64P/Swift-Gehrels
Epoch 2000 Apr. 6.0 TT = JDT 2451640.5
T 2000 Apr. 21.82017 TT Nakano
q 1.3388462 (2000.0) P Q
n 0.10736533 Peri. 92.41512 +0.77326559 -0.62291157
a 4.3842300 Node 306.14093 +0.50768135 +0.72017623
e 0.6946223 Incl. 8.43764 +0.37989470 +0.30549528
P 9.18
From 64 observations 1981-2009, mean residual 0".83.
Nongravitational parameters A1 = +0.09 +/- 0.02, A2 = +0.0379 +/- 0.0002.
Residuals in seconds of arc
1981/ 811126 491 0.4+ 0.3+ 001222 696 0.5+ 0.4+
810711 801 (2.0- 4.9+) 811127 489 0.6- 0.8+ 001222 696 0.6+ 0.1-
810731 801 1.1+ 1.2+ 811127 489 0.9- 0.8+ 001223 696 0.2- 0.3+
810801 801 0.3+ 0.6- 811128 494 0.5+ 0.3- 001223 696 0.5+ 0.1+
810802 801 0.5- 1.4- 811128 494 0.2+ 1.3- 001229 867 0.2- 0.1+
810805 372 (0.7- 4.8+) 811201 020 (5.6+ 3.2+) 001229 867 0.1- 0.5+
810824 046 0.3+ 1.3+ 811217 489 1.0+ 0.7+ 001229 867 0.2- 0.8+
810824 046 0.2- 1.3+ 811217 489 0.5+ 0.4+ 2001/
810826 801 1.0+ 0.6- 811219 801 (6.4- 0.3+) 010226 360 0.9- 0.4+
810828 046 (1.0+ 3.0-) 811222 494 (5.1+ 0.8+) 010226 360 0.8+ 0.2+
810828 046 0.5+ 1.8- 811222 489 (4.7+ 3.9+) 010226 360 0.5+ 0.8-
810901 381 (5.2+ 1.8-) 811222 489 0.3+ 0.0 010226 867 0.2+ 0.5+
810906 046 0.6+ 1.8+ 811222 494 1.2+ 1.4- 010226 867 0.1- 0.3-
810906 046 1.4- 0.8- 811231 489 0.2- 0.8- 010226 867 0.1+ 0.0
810921 046 1.2- 0.5- 1982/ 2009/
810925 801 1.2- 1.3+ 820117 887 1.5- 1.5- 090626 349 (3.6+ 0.4-)
810929 491 0.9- 1.9+ 820120 801 1.3- 0.0 090626 349 (4.3+ 1.0-)
810930 491 2.2+ 1.2- 820125 491 1.2- 0.4- 090626 349 (4.0+ 1.1-)
811028 491 0.8- 0.3- 820126 491 0.7+ 1.6+ 090626 349 (3.5+ 0.3-)
811029 020 (1.0+ 3.6+) 1991/ 090707 349 0.1- 0.4+
811029 491 0.8- 0.3- 910107 372 0.5- 2.1- 090707 349 0.3- 0.6+
811102 801 0.0 0.3- 910107 372 (5.3- 0.0 ) 090712 349 0.0 0.7-
811105 707 0.5- 0.5+ 910112 372 1.9- 0.8+ 090712 349 0.7+ 0.2-
811115 707 1.5+ 0.4- 910113 372 (0.2- 3.7-) 090715 349 0.4+ 0.1-
811115 504(78.9+ 30.8+) 910113 372 (3.3- 1.0-) 090715 349 0.3- 0.3+
811115 504(76.0+ 32.3+) 910113 372 0.3- 0.7- 090715 349 0.5- 0.5+
811123 801 (0.6+ 2.7+) 910113 372 0.8- 0.1- 090715 349 0.7- 0.5+
811125 491 (3.0+ 1.4+) 910402 372 1.8+ 0.7+ 090719 349 0.5+ 0.1+
811126 552 0.2+ 0.3- 910402 372 1.6+ 1.2+ 090719 349 0.1+ 0.2-
811126 552 (2.7+ 2.6-) 910402 372 0.5- 0.1-
811126 552 0.5+ 0.1+ 2000/
NAKANO
**** Don't distribute anyone except personal use only ****
(C) Copyright 2009 OAA/ComputingSection
write mail from CFAD0::NAKANO on 2009-07-29 07:36:14(JST).
◎64Pの軌道です
MPEC O02 (2009)にあるとおり,上尾の門田健一氏は,6月26日に明け方の
低空を動くこの彗星の観測に成功し,続いて,7月7日,12日,15日とこの
彗星を確認しました.氏のこれらの観測は,予報軌道(NK 1316(= HICQ 2008
/2009))から赤経方向に約-85"のずれがあり,近日点通過時刻への補正値は,
儺=+0.053日でした.なお,氏のCCD全光度は,それぞれ,13.9等,13.7等,
13.8等,13.9等でした.天文ガイドに紹介したとおり,この彗星の観測は,
現在,難しく,観測可能となる秋頃には19等級まで暗くなっているでしょう.
64P/Swift-Gehrels
Epoch 2009 June 18.0 TT = JDT 2455000.5
T 2009 June 14.35377 TT Nakano
q 1.3770044 (2000.0) P Q
n 0.10550775 Peri. 96.30548 +0.78772158 -0.60134096
a 4.4355397 Node 300.74300 +0.48557853 +0.73969125
e 0.6895520 Incl. 8.95138 +0.37908864 +0.30206937
P 9.34
From 62 observations 1981-2009, mean residual 0".84.
Nongravitational parameters A1 = +0.09 +/- 0.03, A2 = +0.0379 +/- 0.0002.
NAKANO
**** Don't distribute anyone except personal use only ****
(C) Copyright 2009 OAA/ComputingSection
write mail from CFAD0::NAKANO on 2009-07-19 05:18:30(JST).
*** Residual = 39" for the last observation ***
64P/Swift-Gehrels
Epoch 2000 Apr. 6.0 TT = JDT 2451640.5
T 2000 Apr. 21.80372 TT Nakano
q 1.3388520 (2000.0) P Q
n 0.10736785 Peri. 92.41367 +0.77328277 -0.62289042
a 4.3841615 Node 306.14081 +0.50766235 +0.72019022
e 0.6946162 Incl. 8.43756 +0.37988511 +0.30550544
P 9.18
From 56 observations 1973-2000, mean residual 0".95. Nongravitational
parameters A1 = +0.27 +/- 0.03, A2 = +0.0258 +/- 0.0004.
NAKANO
**** Don't distribute anyone except personal use only ****
(C) Copyright 2001 OAA/ComputingSection
write mail from CFAD0::NAKANO on 2001-01-07 02:42:24(JST).
戻ります。