261P/Larson
Last updated 2019 Sept.12
+ Orbit O-C
261P/Larson
From 563 observations 2005 July 3-2019 Aug. 13, mean residual 0".69.
Nongravitational parameters A1 = -0.47, A2 = +0.0877.
Epoch = 2019 June 6.0 TT JDT = 2458640.5
T = 2019 June 18.6692888381 TT +/- 0.0011607379 0.0000000008
Peri. = 67.1089625500 +/- 0.0004305196 0.0000000004
Node = 291.1669443546 (2000.0) +/- 0.0001304343 -0.0000000001
Incl. = 6.0760671450 +/- 0.0000129084 -0.0000000000
q = 2.0134082948 AU +/- 0.0000023758 -0.0000000000
e = 0.4227416009 +/- 0.0000005889 0.0000000000
A1 = -0.4719339706 +/- 0.1808302916 -0.0000000224
A2 = 0.0876843508 +/- 0.0015444374 0.0000000006
a = 3.4878804669 AU +/- 0.0000015599
n = 0.1513079282 +/- 0.0000001015
P = 6.5139195307 years +/- 0.0000043698
261P Larson *18950818.93132 2.2642872 0.3693509 30.24075 321.59335 8.79449 18950904 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.80 3.5904075
261P Larson *19020613.29451 2.2961294 0.3635649 30.07413 321.30682 8.76550 19020620 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.85 3.6077982
261P Larson *19090424.43322 2.3082068 0.3617342 30.12634 321.27705 8.75301 19090514 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.88 3.6163726
261P Larson *19160304.25439 2.2993980 0.3634697 29.97342 321.27240 8.75789 19160227 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.87 3.6123934
261P Larson *19230103.66371 2.2868797 0.3653462 29.67857 321.15037 8.76019 19230121 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.84 3.6033499
261P Larson *19291106.27124 2.2793442 0.3663013 29.89427 321.07450 8.76448 19291105 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.82 3.5968897
Jupiter 0.5898 19321031.6
261P Larson *19370127.30550 2.3257644 0.3639110 52.94740 304.59864 6.57729 19370127 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.99 3.6563507
261P Larson *19440201.62232 2.3354500 0.3625711 53.18149 304.50585 6.56921 19440131 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 7.01 3.6638597
261P Larson *19510131.40467 2.3362149 0.3630519 52.75600 304.48394 6.56407 19510203 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 7.02 3.6678260
261P Larson *19580203.70852 2.3434706 0.3612951 52.56659 304.42358 6.55917 19580206 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 7.03 3.6690975
261P Larson *19650211.26228 2.3313018 0.3630423 52.72494 304.36540 6.56470 19650209 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 7.00 3.6600576
261P Larson *19720114.65869 2.1526196 0.3959321 58.41820 299.37705 6.36468 19720104 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.73 3.5635393
261P Larson *19781011.70354 2.1546625 0.3957071 58.64620 299.27260 6.36159 19781019 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.73 3.5655928
261P Larson *19850715.34067 2.1953685 0.3881724 58.88258 298.74613 6.32989 19850803 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.80 3.5882141
261P Larson *19920506.70550 2.2069914 0.3864400 58.94922 298.69539 6.32157 19920518 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.82 3.5970264
261P Larson *19990225.63278 2.1994463 0.3880970 58.79456 298.68266 6.32275 19990303 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.81 3.5944362
261P/2005 N3 Larson 20051210.58436 2.1970136 0.3880753 58.50968 298.60421 6.32497 20051216 563 20050703 20190813 9.0 20.0 h3E3 0.7 1 2 -0.47 +0.0877 Kinoshita P 6.80 3.5903333
261P/2012 K4 Larson 20120929.13277 2.1868841 0.3895987 58.82097 298.48078 6.32548 20120930 563 20050703 20190813 9.0 20.0 h3E3 0.7 2 2 -0.47 +0.0877 Kinoshita P 6.78 3.5826987
261P Larson 20190618.66929 2.0134083 0.4227416 67.10896 291.16694 6.07607 20190606 563 20050703 20190813 9.0 20.0 h3E3 0.7 3 2 -0.47 +0.0877 Kinoshita P 6.51 3.4878805
261P Larson *20251227.45115 2.0142119 0.4226544 67.37185 291.05273 6.07349 20251231 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.52 3.4887456
261P Larson *20320727.72776 2.0825048 0.4096615 68.90567 289.56582 6.01027 20320727 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.63 3.5276453
261P Larson *20390319.53621 2.0909550 0.4084927 69.06271 289.48123 6.00308 20390402 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.65 3.5349606
261P Larson *20451105.94196 2.0939078 0.4082084 68.80362 289.43042 5.99885 20451027 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.66 3.5382522
261P Larson *20520701.18389 2.1019403 0.4066210 68.70512 289.39750 5.99404 20520702 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.67 3.5423235
261P Larson *20590226.04189 2.0915286 0.4084571 68.74935 289.35808 5.99836 20590308 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.65 3.5357174
261P Larson *20651007.96847 2.0721146 0.4117793 68.55443 289.16130 6.00990 20651002 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.61 3.5226820
261P Larson *20720520.36128 2.0656432 0.4127053 68.90837 289.00040 6.01015 20720607 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.60 3.5172175
Jupiter 0.8038 20751203.3
261P Larson *20790106.07035 1.9208534 0.4415038 92.82236 267.40745 5.74247 20790102 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.38 3.4393313
261P Larson *20850528.36256 1.9224273 0.4412891 93.08377 267.28471 5.74197 20850510 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.38 3.4408264
261P Larson *20911109.31776 1.9911046 0.4279091 94.86507 265.58216 5.72625 20911026 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.49 3.4803992
261P Larson *20980513.37074 1.9983527 0.4268589 95.05391 265.47770 5.72160 20980522 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.51 3.4866678
261P Larson *21041114.13891 2.0069613 0.4253838 94.83868 265.38252 5.71610 21041107 563 20050703 20190813 9.0 20.0 h3E3 0.7 x 2 -0.47 +0.0877 Kinoshita P 6.53 3.4926986
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