Nakano Note (Nakano wa Kangaeru noda) NK 2278 C/2012 C2 (Bruenjes)

The following improved orbital elements, by S. Nakano, are from 230 observations 2012 Feb. 11 to 27. The mean residual is +/- 0.73 arc second. T = 2012 Mar. 12.73312 +/- 0.00030 (m.e.) TT Peri. = 62.81426 +/- 0.00042 Node = 118.01699 +/- 0.00181 (2000.0) Inc. = 162.77958 +/- 0.00025 q = 0.8012707 +/- 0.0000152 AU e = 1.0 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2012/ 120214 D95 1.1+ 0.5+ 120217 J08 0.3+ 0.9+ 120211 H27 1.4- 1.2- 120214 367 1.0+ 0.5+ 120217 939 0.9+ 0.3+ 120211 H27 (0.8- 2.4-) 120214 367 1.4+ 0.2+ 120217 939 0.8+ 0.2+ 120211 H27 (3.8- 2.4-) 120214 367 1.3+ 0.5+ 120217 958 0.8+ 0.6+ 120212 H27 (2.4- 1.3+) 120214 367 1.0+ 0.4+ 120218 703 (3.8+ 1.6+) 120212 H27 1.2- 1.0- 120214 D95 0.2+ 0.3- 120218 703 (4.5+ 2.2+) 120212 H27 (0.5+ 2.4-) 120214 367 1.1+ 0.3+ 120218 349 1.0+ 0.1- 120212 H27 0.2- 0.8+ 120214 D95 0.5+ 0.6+ 120218 349 1.7+ 0.5- 120212 673 0.5- 0.5- 120214 D93 (2.2+ 1.7+) 120218 349 1.1+ 0.0 120212 673 0.9- 0.4- 120214 D93 0.3+ 1.0+ 120218 300 0.4+ 0.4- 120212 673 0.1+ 0.1- 120214 D93 0.3+ 0.3+ 120218 300 0.3+ 0.5- 120212 900 0.4+ 0.2- 120214 D93 0.6- 0.3+ 120218 300 0.5+ 0.5- 120212 D93 0.5- 0.9- 120214 D93 1.5+ 0.9- 120218 300 0.0 0.4+ 120212 D93 1.5- 0.1+ 120214 C42 1.7- 0.0 120218 939 1.7+ 0.3+ 120212 D93 0.8- 0.2- 120214 C42 0.3+ 0.4+ 120218 939 1.0+ 0.0 120212 900 0.3- 0.0 120214 C42 0.3- 0.0 120218 939 0.2+ 0.2- 120212 D93 0.7+ 1.0- 120214 C77 (2.4+ 1.2+) 120219 703 0.8- 0.0 120212 D93 1.0- 0.3+ 120214 C77 0.2- 0.7- 120219 703 0.6- 0.0 120212 D93 0.3- 0.6- 120214 C77 1.0- 0.2+ 120219 703 0.6- 0.3- 120212 900 0.3+ 0.3+ 120214 C77 0.6+ 0.1+ 120219 703 0.8- 0.0 120212 900 0.1+ 0.1- 120214 J01 0.4- 0.9- 120219 H06 0.8- 0.3+ 120212 367 0.4+ 0.4+ 120214 J01 0.3- 1.0- 120219 H06 0.0 0.6+ 120212 367 0.2+ 0.2+ 120214 J01 (2.0+ 0.1+) 120219 H06 0.3+ 1.0+ 120212 367 0.1+ 0.1- 120214 J01 1.1+ 0.5- 120219 D88 1.0+ 1.5+ 120212 367 0.6+ 0.1+ 120214 J08 1.7- 0.1- 120219 D88 1.9+ 0.8+ 120212 367 0.0 0.1- 120214 J08 (1.5+ 2.7+) 120219 D95 0.6+ 0.1- 120212 367 0.4+ 0.4- 120215 H06 0.9- 0.3- 120219 900 (5.5+ 6.3+) 120212 300 1.9+ 0.6+ 120215 H06 0.1- 0.4+ 120219 900 1.0- 1.0+ 120212 300 1.7+ 0.9+ 120215 H06 0.6- 0.1+ 120219 D95 0.8+ 0.6- 120212 300 0.3+ 0.5+ 120215 D93 0.6- 1.2+ 120219 900(10.9+ 6.7+) 120212 300 1.2+ 0.3+ 120215 D93 1.2+ 0.4- 120219 900 0.4+ 0.1- 120212 300 1.6+ 0.7+ 120215 D93 0.2+ 1.2- 120219 D92 0.3- 0.5- 120212 300 0.2+ 0.3+ 120215 D93 0.7+ 1.5- 120219 D92 1.9- 0.6- 120212 300 1.1+ 0.1+ 120215 D95 0.6+ 0.0 120219 C23 0.6- 1.3- 120212 300 1.3+ 0.4+ 120215 D95 1.5+ 0.5+ 120219 958 (2.6+ 2.6+) 120212 300 0.5+ 0.6+ 120215 D95 0.3- 0.6- 120219 C23 0.5- 0.3- 120212 300 0.9+ 0.4+ 120215 D95 0.5- 0.6- 120219 958 0.4+ 0.5+ 120212 C32 1.2- 0.4+ 120215 204 1.0+ 0.8- 120219 C23 0.4- 0.1- 120212 C32 0.9- 0.2- 120215 204 0.5- 0.1- 120219 958 0.7+ 0.7+ 120212 C32 0.1- 0.1+ 120215 B66 0.9+ 0.6- 120219 958 0.7+ 0.6+ 120212 C32 0.1+ 0.7+ 120215 B66 0.4- 0.2+ 120219 J08 (1.6+ 3.2+) 120212 B42 0.8- 0.1+ 120215 213 0.2- 0.4- 120219 J08 (0.9+ 4.6+) 120212 B42 0.4+ 0.8+ 120215 213 0.3+ 0.1+ 120220 H06 1.5- 0.3+ 120212 B42 0.5- 0.4+ 120215 213 0.6+ 0.8+ 120220 H06 1.5- 0.4+ 120212 B42 0.1+ 0.3- 120216 693 1.3- 1.2- 120220 H06 1.2- 0.6+ 120212 B42 0.1+ 0.1- 120216 693 1.6- 1.1- 120220 D95 1.7+ 1.1- 120212 B42 0.3- 0.1+ 120216 693 1.2- 1.1- 120220 D95 0.0 0.6+ 120212 118 1.5- 0.4+ 120216 693 1.1- 0.9- 120220 D95 0.6- 0.5- 120212 118 0.5- 0.7- 120216 693 1.7- 0.9- 120220 372 0.9- 0.5- 120212 118 0.7- 0.4- 120216 D93 1.0- 0.7- 120220 372 0.6- 0.4- 120212 118 0.3- 0.3+ 120216 D93 0.4- 0.2+ 120220 C32 (2.1- 0.5-) 120212 118 0.6- 0.3- 120216 D93 1.4- 0.0 120220 C32 0.5+ 0.2+ 120212 958 0.8+ 0.2+ 120216 D93 1.4- 0.9- 120220 C32 1.6- 0.4- 120212 958 0.8+ 0.4- 120216 D93 0.2- 0.5- 120220 C32 0.4+ 0.4+ 120212 I89 0.4+ 0.1+ 120216 D93 1.8- 0.7- 120220 B82 0.1- 0.1+ 120212 I89 0.5- 0.3- 120216 D92 0.0 0.9- 120220 C23 (1.8+ 5.1+) 120212 A71 0.5+ 0.6- 120216 D92 1.0+ 0.2- 120220 B82 1.7+ 1.3+ 120212 A71 1.7+ 0.4+ 120216 D92 0.5- 0.7- 120220 C23 (3.5+ 1.5+) 120212 I89 0.1- 0.3+ 120216 D92 0.8+ 0.0 120220 958 0.9+ 1.1- 120212 A71 0.1+ 0.1+ 120216 D95 0.2+ 0.1+ 120220 A71 1.1- 0.4+ 120212 A71 0.1+ 0.5+ 120216 D95 0.2- 0.1+ 120220 C23 (4.4+ 1.5+) 120212 A71 0.7- 1.0+ 120216 D95 0.2+ 0.0 120220 B82 0.7- 0.3- 120212 A71 1.0+ 0.7+ 120216 D95 0.3+ 0.3+ 120220 958 0.1+ 1.0+ 120212 A71 0.8+ 0.2+ 120216 B51 (2.5- 0.9-) 120220 A71 0.0 1.3+ 120212 I89 (2.0- 0.5-) 120216 B75 (2.8+ 1.6-) 120220 958 0.6+ 1.1- 120212 I89 0.3- 1.6+ 120216 B75 (2.3- 0.5-) 120220 B82 1.0- 0.5+ 120212 I89 0.4- 0.2+ 120216 B51 0.3+ 0.9+ 120220 958 0.6- 0.3+ 120212 I89 0.8- 0.3+ 120216 B51 1.2+ 0.7+ 120220 215 (2.9+ 1.7+) 120212 I89 0.8- 0.5+ 120216 B51 0.8- 0.6- 120220 215 (2.6+ 1.8+) 120212 I89 0.5- 0.3+ 120216 235 1.0+ 0.9- 120220 215 0.2- 0.6+ 120212 I89 0.4- 0.5+ 120216 J97 0.1- 0.1+ 120220 B82 0.8- 0.5+ 120212 958 0.5+ 0.2+ 120216 235 0.2- 0.0 120221 D92 (1.9+ 2.9-) 120212 958 0.1+ 0.2- 120216 235 0.2+ 0.1+ 120221 D92 (2.6- 1.1-) 120212 I93 0.5+ 1.0- 120216 J97 0.7- 0.6- 120221 D95 (2.6- 0.3+) 120212 I93 1.0- 0.3- 120216 J97 0.5- 0.2+ 120221 D95 0.7- 0.9+ 120212 I93 0.4- 1.1- 120216 J95 0.2- 0.4- 120221 958 (5.6+ 0.5+) 120213 H47 0.6- 0.6- 120216 J95 0.5+ 0.0 120221 204 0.1- 0.2+ 120213 H47 0.0 0.0 120217 D93 0.9- 0.0 120221 130 1.1- 1.7+ 120213 H47 0.1+ 0.1+ 120217 D93 0.5+ 0.8- 120221 204 (2.8+ 0.6+) 120213 C42 1.0- 0.1+ 120217 D93 0.6- 1.9- 120221 130 (3.7+ 0.6+) 120213 C42 0.4- 0.3- 120217 D93 0.2+ 0.3- 120221 958 (5.3+ 0.8+) 120213 C42 (2.8+ 1.4+) 120217 D93 1.0- 0.1- 120221 958 (5.4+ 0.0 ) 120213 I89 0.6- 0.1+ 120217 D93 0.8- 1.2- 120222 D95 0.6+ 0.8- 120213 I89 0.3- 0.3+ 120217 595 0.7+ 0.1+ 120222 D95 0.6+ 0.6- 120213 I89 0.4- 0.2+ 120217 595 0.5+ 0.1- 120227 958 1.4+ 0.0 120214 I17 0.5+ 0.2+ 120217 595 0.6+ 0.1- 120227 958 (2.3+ 0.8+) 120214 I17 0.0 0.4+ 120217 J08 0.0 0.8+ 120227 958 (4.1+ 0.9-) 120214 I17 0.8- 0.7+ 120217 958 0.9- 0.3- 120229 900(86.7- 35.9+) 120214 D95 1.0+ 0.6+ 120217 958 0.7+ 0.3+ 120229 900(86.9- 35.8+) 120214 367 1.2+ 0.3+ 120217 939 0.8+ 0.5+ ( ) -------- Rejected Obs.

Associate of Central Bureau for Astronomical Telegrams Late edition Syuichi Nakano 2012 Mar. 19

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