P/Pigott-LINEAR-Kowalski (1783 W1 = 2003 A1 = 2009 R2)
Epoch 2009 May 9.0 TT = JDT 2454960.5
T 2009 May 11.23061 TT Nakano
q 1.7691741 (2000.0) P Q
n 0.13499307 Peri. 340.95121 +0.74468177 -0.35885295
a 3.7635273 Node 54.07089 +0.66612296 +0.34708293
e 0.5299160 Incl. 44.02385 +0.04158440 +0.86646293
P 7.30 (+/- 0.01 day)
From 189 observations 1995-2009, mean residual 0".70.
Nongravitational parameters A1 = -3.23 +/- 0.42, A2 = +0.0698 +/- 0.0044.
The 1995 observations were found by Maik Meyer. The comet has passed
0.0564 AU from Jupiter on 2006 Sept. 10.3 UT.
Residuals in seconds of arc
1995/ 030117 360 0.2- 0.2- 030305 213 (3.8+ 0.5+)
951029 260 0.6- 0.7+ 030117 360 0.0 0.0 030313 J95 0.7- 0.3-
951029 260 0.1+ 0.4- 030117 360 0.4+ 0.1+ 030313 J95 0.3+ 0.2+
2003/ 030117 246 0.1+ 0.6- 030314 J95 0.6- 0.1-
030105 704 0.0 1.0+ 030117 246 0.3- 0.5- 030314 J95 0.3- 0.4-
030105 704 0.8- 0.4+ 030117 246 0.9+ 0.2+ 030316 587 0.5- 0.3-
030105 704 0.3- 0.9+ 030117 246 0.8+ 0.2- 030316 587 0.0 0.3-
030106 446 0.2- 0.6- 030117 246 0.7+ 0.0 030319 340 0.2+ 0.3-
030106 446 0.6- 0.9- 030117 246 0.9+ 0.2+ 030319 340 (0.9+ 2.1+)
030106 446 0.3+ 0.4- 030121 372 0.2+ 0.5- 030319 340 (2.4+ 0.6-)
030106 446 0.5- 0.4- 030124 372 0.0 0.7- 030322 215 1.0+ 0.8+
030106 446 0.9- 0.3- 030125 130 0.2- 0.5- 030322 215 1.1+ 0.9+
030106 446 0.1+ 0.1+ 030125 130 0.6- 0.4- 030322 215 1.0+ 1.1+
030106 448 0.2+ 0.6- 030125 130 0.8- 0.3- 030322 215 0.3+ 1.1+
030106 670 (0.3+ 2.6+) 030125 J95 0.4- 0.5+ 030326 360 0.4- 0.5-
030106 448 1.6- 1.3- 030125 J95 0.0 0.6+ 030326 360 0.4- 0.1-
030106 670 (0.9- 3.2+) 030126 J95 0.4- 0.1+ 030326 360 0.2- 0.1+
030106 448 0.0 0.7- 030126 J95 0.4- 0.3- 030329 340 0.3+ 0.5-
030106 474 0.9+ 0.1+ 030128 608 0.6+ 1.1+ 030329 340 (0.6+ 2.3-)
030106 474 1.2+ 0.7+ 030128 608 1.1+ 0.2+ 030329 340 0.6+ 1.7+
030106 474 1.3+ 0.9- 030128 608 0.5+ 0.4+ 030329 340 1.1- 0.9-
030106 474 (2.3- 4.4-) 030128 372 0.3+ 0.2+ 030406 360 0.8- 0.4+
030106 474 1.8+ 1.9+ 030128 340 (3.1+ 0.7-) 030406 360 0.1- 0.2+
030107 704 1.1+ 1.8+ 030128 340 1.9+ 0.3- 030406 360 0.2- 0.8+
030107 704 0.6- 0.0 030128 340 (1.3+ 3.0-) 2009/
030107 858 0.1- 0.1- 030128 340 1.7+ 2.0+ 090910 703 1.1- 0.4-
030107 858 0.1- 0.4+ 030129 J95 0.6- 0.2+ 090910 703 1.6+ 0.7-
030107 704 (2.9+ 1.3+) 030129 J95 0.4- 0.6+ 090910 703 1.3- 0.4-
030107 704 1.1- 0.7+ 030201 349 0.3+ 0.5- 090910 703 1.4+ 1.4+
030107 858 0.3+ 0.5+ 030201 349 0.8+ 0.3+ 090910 703 0.7+ 0.1+
030107 608 0.4- 0.3- 030201 349 1.1+ 0.7+ 090910 703 0.9- 1.1-
030107 608 0.4- 0.5+ 030201 215 0.6- 0.1+ 090910 703 0.0 0.4-
030107 608 0.3- 0.0 030201 J95 0.1- 0.2+ 090910 703 0.3- 0.3+
030108 704 0.5+ 0.5+ 030201 J95 0.3- 0.3- 090911 J95 0.0 0.7-
030108 704 0.3- 0.3+ 030203 360 0.1+ 0.4- 090911 J95 1.4+ 1.7-
030108 704 0.5- 0.1+ 030203 360 0.4+ 0.5- 090911 J95 1.9- 0.6-
030108 858 0.6+ 0.1- 030204 608 0.1- 0.6- 090911 H06 (1.1- 2.1+)
030108 704 (3.4- 0.5-) 030204 608 1.2+ 0.3- 090911 H36 (5.1+ 1.9-)
030108 858 1.2+ 0.3+ 030204 608 0.6- 1.3- 090911 H06 0.4- 0.2+
030108 704 0.4- 0.3+ 030204 608 0.5+ 1.1- 090911 H36 1.2+ 1.8-
030108 608 0.8- 0.5- 030204 608 0.6- 1.5- 090911 H36 0.9+ 0.7+
030108 608 1.0- 0.8- 030204 608 0.9+ 0.4- 090911 703 1.1- 1.3+
030108 608 0.8- 0.8- 030210 699 0.3+ 0.9- 090911 703 1.4- 0.5-
030108 246 1.1- 0.6+ 030210 699 0.3+ 0.5- 090911 703 1.1- 0.7-
030108 246 0.1- 0.2- 030210 699 0.4+ 0.1+ 090913 B90 1.9+ 0.1+
030108 246 0.7- 0.2- 030210 699 0.5+ 0.1- 090913 B90 1.1+ 0.5+
030108 246 1.5- 0.3- 030211 608 0.7- 0.2+ 090914 J24 1.9+ 0.9+
030108 246 0.3- 0.1- 030211 608 0.5- 0.2- 090914 J24 (2.4+ 1.6+)
030108 246 0.7- 0.1- 030211 608 0.7- 0.1- 090915 H10 (2.1- 0.9+)
030108 557 0.3+ 0.6+ 030216 J95 1.0- 0.5- 090915 H10 1.3- 0.3-
030108 557 0.3- 0.0 030216 J95 0.5- 0.2+ 090915 H10 (1.0+ 4.2-)
030108 557 0.9- 0.3- 030218 J95 0.3+ 0.1- 090916 H10 0.5- 0.4-
030108 557 0.4- 0.3+ 030218 J95 0.6- 0.1- 090919 703 0.4- 0.5+
030108 557 0.6- 0.6- 030221 246 0.1+ 0.0 090919 703 0.7- 0.5+
030108 176 0.6+ 0.2+ 030221 246 0.1+ 0.0 090919 703 1.7- 1.9+
030108 176 0.2- 0.9- 030221 246 0.2- 0.2+ 090919 703 1.3- 1.4+
030108 176 0.9- 1.8- 030221 246 0.0 0.0 090920 204 0.3+ 0.9+
030111 349 0.2+ 0.2+ 030221 246 0.1- 0.0 090923 H06 0.7+ 0.9+
030111 349 0.9- 0.6+ 030221 246 0.6+ 0.1- 090923 H06 0.0 0.4+
030111 213 0.1- 0.8+ 030222 699 0.4+ 0.6- 090923 H06 0.2+ 0.3+
030111 213 0.3- 0.1+ 030222 699 0.5+ 0.0 090925 H06 0.0 0.9-
030115 448 0.3+ 0.4- 030222 699 (2.3+ 0.3+) 090925 H06 0.4- 0.5-
030115 448 0.7+ 0.0 030222 699 1.3+ 0.5- 090925 349 0.8+ 1.0-
030115 448 0.6+ 0.2- 030222 J95 1.3+ 0.2+ 090925 349 0.1+ 0.5-
030116 204 0.4+ 0.6+ 030222 J95 0.6+ 0.2+ 090927 A77 0.8+ 0.2+
030116 204 0.5- 0.5+ 030224 204 0.5- 0.4- 090927 A77 0.5+ 0.0
030116 204 0.0 0.2+ 030224 204 0.3+ 0.1- 090927 A77 0.4- 0.3+
030116 204 0.3- 0.1+ 030224 204 0.6+ 0.1- 090928 H06 0.4+ 1.1+
030117 448 0.7+ 0.5+ 030224 204 0.1+ 0.3- 090928 H06 0.1+ 0.3+
030117 448 0.9+ 0.6+ 030305 213 (3.4+ 3.5-)
030117 448 0.2+ 0.4+ 030305 213 (3.0+ 1.7-)
NAKANO
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◎D/1783 W1 = P/2003 A1 = 9R1E5E6 (Pigott-LINEAR)の連結軌道と予報位置
チェストノフによって，NEOCPにある天体9R1E5E6とP/2003 A1との同定が
指摘されていますが，この同定は，正しいものです．さらに，その連結軌道
は，1783年に観測されて，見失われた周期彗星P/Pigottの観測位置を赤経方
向におよそ0ﾟ.7，赤緯方向に1ﾟ.2で表現し，この彗星との同定も可能になり
ました．
次の連結軌道は，1783年から2009年までの３回の出現を結んだものです．
なお，1783年の観測は，CCOにあるピーターズの軌道から作成されたもので
す．彗星は，1783年の出現から2009年までに34回，公転していました．彗星
は，2006年９月10日に木星まで0.0564 AUまで接近しました．
0226 17831119.57396722 1.4583056073 0.5789239926 354.04511179 58.60111624 4
5.77018157 17831110. P/LINEAR *1783W1
14.5 5N 6.9 10F 154 1783-2009 0.70 . unpublish 09n M_v 2009
0911(703)
0226 20030201.25425404 1.9157061213 0.4807784597 357.08403732 55.19414033 4
6.26149802 20030210. P/LINEAR 2003A1
14.5 5N 12.0 10N 154 1783-2009 0.70 . unpublish 09n M_v 2009
0911(703)
0226 20090511.21256070 1.7691626033 0.5298883958 340.94572023 54.07122676 4
4.02283908 20090509. P/LINEAR 9R1E5E6
14.5 5N 12.5 10N 154 1783-2009 0.70 . unpublish 09n M_v 2009
0911(703)
P/1783 W1 = 2003 A1 = 9R1E5E6 (Pigott-LINEAR)
Epoch 2009 May 9.0 TT = JDT 2454960.5
T 2009 May 11.21256 TT Nakano
q 1.7691626 (2000.0) P Q
n 0.13500626 Peri. 340.94572 +0.74471576 -0.35879479
a 3.7632821 Node 54.07123 +0.66608986 +0.34715584
e 0.5298884 Incl. 44.02284 +0.04150594 +0.86645780
P 7.30
From 154 observations 1783-2009, weighting mean residual 0".70.
Date/ TT R.A.(2000) Decl. Delta r Daily motion Mag. Moon Age
h h m ｡ , , / PA ｡ m1 ｡
2009 Sept. 1 18 07 18.59 +41 30.0 2.437 2.053 31.9 / 66 17.6 151 .92
2 18 07 21.19 +41 42.8 2.432 2.057 31.9 / 66 17.6 142 .97
3 18 07 23.80 +41 55.5 2.427 2.062 31.8 / 66 17.6 131 .99
4 18 07 26.42 +42 08.2 2.422 2.066 31.7 / 66 17.6 120 1.00
5 18 07 29.03 +42 20.9 2.417 2.071 31.6 / 66 17.6 109 .99
6 18 07 31.65 +42 33.5 2.412 2.075 31.5 / 66 17.6 97 .96
7 18 07 34.27 +42 46.0 2.407 2.080 31.4 / 66 17.6 86 .90
8 18 07 36.90 +42 58.5 2.402 2.084 31.3 / 66 17.6 74 .83
9 18 07 39.52 +43 11.0 2.397 2.089 31.3 / 66 17.6 62 .75
10 18 07 42.15 +43 23.4 2.391 2.093 31.2 / 66 17.6 51 .65
11 18 07 44.78 +43 35.7 2.386 2.098 31.1 / 66 17.6 39 .54
12 18 07 47.41 +43 48.1 2.381 2.103 31.0 / 66 17.6 29 .43
13 18 07 50.04 +44 00.3 2.376 2.107 30.9 / 66 17.6 23 .32
14 18 07 52.68 +44 12.6 2.371 2.112 30.8 / 66 17.6 23 .21
15 18 07 55.31 +44 24.8 2.366 2.117 30.7 / 66 17.6 31 .12
16 18 07 57.95 +44 37.0 2.361 2.122 30.6 / 66 17.6 42 .06
17 18 08 00.58 +44 49.1 2.356 2.126 30.5 / 66 17.6 54 .02
18 18 08 03.22 +45 01.2 2.351 2.131 30.4 / 66 17.6 67 .00
19 18 08 05.86 +45 13.3 2.346 2.136 30.3 / 66 17.6 79 .01
20 18 08 08.49 +45 25.3 2.341 2.141 30.2 / 66 17.7 91 .05
21 18 08 11.13 +45 37.4 2.335 2.145 30.1 / 66 17.7 103 .11
22 18 08 13.76 +45 49.4 2.330 2.150 30.0 / 66 17.7 115 .18
23 18 08 16.40 +46 01.4 2.325 2.155 29.9 / 66 17.7 125 .27
24 18 08 19.03 +46 13.4 2.320 2.160 29.8 / 66 17.7 135 .36
25 18 08 21.66 +46 25.3 2.315 2.165 29.7 / 66 17.7 144 .46
26 18 08 24.30 +46 37.3 2.310 2.170 29.6 / 66 17.7 150 .55
27 18 08 26.93 +46 49.2 2.305 2.175 29.4 / 66 17.7 153 .64
28 18 08 29.55 +47 01.1 2.300 2.180 29.3 / 66 17.7 152 .73
29 18 08 32.18 +47 13.0 2.295 2.184 29.2 / 66 17.7 147 .81
30 18 08 34.80 +47 24.9 2.290 2.189 29.1 / 66 17.7 139 .88
Oct. 1 18 08 37.42 +47 36.8 2.285 2.194 29.0 / 66 17.7 130 .94
NAKANO
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write mail from CFAD0::NAKANO on 2009-09-12 04:29:55(JST).
◎P/Pigott-LINEAR-Kowalskiの連結軌道
メイヤーは，1995年に撮影されていたUSNO AAORのプレート上にこの彗星の過去の
イメージを見つけました．彗星は，高速で移動していたとのことです．なお，この年
の彗星の近日点通過は1995年12月25日でした．
0226 19951225.63569232 1.9219391455 0.4800341322 356.93527278 55.25399286 4
6.22092839 19951229. -2.02699012 0.0579227691 P/Pigott-LINEAR-Kowalski
14.5 5N 12.0 10N 163 1995-2009 0.67 d0.01 NK1827 09n M_v 2009
0911(703)
0226 20030201.24929819 1.9157221527 0.4807858100 357.08179041 55.19388021 4
6.26197354 20030210. -2.02699012 0.0579227691 P/Pigott-LINEAR-Kowalski2003A1
14.5 5N 12.0 10N 163 1995-2009 0.67 d0.01 NK1827 09n M_v 2009
0911(703)
0226 20090511.22647493 1.7691608105 0.5299073420 340.94957528 54.07098395 4
4.02357672 20090509. -2.02699012 0.0579227691 P/Pigott-LINEAR-Kowalski2009R2
14.5 5N 12.5 10N 163 1995-2009 0.67 d0.01 NK1827 09n M_v 2009
0911(703)
P/1783 W1 = 2003 A1 = 2009 R2 (Pigott-LINEAR-Kowalski)
Epoch 2009 May 9.0 TT = JDT 2454960.5
T 2009 May 11.22647 TT Nakano
q 1.7691608 (2000.0) P Q
n 0.13499830 Peri. 340.94958 +0.74469191 -0.35883524
a 3.7634300 Node 54.07098 +0.66611309 +0.34710439
e 0.5299073 Incl. 44.02358 +0.04156089 +0.86646166
P 7.30 (+/- 0.01 day)
From 163 observations 1995-2009, mean residual 0".67.
Nongravitational parameters A1 = -2.03 +/- 0.41, A2 = +0.0579 +/- 0.0046.
The 1995 observations were found by Maik Meyer on the frame taken
by USNO AAOR.
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P/2003 A1
Epoch 2003 Feb. 10.0 TT = JDT 2452680.5
T 2003 Feb. 1.24044 TT Nakano
q 1.9158180 (2000.0) P Q
n 0.13895345 Peri. 357.07773 +0.59902094 -0.53781929
a 3.6916725 Node 55.19234 +0.74853265 +0.11299094
e 0.4810433 Incl. 46.26197 +0.28438142 +0.83545405
P 7.09 (+/- 0.18 day)
From 144 observations 2003 Jan. 5-Apr. 6, mean residual 0".62.
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P/2003 A1
T 2003 Feb. 1.22408 TT Nakano
q 1.9158558 (2000.0) P Q
n 0.13892641 Peri. 357.07036 +0.59909879 -0.53773115
a 3.6921514 Node 55.19169 +0.74851224 +0.11308586
e 0.4811004 Incl. 46.26257 +0.28427112 +0.83549793
P 7.09 (+/- 0.52 day)
From 126 observations 2003 Jan. 5-Mar. 14.
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Comet has made 33 revolutions during 1783 - 2003. Orbit is computed
from 89 observations except fifty-five observations which were made at near
perihelion (2003 Jan. 15 - Feb. 10) and also 1783 observations were made
from a published orbit.
Note, To confirm the identification of D/1783 W1 and P/2003 A1,
former two linked orbits are better than this linkage. One is
gravitational solution (OAA/CS EMES published on 2003 Jan. 18) and
another one is non-gravitational solution (OAA/CS EMES published on
Jan. 29).
P/1783 W1 (Pigott) = P/2003 A1
Epoch 1783 Nov. 10.0 TT = JDT 2372600.5
T 1783 Nov. 15.62169 TT Nakano
q 1.4753635 (2000.0) P Q
n 0.15836160 Peri. 351.66631 +0.60722716 -0.50475951
a 3.3835256 Node 58.15276 +0.76425392 +0.15991956
e 0.5639567 Incl. 46.24732 +0.21723519 +0.84831808
P 6.22 (+/- 0.10 day)
Epoch 2003 Feb. 10.0 TT = JDT 2452680.5
T 2003 Feb. 1.51752 TT Nakano
q 1.9124233 (2000.0) P Q
n 0.14288622 Peri. 357.20541 +0.59705587 -0.53961387
a 3.6236187 Node 55.24721 +0.74930510 +0.11089851
e 0.4722338 Incl. 46.25759 +0.28647191 +0.83457678
P 6.90 (+/- 0.10 day)
From 89 observations 1783-2003, weighting mean residual 2".21.
Nongravitational parameters A1 = -4.18 +/- 0.29, A2 = +1.3086 +/- 0.0788.
Residuals in seconds of arc (or two decimals in units of degrees)
1783/ 030108 608 0.4- 1.7- 030128 340 (6.9+ 5.1-)
831119 500 0.42+ 0.65- Y 030108 608 0.1- 1.8- 030128 340 (5.7+ 4.7-)
831122 500 0.42+ 0.58- Y 030108 246 0.4- 0.6- 030128 340 (5.1+ 7.4-)
831125 500 0.40+ 0.49- Y 030108 246 0.7+ 1.4- 030128 340 (5.5+ 2.4-)
831128 500 0.37+ 0.37- Y 030108 246 0.1+ 1.4- 030129 J95 (3.2+ 4.1-)
831201 500 0.34+ 0.25- Y 030108 246 0.7- 1.4- 030129 J95 (3.3+ 3.7-)
831204 500 0.29+ 0.13- Y 030108 246 0.5+ 1.2- 030201 349 (4.0+ 4.4-)
831207 500 0.25+ 0.01- Y 030108 246 0.1+ 1.3- 030201 349 (4.4+ 3.6-)
831210 500 0.21+ 0.11+ Y 030108 557 1.1+ 0.6- 030201 349 (4.8+ 3.2-)
831213 500 0.16+ 0.21+ Y 030108 557 0.5+ 1.2- 030201 215 (3.1+ 3.7-)
831216 500 0.12+ 0.31+ Y 030108 557 0.1- 1.5- 030201 J95 (3.6+ 3.7-)
831219 500 0.09+ 0.40+ Y 030108 557 0.4+ 0.9- 030201 J95 (3.3+ 4.1-)
831221 500 0.07+ 0.45+ Y 030108 557 0.2+ 1.8- 030203 360 (3.6+ 4.0-)
2003/ 030108 176 1.4+ 1.1- 030203 360 (3.9+ 4.1-)
030105 704 0.7- 2.2+ 030108 176 0.6+ 2.1- 030204 608 (3.3+ 4.0-)
030105 704 1.5- 1.6+ 030108 176 (0.0 3.1-) 030204 608 (4.6+ 3.8-)
030105 704 1.0- 2.0+ 030111 349 1.8+ 2.3- 030204 608 (2.9+ 4.8-)
030106 446 0.5- 0.1- 030111 349 0.8+ 1.9- 030204 608 (3.9+ 4.5-)
030106 446 0.8- 0.4- 030111 213 1.7+ 1.9- 030204 608 (2.9+ 4.9-)
030106 446 0.0 0.1+ 030111 213 1.5+ 2.5- 030204 608 (4.3+ 3.9-)
030106 446 0.8- 0.1+ 030115 448 (2.9+ 4.1-) 030210 699 (2.9+ 3.2-)
030106 446 1.2- 0.1+ 030115 448 (3.3+ 3.7-) 030210 699 (2.9+ 2.8-)
030106 446 0.2- 0.6+ 030115 448 (3.2+ 3.9-) 030210 699 (3.0+ 2.2-)
030106 448 0.1- 0.2- 030116 204 (3.3+ 3.5-) 030210 699 (3.2+ 2.4-)
030106 670 (0.0 3.1+) 030116 204 (2.4+ 3.6-) 030211 608 1.8+ 1.9-
030106 448 1.9- 0.9- 030116 204 (3.0+ 3.9-) 030211 608 1.9+ 2.2-
030106 670 (1.2- 3.6+) 030116 204 (2.7+ 4.0-) 030216 J95 0.2+ 1.4-
030106 448 0.3- 0.3- 030117 448 (3.7+ 3.6-) 030216 J95 0.7+ 0.7-
030106 474 0.8+ 0.2+ 030117 448 (3.9+ 3.5-) 030218 J95 1.0+ 0.6-
030106 474 1.1+ 0.9+ 030117 448 (3.1+ 3.8-) 030218 J95 0.1+ 0.6-
030106 474 1.2+ 0.7- 030117 360 (2.8+ 4.4-) 030221 246 0.0 0.0
030106 474 (2.4- 4.2-) 030117 360 (3.0+ 4.2-) 030221 246 0.0 0.0
030106 474 1.7+ 2.1+ 030117 360 (3.4+ 4.1-) 030221 246 0.4- 0.1+
030107 704 1.2+ 1.6+ 030117 246 (3.1+ 4.8-) 030221 246 0.2- 0.0
030107 704 0.5- 0.2- 030117 246 (2.8+ 4.7-) 030221 246 0.2- 0.0
030107 858 0.1+ 0.3- 030117 246 (3.9+ 4.0-) 030221 246 0.5+ 0.1-
030107 858 0.0 0.2+ 030117 246 (3.9+ 4.5-) 030222 699 0.2+ 0.6-
030107 704 (3.1+ 1.0+) 030117 246 (3.8+ 4.2-) 030222 699 0.2+ 0.0
030107 704 1.0- 0.5+ 030117 246 (4.0+ 4.1-) 030222 699 2.1+ 0.4+
030107 858 0.4+ 0.2+ 030124 372 (6.0+ 2.8-) 030222 699 1.1+ 0.4-
030107 608 0.2- 0.6- 030125 130 (3.6+ 5.1-) 030222 J95 0.8+ 0.3+
030107 608 0.2- 0.1+ 030125 130 (3.2+ 5.0-) 030222 J95 0.1+ 0.4+
030107 608 0.1- 0.3- 030125 130 (3.0+ 4.9-) 030224 204 1.6- 0.0
030108 704 1.1+ 0.4- 030125 J95 (3.4+ 4.1-) 030224 204 0.9- 0.4+
030108 704 0.3+ 0.5- 030125 J95 (3.8+ 4.1-) 030224 204 0.6- 0.4+
030108 704 0.0 0.8- 030126 J95 (3.4+ 4.4-) 030224 204 1.0- 0.2+
030108 858 1.2+ 0.9- 030126 J95 (3.4+ 4.9-) 030305 213 1.6- 2.2-
030108 704 (2.9- 1.3-) 030128 608 (4.4+ 3.4-) 030305 213 2.0- 0.4-
030108 858 1.8+ 0.5- 030128 608 (4.9+ 4.2-) 030305 213 1.3- 1.8+
030108 704 0.1+ 0.5- 030128 608 (4.3+ 4.1-) 030313 J95(10.4- 1.0+)
030108 608 0.1- 1.5- 030128 372 (4.7+ 2.3-) 030313 J95 (9.4- 1.5+)
Note I can't judge yet whether the last observations are good or bad.
Last observations (Mar. 13 and 14) show small residuals from an orbit
using 2003 observations only. See below section of P/2003 A1.
NAKANO
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write mail from CFAD0::NAKANO on 2003-03-20 00:36:21(JST).
◎D/1783 W1 = P/2003 A1の軌道と予報位置です
2003年の観測が延びるにつれて，1783年と2003年の観測の連結が次第に
難しくなってきました． 220年も離れて，33公転した彗星を結ぶこと自体，
どだい無理があります．そうなることが分っていて，何もしないで，放っ
ておくセンタ−の気持ちが理解できません．そういう意味では，最初の連
結軌道と２番目の連結軌道が，彗星の同定を確立するベストの軌道です．
次の軌道は，2003年の近日点通過前後，１月15日から２月10日の55個の
観測を省いて，連結したものです．最後の観測（３月13日）の良し悪しが
分りませんが，2003年のみの改良では，精度の良い観測です．なお，彗星
は，あと，少しの期間，観測が可能です．
P/1783 W1 (Pigott) = P/2003 A1
Epoch 1783 Nov. 10.0 TT = JDT 2372600.5
T 1783 Nov. 15.62169 TT Nakano
q 1.4753635 (2000.0) P Q
n 0.15836160 Peri. 351.66631 +0.60722716 -0.50475951
a 3.3835256 Node 58.15276 +0.76425392 +0.15991956
e 0.5639567 Incl. 46.24732 +0.21723519 +0.84831808
P 6.22 (+/- 0.10 day)
Epoch 2003 Feb. 10.0 TT = JDT 2452680.5
T 2003 Feb. 1.51752 TT Nakano
q 1.9124233 (2000.0) P Q
n 0.14288622 Peri. 357.20541 +0.59705587 -0.53961387
a 3.6236187 Node 55.24721 +0.74930510 +0.11089851
e 0.4722338 Incl. 46.25759 +0.28647191 +0.83457678
P 6.90 (+/- 0.10 day)
From 89 observations 1783-2003, weighting mean residual 2".21.
Nongravitational parameters A1 = -4.18 +/- 0.29, A2 = +1.3086 +/- 0.0788.
Date/ TT R.A.(2000) Decl. Delta r Daily motion Mag. Moon Age
h h m ｡ , , / PA ｡ m1 ｡
2003 Mar. 15 11 02 31.34 +24 29.8 2.438 1.946 31.7 / 48 18.3 90 .88
16 11 02 33.06 +24 51.1 2.448 1.947 31.7 / 48 18.3 103 .94
17 11 02 34.79 +25 12.4 2.458 1.949 31.7 / 48 18.4 117 .98
18 11 02 36.54 +25 33.5 2.468 1.950 31.7 / 49 18.4 131 1.00
19 11 02 38.31 +25 54.4 2.478 1.952 31.7 / 49 18.4 145 .98
20 11 02 40.08 +26 15.3 2.488 1.954 31.7 / 49 18.4 158 .94
21 11 02 41.87 +26 36.0 2.498 1.955 31.7 / 49 18.4 167 .87
22 11 02 43.67 +26 56.6 2.508 1.957 31.7 / 50 18.4 165 .78
23 11 02 45.49 +27 17.1 2.517 1.959 31.8 / 50 18.4 154 .68
24 11 02 47.32 +27 37.4 2.527 1.961 31.8 / 50 18.4 142 .57
25 11 02 49.17 +27 57.6 2.537 1.963 31.8 / 51 18.5 129 .46
26 11 02 51.03 +28 17.7 2.546 1.965 31.8 / 51 18.5 117 .35
27 11 02 52.90 +28 37.7 2.556 1.967 31.8 / 51 18.5 104 .26
28 11 02 54.79 +28 57.6 2.565 1.969 31.8 / 52 18.5 93 .17
29 11 02 56.69 +29 17.3 2.574 1.971 31.8 / 52 18.5 81 .11
30 11 02 58.61 +29 36.9 2.584 1.973 31.8 / 52 18.5 69 .05
31 11 03 00.54 +29 56.4 2.593 1.975 31.8 / 52 18.5 58 .02
Apr. 1 11 03 02.49 +30 15.7 2.602 1.977 31.8 / 53 18.5 47 .00
2 11 03 04.45 +30 34.9 2.611 1.979 31.8 / 53 18.5 36 .00
3 11 03 06.42 +30 54.0 2.620 1.981 31.8 / 53 18.6 26 .02
4 11 03 08.41 +31 13.0 2.629 1.983 31.8 / 54 18.6 18 .06
5 11 03 10.41 +31 31.8 2.637 1.986 31.8 / 54 18.6 14 .11
6 11 03 12.43 +31 50.6 2.646 1.988 31.8 / 54 18.6 18 .18
7 11 03 14.46 +32 09.2 2.655 1.990 31.8 / 54 18.6 26 .26
8 11 03 16.51 +32 27.6 2.664 1.993 31.9 / 55 18.6 37 .35
9 11 03 18.57 +32 46.0 2.672 1.995 31.9 / 55 18.6 48 .45
10 11 03 20.65 +33 04.2 2.681 1.997 31.9 / 55 18.6 59 .55
11 11 03 22.74 +33 22.2 2.689 2.000 31.9 / 56 18.7 71 .65
12 11 03 24.84 +33 40.2 2.697 2.002 31.9 / 56 18.7 84 .75
13 11 03 26.97 +33 58.0 2.705 2.005 31.9 / 56 18.7 97 .84
14 11 03 29.10 +34 15.7 2.714 2.007 31.9 / 56 18.7 110 .92
15 11 03 31.25 +34 33.2 2.722 2.010 31.9 / 57 18.7 124 .97
NAKANO
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(C) Copyright 2003 OAA/ComputingSection
write mail from CFAD0::NAKANO on 2003-03-15 05:47:06(JST).
P/2003 A1
T 2003 Feb. 1.17714 TT Nakano
q 1.9159761 (2000.0) P Q
n 0.13886430 Peri. 357.04925 +0.59932588 -0.53746636
a 3.6932522 Node 55.18952 +0.74845120 +0.11335032
e 0.4812225 Incl. 46.26522 +0.28395297 +0.83563247
P 7.10 (+/- 1.41 day)
From 105 observations 2003 Jan. 5-Feb. 11.
NAKANO
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write mail from CFAD0::NAKANO on 2003-02-19 01:17:07(JST).
P/2003 A1
T 2003 Feb. 1.26347 TT Nakano
q 1.9156958 (2000.0) P Q
n 0.13901335 Peri. 357.08825 +0.59888942 -0.53797391
a 3.6906119 Node 55.19478 +0.74857530 +0.11286112
e 0.4809273 Incl. 46.25945 +0.28454608 +0.83537203
P 7.09 (+/- 3.23 day)
From 79 observations 2003 Jan. 5-28.
NAKANO
**** Don't distribute anyone except personal use only ****
(C) Copyright 2003 OAA/ComputingSection
write mail from CFAD0::NAKANO on 2003-01-30 23:15:24(JST).
◎D/1783 W1=P/2003 A1の連結軌道です
次の軌道は，彗星が1783年から2003年の 220年間に33回公転したものとして
計算したものです．非重力効果の数値が大きいですが，過去の経験から2003年
側の観測期間が伸びれば，小さな値（多分，A1=-1.5，A2=+0.3くらい）を示す
ようになるでしょう．
D/1783 W1 = P/2003 A1 (Pigott)
Epoch 1783 Nov. 10.0 TT = JDT 2372600.5
T 1783 Nov. 15.62599 TT Nakano
q 1.4754926 (2000.0) P Q
n 0.15834044 Peri. 351.64995 +0.60720572 -0.50500398
a 3.3838269 Node 58.16789 +0.76431212 +0.16031053
e 0.5639574 Incl. 46.21996 +0.21709031 +0.84809877
P 6.22 (+/- 0.10 day)
Epoch 2003 Feb. 10.0 TT = JDT 2452680.5
T 2003 Feb. 1.82630 TT Nakano
q 1.9119265 (2000.0) P Q
n 0.14287774 Peri. 357.34144 +0.59559655 -0.54143995
a 3.6237621 Node 55.26083 +0.74968051 +0.10933935
e 0.4723918 Incl. 46.22787 +0.28852017 +0.83359923
P 6.90 (+/- 0.10 day)
From 103 observations 1783-2003, mean residual 1".39.
Nongravitational parameters A1 = -5.27 +/- 0.14, A2 = +1.3047 +/- 0.0784.
Date/ TT R.A.(2000) Decl. Delta r Daily motion Mag. Moon Age
h h m ｡ , , / PA ｡ m1 ｡
2003 Jan. 26 12 01 25.39 +04 39.7 1.906 1.913 32.3 / 28 17.7 150 .37
27 12 01 26.40 +05 08.3 1.917 1.912 32.3 / 28 17.7 137 .27
28 12 01 27.43 +05 36.7 1.929 1.912 32.3 / 29 17.7 123 .17
29 12 01 28.48 +06 04.9 1.940 1.912 32.2 / 29 17.8 110 .10
30 12 01 29.54 +06 33.0 1.952 1.912 32.2 / 30 17.8 97 .04
31 12 01 30.62 +07 00.8 1.963 1.912 32.2 / 31 17.8 84 .01
Feb. 1 12 01 31.72 +07 28.5 1.974 1.912 32.1 / 31 17.8 71 .00
2 12 01 32.83 +07 56.0 1.986 1.912 32.1 / 32 17.8 59 .01
3 12 01 33.97 +08 23.4 1.997 1.912 32.1 / 32 17.8 46 .05
4 12 01 35.12 +08 50.6 2.009 1.912 32.0 / 33 17.8 35 .10
5 12 01 36.28 +09 17.6 2.020 1.912 32.0 / 33 17.8 23 .16
6 12 01 37.46 +09 44.4 2.032 1.912 32.0 / 34 17.9 12 .23
7 12 01 38.66 +10 11.1 2.043 1.913 32.0 / 34 17.9 3 .32
8 12 01 39.87 +10 37.6 2.055 1.913 32.0 / 34 17.9 12 .41
9 12 01 41.10 +11 03.9 2.066 1.913 31.9 / 35 17.9 23 .50
10 12 01 42.34 +11 30.1 2.078 1.913 31.9 / 35 17.9 35 .60
11 12 01 43.60 +11 56.1 2.089 1.914 31.9 / 36 17.9 46 .69
12 12 01 44.88 +12 21.9 2.100 1.914 31.9 / 36 17.9 58 .78
13 12 01 46.17 +12 47.6 2.112 1.915 31.9 / 37 17.9 71 .86
14 12 01 47.47 +13 13.2 2.123 1.915 31.8 / 37 18.0 83 .92
15 12 01 48.79 +13 38.5 2.134 1.915 31.8 / 38 18.0 96 .97
16 12 01 50.12 +14 03.8 2.146 1.916 31.8 / 38 18.0 110 .99
17 12 01 51.47 +14 28.8 2.157 1.917 31.8 / 38 18.0 124 .99
18 12 01 52.83 +14 53.8 2.168 1.917 31.8 / 39 18.0 138 .97
19 12 01 54.21 +15 18.5 2.180 1.918 31.8 / 39 18.0 151 .91
20 12 01 55.60 +15 43.1 2.191 1.919 31.8 / 40 18.0 165 .84
21 12 01 57.01 +16 07.6 2.202 1.919 31.8 / 40 18.0 173 .74
22 12 01 58.42 +16 31.9 2.213 1.920 31.8 / 40 18.1 165 .63
23 12 01 59.86 +16 56.1 2.224 1.921 31.8 / 41 18.1 152 .52
24 12 02 01.31 +17 20.1 2.235 1.922 31.7 / 41 18.1 138 .41
25 12 02 02.77 +17 44.0 2.246 1.923 31.7 / 42 18.1 125 .31
26 12 02 04.24 +18 07.8 2.257 1.923 31.7 / 42 18.1 113 .21
27 12 02 05.73 +18 31.4 2.268 1.924 31.7 / 42 18.1 100 .13
28 12 02 07.24 +18 54.8 2.279 1.925 31.7 / 43 18.1 88 .07
Mar. 1 12 02 08.75 +19 18.2 2.290 1.926 31.7 / 43 18.1 75 .03
NAKANO
**** Don't distribute anyone except personal use only ****
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write mail from CFAD0::NAKANO on 2003-01-29 03:53:11(JST).
◎D/1783 W1 = P/2003 A1の連結軌道です
我が国からは，まだ，観測が報告されていませんが，次の軌道は，彗星が
1783年から2003年までに33公転していると仮定して，D/1783 W1とP/2003 A1
とを結んだものです．彗星の周期が不確かなため，彗星の公転数は，この期
間に，29公転から37公転くらいした可能性があります．なお，33公転の場合，
彗星は，木星に1923 9 16.0に 0.35 AU, 1864 6 1.5に 0.57 AU, 1852 7 3.0
に 0.98 AU, 1793 4 7.5に 0.67 AUまで近づいたことになります．この間の
地球への最小接近は，1783年の出現でした．
D/1873 W1 = P/2003 A1 (Pigott)
Epoch 1783 Nov. 10.0 TT = JDT 2372600.5
T 1783 Nov. 15.61069 TT Nakano
q 1.4701437 (2000.0) P Q
n 0.15707775 Peri. 351.65106 +0.60812533 -0.50409448
a 3.4019371 Node 58.09683 +0.76367164 +0.16054361
e 0.5678510 Incl. 46.25019 +0.21676995 +0.84859561
P 6.27 (+/- 0.23 day)
Epoch 2003 Feb. 10.0 TT = JDT 2452680.5
T 2003 Jan. 30.76730 TT Nakano
q 1.9160875 (2000.0) P Q
n 0.14325949 Peri. 356.40576 +0.60538986 -0.52967238
a 3.6173216 Node 55.18045 +0.74710933 +0.12077048
e 0.4703021 Incl. 46.35793 +0.27446451 +0.83956040
P 6.88 (+/- 0.23 day)
From 70 observations 1783-2003, weighting mean residual 0".93.
Date/ TT R.A.(2000) Decl. Delta r Daily motion Mag. Moon Age
h h m ｡ , , / PA ｡ m1 ｡
2003 Jan. 15 11 01 15.51 -00 48.6 1.786 1.921 32.9 / 21 17.6 62 .90
16 11 01 16.30 -00 17.9 1.797 1.920 32.8 / 22 17.6 75 .96
17 11 01 17.12 +00 12.6 1.808 1.919 32.8 / 22 17.6 87 .99
18 11 01 17.95 +00 42.9 1.819 1.919 32.7 / 23 17.6 100 1.00
19 11 01 18.81 +01 12.9 1.830 1.919 32.6 / 24 17.6 113 .99
20 11 01 19.68 +01 42.8 1.842 1.918 32.6 / 24 17.7 127 .95
21 11 01 20.58 +02 12.5 1.853 1.918 32.5 / 25 17.7 140 .89
22 11 01 21.49 +02 42.0 1.864 1.917 32.5 / 26 17.7 154 .81
23 11 01 22.43 +03 11.3 1.876 1.917 32.4 / 26 17.7 168 .71
24 11 01 23.38 +03 40.4 1.887 1.917 32.4 / 27 17.7 178 .60
25 11 01 24.35 +04 09.4 1.898 1.917 32.3 / 27 17.7 165 .49
26 11 01 25.34 +04 38.1 1.910 1.916 32.3 / 28 17.7 151 .38
27 11 01 26.35 +05 06.7 1.921 1.916 32.2 / 28 17.7 137 .27
28 11 01 27.37 +05 35.0 1.933 1.916 32.2 / 29 17.8 124 .18
29 11 01 28.42 +06 03.2 1.944 1.916 32.2 / 29 17.8 111 .10
30 11 01 29.48 +06 31.2 1.956 1.916 32.1 / 30 17.8 97 .05
31 11 01 30.56 +06 59.0 1.967 1.916 32.1 / 31 17.8 84 .01
Feb. 1 11 01 31.65 +07 26.7 1.979 1.916 32.1 / 31 17.8 72 .00
2 11 01 32.77 +07 54.2 1.991 1.916 32.0 / 32 17.8 59 .01
3 11 01 33.90 +08 21.5 2.002 1.916 32.0 / 32 17.8 47 .04
4 11 01 35.04 +08 48.6 2.014 1.917 32.0 / 33 17.8 35 .09
5 11 01 36.20 +09 15.5 2.025 1.917 32.0 / 33 17.9 23 .16
6 11 01 37.38 +09 42.3 2.037 1.917 31.9 / 34 17.9 12 .23
7 11 01 38.58 +10 08.9 2.048 1.917 31.9 / 34 17.9 3 .32
8 11 01 39.78 +10 35.4 2.060 1.918 31.9 / 34 17.9 12 .41
9 11 01 41.01 +11 01.7 2.071 1.918 31.9 / 35 17.9 23 .50
10 11 01 42.25 +11 27.8 2.083 1.918 31.8 / 35 17.9 34 .59
11 11 01 43.51 +11 53.7 2.095 1.919 31.8 / 36 17.9 46 .69
12 11 01 44.78 +12 19.5 2.106 1.919 31.8 / 36 17.9 58 .77
13 11 01 46.06 +12 45.2 2.117 1.920 31.8 / 37 18.0 70 .85
14 11 01 47.36 +13 10.6 2.129 1.920 31.8 / 37 18.0 83 .92
15 11 01 48.68 +13 35.9 2.140 1.921 31.7 / 38 18.0 96 .97
NAKANO
**** Don't distribute anyone except personal use only ****
(C) Copyright 2003 OAA/ComputingSection
write mail from CFAD0::NAKANO on 2003-01-18 04:04:02(JST).
戻ります。