OAA computing section circular NK 627 Periodic Comet Lovas 1 (93P)
The following improved orbital elements, by S. Nakano, are from 29 observations 1980 to 1990. Perturbations by Mercury to Pluto and five minor planets, Ceres, Pallas, Vesta, Iris, Bamberga, were taken into account. The mean residual is +/- 1.09 arc seconds. Epoch = 1989 Oct. 1.0 TT (Not found a file of Mean error) T = 1989 Oct. 10.50586 Peri. = 73.60966 Node = 342.42295 Inc. = 12.20408 q = 1.6796351 e = 0.6142308 a = 4.3539902 n' = 0.10848580 P = 9.085 T = 1980 Sept. 3.42401 TT Epoch = 1980 Aug. 29.0 TT Peri. = 72.55982 e = 0.6145259 Node = 343.02902 (2000.0) a = 4.3471339 AU Inc. = 12.29981 n'= 0.10874256 q = 1.6757076 AU P = 9.064 years The predicted orbit for the 1998 return is as follows: T = 1998 Oct. 14.15692 TT Epoch = 1998 Nov. 3.0 TT Peri. = 74.49279 e = 0.6131235 Node = 340.01976 (2000.0) a = 4.3729349 AU Inc. = 12.23663 n'= 0.10778158 q = 1.6917859 AU P = 9.144 years [ Residual block was lost].
Director, Computing Section Syuichi Nakano 1995 Apr. 22