104P/Kowal 2
Epoch 1972 July 22.0 TT = JDT 2441520.5
T 1972 Aug. 4.88468 TT Nakano
q 1.5276249 (2000.0) P Q
n 0.15279658 Peri. 189.26185 +0.22708364 -0.94071901
a 3.4651893 Node 247.94301 +0.91001498 +0.29711075
e 0.5591511 Incl. 15.77441 +0.34685121 -0.16362444
P 6.45 (+/- 0.04 day)
From 106 observations 1973-1992, weighting mean residual 2".01.
Nongravitational parameters A1 = -2.70 +/- 0.29, A2 = +0.1298 +/- 0.1116.
Residuals in seconds of arc
1973/ 911216 897 0.1+ 0.9+ 920104 411 0.1- 0.2-
730111 500 11.8- 86.0- 911217 372 2.6- 0.2+ 920104 411 0.5+ 0.8+
730112 500 11.5- 11.3- 911217 372 1.6- 0.6+ 920104 411 1.7- 0.5-
730113 500 15.4+ 49.4+ 911217 372 1.2- 0.7+ 920104 411 0.2+ 0.1-
1979/ 911217 372 (3.6- 0.3-) 920104 411 1.0- 0.6-
790127 675 (3.0+ 3.7+) 911218 411 1.4- 0.3+ 920104 411 0.1+ 1.1-
790128 675 (0.8- 4.0+) 911218 411 0.8+ 0.4+ 920106 801 0.5- 0.6-
790129 675 (0.2+ 4.6+) 911218 411 0.9- 2.0+ 920106 801 1.0+ 0.5-
790201 372 (2.7- 5.1+) 911218 411 0.6+ 1.1+ 920107 657 1.2+ 1.3-
790201 372 1.1- 3.0+ 911218 411 (2.8- 1.8+) 920107 657 1.8+ 0.8-
790216 372 (4.0+ 4.5+) 911218 411 2.5- 1.3+ 920107 657 1.9+ 0.9-
790216 323 1.7+ 0.7+ 911219 411 (0.4- 4.1+) 920110 411 0.3- 1.2+
790222 323 0.4+ 0.6+ 911219 411 0.6- 0.6+ 920110 411 1.0- 2.0+
790223 801 0.2- 0.2- 911219 411 2.4- 0.7- 920110 411 0.7+ 0.6+
790226 323 2.8- 1.1- 911219 411 0.2+ 0.5- 920205 801 0.3+ 0.0
790227 372 1.3- 1.8- Y 911219 411 0.5+ 0.3- 920205 801 0.2+ 0.0
790228 372 1.8+ 0.8- 911221 413 1.3+ 0.9- 920207 801 0.5+ 0.4-
790301 675 1.2+ 1.1- 911221 413 1.5+ 1.1- 920207 801 0.4+ 0.5-
790318 323 0.2+ 1.6+ 911229 372 0.3+ 0.2- 920207 658 0.3- 1.7-
790321 372 (0.6+ 4.9-) 911229 372 0.3- 1.5- 920207 658 0.7- 0.5-
790321 372 (1.3+ 4.8-) 911230 411 0.4+ 0.7+ 920210 897 0.0 0.1+
790323 675 (1.7+ 3.7-) 911230 411 0.3+ 2.3+ 920222 411 0.9+ 0.5-
790328 801(10.3- 2.1-) 911230 411 1.0- 0.7+ 920222 411 1.1+ 0.2-
1991/ 911230 411 0.0 0.2- 920222 411 0.2+ 0.0
911212 875 1.6- 1.8- 911230 411 (0.8- 2.8+) 920222 411 0.4+ 0.6-
911213 875 0.1- 1.3- 911230 411 1.0+ 0.6+ 920301 801 1.0+ 1.5+
911213 875 (2.8- 3.8-) 911230 372 0.3- 1.9- 920301 801 0.8+ 2.1+
911213 875 1.3- 1.2- 1992/ 920306 411 1.3- 2.2+
911215 411 1.0- 1.3+ 920101 801 1.6+ 1.2- 920312 658 1.3- 0.3+
911215 411 0.6+ 2.3- 920101 801 0.8- 0.3- 920312 658 1.2- 0.4+
911215 411 (3.5- 0.1+) 920102 411 0.1+ 0.9+ 920312 658 1.4- 0.4+
911215 411 1.3- 1.8- 920102 411 1.1+ 1.4+ 920313 658 0.9- 0.4+
911215 411 1.1+ 0.8- 920102 411 0.9+ 0.6+ 920313 658 0.8- 0.4+
911216 381 1.4+ 0.1- 920102 411 0.5- 0.2+ 920313 658 0.8- 0.6+
911216 896 (3.2- 2.7-) 920102 411 0.1+ 1.7+ 920322 897 0.7- 1.3-
911216 896 (2.8- 0.1+) 920102 411 1.1+ 0.3+ 920322 411 0.0 0.5-
911216 411 1.0- 1.5- 920102 897 1.2+ 0.7+ 920322 411 0.2+ 0.5+
911216 896 (2.6+ 9.1-) 920102 897 1.8+ 1.7- 920322 897 0.7+ 0.6-
911216 411 (3.6- 2.5+) 920103 372 0.6- 0.0 920322 411 0.2+ 0.4+
911216 897 1.6+ 0.8- 920103 372 0.7- 1.6+ 920401 801 0.5+ 0.3+
911216 411 2.3- 0.5- 920104 373 1.7+ 0.4- 920401 801 0.1- 0.1+
911216 411 1.1- 1.2- 920104 373 1.4+ 0.3- 920430 801 0.2- 0.1+
911216 411 1.2- 0.9+ 920104 411 1.5+ 0.2+ 920430 801 0.2+ 1.2-
NAKANO
**** Don't distribute anyone except personal use only ****
(C) Copyright 2004 OAA/ComputingSection
write mail from CFAD0::NAKANO on 2004-01-21 21:27:50(JST).
◎104P/Kowal 2 = Boethin's comet in 1973
詳しくは,IAUC8255に出ていますが,1973年にボ−シンから発見が報告され
ていた10等級の彗星と104Pとの連結軌道です.下にある光度予報は,現在,使
用されている光度式からのものです.近日点通過後の光度式からの1973年の光
度は,このとき,16等級(近日点通過前の光度式からは15等級)でした.
104P/Kowal 2
Epoch 1972 July 22.0 TT = JDT 2441520.5
T 1972 Aug. 4.88468 TT Nakano
q 1.5276249 (2000.0) P Q
n 0.15279658 Peri. 189.26185 +0.22708364 -0.94071901
a 3.4651893 Node 247.94301 +0.91001498 +0.29711075
e 0.5591511 Incl. 15.77441 +0.34685121 -0.16362444
P 6.45 (+/- 0.04 day)
From 106 observations 1973-1992, weighting mean residual 2".01.
Nongravitational parameters A1 = -2.70 +/- 0.29, A2 = +0.1298 +/- 0.1116.
Date/ 0h TT R.A.(2000) Decl. Delta r Daily motion Mag. Moon Age
h m 。 , , / PA 。 m1 。
1972 Jan. 4 21 35.80 -00 58.8 3.122 2.514 24.5 / 77 17.7 168 .89
14 21 51.67 -00 02.3 3.144 2.452 26.0 / 75 17.6 67 .07
24 22 08.44 +01 05.0 3.154 2.389 27.5 / 74 17.4 67 .57
Feb. 3 22 26.03 +02 22.5 3.153 2.327 28.9 / 72 17.3 163 .88
13 22 44.42 +03 49.3 3.141 2.265 30.2 / 71 17.1 47 .05
23 23 03.60 +05 24.8 3.119 2.203 31.5 / 71 16.9 91 .64
Mar. 4 23 23.58 +07 07.6 3.086 2.142 32.8 / 70 16.7 147 .86
14 23 44.41 +08 56.6 3.046 2.081 34.1 / 70 16.6 27 .03
24 00 06.14 +10 50.3 2.998 2.021 35.3 / 70 16.4 111 .70
Apr. 3 00 28.84 +12 46.7 2.944 1.963 36.5 / 71 16.2 132 .85
13 00 52.60 +14 43.8 2.885 1.906 37.8 / 71 15.9 7 .01
23 01 17.52 +16 39.1 2.823 1.851 39.0 / 73 15.7 128 .74
May 3 01 43.66 +18 29.6 2.759 1.799 40.2 / 74 15.5 118 .83
13 02 11.10 +20 12.2 2.694 1.750 41.3 / 76 15.3 13 .00
23 02 39.87 +21 43.1 2.630 1.704 42.4 / 78 15.1 142 .77
June 2 03 09.93 +22 58.5 2.567 1.663 43.4 / 81 14.9 104 .79
12 03 41.18 +23 54.5 2.508 1.625 44.2 / 84 14.7 31 .00
22 04 13.40 +24 27.5 2.451 1.594 44.9 / 87 14.6 152 .80
July 2 04 46.31 +24 34.4 2.399 1.568 45.4 / 91 14.4 90 .73
12 05 19.54 +24 13.3 2.351 1.548 45.7 / 95 14.3 45 .02
22 05 52.66 +23 23.3 2.308 1.534 45.8 / 98 14.2 162 .82
Aug. 1 06 25.26 +22 05.1 2.270 1.528 45.6 / 102 14.2 74 .65
m1 = 10.0+5log(delta)+13.0log(r)
11 06 56.99 +20 20.6 2.236 1.529 45.1 / 105 15.0 57 .04
21 07 27.53 +18 12.7 2.206 1.537 44.3 / 108 15.0 171 .85
31 07 56.67 +15 45.3 2.179 1.551 43.3 / 111 15.1 57 .56
Sept.10 08 24.30 +13 02.4 2.154 1.573 42.0 / 114 15.1 69 .05
20 08 50.33 +10 08.2 2.130 1.600 40.5 / 116 15.2 173 .88
30 09 14.74 +07 06.6 2.106 1.633 38.8 / 118 15.3 40 .48
Oct. 10 09 37.55 +04 01.0 2.080 1.671 36.8 / 120 15.4 81 .07
20 09 58.72 +00 54.8 2.053 1.714 34.6 / 122 15.6 159 .91
30 10 18.26 -02 09.5 2.022 1.761 32.2 / 124 15.7 22 .41
Nov. 9 10 36.13 -05 09.5 1.988 1.811 29.6 / 126 15.9 96 .08
19 10 52.23 -08 03.3 1.949 1.863 26.8 / 129 16.0 138 .94
29 11 06.43 -10 48.9 1.906 1.919 23.6 / 132 16.1 11 .37
Dec. 9 11 18.57 -13 24.7 1.858 1.976 20.2 / 136 16.3 115 .09
19 11 28.38 -15 48.5 1.808 2.034 16.6 / 141 16.4 111 .97
29 11 35.63 -17 57.9 1.755 2.094 12.8 / 151 16.5 27 .35
1973 Jan. 8 11 40.01 -19 50.0 1.703 2.155 9.2 / 169 16.7 140 .11
18 11 41.30 -21 20.8 1.654 2.217 7.0 / 202 16.8 79 .99
28 11 39.41 -22 25.7 1.612 2.279 7.6 / 243 16.9 54 .34
Feb. 7 11 34.48 -22 59.9 1.581 2.341 10.3 / 270 17.0 161 .14
m1 = 10.5+5log(delta)+15.0log(r)
NAKANO
**** Don't distribute anyone except personal use only ****
(C) Copyright 2003 OAA/ComputingSection
write mail from CFAD0::NAKANO on 2003-12-16 03:03:43(JST).
104P/Kowal 2
Epoch 2004 Apr. 25.0 TT = JDT 2453120.5
T 2004 May 9.16101 TT Nakano
q 1.3958749 (2000.0) P Q
n 0.15954736 Peri. 192.04078 +0.21267061 -0.94613415
a 3.3667405 Node 246.08614 +0.91719583 +0.27944912
e 0.5853928 Incl. 15.48936 +0.33693176 -0.16351870
P 6.18
From 425 observations 1991-2003, mean residual 0".86.
Nongravitational parameters A1 = +0.61 +/- 0.09, A2 = -0.5150 +/- 0.0021.
Systematic tendency in late 1997 and 1998 observations.
Comet will pass 0.05 AU from the Earth on 2049 Nov. 8.
NAKANO
**** Don't distribute anyone except personal use only ****
(C) Copyright 2003 OAA/ComputingSection
write mail from CFAD0::NAKANO on 2003-10-19 02:58:01(JST).
104P/Kowal 2
Epoch 2004 Apr. 25.0 TT = JDT 2453120.5
T 2004 May 9.19744 TT Nakano
q 1.3959602 (2000.0) P Q
n 0.15958362 Peri. 192.00989 +0.21319383 -0.94601681
a 3.3662304 Node 246.08537 +0.91704239 +0.27995523
e 0.5853046 Incl. 15.48935 +0.33701877 -0.16333176
P 6.18
From 454 observations 1991-1998, mean residual 0".84. Nongravitational
parameters A1 = +5.05 +/- 0.23, A2 = -0.4594 +/- 0.0926.
NAKANO
**** Don't distribute anyone except personal use only ****
(C) Copyright 2001 OAA/ComputingSection
write mail from CFAD0::NAKANO on 2001-04-28 20:31:35(JST).
104P/Kowal 2
Epoch 1998 Mar. 8.0 TT = JDT 2450880.5
T 1998 Mar. 2.15386 TT Nakano
q 1.3966189 (2000.0) P Q
n 0.15952822 Peri. 191.89333 +0.21406604 -0.94579057
a 3.3670097 Node 246.14716 +0.91668308 +0.28088345
e 0.5852050 Incl. 15.48913 +0.33744312 -0.16304810
P 6.18
From 427 observations 1991-1998, mean residual 0".93. Nongravitational
parameters A1 = +4.64 +/- 0.26, A2 = -0.3606 +/- 0.1004.
戻ります。