Nakano Note (Nakano wa Kangaeru noda) NK 5587 C/2025 K3 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 68 observations 2025 Apr. 28 to 2026 June 3. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.32 arc second. See an orbit in CBET 5564. Epoch = 2028 Dec. 15.0 TT T = 2028 Dec. 13.78912 +/- 0.05501 (m.e.) TT Peri. = 188.59051 +/- 0.00085 Node = 350.67245 +/- 0.00067 (2000.0) Inc. = 104.91116 +/- 0.00011 q = 3.4673915 +/- 0.0001565 AU e = 1.0025981 +/- 0.0000565 1/a = -0.0007493 +/- 0.0000163 1/AU origin = +0.000033 (Q= 8) future = -0.000110 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2025/ 250529 Z31 0.1- 0.2- 250930 G96 0.1+ 0.1- 250428 F51 0.0 0.0 250529 Z31 0.4+ 0.0 2026/ 250428 F51 0.0 0.0 250529 Z31 0.1+ 0.1+ 260319 V00 0.3+ 0.2- 250428 F51 0.1- 0.1- 250603 W62 0.1- 0.1+ 260319 V00 0.3+ 0.3- 250428 F51 0.2- 0.4- 250603 W62 0.1- 0.0 260319 V00 0.3+ 0.1- 250428 F51 0.1- 0.1- 250603 T14 0.0 0.0 260319 V00 0.1+ 0.0 250428 F51 0.2- 0.1+ 250603 T14 0.1- 0.1- 260508 F52 0.3+ 0.6+ 250523 F52 0.0 0.2- 250603 T14 0.0 0.1- 260508 F52 0.2+ 0.5+ 250523 F52 0.0 0.2+ 250605 T12 0.1- 0.0 260508 F52 0.0 0.2+ 250523 F52 0.1- 0.2- 250605 T12 0.1- 0.0 260522 215 0.0 0.6- 250523 F52 0.1- 0.1+ 250605 T12 0.0 0.2+ 260522 215 0.3+ 0.2- 250524 Z84 0.3+ 0.4+ 250619 L79 0.1+ 1.1- 260522 215 0.4+ 0.0 250524 Z84 1.1+ 0.1- 250619 L79 0.5+ 0.3- 260523 G96 0.3+ 0.1+ 250524 T14 0.0 0.1- 250619 L79 1.0- 0.1+ 260523 G96 0.0 0.4- 250524 T14 0.0 0.1- 250725 W62 0.1+ 0.4- 260523 G96 0.0 0.0 250524 T14 0.0 0.0 250725 W62 0.3+ 0.4- 260523 G96 0.3+ 0.1- 250527 F52 0.0 0.0 250725 W62 0.2+ 0.2- 260524 S24 (1.1- 2.3+) 250527 F52 0.1- 0.0 250824 G96 0.1+ 0.2- 260524 S24 1.6- 0.3+ 250527 F52 0.0 0.0 250824 G96 0.4+ 0.2+ 260525 S24 0.7- 1.4- 250527 F52 0.1+ 0.3- 250824 G96 0.3- 0.3+ 260603 G96 0.1+ 0.1+ 250528 I52 0.2- 0.0 250824 G96 0.3- 0.1- 260603 G96 0.3+ 0.1+ 250528 I52 0.5+ 0.0 250930 G96 0.3+ 0.0 260603 G96 0.1+ 0.5+ 250528 I52 0.2- 0.2+ 250930 G96 0.1- 0.1- 260603 G96 0.2- 0.3+ 250529 Z31 0.1- 0.1+ 250930 G96 0.3- 0.3+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2026 June 13