Comet P/2010 K2 = 2015 B3 (WISE) G. V. Williamsは、Haleakalaにある1.8-m Pan-STARRS1望遠鏡で得た1月26日と3月18日の画像が P/2010 K2であることを小惑星センターのデータの位置観測から確認した。 この検出のため外見上小惑星状のイメージはMPC 79350のB. G. Marsdenの予報に対し、Delta(T)は、 +3.2 daysであった。 検出位置は次のとおり、 2015 UT R.A. (2000) Decl. Mag. Jan. 26.46076 10 08 50.01 - 3 56 56.3 22.0 26.47213 10 08 49.46 - 3 56 59.5 21.9 26.48348 10 08 48.92 - 3 57 02.4 21.8 Mar. 18.34856 9 11 57.77 - 3 34 37.2 21.2 18.36151 9 11 57.03 - 3 34 33.7 21.3 18.37447 9 11 56.29 - 3 34 30.0 21.2 18.38738 9 11 55.56 - 3 34 26.6 21.2 連結軌道要素、位置推算表は次のとおり、 Orbital elements: P/2010 K2 = 2015 B3 (WISE) Epoch 2010 July 23.0 TT = JDT 2455400.5 T 2010 July 7.54838 TT MPCW q 1.1983384 (2000.0) P Q n 0.19727461 Peri. 328.52572 -0.33881606 +0.92322882 a 2.9225050 Node 281.13169 -0.82030255 -0.38421623 e 0.5899619 Incl. 10.64523 -0.46076827 +0.00514098 P 5.00 From 62 observations 2010 May 27-2015 Mar. 18, mean residual 0".4. P/2010 K2 = 2015 B3 (WISE) Epoch 2015 Aug. 6.0 TT = JDT 2457240.5 T 2015 Aug. 16.78890 TT MPCW q 1.2762153 (2000.0) P Q n 0.19286560 Peri. 334.78826 -0.32700738 +0.92231830 a 2.9668769 Node 275.56751 -0.82820971 -0.38463197 e 0.5698455 Incl. 11.93938 -0.45512070 +0.03724516 P 5.11 From 62 observations 2010 May 27-2015 Mar. 18, mean residual 0".4. P/2010 K2 = 2015 B3 (WISE) Epoch 2020 Sept. 28.0 TT = JDT 2459120.5 T 2020 Sept. 26.18630 TT MPCW q 1.2737571 (2000.0) P Q n 0.19304101 Peri. 334.91010 -0.32581882 +0.92269137 a 2.9650794 Node 275.51937 -0.82874013 -0.38365554 e 0.5704138 Incl. 11.95090 -0.45500757 +0.03806647 P 5.11 From 62 observations 2010 May 27-2015 Mar. 18, mean residual 0".4. P/2010 K2 = 2015 B3 (WISE) Epoch 2015 June 27.0 TT = JDT 2457200.5 T 2015 Aug. 16.78695 TT MPCW q 1.2762214 (2000.0) P Q n 0.19286079 Peri. 334.78643 -0.32703427 +0.92230886 a 2.9669263 Node 275.56767 -0.82819832 -0.38465594 e 0.5698507 Incl. 11.93936 -0.45512211 +0.03723134 P 5.11 From 62 observations 2010 May 27-2015 Mar. 18, mean residual 0".4. Ephemeris: P/2010 K2 (WISE) Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 2015 02 18 09 45 27.4 -04 51 46 1.2637 2.2265 162.6 7.6 21.5 ... 2015 03 05 09 26 25.6 -04 27 22 1.1868 2.1237 154.1 11.8 21.1 ... 2015 03 13 09 17 13.9 -03 58 08 1.1684 2.0684 146.0 15.6 21.0 ... 2015 03 19 09 11 23.0 -03 31 34 1.1635 2.0269 139.6 18.6 20.9 2015 03 20 09 10 31.1 -03 26 53 1.1633 2.0200 138.5 19.1 20.9 2015 03 21 09 09 41.3 -03 22 10 1.1633 2.0130 137.5 19.5 20.9 ... 2015 03 27 09 05 28.8 -02 53 26 1.1667 1.9715 131.1 22.4 20.8 ... 2015 04 04 09 02 05.6 -02 16 07 1.1786 1.9162 123.0 26.0 20.7 ... 2015 04 19 09 02 57.7 -01 19 48 1.2148 1.8132 109.2 31.5 20.5 (CBET 4077、MPEC 2015-F33)