54 0.3+ 0.0 260118 O44 0.2- 0.2+ 2026/ 260115 N54 0.1- 0.6- 260118 Q62 0.1+ 0.3+ 260108 M22 0.2- 1.3+ 260115 L09 0.2- 0.7- 260118 Q62 0.4- 0.2- 260108 M22 0.5+ 0.5- 260115 L09 0.2- 0.4- 260118 Q62 0.2+ 0.4- 260108 M22 0.9- 0.5- 260115 L09 0.9+ 0.2+ 260118 Q62 0.6+ 0.1- 260108 M22 0.6+ 0.9+ 260116 W74 0.2- 0.1- 260118 Q62 0.4+ 0.1+ 260110 W68 (2.6+ 1.4+) 260116 W74 0.3- 0.4- 260118 Q62 0.2+ 0.3- 260110 W68 1.3+ 1.6+ 260116 W92 0.5+ 0.6+ 260118 194 0.3+ 0.6- 260110 W68 0.1- 1.2+ 260116 W92 0.1+ 1.3+ 260118 194 0.2+ 0.3- 260110 W68 (2.1+ 1.3+) 260116 W92 0.3- 0.4+ 260118 L09 0.1+ 0.2+ 260113 W94 0.1- 0.3- 260116 X07 0.4+ 1.2- 260118 194 0.2+ 0.1+ 260113 W94 0.0 0.2+ 260116 X07 0.5+ 0.8- 260118 L09 0.1- 0.6- 260113 W94 0.7+ 0.1- 260116 W05 0.1- 0.6- 260118 L09 0.2- 0.2- 260113 X10 0.3- 0.3+ 260116 X07 0.1+ 1.2- 260119 W05 0.2- 0.5+ 260113 X10 0.7+ 0.5+ 260116 X07 0.4+ 1.2- 260119 W05 0.4+ 1.0+ 260113 X10 0.0 0.4+ 260116 W92 0.1+ 0.3+ 260119 W05 0.5+ 0.7+ 260114 807 0.2- 0.0 260116 W05 0.6+ 0.3- 260119 Q62 0.9- 1.1- 260114 807 0.0 0.3- 260116 W86 0.4- 0.1- 260119 Q62 0.3- 0.6- 260114 807 0.3- 0.3- 260116 W92 0.2+ 0.4+ 260119 323 1.0+ 0.6+ 260114 I47 0.5+ 0.1- 260116 W05 0.9- 0.1+ 260119 O44 0.0 0.6- 260114 I47 0.2+ 0.9+ 260116 W86 0.5- 0.3- 260119 323 1.1- 1.5- 260114 W95 0.2- 0.4- 260116 W86 0.4- 0.3- 260119 323 0.1- 0.3+ 260114 W95 0.2- 0.0 260116 W86 0.2- 0.1- 260119 323 0.4+ 0.4+ 260114 W95 0.2- 0.2- 260116 W86 0.2- 0.3- 260119 323 0.6+ 0.5- 260114 X10 0.2+ 0.2- 260116 W86 0.4- 0.1- 260120 W62 0.6+ 0.3- 260114 X10 0.8+ 0.8+ 260116 G37 0.5- 0.4- 260120 W62 0.1+ 0.2- 260114 X10 1.1+ 1.2+ 260116 G37 0.4- 0.2- 260120 W62 0.2+ 0.3- 260114 T14 0.5- 0.4- 260116 G37 0.2- 0.1- 260120 W05 0.6- 0.2- 260114 T14 0.4- 0.4- 260116 Q62 0.0 1.1+ 260120 W05 0.4+ 0.0 260114 T14 0.3- 0.5- 260116 Q62 0.1- 0.6- 260120 W05 0.2+ 0.6+ 260114 T03 0.1- 0.2- 260116 Q62 0.6- 0.4- 260120 323 0.2+ 0.0 260114 T03 0.4+ 0.1- 260116 Q62 0.9+ 0.1- 260120 323 0.3- 0.4+ 260114 T03 0.1- 0.0 260116 Q62 0.2+ 0.5+ 260122 P87 0.7+ 0.8- 260114 P87 1.7+ 0.8+ 260116 O44 0.3- 0.2- 260122 P87 0.2+ 1.1+ 260114 P87 1.5+ 0.4+ 260116 O44 0.1+ 0.1- 260122 P87 1.3+ 0.9+ 260114 323 0.6- 0.0 260116 194 0.1- 0.2+ 260123 Q23 0.2- 0.1+ 260114 323 1.0- 0.1+ 260116 194 0.3- 0.2- 260123 Q23 0.0 0.5+ 260114 323 0.1- 0.1+ 260116 194 0.0 0.1- 260125 X07 0.9+ 0.5+ 260114 323 0.0 0.6- 260117 W74 0.1- 0.3- 260125 X07 0.3- 0.3- 260114 323 0.3- 0.0 260117 W74 0.1- 0.3- 260127 349 (2.4+ 2.4+) 260114 N56 0.0 0.3+ 260117 Q14 1.1+ 1.8+ 260127 349 1.7+ 1.8+ 260114 N56 0.7- 0.7+ 260117 Q14 1.6- 1.7+ 260203 P87 0.5+ 0.6- 260114 B74 0.2- 0.2- 260117 E41 1.0+ 0.1- 260203 P87 0.8+ 0.4- 260114 B74 0.2+ 0.2+ 260117 E41 0.7- 1.1+ 260203 349 (1.0+ 2.1+) 260114 B74 0.7+ 1.0- 260117 E41 0.3+ 0.5+ 260203 349 0.3+ 1.4+ 260114 L09 0.7- 0.5+ 260117 Q62 0.5- 0.2- 260205 Q23 (2.4+ 0.9+) 260114 L09 0.3+ 0.2- 260117 O44 0.4- 0.4+ 260205 Q23 (2.7+ 0.6+) 260114 L09 0.2- 0.1- 260117 Q62 0.1- 0.5- 260207 P87 0.3- 1.2- 260115 807 0.2- 0.2- 260117 O44 0.1+ 0.0 260207 P87 0.4- 0.7- 260115 807 0.1- 0.2+ 260117 Q62 1.1- 0.8- 260209 349 1.0- 0.3- 260115 807 0.3+ 0.0 260117 M21 0.2+ 0.3- 260209 349 0.6+ 0.1+ 260115 G37 0.2- 0.5- 260117 M21 0.0 0.1- 260209 349 0.1+ 1.3+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2026 Feb. 11