Коррекция орбиты некоторых периодических комет от 7 марта ..
Добавлено: 08 мар 2026 23:23Коррекция орбиты некоторых периодических комет от 7 марта 2026 года, MPEC 2026-E44
Orbital elements:
3I/ATLAS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Oct. 29.48251 TT Pike
q 1.3565064 (2000.0) P Q
z -3.7890531 Peri. 128.00557 -0.96791025 -0.24579991
+/-0.0000150 Node 322.15351 -0.24888340 +0.90889703
e 6.1398749 Incl. 175.11288 -0.03473892 +0.33688068
From 7883 observations 2025 May 8-2026 Mar. 6, mean residual 0".6.
10P/Tempel
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Aug. 2.13374 TT Pike
q 1.4176106 (2000.0) P Q
n 0.18373646 Peri. 195.48083 +0.68036916 +0.70931011
a 3.0643556 Node 117.79821 -0.64833162 +0.69981016
e 0.5373871 Incl. 12.02720 -0.34170736 +0.08452750
P 5.36
From 4721 observations 2003 Mar. 7-2026 Mar. 5, mean residual 0".6.
Nongravitational parameters A1 = +0.02, A2 = +0.0007.
24P/Schaumasse
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 8.34229 TT Pike
q 1.1839391 (2000.0) P Q
n 0.12054328 Peri. 58.48332 -0.71166449 -0.67484352
a 4.0585794 Node 78.27142 +0.55777600 -0.71174120
e 0.7082873 Incl. 11.50225 +0.42710606 -0.19496331
P 8.18
From 1821 observations 2017 July 24-2026 Mar. 6, mean residual 0".6.
Nongravitational parameters A1 = +0.09, A2 = -0.0024.
28P/Neujmin
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2021 Mar. 9.64397 TT Pike
q 1.5876881 (2000.0) P Q
n 0.05345536 Peri. 347.43360 +0.89925651 +0.43356594
a 6.9792462 Node 346.42066 -0.37692993 +0.70084405
e 0.7725130 Incl. 14.28932 -0.22194944 +0.56642580
P 18.4
From 985 observations 2017 Mar. 19-2026 Feb. 25, mean residual 0".3.
29P/Schwassmann-Wachmann
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2019 Apr. 28.26103 TT Pike
q 5.7968196 (2000.0) P Q
n 0.06610739 Peri. 51.90642 +0.98944478 -0.08118053
a 6.0576294 Node 312.40176 +0.01155785 +0.86992057
e 0.0430548 Incl. 9.35525 +0.14444879 +0.48646472
P 14.9
From 18332 observations 2020 Jan. 1-2026 Mar. 7, mean residual 0".6.
Nongravitational parameters A1 = -1.38, A2 = +0.9190.
40P/Vaisala
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Nov. 12.01667 TT Pike
q 1.8237832 (2000.0) P Q
n 0.08967050 Peri. 52.05734 -0.98723762 +0.02656095
a 4.9435205 Node 128.90065 -0.06928917 -0.95941682
e 0.6310760 Incl. 11.64040 +0.14339068 -0.28073809
P 11.0
From 253 observations 2024 Nov. 29-2026 Mar. 6, mean residual 0".7.
43P/Wolf-Harrington
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Aug. 4.57757 TT Pike
q 2.4427261 (2000.0) P Q
n 0.10939537 Peri. 223.78616 -0.29690450 -0.94372807
a 4.3298224 Node 243.97987 +0.91466699 -0.23724031
e 0.4358369 Incl. 9.33001 +0.27428454 -0.23042215
P 9.01
From 1586 observations 2023 Sept. 11-2026 Mar. 7, mean residual 0".6.
Nongravitational parameters A1 = -1.04, A2 = -0.3068.
48P/Johnson
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Mar. 2.66352 TT Pike
q 2.0067904 (2000.0) P Q
n 0.15056927 Peri. 216.78828 +0.82455165 +0.52981240
a 3.4992783 Node 110.06354 -0.45559568 +0.82980530
e 0.4265131 Incl. 12.20175 -0.33548050 +0.17527688
P 6.55
From 1551 observations 2018 Feb. 16-2026 Feb. 15, mean residual 0".7.
Nongravitational parameters A1 = +0.45, A2 = +0.0552.
49P/Arend-Rigaux
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Apr. 10.59757 TT Pike
q 1.4313718 (2000.0) P Q
n 0.14617701 Peri. 332.92567 -0.05182083 -0.95677158
a 3.5690283 Node 118.79079 +0.96516641 -0.12157365
e 0.5989464 Incl. 19.05974 +0.25645352 +0.26421202
P 6.74
From 4398 observations 2004 June 24-2026 Mar. 2, mean residual 0".6.
Nongravitational parameters A1 = -0.02, A2 = -0.0008.
53P/Van Biesbroeck
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2028 Dec. 25.55646 TT Pike
q 2.4486282 (2000.0) P Q
n 0.07767197 Peri. 134.32404 +0.23036662 +0.97128397
a 5.4403457 Node 148.85010 -0.92233423 +0.23742699
e 0.5499131 Incl. 6.60359 -0.31021087 +0.01535847
P 12.7
From 2938 observations 2001 Feb. 20-2026 Feb. 14, mean residual 0".6.
Nongravitational parameters A1 = -0.27, A2 = +0.0162.
63P/Wild
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 July 6.16659 TT Pike
q 1.9745655 (2000.0) P Q
n 0.07325195 Peri. 168.73559 -0.97281448 -0.23121545
a 5.6570490 Node 357.76501 +0.17769401 -0.70898474
e 0.6509549 Incl. 19.61605 +0.14851542 -0.66624323
P 13.5
From 2241 observations 1960 Apr. 16-2026 Mar. 6, mean residual 0".6.
Nongravitational parameters A1 = +0.17, A2 = -0.1100.
74P/Smirnova-Chernykh
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Apr. 5.63804 TT Pike
q 4.8358891 (2000.0) P Q
n 0.08523299 Peri. 59.70189 -0.36157442 -0.92870695
a 5.1136486 Node 51.72453 +0.81538159 -0.35776929
e 0.0543173 Incl. 6.01502 +0.45212477 -0.09749121
P 11.6
From 1913 observations 2018 Jan. 1-2026 Feb. 19, mean residual 0".5.
Nongravitational parameters A1 = -2.00, A2 = -0.4346.
88P/Howell
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Mar. 18.77311 TT Pike
q 1.3577644 (2000.0) P Q
n 0.17980703 Peri. 235.87134 +0.38131972 +0.92223644
a 3.1088393 Node 56.66947 -0.82101473 +0.36958728
e 0.5632568 Incl. 4.38195 -0.42488832 +0.11351298
P 5.48
From 2815 observations 2015 July 7-2026 Mar. 3, mean residual 0".8.
Nongravitational parameters A1 = +0.78, A2 = +0.0095.
93P/Lovas
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 May 2.93862 TT Pike
q 1.6884374 (2000.0) P Q
n 0.10778603 Peri. 75.03846 +0.57181950 -0.81704428
a 4.3728146 Node 339.54926 +0.64768432 +0.50489950
e 0.6138786 Incl. 12.21040 +0.50351512 +0.27841540
P 9.14
From 3542 observations 1980 Dec. 5-2026 Feb. 13, mean residual 0".5.
Nongravitational parameters A1 = +0.03, A2 = -0.0049.
123P/West-Hartley
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Sept. 22.09312 TT Pike
q 2.1580258 (2000.0) P Q
n 0.12867537 Peri. 103.92924 -0.83970372 -0.50899370
a 3.8857284 Node 45.88008 +0.33765880 -0.76234607
e 0.4446277 Incl. 15.28672 +0.42530483 -0.39969224
P 7.66
From 3486 observations 2010 Sept. 12-2026 Mar. 6, mean residual 0".7.
Nongravitational parameters A1 = -0.50, A2 = +0.0055.
124P/Mrkos
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 June 23.58797 TT Pike
q 1.7348981 (2000.0) P Q
n 0.15875365 Peri. 185.10920 -0.99608040 +0.08845171
a 3.3779528 Node 359.95939 -0.05063364 -0.57361349
e 0.4864055 Incl. 31.40197 -0.07252638 -0.81433645
P 6.21
From 1099 observations 2020 Jan. 1-2026 Mar. 7, mean residual 0".4.
Nongravitational parameters A1 = -0.05, A2 = -0.0069.
136P/Mueller
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Jan. 3.72658 TT Pike
q 2.9590612 (2000.0) P Q
n 0.11503039 Peri. 225.38740 +0.99230014 -0.05525591
a 4.1872380 Node 137.41185 +0.08469483 +0.95573958
e 0.2933143 Incl. 9.42756 -0.09037262 +0.28897861
P 8.57
From 525 observations 2016 Aug. 5-2026 Feb. 4, mean residual 0".7.
Nongravitational parameters A1 = -0.31, A2 = +0.0418.
143P/Kowal-Mrkos
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Dec. 27.48891 TT Pike
q 2.9564194 (2000.0) P Q
n 0.09482644 Peri. 304.64400 -0.98972720 +0.11622699
a 4.7626620 Node 242.15924 -0.07943917 -0.93123037
e 0.3792506 Incl. 5.40257 -0.11886749 -0.34540017
P 10.4
From 423 observations 2020 July 28-2026 Mar. 3, mean residual 0".3.
145P/Shoemaker-Levy
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 31.93177 TT Pike
q 1.8897183 (2000.0) P Q
n 0.11745797 Peri. 10.41841 +0.79825874 -0.59583989
a 4.1293438 Node 26.76679 +0.53759146 +0.63887497
e 0.5423684 Incl. 11.27822 +0.27162182 +0.48663496
P 8.39
From 1300 observations 1991 Sept. 12-2026 Mar. 7, mean residual 0".6.
Nongravitational parameters A1 = +0.18, A2 = -0.0181.
164P/Christensen
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 May 27.37924 TT Pike
q 1.6748692 (2000.0) P Q
n 0.14119580 Peri. 325.93200 +0.56252023 -0.77787578
a 3.6524829 Node 88.26774 +0.80720831 +0.44341912
e 0.5414437 Incl. 16.27640 +0.17884556 +0.44529625
P 6.98
From 1513 observations 2010 Oct. 7-2026 Mar. 6, mean residual 1".2.
171P/Spahr
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Sept. 25.01848 TT Pike
q 1.7664011 (2000.0) P Q
n 0.14713617 Peri. 347.06779 +0.00571907 -0.93055007
a 3.5535007 Node 101.69379 +0.94753303 -0.11197541
e 0.5029124 Incl. 21.95510 +0.31960670 +0.34862311
P 6.70
From 666 observations 2005 Sept. 1-2026 Mar. 6, mean residual 0".6.
Nongravitational parameters A1 = +1.00, A2 = -0.1833.
175P/Hergenrother
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Sept. 3.07214 TT Pike
q 2.3067645 (2000.0) P Q
n 0.13894181 Peri. 74.58100 -0.99372961 +0.07723154
a 3.6918786 Node 109.79528 -0.10185163 -0.92358918
e 0.3751787 Incl. 4.92937 +0.04612699 -0.37552406
P 7.09
From 910 observations 2000 Jan. 4-2026 Feb. 19, mean residual 0".7.
Nongravitational parameters A1 = +0.07, A2 = +0.0205.
190P/Mueller
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2024 Dec. 24.13263 TT Pike
q 2.0179041 (2000.0) P Q
n 0.11324217 Peri. 50.54062 +0.89882834 -0.43801615
a 4.2312038 Node 335.42460 +0.38956882 +0.81488813
e 0.5230898 Incl. 2.17648 +0.20085752 +0.37960398
P 8.70
From 715 observations 1998 Sept. 14-2026 Feb. 14, mean residual 0".6.
195P/Hill
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Aug. 6.00102 TT Pike
q 4.4406027 (2000.0) P Q
n 0.06029776 Peri. 250.65396 -0.52714681 -0.66475940
a 6.4407326 Node 243.08973 +0.80912135 -0.58301393
e 0.3105438 Incl. 36.41504 -0.25968998 -0.46710780
P 16.3
From 1131 observations 1993 Feb. 26-2026 Mar. 6, mean residual 0".6.
210P/Christensen
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Nov. 22.72672 TT Pike
q 0.5244206 (2000.0) P Q
n 0.17541790 Peri. 345.94933 +0.17411697 -0.96846840
a 3.1604828 Node 93.79673 +0.91983759 +0.09535830
e 0.8340695 Incl. 10.28726 +0.35154246 +0.23016462
P 5.62
From 911 observations 2008 Dec. 8-2026 Mar. 5, mean residual 0".8.
Nongravitational parameters A1 = +0.04, A2 = +0.0044.
217P/LINEAR
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 May 24.96354 TT Pike
q 1.2263044 (2000.0) P Q
n 0.12570631 Peri. 247.04365 +0.95777411 -0.22292285
a 3.9466746 Node 125.36817 +0.26648556 +0.92538606
e 0.6892816 Incl. 12.86675 -0.10795465 +0.30653883
P 7.84
From 3664 observations 2001 June 21-2026 Mar. 7, mean residual 0".7.
Nongravitational parameters A1 = +0.18, A2 = +0.0032.
218P/LINEAR
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Mar. 4.30839 TT Pike
q 1.1294351 (2000.0) P Q
n 0.18414163 Peri. 61.41162 -0.55726580 +0.83032261
a 3.0598588 Node 174.71514 -0.77746782 -0.51992527
e 0.6308865 Incl. 2.72667 -0.29154521 -0.20060431
P 5.35
From 597 observations 2003 Apr. 29-2026 Feb. 24, mean residual 1".1.
Nongravitational parameters A1 = -0.10, A2 = +0.0583.
233P/La Sagra
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 8.10894 TT Pike
q 1.7767553 (2000.0) P Q
n 0.18709947 Peri. 26.98898 -0.19787710 -0.96182642
a 3.0275245 Node 74.91996 +0.86029700 -0.26283970
e 0.4131326 Incl. 11.29017 +0.46982309 +0.07619205
P 5.27
From 182 observations 2005 Feb. 9-2026 Feb. 4, mean residual 0".6.
235P/LINEAR
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 22.67390 TT Pike
q 1.9778906 (2000.0) P Q
n 0.15410829 Peri. 352.19686 -0.97611024 +0.20917711
a 3.4454984 Node 200.17030 -0.18900831 -0.95087598
e 0.4259494 Incl. 9.81319 -0.10716646 -0.22821003
P 6.40
From 393 observations 2024 Nov. 21-2026 Mar. 6, mean residual 0".6.
240P/NEAT
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 19.94974 TT Pike
q 2.1216491 (2000.0) P Q
n 0.12991579 Peri. 352.07753 +0.37983310 -0.84087016
a 3.8609552 Node 74.91165 +0.86911204 +0.18163743
e 0.4504860 Incl. 23.53673 +0.31681396 +0.50984823
P 7.59
From 2337 observations 2020 Mar. 23-2026 Mar. 7, mean residual 0".5.
Nongravitational parameters A1 = -0.26, A2 = +0.4656.
240P/NEAT B
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 19.99928 TT Pike
q 2.1216297 (2000.0) P Q
n 0.12994714 Peri. 352.07756 +0.37982293 -0.84088708
a 3.8603342 Node 74.91236 +0.86911443 +0.18164193
e 0.4504026 Incl. 23.53491 +0.31681960 +0.50981873
P 7.58
From 381 observations 2025 Dec. 1-2026 Feb. 25, mean residual 1".1.
242P/Spahr
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2024 Dec. 23.54509 TT Pike
q 3.9719296 (2000.0) P Q
n 0.07562022 Peri. 245.05361 +0.41925544 -0.90786661
a 5.5383120 Node 180.18809 +0.89683360 +0.41385740
e 0.2828267 Incl. 32.42828 -0.14111827 -0.06708407
P 13.0
From 1287 observations 2011 July 20-2026 Mar. 7, mean residual 0".7.
248P/Gibbs
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Sept. 14.94510 TT Pike
q 2.1577379 (2000.0) P Q
n 0.06727951 Peri. 209.99909 +0.53444911 -0.84362539
a 5.9870677 Node 207.79129 +0.79579540 +0.52282903
e 0.6396002 Incl. 6.35127 +0.28473465 +0.12225383
P 14.6
From 319 observations 1996 Sept. 14-2026 Feb. 6, mean residual 0".7.
250P/Larson
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 May 16.70586 TT Pike
q 2.2723500 (2000.0) P Q
n 0.13434442 Peri. 45.70291 -0.46687442 -0.85704859
a 3.7756318 Node 73.30011 +0.73269638 -0.51288432
e 0.3981537 Incl. 13.15184 +0.49516088 -0.04916701
P 7.34
From 545 observations 1995 Dec. 22-2026 Feb. 26, mean residual 0".6.
254P/McNaught
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2030 Sept. 3.44112 TT Pike
q 3.1498518 (2000.0) P Q
n 0.09923238 Peri. 219.70127 +0.90349544 +0.09930353
a 4.6206221 Node 129.17585 -0.09844098 +0.99486229
e 0.3183057 Incl. 32.53634 -0.41713949 -0.01969350
P 9.93
From 732 observations 2020 July 18-2026 Feb. 24, mean residual 0".5.
261P/Larson
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 27.41296 TT Pike
q 2.0141976 (2000.0) P Q
n 0.15124304 Peri. 67.36658 +0.99478347 +0.02560953
a 3.4888780 Node 291.05040 -0.06589781 +0.90022398
e 0.4226804 Incl. 6.07342 +0.07786732 +0.43467338
P 6.52
From 1265 observations 2005 July 3-2026 Feb. 13, mean residual 0".8.
Nongravitational parameters A1 = +0.39, A2 = +0.0853.
276P/Vorobjov
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2024 Dec. 11.96675 TT Pike
q 3.8985094 (2000.0) P Q
n 0.07893171 Peri. 199.65509 +0.63883454 -0.75805720
a 5.3823059 Node 211.06411 +0.73552325 +0.65183622
e 0.2756804 Incl. 14.74154 +0.22560136 +0.02142021
P 12.5
From 1248 observations 2000 Dec. 19-2026 Feb. 19, mean residual 0".6.
379P/Spacewatch
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Feb. 22.89427 TT Pike
q 2.2647177 (2000.0) P Q
n 0.15156486 Peri. 31.61019 -0.81870558 +0.57406234
a 3.4839376 Node 183.50936 -0.56143876 -0.80509382
e 0.3499546 Incl. 12.42999 -0.12044785 -0.14925269
P 6.50
From 100 observations 2006 Mar. 26-2026 Feb. 13, mean residual 0".9.
404P/Bressi
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2023 Oct. 30.52271 TT Pike
q 4.1322849 (2000.0) P Q
n 0.09622197 Peri. 168.86083 +0.35726749 -0.91882230
a 4.7165004 Node 260.03614 +0.84331329 +0.39451680
e 0.1238663 Incl. 9.80380 +0.40147558 -0.01104906
P 10.2
From 550 observations 2020 Nov. 8-2026 Feb. 17, mean residual 0".6.
450P/LONEOS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2027 Feb. 20.87175 TT Pike
q 5.4135611 (2000.0) P Q
n 0.04457669 Peri. 25.65121 -0.85614070 -0.49259556
a 7.8776650 Node 123.95379 +0.43576354 -0.85061325
e 0.3127962 Incl. 10.84832 +0.27772873 -0.18386600
P 22.1
From 873 observations 2003 Oct. 25-2026 Mar. 6, mean residual 0".7.
472P/NEAT-LINEAR
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2024 July 13.70930 TT Pike
q 3.3864241 (2000.0) P Q
n 0.04554933 Peri. 218.80601 +0.43352689 -0.89742197
a 7.7651179 Node 205.81078 +0.86651917 +0.44006467
e 0.5638928 Incl. 10.82623 +0.24738425 +0.03125537
P 21.6
From 1354 observations 2002 Sept. 15-2026 Feb. 19, mean residual 0".7.
493P/LONEOS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 14.10406 TT Pike
q 3.8229414 (2000.0) P Q
n 0.05128672 Peri. 83.22390 +0.10075159 -0.99488136
a 7.1746284 Node 1.08839 +0.67216935 +0.06231698
e 0.4671583 Incl. 24.10827 +0.73351038 +0.07954668
P 19.2
From 1200 observations 2005 Sept. 23-2026 Mar. 7, mean residual 0".6.
509P/Catalina
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Mar. 19.81749 TT Pike
q 3.6928839 (2000.0) P Q
n 0.05278090 Peri. 180.09960 -0.09249755 -0.98450330
a 7.0385764 Node 275.20882 +0.91365216 -0.02443557
e 0.4753365 Incl. 8.60409 +0.39583322 -0.17365529
P 18.7
From 569 observations 2006 Oct. 19-2026 Mar. 2, mean residual 0".7.
514P/Lemmon-PANSTARRS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Nov. 23.94491 TT Pike
q 2.9110693 (2000.0) P Q
n 0.10165033 Peri. 89.43650 +0.62474164 -0.77765512
a 4.5470547 Node 321.60630 +0.66375804 +0.57636872
e 0.3597901 Incl. 6.50491 +0.41124585 +0.25110080
P 9.70
From 173 observations 2006 Nov. 21-2026 Feb. 5, mean residual 0".5.
Orbital elements:
3I/ATLAS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Oct. 29.48251 TT Pike
q 1.3565064 (2000.0) P Q
z -3.7890531 Peri. 128.00557 -0.96791025 -0.24579991
+/-0.0000150 Node 322.15351 -0.24888340 +0.90889703
e 6.1398749 Incl. 175.11288 -0.03473892 +0.33688068
From 7883 observations 2025 May 8-2026 Mar. 6, mean residual 0".6.
10P/Tempel
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Aug. 2.13374 TT Pike
q 1.4176106 (2000.0) P Q
n 0.18373646 Peri. 195.48083 +0.68036916 +0.70931011
a 3.0643556 Node 117.79821 -0.64833162 +0.69981016
e 0.5373871 Incl. 12.02720 -0.34170736 +0.08452750
P 5.36
From 4721 observations 2003 Mar. 7-2026 Mar. 5, mean residual 0".6.
Nongravitational parameters A1 = +0.02, A2 = +0.0007.
24P/Schaumasse
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 8.34229 TT Pike
q 1.1839391 (2000.0) P Q
n 0.12054328 Peri. 58.48332 -0.71166449 -0.67484352
a 4.0585794 Node 78.27142 +0.55777600 -0.71174120
e 0.7082873 Incl. 11.50225 +0.42710606 -0.19496331
P 8.18
From 1821 observations 2017 July 24-2026 Mar. 6, mean residual 0".6.
Nongravitational parameters A1 = +0.09, A2 = -0.0024.
28P/Neujmin
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2021 Mar. 9.64397 TT Pike
q 1.5876881 (2000.0) P Q
n 0.05345536 Peri. 347.43360 +0.89925651 +0.43356594
a 6.9792462 Node 346.42066 -0.37692993 +0.70084405
e 0.7725130 Incl. 14.28932 -0.22194944 +0.56642580
P 18.4
From 985 observations 2017 Mar. 19-2026 Feb. 25, mean residual 0".3.
29P/Schwassmann-Wachmann
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2019 Apr. 28.26103 TT Pike
q 5.7968196 (2000.0) P Q
n 0.06610739 Peri. 51.90642 +0.98944478 -0.08118053
a 6.0576294 Node 312.40176 +0.01155785 +0.86992057
e 0.0430548 Incl. 9.35525 +0.14444879 +0.48646472
P 14.9
From 18332 observations 2020 Jan. 1-2026 Mar. 7, mean residual 0".6.
Nongravitational parameters A1 = -1.38, A2 = +0.9190.
40P/Vaisala
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Nov. 12.01667 TT Pike
q 1.8237832 (2000.0) P Q
n 0.08967050 Peri. 52.05734 -0.98723762 +0.02656095
a 4.9435205 Node 128.90065 -0.06928917 -0.95941682
e 0.6310760 Incl. 11.64040 +0.14339068 -0.28073809
P 11.0
From 253 observations 2024 Nov. 29-2026 Mar. 6, mean residual 0".7.
43P/Wolf-Harrington
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Aug. 4.57757 TT Pike
q 2.4427261 (2000.0) P Q
n 0.10939537 Peri. 223.78616 -0.29690450 -0.94372807
a 4.3298224 Node 243.97987 +0.91466699 -0.23724031
e 0.4358369 Incl. 9.33001 +0.27428454 -0.23042215
P 9.01
From 1586 observations 2023 Sept. 11-2026 Mar. 7, mean residual 0".6.
Nongravitational parameters A1 = -1.04, A2 = -0.3068.
48P/Johnson
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Mar. 2.66352 TT Pike
q 2.0067904 (2000.0) P Q
n 0.15056927 Peri. 216.78828 +0.82455165 +0.52981240
a 3.4992783 Node 110.06354 -0.45559568 +0.82980530
e 0.4265131 Incl. 12.20175 -0.33548050 +0.17527688
P 6.55
From 1551 observations 2018 Feb. 16-2026 Feb. 15, mean residual 0".7.
Nongravitational parameters A1 = +0.45, A2 = +0.0552.
49P/Arend-Rigaux
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Apr. 10.59757 TT Pike
q 1.4313718 (2000.0) P Q
n 0.14617701 Peri. 332.92567 -0.05182083 -0.95677158
a 3.5690283 Node 118.79079 +0.96516641 -0.12157365
e 0.5989464 Incl. 19.05974 +0.25645352 +0.26421202
P 6.74
From 4398 observations 2004 June 24-2026 Mar. 2, mean residual 0".6.
Nongravitational parameters A1 = -0.02, A2 = -0.0008.
53P/Van Biesbroeck
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2028 Dec. 25.55646 TT Pike
q 2.4486282 (2000.0) P Q
n 0.07767197 Peri. 134.32404 +0.23036662 +0.97128397
a 5.4403457 Node 148.85010 -0.92233423 +0.23742699
e 0.5499131 Incl. 6.60359 -0.31021087 +0.01535847
P 12.7
From 2938 observations 2001 Feb. 20-2026 Feb. 14, mean residual 0".6.
Nongravitational parameters A1 = -0.27, A2 = +0.0162.
63P/Wild
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 July 6.16659 TT Pike
q 1.9745655 (2000.0) P Q
n 0.07325195 Peri. 168.73559 -0.97281448 -0.23121545
a 5.6570490 Node 357.76501 +0.17769401 -0.70898474
e 0.6509549 Incl. 19.61605 +0.14851542 -0.66624323
P 13.5
From 2241 observations 1960 Apr. 16-2026 Mar. 6, mean residual 0".6.
Nongravitational parameters A1 = +0.17, A2 = -0.1100.
74P/Smirnova-Chernykh
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Apr. 5.63804 TT Pike
q 4.8358891 (2000.0) P Q
n 0.08523299 Peri. 59.70189 -0.36157442 -0.92870695
a 5.1136486 Node 51.72453 +0.81538159 -0.35776929
e 0.0543173 Incl. 6.01502 +0.45212477 -0.09749121
P 11.6
From 1913 observations 2018 Jan. 1-2026 Feb. 19, mean residual 0".5.
Nongravitational parameters A1 = -2.00, A2 = -0.4346.
88P/Howell
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Mar. 18.77311 TT Pike
q 1.3577644 (2000.0) P Q
n 0.17980703 Peri. 235.87134 +0.38131972 +0.92223644
a 3.1088393 Node 56.66947 -0.82101473 +0.36958728
e 0.5632568 Incl. 4.38195 -0.42488832 +0.11351298
P 5.48
From 2815 observations 2015 July 7-2026 Mar. 3, mean residual 0".8.
Nongravitational parameters A1 = +0.78, A2 = +0.0095.
93P/Lovas
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 May 2.93862 TT Pike
q 1.6884374 (2000.0) P Q
n 0.10778603 Peri. 75.03846 +0.57181950 -0.81704428
a 4.3728146 Node 339.54926 +0.64768432 +0.50489950
e 0.6138786 Incl. 12.21040 +0.50351512 +0.27841540
P 9.14
From 3542 observations 1980 Dec. 5-2026 Feb. 13, mean residual 0".5.
Nongravitational parameters A1 = +0.03, A2 = -0.0049.
123P/West-Hartley
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Sept. 22.09312 TT Pike
q 2.1580258 (2000.0) P Q
n 0.12867537 Peri. 103.92924 -0.83970372 -0.50899370
a 3.8857284 Node 45.88008 +0.33765880 -0.76234607
e 0.4446277 Incl. 15.28672 +0.42530483 -0.39969224
P 7.66
From 3486 observations 2010 Sept. 12-2026 Mar. 6, mean residual 0".7.
Nongravitational parameters A1 = -0.50, A2 = +0.0055.
124P/Mrkos
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 June 23.58797 TT Pike
q 1.7348981 (2000.0) P Q
n 0.15875365 Peri. 185.10920 -0.99608040 +0.08845171
a 3.3779528 Node 359.95939 -0.05063364 -0.57361349
e 0.4864055 Incl. 31.40197 -0.07252638 -0.81433645
P 6.21
From 1099 observations 2020 Jan. 1-2026 Mar. 7, mean residual 0".4.
Nongravitational parameters A1 = -0.05, A2 = -0.0069.
136P/Mueller
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Jan. 3.72658 TT Pike
q 2.9590612 (2000.0) P Q
n 0.11503039 Peri. 225.38740 +0.99230014 -0.05525591
a 4.1872380 Node 137.41185 +0.08469483 +0.95573958
e 0.2933143 Incl. 9.42756 -0.09037262 +0.28897861
P 8.57
From 525 observations 2016 Aug. 5-2026 Feb. 4, mean residual 0".7.
Nongravitational parameters A1 = -0.31, A2 = +0.0418.
143P/Kowal-Mrkos
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Dec. 27.48891 TT Pike
q 2.9564194 (2000.0) P Q
n 0.09482644 Peri. 304.64400 -0.98972720 +0.11622699
a 4.7626620 Node 242.15924 -0.07943917 -0.93123037
e 0.3792506 Incl. 5.40257 -0.11886749 -0.34540017
P 10.4
From 423 observations 2020 July 28-2026 Mar. 3, mean residual 0".3.
145P/Shoemaker-Levy
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 31.93177 TT Pike
q 1.8897183 (2000.0) P Q
n 0.11745797 Peri. 10.41841 +0.79825874 -0.59583989
a 4.1293438 Node 26.76679 +0.53759146 +0.63887497
e 0.5423684 Incl. 11.27822 +0.27162182 +0.48663496
P 8.39
From 1300 observations 1991 Sept. 12-2026 Mar. 7, mean residual 0".6.
Nongravitational parameters A1 = +0.18, A2 = -0.0181.
164P/Christensen
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 May 27.37924 TT Pike
q 1.6748692 (2000.0) P Q
n 0.14119580 Peri. 325.93200 +0.56252023 -0.77787578
a 3.6524829 Node 88.26774 +0.80720831 +0.44341912
e 0.5414437 Incl. 16.27640 +0.17884556 +0.44529625
P 6.98
From 1513 observations 2010 Oct. 7-2026 Mar. 6, mean residual 1".2.
171P/Spahr
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Sept. 25.01848 TT Pike
q 1.7664011 (2000.0) P Q
n 0.14713617 Peri. 347.06779 +0.00571907 -0.93055007
a 3.5535007 Node 101.69379 +0.94753303 -0.11197541
e 0.5029124 Incl. 21.95510 +0.31960670 +0.34862311
P 6.70
From 666 observations 2005 Sept. 1-2026 Mar. 6, mean residual 0".6.
Nongravitational parameters A1 = +1.00, A2 = -0.1833.
175P/Hergenrother
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Sept. 3.07214 TT Pike
q 2.3067645 (2000.0) P Q
n 0.13894181 Peri. 74.58100 -0.99372961 +0.07723154
a 3.6918786 Node 109.79528 -0.10185163 -0.92358918
e 0.3751787 Incl. 4.92937 +0.04612699 -0.37552406
P 7.09
From 910 observations 2000 Jan. 4-2026 Feb. 19, mean residual 0".7.
Nongravitational parameters A1 = +0.07, A2 = +0.0205.
190P/Mueller
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2024 Dec. 24.13263 TT Pike
q 2.0179041 (2000.0) P Q
n 0.11324217 Peri. 50.54062 +0.89882834 -0.43801615
a 4.2312038 Node 335.42460 +0.38956882 +0.81488813
e 0.5230898 Incl. 2.17648 +0.20085752 +0.37960398
P 8.70
From 715 observations 1998 Sept. 14-2026 Feb. 14, mean residual 0".6.
195P/Hill
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Aug. 6.00102 TT Pike
q 4.4406027 (2000.0) P Q
n 0.06029776 Peri. 250.65396 -0.52714681 -0.66475940
a 6.4407326 Node 243.08973 +0.80912135 -0.58301393
e 0.3105438 Incl. 36.41504 -0.25968998 -0.46710780
P 16.3
From 1131 observations 1993 Feb. 26-2026 Mar. 6, mean residual 0".6.
210P/Christensen
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Nov. 22.72672 TT Pike
q 0.5244206 (2000.0) P Q
n 0.17541790 Peri. 345.94933 +0.17411697 -0.96846840
a 3.1604828 Node 93.79673 +0.91983759 +0.09535830
e 0.8340695 Incl. 10.28726 +0.35154246 +0.23016462
P 5.62
From 911 observations 2008 Dec. 8-2026 Mar. 5, mean residual 0".8.
Nongravitational parameters A1 = +0.04, A2 = +0.0044.
217P/LINEAR
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 May 24.96354 TT Pike
q 1.2263044 (2000.0) P Q
n 0.12570631 Peri. 247.04365 +0.95777411 -0.22292285
a 3.9466746 Node 125.36817 +0.26648556 +0.92538606
e 0.6892816 Incl. 12.86675 -0.10795465 +0.30653883
P 7.84
From 3664 observations 2001 June 21-2026 Mar. 7, mean residual 0".7.
Nongravitational parameters A1 = +0.18, A2 = +0.0032.
218P/LINEAR
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Mar. 4.30839 TT Pike
q 1.1294351 (2000.0) P Q
n 0.18414163 Peri. 61.41162 -0.55726580 +0.83032261
a 3.0598588 Node 174.71514 -0.77746782 -0.51992527
e 0.6308865 Incl. 2.72667 -0.29154521 -0.20060431
P 5.35
From 597 observations 2003 Apr. 29-2026 Feb. 24, mean residual 1".1.
Nongravitational parameters A1 = -0.10, A2 = +0.0583.
233P/La Sagra
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 8.10894 TT Pike
q 1.7767553 (2000.0) P Q
n 0.18709947 Peri. 26.98898 -0.19787710 -0.96182642
a 3.0275245 Node 74.91996 +0.86029700 -0.26283970
e 0.4131326 Incl. 11.29017 +0.46982309 +0.07619205
P 5.27
From 182 observations 2005 Feb. 9-2026 Feb. 4, mean residual 0".6.
235P/LINEAR
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 22.67390 TT Pike
q 1.9778906 (2000.0) P Q
n 0.15410829 Peri. 352.19686 -0.97611024 +0.20917711
a 3.4454984 Node 200.17030 -0.18900831 -0.95087598
e 0.4259494 Incl. 9.81319 -0.10716646 -0.22821003
P 6.40
From 393 observations 2024 Nov. 21-2026 Mar. 6, mean residual 0".6.
240P/NEAT
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 19.94974 TT Pike
q 2.1216491 (2000.0) P Q
n 0.12991579 Peri. 352.07753 +0.37983310 -0.84087016
a 3.8609552 Node 74.91165 +0.86911204 +0.18163743
e 0.4504860 Incl. 23.53673 +0.31681396 +0.50984823
P 7.59
From 2337 observations 2020 Mar. 23-2026 Mar. 7, mean residual 0".5.
Nongravitational parameters A1 = -0.26, A2 = +0.4656.
240P/NEAT B
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 19.99928 TT Pike
q 2.1216297 (2000.0) P Q
n 0.12994714 Peri. 352.07756 +0.37982293 -0.84088708
a 3.8603342 Node 74.91236 +0.86911443 +0.18164193
e 0.4504026 Incl. 23.53491 +0.31681960 +0.50981873
P 7.58
From 381 observations 2025 Dec. 1-2026 Feb. 25, mean residual 1".1.
242P/Spahr
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2024 Dec. 23.54509 TT Pike
q 3.9719296 (2000.0) P Q
n 0.07562022 Peri. 245.05361 +0.41925544 -0.90786661
a 5.5383120 Node 180.18809 +0.89683360 +0.41385740
e 0.2828267 Incl. 32.42828 -0.14111827 -0.06708407
P 13.0
From 1287 observations 2011 July 20-2026 Mar. 7, mean residual 0".7.
248P/Gibbs
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Sept. 14.94510 TT Pike
q 2.1577379 (2000.0) P Q
n 0.06727951 Peri. 209.99909 +0.53444911 -0.84362539
a 5.9870677 Node 207.79129 +0.79579540 +0.52282903
e 0.6396002 Incl. 6.35127 +0.28473465 +0.12225383
P 14.6
From 319 observations 1996 Sept. 14-2026 Feb. 6, mean residual 0".7.
250P/Larson
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 May 16.70586 TT Pike
q 2.2723500 (2000.0) P Q
n 0.13434442 Peri. 45.70291 -0.46687442 -0.85704859
a 3.7756318 Node 73.30011 +0.73269638 -0.51288432
e 0.3981537 Incl. 13.15184 +0.49516088 -0.04916701
P 7.34
From 545 observations 1995 Dec. 22-2026 Feb. 26, mean residual 0".6.
254P/McNaught
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2030 Sept. 3.44112 TT Pike
q 3.1498518 (2000.0) P Q
n 0.09923238 Peri. 219.70127 +0.90349544 +0.09930353
a 4.6206221 Node 129.17585 -0.09844098 +0.99486229
e 0.3183057 Incl. 32.53634 -0.41713949 -0.01969350
P 9.93
From 732 observations 2020 July 18-2026 Feb. 24, mean residual 0".5.
261P/Larson
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 27.41296 TT Pike
q 2.0141976 (2000.0) P Q
n 0.15124304 Peri. 67.36658 +0.99478347 +0.02560953
a 3.4888780 Node 291.05040 -0.06589781 +0.90022398
e 0.4226804 Incl. 6.07342 +0.07786732 +0.43467338
P 6.52
From 1265 observations 2005 July 3-2026 Feb. 13, mean residual 0".8.
Nongravitational parameters A1 = +0.39, A2 = +0.0853.
276P/Vorobjov
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2024 Dec. 11.96675 TT Pike
q 3.8985094 (2000.0) P Q
n 0.07893171 Peri. 199.65509 +0.63883454 -0.75805720
a 5.3823059 Node 211.06411 +0.73552325 +0.65183622
e 0.2756804 Incl. 14.74154 +0.22560136 +0.02142021
P 12.5
From 1248 observations 2000 Dec. 19-2026 Feb. 19, mean residual 0".6.
379P/Spacewatch
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Feb. 22.89427 TT Pike
q 2.2647177 (2000.0) P Q
n 0.15156486 Peri. 31.61019 -0.81870558 +0.57406234
a 3.4839376 Node 183.50936 -0.56143876 -0.80509382
e 0.3499546 Incl. 12.42999 -0.12044785 -0.14925269
P 6.50
From 100 observations 2006 Mar. 26-2026 Feb. 13, mean residual 0".9.
404P/Bressi
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2023 Oct. 30.52271 TT Pike
q 4.1322849 (2000.0) P Q
n 0.09622197 Peri. 168.86083 +0.35726749 -0.91882230
a 4.7165004 Node 260.03614 +0.84331329 +0.39451680
e 0.1238663 Incl. 9.80380 +0.40147558 -0.01104906
P 10.2
From 550 observations 2020 Nov. 8-2026 Feb. 17, mean residual 0".6.
450P/LONEOS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2027 Feb. 20.87175 TT Pike
q 5.4135611 (2000.0) P Q
n 0.04457669 Peri. 25.65121 -0.85614070 -0.49259556
a 7.8776650 Node 123.95379 +0.43576354 -0.85061325
e 0.3127962 Incl. 10.84832 +0.27772873 -0.18386600
P 22.1
From 873 observations 2003 Oct. 25-2026 Mar. 6, mean residual 0".7.
472P/NEAT-LINEAR
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2024 July 13.70930 TT Pike
q 3.3864241 (2000.0) P Q
n 0.04554933 Peri. 218.80601 +0.43352689 -0.89742197
a 7.7651179 Node 205.81078 +0.86651917 +0.44006467
e 0.5638928 Incl. 10.82623 +0.24738425 +0.03125537
P 21.6
From 1354 observations 2002 Sept. 15-2026 Feb. 19, mean residual 0".7.
493P/LONEOS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 14.10406 TT Pike
q 3.8229414 (2000.0) P Q
n 0.05128672 Peri. 83.22390 +0.10075159 -0.99488136
a 7.1746284 Node 1.08839 +0.67216935 +0.06231698
e 0.4671583 Incl. 24.10827 +0.73351038 +0.07954668
P 19.2
From 1200 observations 2005 Sept. 23-2026 Mar. 7, mean residual 0".6.
509P/Catalina
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Mar. 19.81749 TT Pike
q 3.6928839 (2000.0) P Q
n 0.05278090 Peri. 180.09960 -0.09249755 -0.98450330
a 7.0385764 Node 275.20882 +0.91365216 -0.02443557
e 0.4753365 Incl. 8.60409 +0.39583322 -0.17365529
P 18.7
From 569 observations 2006 Oct. 19-2026 Mar. 2, mean residual 0".7.
514P/Lemmon-PANSTARRS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Nov. 23.94491 TT Pike
q 2.9110693 (2000.0) P Q
n 0.10165033 Peri. 89.43650 +0.62474164 -0.77765512
a 4.5470547 Node 321.60630 +0.66375804 +0.57636872
e 0.3597901 Incl. 6.50491 +0.41124585 +0.25110080
P 9.70
From 173 observations 2006 Nov. 21-2026 Feb. 5, mean residual 0".5.