記事タイトル:Comet C/2002 U2 (LINEAR) 

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[2005年5月10日 6時23分12秒]

お名前: 佐藤 裕久   
今朝の門田氏の観測を入れて軌道を計算しました。

Orbital elements:
    C/2002 U2 (LINEAR)
T 2002 Dec. 29.4456 TT                                  Sato
q   1.243833             (2000.0)            P               Q
                   Peri.   92.5643      -0.3566900      -0.7674922
                   Node    38.4932      +0.0054973      -0.5718795
e   1.0            Incl.   58.8469      +0.9342066      -0.2896714
From 22 observations 2002 Oct. 25-26, mean residual 0".60.
[2002年10月27日 8時43分55秒]

お名前: 佐藤 裕久   
M. Bezpalko (Lincoln研究所、MIT)の通報によると、LINEARによりP.A.約270°に尾の
ある彗星を発見した。
L. Sarounova (Ondrejov天文台)の報告では、10月26.0日UTに0.65-m反射+CCDで得た
画像から10″のコマ(m1 =15.5)とP.A.280°に少なくとも2′の狭い尾が見える。

発見位置は次のとおり、

     2002 UT             R.A. (2000) Decl.        m1
     Oct. 25.43912    8 09 45.15   +72 37 35.8   17.3

軌道要素と位置推算表は次のとおり、

Orbital elements:
    C/2002 U2 (LINEAR)
T 2003 Jan. 3.945 TT                                    MPC
q   1.15645              (2000.0)            P               Q
                   Peri.  100.305       -0.454087       -0.706410
                   Node    39.082       -0.084411       -0.572545
e   1.0            Incl.   59.455       +0.886950       -0.416146
From 19 observations 2002 Oct. 25-26.

Ephemeris:
    C/2002 U2 (LINEAR)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1
2002 10 23    07 40.8    +70 38.4    1.093    1.616   101.3    37.1  15.3
2002 10 25    08 04.0    +72 17.0    1.074    1.595   100.8    37.8  15.2
2002 10 27    08 31.9    +73 46.4    1.058    1.575   100.2    38.4  15.1
2002 10 29    09 05.0    +75 02.6    1.044    1.555    99.5    39.0  15.0
2002 10 31    09 43.5    +76 00.3    1.032    1.536    98.7    39.7  14.9
2002 11 02    10 26.5    +76 34.5    1.021    1.516    97.7    40.4  14.9
2002 11 04    11 11.8    +76 41.4    1.012    1.497    96.7    41.1  14.8
2002 11 06    11 56.4    +76 20.0    1.006    1.478    95.5    41.9  14.7
2002 11 08    12 37.5    +75 32.5    1.001    1.460    94.3    42.6  14.6
2002 11 10    13 13.4    +74 23.4    0.998    1.442    93.0    43.3  14.6
2002 11 12    13 43.9    +72 57.7    0.996    1.424    91.6    44.0  14.5
2002 11 14    14 09.3    +71 20.3    0.996    1.406    90.2    44.7  14.5
2002 11 16    14 30.45   +69 34.9    0.998    1.389    88.7    45.4  14.4
2002 11 18    14 48.12   +67 44.7    1.001    1.373    87.2    46.0  14.4
2002 11 20    15 03.01   +65 51.7    1.005    1.356    85.8    46.6  14.3
2002 11 22    15 15.67   +63 57.7    1.011    1.340    84.2    47.2  14.3

(IAUC 8000、MPEC 2002-U33)
[2002年10月27日 3時49分39秒]

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