OAA computing section circular NK 1487 C/1991 X2 (Mueller)
The following improved orbital elements, by S. Nakano, are from 116 observations 1991 Dec. 13 to 1992 Mar. 3. Perturbations by Mercury to Pluto and five minor planets were taken into account. The mean residual is +/- 1.01 arc seconds. See an orbit on MPC 19818. Epoch = 1992 Apr. 8.0 TT T = 1992 Mar. 21.20056 +/- 0.00019 (m.e.) TT Peri. = 306.97940 +/- 0.00450 Node = 288.78105 +/- 0.00155 (2000.0) Inc. = 95.58210 +/- 0.00655 q = 0.1988262 +/- 0.0000228 AU e = 1.0002359 +/- 0.0000258 1/a = -0.0011864 +/- 0.0001299 1/AU origin = -0.000261 (Q= 6) future = -0.000889 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1991/ 920117 657 1.2+ 1.2+ 920208 540 (2.9- 0.4-) 911213 675 (0.6- 2.6+) 920121 411 1.1- 0.2- 920208 540 (2.5- 0.2-) 911213 675 1.2+ 0.3- 920121 411 0.9- 0.9- 920208 540 1.8- 1.7+ 911213 675 (3.0+ 3.2-) 920121 411 0.3- 1.1+ 920210 372 0.6- 0.4+ 911231 675 0.6- 0.2- 920123 372 (0.9- 3.0+) 920210 894 (0.7+ 3.5-) 911231 675 0.3+ 1.0- 920124 372 (5.9- 1.3-) 920219 411 0.8+ 0.1+ 1992/ 920124 372 (4.5- 0.6-) 920219 411 0.4+ 0.5+ 920101 675 0.4- 1.5+ 920124 411 0.7+ 0.0 920219 411 1.3- 0.4+ 920101 675 (3.4+ 1.3-) 920124 411 0.2+ 1.0+ 920219 411 1.1+ 0.0 920102 801 1.1- 0.9- 920124 411 0.2- 0.9+ 920219 411 0.0 0.1- 920102 801 1.1- 0.9- 920124 411 (2.5+ 0.3+) 920219 411 0.3+ 0.3- 920102 801 1.1- 1.2- 920125 411 0.2+ 1.1+ 920219 106 (3.2+ 2.5-) 920102 801 1.1- 1.2- 920125 411 (2.3+ 1.3+) 920219 106 (4.1+ 3.3-) 920102 896 0.9- 1.0+ 920125 411 0.1- 0.1+ 920219 106 (4.6+ 2.3-) 920102 897 1.0+ 1.0+ 920125 411 1.3+ 1.2- 920219 106 (4.3+ 1.4-) 920102 896 (8.3- 0.9+) 920127 372 (2.1+ 1.4+) 920220 595 (2.5+ 0.8-) 920102 897 0.9+ 0.6- 920128 372 0.5- 0.8- 920222 411 0.8+ 0.2- 920102 897 (2.8- 1.1-) 920128 372 0.3+ 1.4+ 920222 411 1.1+ 0.3- 920102 385 (4.8+ 0.7-) 920131 540 1.0+ 0.3+ 920222 411 1.8+ 0.8- 920102 385 0.9+ 2.2- 920131 540 1.8- 1.0+ 920222 411 1.6+ 0.2- 920102 589 1.6- 1.2+ 920201 411 1.0- 1.6+ 920222 411 0.1- 0.1+ 920102 589 (6.4+ 3.3-) 920201 411 0.1+ 1.6+ 920222 411 1.7+ 0.6- 920102 589 (5.8+ 2.1-) 920201 411 (3.2- 1.0-) 920222 411 1.0+ 1.2- 920103 372 (5.0- 2.0+) 920201 411 0.5+ 0.3+ 920222 595 (2.7+ 0.1+) 920103 411 0.6- 0.8- 920201 411 0.7- 2.1+ 920222 595 (3.9+ 0.3-) 920103 411 0.0 0.8- 920201 411 0.8- 2.1+ 920223 411 0.4+ 0.2- 920103 411 0.8- 0.1- 920201 372 (4.5- 1.9-) 920223 411 1.0+ 1.3+ 920103 411 (2.9- 0.5-) 920202 411 1.3- 0.0 920223 411 0.4+ 0.1+ 920103 411 1.1- 2.1- 920202 411 1.6- 0.3- 920223 411 0.3- 0.3- 920103 596 (5.8- 1.3+) 920202 411 0.9- 0.8+ 920223 411 0.6- 1.9- 920103 596 1.6- 0.0 920202 411 0.2+ 0.5- 920223 411 0.5- 0.9- 920104 373 1.3- 2.0- 920202 411 0.7- 0.4+ 920223 411 1.9+ 0.7- 920104 373 (2.4- 0.5+) 920203 801 0.2- 0.8- 920224 106 (4.2+ 2.2-) 920104 411 0.4- 0.9- 920203 801 0.9- 0.4- 920225 376 1.4+ 0.2- 920104 411 0.7- 1.9- 920204 372 (2.3- 3.1-) 920225 411 1.4+ 1.0- 920104 411 (3.0- 0.4+) 920204 372 (3.2- 0.5+) 920225 411 0.6+ 0.5- 920104 411 (1.7- 3.5-) 920204 372 0.7- 2.1+ 920225 376 0.4+ 1.4- 920107 372 (9.7- 2.2+) 920204 372 0.5+ 2.3+ 920225 411 0.0 0.3- 920110 897 0.3- 0.9- 920206 801 1.2- 0.2- 920225 411 0.1- 0.3+ 920110 897 (0.2- 2.6+) 920206 801 0.4- 0.0 920225 411 0.6+ 1.2- 920110 411 1.6+ 1.9- 920207 411 0.4- 1.2+ 920225 411 0.2- 0.3- 920110 411 2.1+ 1.1- 920207 411 0.8- 0.6- 920225 897 1.2- 1.0- 920110 411 1.3+ 0.3- 920207 411 1.6- 0.8+ 920225 364 0.8- 0.4- 920111 411 0.4+ 0.6- 920207 411 (2.3- 0.7-) 920225 897 1.1- 0.5- 920111 411 0.5+ 1.0- 920207 411 0.8- 0.7+ 920225 364 0.6+ 1.8- 920111 411 0.3+ 1.4- 920208 411 (3.1- 1.5-) 920225 897 0.2+ 0.9- 920111 411 1.3+ 0.5- 920208 411 0.2- 0.6- 920226 364 0.3- 0.2+ 920114 897 0.8- 1.3+ 920208 411 0.4- 0.5+ 920226 364 0.5- 0.0 920114 897 0.1- 1.5- 920208 411 1.1- 0.7+ 920226 372 1.1- 0.7- 920114 897 1.2- 0.1+ 920208 411 1.6- 0.6- 920228 540 2.0+ 0.8+ 920115 372 (4.0- 2.0+) 920208 411 1.0- 0.3- 920228 540 2.4+ 1.0+ 920115 372 (5.0- 2.6+) 920208 046 1.2+ 1.4- 920303 894 2.3+ 0.3+ 920117 657 1.0- 1.3+ 920208 046 (0.3- 3.1-) 920117 657 1.0+ 1.2+ 920208 540 1.5- 1.2+ ( ) -------- Rejected Obs.
Director, Computing Section Late edition Syuichi Nakano 1992 Aug. 25