Коррекция орбиты некоторых периодических комет от 9 октября ..

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Коррекция орбиты некоторых периодических комет от 9 октября 2026 года, MPEC 2026-T185

Orbital elements:
2P/Encke
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2027 Feb. 10.22967 TT Alexandersen
q 0.3386646 (2000.0) P Q
n 0.29841129 Peri. 187.28390 -0.94614407 -0.31206020
a 2.2178179 Node 334.01960 +0.30607130 -0.77543484
e 0.8472983 Incl. 11.34796 +0.10550713 -0.54892553
P 3.30
From 3771 observations 2009 Aug. 15-2026 Oct. 9, mean residual 0".7.
Nongravitational parameters A1 = +0.02, A2 = -0.0000.

11P/Tempel-Swift-LINEAR
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Nov. 9.95590 TT Alexandersen
q 1.3874519 (2000.0) P Q
n 0.16574003 Peri. 168.07014 +0.67740058 -0.70401701
a 3.2823466 Node 238.85274 +0.65276479 +0.70896248
e 0.5772988 Incl. 14.43051 +0.33915569 +0.04162037
P 5.95
From 1473 observations 2014 July 27-2026 Oct. 8, mean residual 0".5.
Nongravitational parameters A1 = +0.08, A2 = -0.0127.

12P/Pons-Brooks
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2024 Apr. 21.19474 TT Alexandersen
q 0.7817203 (2000.0) P Q
n 0.01373051 Peri. 199.03025 +0.14458004 -0.32980927
a 17.2720885 Node 255.86436 +0.98579309 +0.12946756
e 0.9547408 Incl. 74.16281 +0.08549033 -0.93512780
P 71.8
From 4403 observations 2023 Oct. 1-2025 June 7, mean residual 0".6.
Nongravitational parameters A1 = +0.60, A2 = -0.2268.

31P/Schwassmann-Wachmann
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2028 Mar. 19.36607 TT Alexandersen
q 3.4095336 (2000.0) P Q
n 0.11334167 Peri. 18.06458 -0.67052110 -0.73834893
a 4.2287269 Node 114.11163 +0.67051255 -0.64488475
e 0.1937210 Incl. 4.54976 +0.31751281 -0.19739432
P 8.70
From 1056 observations 2000 Nov. 24-2026 Oct. 6, mean residual 0".7.
Nongravitational parameters A1 = +0.07, A2 = -0.0056.

42P/Neujmin
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Jan. 14.91311 TT Alexandersen
q 2.0295854 (2000.0) P Q
n 0.09144755 Peri. 147.11415 +0.45882576 +0.88785172
a 4.8792679 Node 150.15502 -0.82949320 +0.44198001
e 0.5840389 Incl. 3.98858 -0.31846501 +0.12795700
P 10.8
From 299 observations 1972 Apr. 17-2026 Oct. 4, mean residual 0".7.
Nongravitational parameters A1 = +0.91, A2 = +0.1048.

65P/Gunn
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2025 June 16.16973 TT Alexandersen
q 2.9258069 (2000.0) P Q
n 0.12841172 Peri. 213.61474 +0.09098029 +0.98585742
a 3.8910452 Node 61.96505 -0.87496784 +0.14662245
e 0.2480666 Incl. 9.17495 -0.47555638 -0.08116037
P 7.68
From 3278 observations 2013 Jan. 1-2026 Oct. 8, mean residual 0".7.
Nongravitational parameters A1 = +0.03, A2 = +0.0067.

78P/Gehrels
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 June 25.10900 TT Alexandersen
q 2.0045251 (2000.0) P Q
n 0.13672126 Peri. 192.79717 +0.72855226 -0.68275344
a 3.7317454 Node 210.49365 +0.63767949 +0.70550644
e 0.4628452 Incl. 6.25767 +0.25015289 +0.19002211
P 7.21
From 3086 observations 2018 May 15-2026 Oct. 7, mean residual 0".7.
Nongravitational parameters A1 = -0.28, A2 = -0.0294.

88P/Howell
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Mar. 18.74845 TT Alexandersen
q 1.3577708 (2000.0) P Q
n 0.17979596 Peri. 235.85763 +0.38107040 +0.92233966
a 3.1089669 Node 56.66768 -0.82111457 +0.36936410
e 0.5632727 Incl. 4.38187 -0.42491907 +0.11340065
P 5.48
From 3028 observations 2015 July 7-2026 Oct. 9, mean residual 0".9.
Nongravitational parameters A1 = +0.92, A2 = +0.0077.

112P/Urata-Niijima
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Sept. 21.86584 TT Alexandersen
q 1.4411642 (2000.0) P Q
n 0.14917420 Peri. 21.58543 +0.61354938 -0.75953728
a 3.5210612 Node 31.79421 +0.65116022 +0.33189629
e 0.5907017 Incl. 24.20403 +0.44670743 +0.55941753
P 6.61
From 671 observations 2006 Aug. 2-2026 Oct. 8, mean residual 0".7.
Nongravitational parameters A1 = +0.04, A2 = +0.0041.

114P/Wiseman-Skiff
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Sept. 14.99966 TT Alexandersen
q 1.5706981 (2000.0) P Q
n 0.14808919 Peri. 172.85107 +0.10044452 -0.94409494
a 3.5382388 Node 271.02152 +0.89659113 +0.22270348
e 0.5560791 Incl. 18.30343 +0.43131803 -0.24308004
P 6.66
From 1948 observations 2006 July 21-2026 Oct. 8, mean residual 0".7.

139P/Vaisala-Oterma
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2027 July 23.32391 TT MPCORBFIT
q 3.3924789 (2000.0) P Q
n 0.10285725 Peri. 166.11384 +0.66591981 -0.74515117
a 4.5114151 Node 242.11967 +0.68050926 +0.62653923
e 0.2480233 Incl. 2.33824 +0.30570892 +0.22846955
P 9.58
From 660 observations 1939 Oct. 7-2026 Oct. 8, mean residual 0".7.

161P/Hartley-IRAS
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Nov. 27.17973 TT Alexandersen
q 1.2650873 (2000.0) P Q
n 0.04593527 Peri. 47.06675 +0.68282079 -0.73013747
a 7.7215623 Node 1.47410 -0.34142226 -0.34987569
e 0.8361617 Incl. 95.79083 +0.64589984 +0.58692953
P 21.5
From 991 observations 2004 Nov. 3-2026 Oct. 9, mean residual 0".7.
Nongravitational parameters A1 = +0.42, A2 = -0.2372.

220P/McNaught
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 June 14.12062 TT Alexandersen
q 1.5593054 (2000.0) P Q
n 0.17877633 Peri. 180.56345 +0.87157068 +0.48518169
a 3.1207768 Node 150.08397 -0.44925944 +0.84790900
e 0.5003470 Incl. 8.12075 -0.19629189 +0.21365641
P 5.51
From 2198 observations 2004 May 20-2026 Oct. 9, mean residual 0".9.

240P/NEAT
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2025 Dec. 19.94396 TT Alexandersen
q 2.1215194 (2000.0) P Q
n 0.12979104 Peri. 352.07702 +0.37996104 -0.84085650
a 3.8634288 Node 74.90449 +0.86906087 +0.18178451
e 0.4508714 Incl. 23.53134 +0.31680090 +0.50981834
P 7.59
From 2812 observations 2020 Mar. 23-2026 May 26, mean residual 0".5.
Nongravitational parameters A1 = -0.40, A2 = +0.4197.

245P/WISE
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Mar. 31.10432 TT Alexandersen
q 2.2056223 (2000.0) P Q
n 0.12071757 Peri. 316.69054 +0.09033207 +0.96457764
a 4.0546719 Node 316.66652 -0.78646301 -0.08359171
e 0.4560294 Incl. 21.17210 -0.61099595 +0.25020473
P 8.16
From 172 observations 2002 Aug. 27-2026 Oct. 5, mean residual 1".2.

247P/LINEAR
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Oct. 25.98198 TT Alexandersen
q 1.4834335 (2000.0) P Q
n 0.12498330 Peri. 47.53201 -0.18294071 -0.96438350
a 3.9618807 Node 53.99440 +0.81843139 -0.25705631
e 0.6255734 Incl. 13.65990 +0.54470428 +0.06234199
P 7.89
From 1369 observations 2002 Nov. 5-2026 Oct. 9, mean residual 0".6.

260P/McNaught
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Aug. 5.00891 TT Alexandersen
q 1.4179672 (2000.0) P Q
n 0.14290671 Peri. 18.51429 +0.98875729 -0.14151189
a 3.6232723 Node 349.27125 +0.08170712 +0.78187183
e 0.6086501 Incl. 15.03939 +0.12523164 +0.60716623
P 6.90
From 7568 observations 2005 May 20-2026 Oct. 8, mean residual 0".5.
Nongravitational parameters A1 = +0.01, A2 = -0.0019.

266P/Christensen
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Dec. 7.35344 TT Alexandersen
q 2.3242621 (2000.0) P Q
n 0.14883416 Peri. 97.80628 -0.22119547 -0.97521566
a 3.5264221 Node 4.98202 +0.86953405 -0.19963083
e 0.3409008 Incl. 3.42862 +0.44156890 -0.09540410
P 6.62
From 145 observations 2020 Jan. 1-2026 Oct. 8, mean residual 0".7.
Nongravitational parameters A1 = +2.95, A2 = +0.4482.

315P/LONEOS
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2027 Nov. 16.48523 TT Alexandersen
q 2.3565848 (2000.0) P Q
n 0.08994944 Peri. 66.00703 -0.66195561 -0.69377470
a 4.9332950 Node 68.61322 +0.52778251 -0.70019500
e 0.5223102 Incl. 17.73958 +0.53222212 -0.16853375
P 11.0
From 2385 observations 2004 Nov. 3-2026 Oct. 6, mean residual 0".7.

512P/PANSTARRS
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Dec. 3.89720 TT Alexandersen
q 4.8025596 (2000.0) P Q
n 0.07250327 Peri. 308.60143 +0.90697367 -0.36572364
a 5.6959257 Node 73.73710 +0.42117825 +0.79077935
e 0.1568430 Incl. 12.56937 -0.00276542 +0.49083014
P 13.6
From 122 observations 2011 Sept. 23-2026 Oct. 9, mean residual 0".6.