261P/Larson
From 563 observations 2005 July 3-2019 Aug. 13.(3) Kinoshita
Epoch = 2020 Feb. 1.0 TT = JDT 2458880.5
T = 2019 June 18.71395 TT peri.= 67.12634
e = 0.4229147 node = 291.16515 (2000.0)
q = 2.0134698 AU incl.= 6.07610
a = 3.4890336 AU n = 0.15123292 P = 6.52 years
m1 = 9.0 + 5log(delta) + 20.0log(r)
A. Node = E:07/14.5 JST O:2018/12/13.1 JST 2.461 AU
D. Node = E:01/12.6 JST O:2020/08/11.6 JST 3.429 AU
2020 JST R.A. (2000) D.C. Delta r Elong. Phase dMo./P.A. Tail/P.A. M-O Ag m1 H/A
01/12 21:50 03 08.90 +23 06.5 1.907 2.540 119.5 19.7 7.4/103.9 1.0/ 77 83 17 18.5 +60/ 76
01/13 21:50 03 09.42 +23 04.7 1.922 2.544 118.6 19.8 7.7/102.4 1.0/ 77 98 18 18.5 +59/ 76
01/14 21:50 03 09.96 +23 03.0 1.938 2.548 117.7 20.0 8.0/101.1 1.0/ 77 112 19 18.6 +58/ 77
01/15 21:50 03 10.53 +23 01.5 1.953 2.553 116.8 20.1 8.2/ 99.9 1.0/ 77 126 20 18.6 +58/ 78
01/16 21:50 03 11.12 +23 00.1 1.969 2.557 115.9 20.2 8.5/ 98.8 1.0/ 77 140 21 18.6 +57/ 78
01/17 21:50 03 11.73 +22 58.8 1.984 2.561 115.1 20.4 8.8/ 97.7 1.0/ 77 153 22 18.7 +56/ 79
01/18 21:50 03 12.36 +22 57.6 2.000 2.565 114.2 20.5 9.1/ 96.8 1.0/ 77 165 23 18.7 +56/ 80
01/19 21:40 03 13.01 +22 56.5 2.016 2.569 113.3 20.6 9.4/ 95.9 1.0/ 77 171 24 18.7 +57/ 78
01/20 21:40 03 13.68 +22 55.6 2.031 2.573 112.4 20.7 9.6/ 95.1 1.0/ 77 163 25 18.7 +56/ 79
01/21 21:40 03 14.38 +22 54.7 2.047 2.577 111.6 20.8 9.9/ 94.3 1.0/ 77 151 26 18.8 +56/ 80
01/22 21:40 03 15.09 +22 53.9 2.063 2.582 110.7 20.9 10.2/ 93.6 0.9/ 77 138 27 18.8 +55/ 80
01/23 21:40 03 15.83 +22 53.3 2.080 2.586 109.9 21.0 10.5/ 93.0 0.9/ 76 126 28 18.8 +54/ 81
01/24 21:40 03 16.58 +22 52.7 2.096 2.590 109.0 21.1 10.7/ 92.4 0.9/ 76 113 29 18.9 +54/ 81
01/25 21:40 03 17.36 +22 52.3 2.112 2.594 108.2 21.1 11.0/ 91.8 0.9/ 76 101 1 18.9 +53/ 82
01/26 21:40 03 18.16 +22 51.9 2.129 2.598 107.4 21.2 11.3/ 91.3 0.9/ 76 89 2 18.9 +52/ 82
01/27 21:40 03 18.97 +22 51.7 2.145 2.602 106.5 21.3 11.5/ 90.8 0.9/ 76 77 2 19.0 +52/ 83
01/28 21:30 03 19.80 +22 51.5 2.161 2.606 105.7 21.3 11.8/ 90.3 0.9/ 76 66 3 19.0 +53/ 82
01/29 21:40 03 20.65 +22 51.4 2.178 2.611 104.9 21.4 12.0/ 89.9 0.9/ 76 54 4 19.0 +50/ 84
01/30 21:40 03 21.52 +22 51.5 2.195 2.615 104.1 21.4 12.3/ 89.5 0.9/ 76 43 5 19.1 +50/ 85
01/31 21:30 03 22.40 +22 51.5 2.211 2.619 103.2 21.5 12.5/ 89.1 0.9/ 76 31 6 19.1 +51/ 83
02/01 21:30 03 23.31 +22 51.7 2.228 2.623 102.4 21.5 12.7/ 88.8 0.9/ 76 20 7 19.1 +51/ 84
02/02 21:30 03 24.23 +22 52.0 2.245 2.627 101.6 21.6 13.0/ 88.5 0.9/ 76 10 8 19.1 +50/ 84
02/03 21:30 03 25.16 +22 52.3 2.262 2.632 100.8 21.6 13.2/ 88.2 0.9/ 76 9 9 19.2 +49/ 85
02/04 21:30 03 26.12 +22 52.7 2.279 2.636 100.0 21.6 13.4/ 87.9 0.9/ 76 19 10 19.2 +49/ 85
02/05 21:30 03 27.09 +22 53.2 2.296 2.640 99.2 21.6 13.6/ 87.6 0.9/ 76 32 11 19.2 +48/ 86
02/06 21:30 03 28.07 +22 53.8 2.313 2.644 98.4 21.6 13.8/ 87.4 0.9/ 76 45 12 19.3 +48/ 86
02/07 21:30 03 29.07 +22 54.4 2.330 2.648 97.7 21.7 14.0/ 87.1 0.9/ 76 58 13 19.3 +47/ 87
02/08 21:30 03 30.09 +22 55.1 2.347 2.653 96.9 21.7 14.2/ 86.9 0.9/ 76 72 14 19.3 +46/ 87
02/09 21:30 03 31.12 +22 55.9 2.364 2.657 96.1 21.7 14.4/ 86.7 0.9/ 76 87 15 19.4 +46/ 88
02/10 21:20 03 32.15 +22 56.7 2.381 2.661 95.3 21.7 14.6/ 86.5 0.9/ 76 101 16 19.4 +47/ 87
02/11 21:20 03 33.21 +22 57.5 2.398 2.665 94.6 21.7 14.8/ 86.4 0.8/ 77 116 17 19.4 +47/ 87
02/12 21:20 03 34.28 +22 58.5 2.416 2.670 93.8 21.6 15.0/ 86.2 0.8/ 77 130 18 19.4 +46/ 88
