◎P/1999 R2の軌道と予報位置です
IAUC7255の検出観測は，３個の観測がリピ−ティングしている．
P/1999 R2 = P/1988 V1 (Ge-Wang)
Epoch 1999 July 1.0 TT = JDT 2451360.5
T 1999 June 21.50883 TT Nakano
q 2.4960941 (2000.0) P Q
n 0.08826211 Peri. 177.39126 +0.99549283 +0.09424995
a 4.9959703 Node 177.13602 -0.09038172 +0.97650242
e 0.5003785 Incl. 12.17142 -0.02872583 +0.19380393
P 11.17
From 19 observations 1988-1999, mean residual 0".92.
Residuals in seconds of arc
1988/ 881104 327 1.3- 0.0 1999/
881011 675 0.5- 0.4+ 881119 413 1.0+ 1.0+ 990915 691 0.4- 0.1+
881011 675 1.7+ 0.4- 881128 372 0.1- 0.2- 990915 691 0.2- 0.2-
881103 897 2.1- 0.1- 881128 372 0.5- 0.5+ 990915 691 1.5+ 0.4-
881103 897 1.3- 0.1- 881130 372 0.6- 0.7+ 990916 691 0.3- 0.1-
881104 675 1.4+ 0.7- 881207 801 0.2- 2.0- 990916 691 0.2- 0.3+
881104 327 0.5+ 1.3+ 881213 801 2.4+ 0.2- 990916 691 0.4- 0.0
Date/ TT R.A.(2000) Decl. Delta r Daily motion Mag. Moon Age
h h m ｡ , , / PA ｡ m1 ｡
1999 Sept.15 14 02 21.29 +06 40.5 1.757 2.582 7.0 / 178 18.8 158 .29
16 14 02 21.30 +06 33.5 1.751 2.584 7.1 / 181 18.8 146 .38
17 14 02 21.30 +06 26.3 1.745 2.586 7.3 / 184 18.8 134 .48
18 14 02 21.26 +06 19.1 1.740 2.588 7.4 / 187 18.8 122 .57
19 14 02 21.21 +06 11.8 1.734 2.590 7.6 / 189 18.8 110 .66
20 14 02 21.13 +06 04.3 1.729 2.592 7.7 / 191 18.8 98 .75
21 14 02 21.02 +05 56.7 1.724 2.594 7.9 / 194 18.8 85 .83
22 14 02 20.90 +05 49.1 1.719 2.596 8.1 / 196 18.8 72 .90
23 14 02 20.75 +05 41.3 1.714 2.598 8.2 / 198 18.8 59 .96
24 14 02 20.58 +05 33.5 1.710 2.600 8.4 / 200 18.8 45 .99
25 14 02 20.39 +05 25.6 1.706 2.602 8.6 / 202 18.8 31 1.00
26 14 02 20.18 +05 17.6 1.702 2.604 8.8 / 203 18.8 17 .98
27 14 02 19.94 +05 09.6 1.698 2.606 9.0 / 205 18.8 4 .94
28 14 02 19.69 +05 01.4 1.694 2.608 9.1 / 207 18.8 13 .87
29 14 02 19.42 +04 53.3 1.691 2.611 9.3 / 208 18.8 27 .78
30 14 02 19.12 +04 45.1 1.688 2.613 9.5 / 209 18.8 42 .68
Oct. 1 14 02 18.81 +04 36.8 1.685 2.615 9.7 / 211 18.8 56 .57
2 14 02 18.48 +04 28.5 1.682 2.617 9.8 / 212 18.8 70 .45
3 14 02 18.13 +04 20.1 1.680 2.620 10.0 / 213 18.8 84 .34
4 14 02 17.76 +04 11.8 1.678 2.622 10.2 / 214 18.8 98 .24
5 14 02 17.38 +04 03.4 1.676 2.624 10.3 / 215 18.8 112 .16
6 14 02 16.98 +03 55.0 1.674 2.627 10.4 / 216 18.8 125 .09
7 14 02 16.57 +03 46.6 1.673 2.629 10.6 / 217 18.8 138 .04
8 14 02 16.14 +03 38.2 1.672 2.631 10.7 / 218 18.8 151 .01
9 14 02 15.69 +03 29.9 1.671 2.634 10.8 / 219 18.8 163 .00
10 14 02 15.24 +03 21.5 1.670 2.636 10.9 / 220 18.8 174 .01
11 14 02 14.77 +03 13.2 1.669 2.638 11.0 / 221 18.8 170 .04
12 14 02 14.29 +03 04.9 1.669 2.641 11.0 / 222 18.8 158 .09
13 14 02 13.80 +02 56.6 1.669 2.643 11.1 / 222 18.8 146 .15
14 14 02 13.30 +02 48.4 1.670 2.646 11.2 / 223 18.8 134 .23
15 14 02 12.79 +02 40.3 1.670 2.648 11.2 / 224 18.8 122 .31
NAKANO
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