Comet P/2010 A2 = 2017 B5 (LINEAR)
昨年1月、P/2010 A2 (IAUC 9105, 9109, 9110を参照)が、Y. Kimによって、Mauna Keaにある8.1-m
"Gemini North" telescopeで得たCCD像から小惑星状で検出された (光度は不明)。
ICQ's 2017 Comet Handbook (p. H9)の中野主一氏の予報に対して、Delta(T)は、+0.16 dayであった。
検出位置は次のとおり、
2017 UT R.A. (2000) Decl. Mag. Observer
Jan. 26.42602 8 03 07.82 +23 39 55.6 Kim
26.42985 8 03 07.55 +23 39 55.4 "
27.44496 8 01 58.88 +23 39 04.4 "
27.55674 8 01 51.05 +23 38 57.2 "
28.25903 8 01 05.11 +23 38 17.6 "
28.54952 8 00 45.02 +23 38 00.9 "
連結軌道要素と位置推算表は次のとおり、
Orbital elements:
P/2010 A2 (LINEAR)
Epoch 2009 Nov. 25.0 TT = JDT 2455160.5
T 2009 Dec. 4.20596 TT MPCW
q 2.0052214 (2000.0) P Q
n 0.28439929 Peri. 133.03439 -0.05993133 -0.99648600
a 2.2900786 Node 320.28883 +0.88714315 -0.02630012
e 0.1243875 Incl. 5.25468 +0.45758635 -0.07952327
P 3.47
From 135 observations 2010 Jan. 6-2017 Jan. 28, mean residual 0".3.
P/2010 A2 (LINEAR)
Epoch 2013 May 28.0 TT = JDT 2456440.5
T 2013 May 22.23087 TT MPCW
q 2.0035690 (2000.0) P Q
n 0.28431857 Peri. 132.82619 -0.05548135 -0.99674010
a 2.2905120 Node 320.24117 +0.88727438 -0.02231446
e 0.1252746 Incl. 5.25487 +0.45789299 -0.07753218
P 3.47
From 135 observations 2010 Jan. 6-2017 Jan. 28, mean residual 0".3.
P/2010 A2 (LINEAR)
Epoch 2016 Nov. 28.0 TT = JDT 2457720.5
T 2016 Nov. 8.12340 TT MPCW
q 2.0048522 (2000.0) P Q
n 0.28442972 Peri. 132.84528 -0.05556188 -0.99673414
a 2.2899152 Node 320.22668 +0.88727600 -0.02237516
e 0.1244863 Incl. 5.25552 +0.45788008 -0.07759123
P 3.47
From 135 observations 2010 Jan. 6-2017 Jan. 28, mean residual 0".3.
P/2010 A2 (LINEAR)
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5
T 2016 Nov. 8.49268 TT MPCW
q 2.0051413 (2000.0) P Q
n 0.28430873 Peri. 132.98519 -0.05783763 -0.99660487
a 2.2905648 Node 320.21764 +0.88723467 -0.02440462
e 0.1246084 Incl. 5.25423 +0.45767833 -0.07863302
P 3.47
From 135 observations 2010 Jan. 6-2017 Jan. 28, mean residual 0".3.
Ephemeris:
P/2010 A2 (LINEAR)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1
2017 05 22 09 05 14.6 +14 45 08 2.2105 2.1547 73.5 26.8 20.6
...
2017 06 06 09 29 56.0 +12 35 58 2.3894 2.1749 65.5 25.1 20.8
...
2017 06 14 09 43 26.5 +11 21 17 2.4816 2.1859 61.4 24.1 20.9
...
2017 06 20 09 53 41.0 +10 22 49 2.5489 2.1942 58.4 23.2 20.9
2017 06 21 09 55 23.9 +10 12 53 2.5600 2.1956 57.9 23.1 21.0
2017 06 22 09 57 06.9 +10 02 53 2.5710 2.1970 57.4 22.9 21.0
...
2017 06 28 10 07 27.3 +09 01 46 2.6361 2.2054 54.4 22.0 21.0
...
2017 07 06 10 21 19.2 +07 37 30 2.7197 2.2166 50.5 20.7 21.1
...
2017 07 21 10 47 28.9 +04 52 06 2.8664 2.2379 43.3 18.1 21.3
(CBET 4405、MPEC 2017-M38)