Коррекция орбиты некоторых периодических комет от 2 декабря ..
Добавлено: 03 дек 2025 09:09Коррекция орбиты некоторых периодических комет от 2 декабря 2025 года, MPEC 2025-X35
Orbital elements:
3I/ATLAS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Oct. 29.48308 TT Pike
q 1.3564534 (2000.0) P Q
z -3.7888711 Peri. 128.00774 -0.96791403 -0.24578546
+/-0.0000980 Node 322.15483 -0.24886918 +0.90890112
e 6.1394269 Incl. 175.11293 -0.03473555 +0.33688018
From 4779 observations 2025 May 8-Dec. 2, mean residual 0".5.
7P/Pons-Winnecke
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2027 Aug. 24.90612 TT Pike
q 1.1453350 (2000.0) P Q
n 0.16025547 Peri. 173.52342 -0.05118900 +0.92434909
a 3.3568155 Node 93.06114 -0.93242976 +0.09136862
e 0.6588031 Incl. 22.24939 -0.35770717 -0.37044639
P 6.15
From 1569 observations 2002 Jan. 11-2025 Nov. 26, mean residual 0".6.
Nongravitational parameters A1 = +0.00, A2 = +0.0026.
24P/Schaumasse
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 8.34236 TT Pike
q 1.1839408 (2000.0) P Q
n 0.12054432 Peri. 58.48303 -0.71166436 -0.67484344
a 4.0585560 Node 78.27170 +0.55777616 -0.71174158
e 0.7082852 Incl. 11.50228 +0.42710606 -0.19496221
P 8.18
From 921 observations 2017 July 24-2025 Dec. 2, mean residual 0".6.
Nongravitational parameters A1 = +0.14, A2 = +0.0039.
29P/Schwassmann-Wachmann
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2019 Apr. 28.37658 TT Pike
q 5.7968885 (2000.0) P Q
n 0.06610650 Peri. 51.91542 +0.98943194 -0.08133739
a 6.0576840 Node 312.40184 +0.01169593 +0.86991871
e 0.0430520 Incl. 9.35523 +0.14452561 +0.48644185
P 14.9
From 17112 observations 2020 Jan. 1-2025 Dec. 2, mean residual 0".6.
Nongravitational parameters A1 = -1.59, A2 = +1.8263.
40P/Vaisala
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Nov. 12.01700 TT Pike
q 1.8237766 (2000.0) P Q
n 0.08966663 Peri. 52.05743 -0.98723753 +0.02656199
a 4.9436624 Node 128.90063 -0.06929026 -0.95941680
e 0.6310880 Incl. 11.64042 +0.14339076 -0.28073807
P 11.0
From 65 observations 2024 Nov. 29-2025 Nov. 28, mean residual 0".6.
43P/Wolf-Harrington
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Aug. 4.58351 TT Pike
q 2.4427831 (2000.0) P Q
n 0.10934144 Peri. 223.78803 -0.29693529 -0.94371839
a 4.3312459 Node 243.97987 +0.91465924 -0.23727016
e 0.4360091 Incl. 9.33001 +0.27427705 -0.23043106
P 9.01
From 1200 observations 2023 Sept. 11-2025 Dec. 2, mean residual 0".5.
Nongravitational parameters A1 = -2.30, A2 = +1.2470.
47P/Ashbrook-Jackson
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Oct. 28.00477 TT Pike
q 2.8074551 (2000.0) P Q
n 0.11800659 Peri. 357.91830 +0.99593416 +0.08924373
a 4.1165355 Node 356.88095 -0.07904779 +0.80041062
e 0.3180054 Incl. 13.03942 -0.04320413 +0.59277179
P 8.35
From 2071 observations 2012 Feb. 15-2025 Dec. 2, mean residual 0".7.
Nongravitational parameters A1 = -0.10, A2 = -0.0142.
48P/Johnson
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Mar. 2.66115 TT Pike
q 2.0067835 (2000.0) P Q
n 0.15057016 Peri. 216.78726 +0.82454322 +0.52982548
a 3.4992646 Node 110.06365 -0.45560898 +0.82979816
e 0.4265128 Incl. 12.20176 -0.33548315 +0.17527114
P 6.55
From 1392 observations 2018 Feb. 16-2025 Dec. 1, mean residual 0".7.
Nongravitational parameters A1 = +0.56, A2 = +0.0556.
49P/Arend-Rigaux
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Apr. 10.59758 TT Pike
q 1.4313718 (2000.0) P Q
n 0.14617701 Peri. 332.92568 -0.05182094 -0.95677158
a 3.5690283 Node 118.79079 +0.96516639 -0.12157377
e 0.5989464 Incl. 19.05974 +0.25645357 +0.26421198
P 6.74
From 4374 observations 2004 June 24-2025 Nov. 28, mean residual 0".6.
Nongravitational parameters A1 = -0.02, A2 = -0.0008.
63P/Wild
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 July 6.16707 TT Pike
q 1.9745647 (2000.0) P Q
n 0.07325194 Peri. 168.73549 -0.97281412 -0.23121694
a 5.6570491 Node 357.76503 +0.17769507 -0.70898476
e 0.6509550 Incl. 19.61603 +0.14851647 -0.66624270
P 13.5
From 1979 observations 1960 Apr. 16-2025 Nov. 26, mean residual 0".6.
Nongravitational parameters A1 = +0.31, A2 = -0.1100.
65P/Gunn
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 June 16.36386 TT Pike
q 2.9261767 (2000.0) P Q
n 0.12838160 Peri. 213.65297 +0.09176756 +0.98578296
a 3.8916538 Node 61.97254 -0.87485864 +0.14732463
e 0.2480891 Incl. 9.17499 -0.47560601 -0.08079236
P 7.68
From 3209 observations 2013 Jan. 1-2025 Nov. 22, mean residual 0".7.
Nongravitational parameters A1 = -0.20, A2 = -0.0220.
74P/Smirnova-Chernykh
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Apr. 5.63071 TT Pike
q 4.8358962 (2000.0) P Q
n 0.08523280 Peri. 59.70111 -0.36156165 -0.92871192
a 5.1136563 Node 51.72453 +0.81538649 -0.35775808
e 0.0543173 Incl. 6.01502 +0.45212614 -0.09748498
P 11.6
From 1880 observations 2018 Jan. 1-2025 Nov. 21, mean residual 0".5.
Nongravitational parameters A1 = -2.03, A2 = -0.4185.
78P/Gehrels
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 June 25.06987 TT Pike
q 2.0045748 (2000.0) P Q
n 0.13666090 Peri. 192.78030 +0.72871118 -0.68258368
a 3.7328442 Node 210.49717 +0.63751221 +0.70565337
e 0.4629900 Incl. 6.25722 +0.25011637 +0.19008641
P 7.21
From 2749 observations 2018 May 15-2025 Dec. 2, mean residual 0".6.
Nongravitational parameters A1 = -0.80, A2 = -0.1887.
93P/Lovas
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 May 2.93864 TT Pike
q 1.6884374 (2000.0) P Q
n 0.10778603 Peri. 75.03845 +0.57181947 -0.81704431
a 4.3728147 Node 339.54927 +0.64768434 +0.50489946
e 0.6138786 Incl. 12.21040 +0.50351513 +0.27841539
P 9.14
From 3497 observations 1980 Dec. 5-2025 Nov. 21, 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. 22.09625 TT Pike
q 2.1580279 (2000.0) P Q
n 0.12867526 Peri. 103.92960 -0.83970709 -0.50898813
a 3.8857305 Node 45.88009 +0.33765377 -0.76234834
e 0.4446275 Incl. 15.28672 +0.42530216 -0.39969499
P 7.66
From 3237 observations 2010 Sept. 12-2025 Nov. 30, mean residual 0".7.
Nongravitational parameters A1 = -0.65, A2 = +0.0112.
124P/Mrkos
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 June 23.58870 TT Pike
q 1.7349030 (2000.0) P Q
n 0.15875357 Peri. 185.10914 -0.99608046 +0.08845095
a 3.3779539 Node 359.95941 -0.05063342 -0.57361434
e 0.4864042 Incl. 31.40191 -0.07252561 -0.81433593
P 6.21
From 878 observations 2020 Jan. 1-2025 Nov. 29, mean residual 0".4.
Nongravitational parameters A1 = -0.03, A2 = +0.0104.
128P/Shoemaker-Holt
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 July 16.92835 TT Pike
q 3.0369651 (2000.0) P Q
n 0.10389891 Peri. 210.53923 +0.42588278 -0.90375782
a 4.4812111 Node 214.30697 +0.84476321 +0.41419015
e 0.3222892 Incl. 4.37147 +0.32403546 +0.10801996
P 9.49
From 1003 observations 1987 Sept. 24-2025 Nov. 24, mean residual 0".9.
131P/Mueller
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Feb. 15.69411 TT Pike
q 2.4078078 (2000.0) P Q
n 0.13995750 Peri. 179.26546 +0.83480542 -0.54582970
a 3.6739954 Node 214.13279 +0.50445956 +0.81068055
e 0.3446350 Incl. 7.36220 +0.22050049 +0.21181827
P 7.04
From 856 observations 1990 Sept. 15-2025 Nov. 16, mean residual 0".8.
Nongravitational parameters A1 = +0.74, A2 = -0.0427.
136P/Mueller
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Jan. 3.73606 TT Pike
q 2.9590854 (2000.0) P Q
n 0.11502579 Peri. 225.38984 +0.99229799 -0.05529435
a 4.1873497 Node 137.41163 +0.08473196 +0.95573606
e 0.2933274 Incl. 9.42753 -0.09036148 +0.28898290
P 8.57
From 458 observations 2016 Aug. 5-2025 Nov. 28, mean residual 0".7.
Nongravitational parameters A1 = -0.66, A2 = +0.1260.
143P/Kowal-Mrkos
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Dec. 27.48897 TT Pike
q 2.9564175 (2000.0) P Q
n 0.09482649 Peri. 304.64400 -0.98972707 +0.11622796
a 4.7626602 Node 242.15929 -0.07944002 -0.93123030
e 0.3792508 Incl. 5.40258 -0.11886800 -0.34540004
P 10.4
From 241 observations 2020 July 28-2025 Dec. 2, mean residual 0".2.
145P/Shoemaker-Levy
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 31.93328 TT Pike
q 1.8897198 (2000.0) P Q
n 0.11745782 Peri. 10.41882 +0.79825469 -0.59584532
a 4.1293475 Node 26.76677 +0.53759577 +0.63887135
e 0.5423684 Incl. 11.27821 +0.27162517 +0.48663307
P 8.39
From 1084 observations 1991 Sept. 12-2025 Dec. 2, mean residual 0".6.
Nongravitational parameters A1 = +0.10, A2 = -0.0173.
164P/Christensen
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 May 27.37452 TT Pike
q 1.6748679 (2000.0) P Q
n 0.14119600 Peri. 325.93240 +0.56251711 -0.77787837
a 3.6524795 Node 88.26759 +0.80720982 +0.44341569
e 0.5414436 Incl. 16.27635 +0.17884855 +0.44529514
P 6.98
From 1243 observations 2010 Oct. 7-2025 Dec. 1, mean residual 0".7.
195P/Hill
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Aug. 5.99998 TT Pike
q 4.4406089 (2000.0) P Q
n 0.06029775 Peri. 250.65376 -0.52714440 -0.66476126
a 6.4407329 Node 243.08973 +0.80912343 -0.58301105
e 0.3105429 Incl. 36.41505 -0.25968840 -0.46710875
P 16.3
From 963 observations 1993 Feb. 26-2025 Dec. 1, mean residual 0".6.
210P/Christensen
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Nov. 22.72679 TT Pike
q 0.5244175 (2000.0) P Q
n 0.17541070 Peri. 345.94966 +0.17411159 -0.96846930
a 3.1605694 Node 93.79672 +0.91983814 +0.09535306
e 0.8340750 Incl. 10.28729 +0.35154368 +0.23016300
P 5.62
From 661 observations 2008 Dec. 8-2025 Nov. 30, mean residual 0".7.
Nongravitational parameters A1 = -0.02, A2 = +0.0043.
217P/LINEAR
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 May 24.96375 TT Pike
q 1.2263050 (2000.0) P Q
n 0.12570631 Peri. 247.04386 +0.95777336 -0.22292598
a 3.9466747 Node 125.36815 +0.26648862 +0.92538517
e 0.6892815 Incl. 12.86675 -0.10795372 +0.30653924
P 7.84
From 3435 observations 2001 June 21-2025 Dec. 2, mean residual 0".6.
Nongravitational parameters A1 = +0.17, A2 = +0.0032.
233P/La Sagra
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 8.10896 TT Pike
q 1.7767552 (2000.0) P Q
n 0.18709947 Peri. 26.98922 -0.19787692 -0.96182643
a 3.0275245 Node 74.91972 +0.86029662 -0.26283967
e 0.4131327 Incl. 11.29019 +0.46982386 +0.07619200
P 5.27
From 119 observations 2005 Feb. 9-2025 Nov. 28, mean residual 0".6.
235P/LINEAR
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 22.66663 TT Pike
q 1.9779190 (2000.0) P Q
n 0.15409796 Peri. 352.19414 -0.97612109 +0.20912667
a 3.4456523 Node 200.17005 -0.18895936 -0.95088583
e 0.4259667 Incl. 9.81320 -0.10715402 -0.22821521
P 6.40
From 64 observations 2024 Nov. 21-2025 Nov. 29, mean residual 0".5.
240P/NEAT
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 19.94983 TT Pike
q 2.1216400 (2000.0) P Q
n 0.12991696 Peri. 352.07777 +0.37983138 -0.84087112
a 3.8609320 Node 74.91155 +0.86911212 +0.18163541
e 0.4504850 Incl. 23.53672 +0.31681579 +0.50984737
P 7.59
From 1090 observations 2020 Mar. 23-2025 Dec. 1, mean residual 0".5.
Nongravitational parameters A1 = -0.12, A2 = +0.5001.
240P/NEAT B
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 19.93187 TT Pike
q 2.1215856 (2000.0) P Q
n 0.12996916 Peri. 352.05073 +0.38019540 -0.84073486
a 3.8598981 Node 74.91383 +0.86903545 +0.18204873
e 0.4503519 Incl. 23.53246 +0.31658938 +0.50992465
P 7.58
From 299 observations 2025 Oct. 16-Dec. 1, mean residual 0".5.
242P/Spahr
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2024 Dec. 23.54502 TT Pike
q 3.9719302 (2000.0) P Q
n 0.07562022 Peri. 245.05362 +0.41925565 -0.90786651
a 5.5383120 Node 180.18806 +0.89683352 +0.41385767
e 0.2828266 Incl. 32.42826 -0.14111818 -0.06708372
P 13.0
From 1108 observations 2011 July 20-2025 Nov. 30, mean residual 0".7.
248P/Gibbs
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Sept. 14.94521 TT Pike
q 2.1577351 (2000.0) P Q
n 0.06727951 Peri. 209.99913 +0.53444849 -0.84362582
a 5.9870679 Node 207.79129 +0.79579562 +0.52282821
e 0.6396007 Incl. 6.35121 +0.28473521 +0.12225444
P 14.6
From 207 observations 1996 Sept. 14-2025 Dec. 1, mean residual 0".8.
261P/Larson
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 27.41300 TT Pike
q 2.0141965 (2000.0) P Q
n 0.15124302 Peri. 67.36665 +0.99478350 +0.02560866
a 3.4888783 Node 291.05038 -0.06589700 +0.90022406
e 0.4226808 Incl. 6.07342 +0.07786766 +0.43467326
P 6.52
From 1183 observations 2005 July 3-2025 Dec. 1, mean residual 0".8.
Nongravitational parameters A1 = +0.36, A2 = +0.0857.
276P/Vorobjov
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2024 Dec. 11.96712 TT Pike
q 3.8985074 (2000.0) P Q
n 0.07893172 Peri. 199.65514 +0.63883368 -0.75805789
a 5.3823055 Node 211.06412 +0.73552400 +0.65183544
e 0.2756808 Incl. 14.74155 +0.22560135 +0.02141965
P 12.5
From 1181 observations 2000 Dec. 19-2025 Nov. 25, mean residual 0".6.
302P/Lemmon-PANSTARRS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Mar. 9.29286 TT Pike
q 3.2885999 (2000.0) P Q
n 0.11185756 Peri. 208.60752 +0.86658652 +0.49094558
a 4.2660488 Node 121.71710 -0.43548599 +0.83152091
e 0.2291228 Incl. 6.03566 -0.24367964 +0.25989499
P 8.81
From 788 observations 2007 Aug. 16-2025 Nov. 27, mean residual 0".6.
306P/LINEAR
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Aug. 1.64707 TT Pike
q 1.2729864 (2000.0) P Q
n 0.17850234 Peri. 0.91462 +0.95236137 +0.30145226
a 3.1239694 Node 341.33897 -0.28071497 +0.80729005
e 0.5925100 Incl. 8.30174 -0.11919280 +0.50735522
P 5.52
From 384 observations 2003 July 30-2025 Nov. 27, mean residual 0".9.
427P/ATLAS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2023 Mar. 18.20416 TT Pike
q 2.1665156 (2000.0) P Q
n 0.17515759 Peri. 99.62865 +0.97008846 +0.14335626
a 3.1636134 Node 252.32631 -0.20316872 +0.92113672
e 0.3151769 Incl. 11.86496 +0.13285647 +0.36187862
P 5.63
From 437 observations 2017 July 22-2021 June 13, mean residual 0".6.
450P/LONEOS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2027 Feb. 20.87212 TT Pike
q 5.4135610 (2000.0) P Q
n 0.04457669 Peri. 25.65135 -0.85614092 -0.49259521
a 7.8776647 Node 123.95368 +0.43576306 -0.85061333
e 0.3127962 Incl. 10.84829 +0.27772879 -0.18386660
P 22.1
From 627 observations 2003 Oct. 25-2025 Nov. 28, mean residual 0".7.
486P/Leonard
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Apr. 3.81471 TT Pike
q 2.3089455 (2000.0) P Q
n 0.14268638 Peri. 93.93697 +0.68102495 +0.73185767
a 3.6270012 Node 219.02338 -0.68620888 +0.62627336
e 0.3634010 Incl. 2.20970 -0.25558244 +0.26863736
P 6.91
From 519 observations 2018 June 8-2025 Nov. 28, mean residual 0".7.
493P/LONEOS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 14.09790 TT Pike
q 3.8229661 (2000.0) P Q
n 0.05128138 Peri. 83.22292 +0.10076804 -0.99487969
a 7.1751264 Node 1.08842 +0.67216764 +0.06232784
e 0.4671918 Incl. 24.10832 +0.73350969 +0.07955904
P 19.2
From 429 observations 2024 Aug. 2-2025 Dec. 2, mean residual 0".5.
509P/Catalina
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Mar. 19.81882 TT Pike
q 3.6928849 (2000.0) P Q
n 0.05278089 Peri. 180.10024 -0.09249910 -0.98450328
a 7.0385774 Node 275.20829 +0.91365268 -0.02443760
e 0.4753365 Incl. 8.60403 +0.39583165 -0.17365513
P 18.7
From 377 observations 2006 Oct. 19-2025 Nov. 30, mean residual 0".7.
511P/PANSTARRS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 July 11.03466 TT Pike
q 2.2959964 (2000.0) P Q
n 0.18872614 Peri. 81.22576 +0.95815526 +0.12974453
a 3.0101030 Node 271.02750 -0.22453373 +0.89354087
e 0.2372366 Incl. 14.78529 +0.17754747 +0.42982680
P 5.22
From 71 observations 2015 Dec. 12-2025 Nov. 26, mean residual 0".1.
513P/Broughton
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 June 13.77215 TT Pike
q 3.2536492 (2000.0) P Q
n 0.05043364 Peri. 304.86682 +0.95209401 +0.00048604
a 7.2553075 Node 56.99699 +0.17707979 +0.81440751
e 0.5515491 Incl. 21.38563 -0.24931857 +0.58029317
P 19.5
From 183 observations 2005 Aug. 26-2025 Nov. 29, mean residual 0".6.
Orbital elements:
3I/ATLAS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Oct. 29.48308 TT Pike
q 1.3564534 (2000.0) P Q
z -3.7888711 Peri. 128.00774 -0.96791403 -0.24578546
+/-0.0000980 Node 322.15483 -0.24886918 +0.90890112
e 6.1394269 Incl. 175.11293 -0.03473555 +0.33688018
From 4779 observations 2025 May 8-Dec. 2, mean residual 0".5.
7P/Pons-Winnecke
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2027 Aug. 24.90612 TT Pike
q 1.1453350 (2000.0) P Q
n 0.16025547 Peri. 173.52342 -0.05118900 +0.92434909
a 3.3568155 Node 93.06114 -0.93242976 +0.09136862
e 0.6588031 Incl. 22.24939 -0.35770717 -0.37044639
P 6.15
From 1569 observations 2002 Jan. 11-2025 Nov. 26, mean residual 0".6.
Nongravitational parameters A1 = +0.00, A2 = +0.0026.
24P/Schaumasse
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 8.34236 TT Pike
q 1.1839408 (2000.0) P Q
n 0.12054432 Peri. 58.48303 -0.71166436 -0.67484344
a 4.0585560 Node 78.27170 +0.55777616 -0.71174158
e 0.7082852 Incl. 11.50228 +0.42710606 -0.19496221
P 8.18
From 921 observations 2017 July 24-2025 Dec. 2, mean residual 0".6.
Nongravitational parameters A1 = +0.14, A2 = +0.0039.
29P/Schwassmann-Wachmann
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2019 Apr. 28.37658 TT Pike
q 5.7968885 (2000.0) P Q
n 0.06610650 Peri. 51.91542 +0.98943194 -0.08133739
a 6.0576840 Node 312.40184 +0.01169593 +0.86991871
e 0.0430520 Incl. 9.35523 +0.14452561 +0.48644185
P 14.9
From 17112 observations 2020 Jan. 1-2025 Dec. 2, mean residual 0".6.
Nongravitational parameters A1 = -1.59, A2 = +1.8263.
40P/Vaisala
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Nov. 12.01700 TT Pike
q 1.8237766 (2000.0) P Q
n 0.08966663 Peri. 52.05743 -0.98723753 +0.02656199
a 4.9436624 Node 128.90063 -0.06929026 -0.95941680
e 0.6310880 Incl. 11.64042 +0.14339076 -0.28073807
P 11.0
From 65 observations 2024 Nov. 29-2025 Nov. 28, mean residual 0".6.
43P/Wolf-Harrington
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Aug. 4.58351 TT Pike
q 2.4427831 (2000.0) P Q
n 0.10934144 Peri. 223.78803 -0.29693529 -0.94371839
a 4.3312459 Node 243.97987 +0.91465924 -0.23727016
e 0.4360091 Incl. 9.33001 +0.27427705 -0.23043106
P 9.01
From 1200 observations 2023 Sept. 11-2025 Dec. 2, mean residual 0".5.
Nongravitational parameters A1 = -2.30, A2 = +1.2470.
47P/Ashbrook-Jackson
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Oct. 28.00477 TT Pike
q 2.8074551 (2000.0) P Q
n 0.11800659 Peri. 357.91830 +0.99593416 +0.08924373
a 4.1165355 Node 356.88095 -0.07904779 +0.80041062
e 0.3180054 Incl. 13.03942 -0.04320413 +0.59277179
P 8.35
From 2071 observations 2012 Feb. 15-2025 Dec. 2, mean residual 0".7.
Nongravitational parameters A1 = -0.10, A2 = -0.0142.
48P/Johnson
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Mar. 2.66115 TT Pike
q 2.0067835 (2000.0) P Q
n 0.15057016 Peri. 216.78726 +0.82454322 +0.52982548
a 3.4992646 Node 110.06365 -0.45560898 +0.82979816
e 0.4265128 Incl. 12.20176 -0.33548315 +0.17527114
P 6.55
From 1392 observations 2018 Feb. 16-2025 Dec. 1, mean residual 0".7.
Nongravitational parameters A1 = +0.56, A2 = +0.0556.
49P/Arend-Rigaux
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Apr. 10.59758 TT Pike
q 1.4313718 (2000.0) P Q
n 0.14617701 Peri. 332.92568 -0.05182094 -0.95677158
a 3.5690283 Node 118.79079 +0.96516639 -0.12157377
e 0.5989464 Incl. 19.05974 +0.25645357 +0.26421198
P 6.74
From 4374 observations 2004 June 24-2025 Nov. 28, mean residual 0".6.
Nongravitational parameters A1 = -0.02, A2 = -0.0008.
63P/Wild
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 July 6.16707 TT Pike
q 1.9745647 (2000.0) P Q
n 0.07325194 Peri. 168.73549 -0.97281412 -0.23121694
a 5.6570491 Node 357.76503 +0.17769507 -0.70898476
e 0.6509550 Incl. 19.61603 +0.14851647 -0.66624270
P 13.5
From 1979 observations 1960 Apr. 16-2025 Nov. 26, mean residual 0".6.
Nongravitational parameters A1 = +0.31, A2 = -0.1100.
65P/Gunn
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 June 16.36386 TT Pike
q 2.9261767 (2000.0) P Q
n 0.12838160 Peri. 213.65297 +0.09176756 +0.98578296
a 3.8916538 Node 61.97254 -0.87485864 +0.14732463
e 0.2480891 Incl. 9.17499 -0.47560601 -0.08079236
P 7.68
From 3209 observations 2013 Jan. 1-2025 Nov. 22, mean residual 0".7.
Nongravitational parameters A1 = -0.20, A2 = -0.0220.
74P/Smirnova-Chernykh
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Apr. 5.63071 TT Pike
q 4.8358962 (2000.0) P Q
n 0.08523280 Peri. 59.70111 -0.36156165 -0.92871192
a 5.1136563 Node 51.72453 +0.81538649 -0.35775808
e 0.0543173 Incl. 6.01502 +0.45212614 -0.09748498
P 11.6
From 1880 observations 2018 Jan. 1-2025 Nov. 21, mean residual 0".5.
Nongravitational parameters A1 = -2.03, A2 = -0.4185.
78P/Gehrels
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 June 25.06987 TT Pike
q 2.0045748 (2000.0) P Q
n 0.13666090 Peri. 192.78030 +0.72871118 -0.68258368
a 3.7328442 Node 210.49717 +0.63751221 +0.70565337
e 0.4629900 Incl. 6.25722 +0.25011637 +0.19008641
P 7.21
From 2749 observations 2018 May 15-2025 Dec. 2, mean residual 0".6.
Nongravitational parameters A1 = -0.80, A2 = -0.1887.
93P/Lovas
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 May 2.93864 TT Pike
q 1.6884374 (2000.0) P Q
n 0.10778603 Peri. 75.03845 +0.57181947 -0.81704431
a 4.3728147 Node 339.54927 +0.64768434 +0.50489946
e 0.6138786 Incl. 12.21040 +0.50351513 +0.27841539
P 9.14
From 3497 observations 1980 Dec. 5-2025 Nov. 21, 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. 22.09625 TT Pike
q 2.1580279 (2000.0) P Q
n 0.12867526 Peri. 103.92960 -0.83970709 -0.50898813
a 3.8857305 Node 45.88009 +0.33765377 -0.76234834
e 0.4446275 Incl. 15.28672 +0.42530216 -0.39969499
P 7.66
From 3237 observations 2010 Sept. 12-2025 Nov. 30, mean residual 0".7.
Nongravitational parameters A1 = -0.65, A2 = +0.0112.
124P/Mrkos
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 June 23.58870 TT Pike
q 1.7349030 (2000.0) P Q
n 0.15875357 Peri. 185.10914 -0.99608046 +0.08845095
a 3.3779539 Node 359.95941 -0.05063342 -0.57361434
e 0.4864042 Incl. 31.40191 -0.07252561 -0.81433593
P 6.21
From 878 observations 2020 Jan. 1-2025 Nov. 29, mean residual 0".4.
Nongravitational parameters A1 = -0.03, A2 = +0.0104.
128P/Shoemaker-Holt
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 July 16.92835 TT Pike
q 3.0369651 (2000.0) P Q
n 0.10389891 Peri. 210.53923 +0.42588278 -0.90375782
a 4.4812111 Node 214.30697 +0.84476321 +0.41419015
e 0.3222892 Incl. 4.37147 +0.32403546 +0.10801996
P 9.49
From 1003 observations 1987 Sept. 24-2025 Nov. 24, mean residual 0".9.
131P/Mueller
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Feb. 15.69411 TT Pike
q 2.4078078 (2000.0) P Q
n 0.13995750 Peri. 179.26546 +0.83480542 -0.54582970
a 3.6739954 Node 214.13279 +0.50445956 +0.81068055
e 0.3446350 Incl. 7.36220 +0.22050049 +0.21181827
P 7.04
From 856 observations 1990 Sept. 15-2025 Nov. 16, mean residual 0".8.
Nongravitational parameters A1 = +0.74, A2 = -0.0427.
136P/Mueller
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Jan. 3.73606 TT Pike
q 2.9590854 (2000.0) P Q
n 0.11502579 Peri. 225.38984 +0.99229799 -0.05529435
a 4.1873497 Node 137.41163 +0.08473196 +0.95573606
e 0.2933274 Incl. 9.42753 -0.09036148 +0.28898290
P 8.57
From 458 observations 2016 Aug. 5-2025 Nov. 28, mean residual 0".7.
Nongravitational parameters A1 = -0.66, A2 = +0.1260.
143P/Kowal-Mrkos
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Dec. 27.48897 TT Pike
q 2.9564175 (2000.0) P Q
n 0.09482649 Peri. 304.64400 -0.98972707 +0.11622796
a 4.7626602 Node 242.15929 -0.07944002 -0.93123030
e 0.3792508 Incl. 5.40258 -0.11886800 -0.34540004
P 10.4
From 241 observations 2020 July 28-2025 Dec. 2, mean residual 0".2.
145P/Shoemaker-Levy
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 31.93328 TT Pike
q 1.8897198 (2000.0) P Q
n 0.11745782 Peri. 10.41882 +0.79825469 -0.59584532
a 4.1293475 Node 26.76677 +0.53759577 +0.63887135
e 0.5423684 Incl. 11.27821 +0.27162517 +0.48663307
P 8.39
From 1084 observations 1991 Sept. 12-2025 Dec. 2, mean residual 0".6.
Nongravitational parameters A1 = +0.10, A2 = -0.0173.
164P/Christensen
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 May 27.37452 TT Pike
q 1.6748679 (2000.0) P Q
n 0.14119600 Peri. 325.93240 +0.56251711 -0.77787837
a 3.6524795 Node 88.26759 +0.80720982 +0.44341569
e 0.5414436 Incl. 16.27635 +0.17884855 +0.44529514
P 6.98
From 1243 observations 2010 Oct. 7-2025 Dec. 1, mean residual 0".7.
195P/Hill
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Aug. 5.99998 TT Pike
q 4.4406089 (2000.0) P Q
n 0.06029775 Peri. 250.65376 -0.52714440 -0.66476126
a 6.4407329 Node 243.08973 +0.80912343 -0.58301105
e 0.3105429 Incl. 36.41505 -0.25968840 -0.46710875
P 16.3
From 963 observations 1993 Feb. 26-2025 Dec. 1, mean residual 0".6.
210P/Christensen
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Nov. 22.72679 TT Pike
q 0.5244175 (2000.0) P Q
n 0.17541070 Peri. 345.94966 +0.17411159 -0.96846930
a 3.1605694 Node 93.79672 +0.91983814 +0.09535306
e 0.8340750 Incl. 10.28729 +0.35154368 +0.23016300
P 5.62
From 661 observations 2008 Dec. 8-2025 Nov. 30, mean residual 0".7.
Nongravitational parameters A1 = -0.02, A2 = +0.0043.
217P/LINEAR
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 May 24.96375 TT Pike
q 1.2263050 (2000.0) P Q
n 0.12570631 Peri. 247.04386 +0.95777336 -0.22292598
a 3.9466747 Node 125.36815 +0.26648862 +0.92538517
e 0.6892815 Incl. 12.86675 -0.10795372 +0.30653924
P 7.84
From 3435 observations 2001 June 21-2025 Dec. 2, mean residual 0".6.
Nongravitational parameters A1 = +0.17, A2 = +0.0032.
233P/La Sagra
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 8.10896 TT Pike
q 1.7767552 (2000.0) P Q
n 0.18709947 Peri. 26.98922 -0.19787692 -0.96182643
a 3.0275245 Node 74.91972 +0.86029662 -0.26283967
e 0.4131327 Incl. 11.29019 +0.46982386 +0.07619200
P 5.27
From 119 observations 2005 Feb. 9-2025 Nov. 28, mean residual 0".6.
235P/LINEAR
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 22.66663 TT Pike
q 1.9779190 (2000.0) P Q
n 0.15409796 Peri. 352.19414 -0.97612109 +0.20912667
a 3.4456523 Node 200.17005 -0.18895936 -0.95088583
e 0.4259667 Incl. 9.81320 -0.10715402 -0.22821521
P 6.40
From 64 observations 2024 Nov. 21-2025 Nov. 29, mean residual 0".5.
240P/NEAT
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 19.94983 TT Pike
q 2.1216400 (2000.0) P Q
n 0.12991696 Peri. 352.07777 +0.37983138 -0.84087112
a 3.8609320 Node 74.91155 +0.86911212 +0.18163541
e 0.4504850 Incl. 23.53672 +0.31681579 +0.50984737
P 7.59
From 1090 observations 2020 Mar. 23-2025 Dec. 1, mean residual 0".5.
Nongravitational parameters A1 = -0.12, A2 = +0.5001.
240P/NEAT B
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 19.93187 TT Pike
q 2.1215856 (2000.0) P Q
n 0.12996916 Peri. 352.05073 +0.38019540 -0.84073486
a 3.8598981 Node 74.91383 +0.86903545 +0.18204873
e 0.4503519 Incl. 23.53246 +0.31658938 +0.50992465
P 7.58
From 299 observations 2025 Oct. 16-Dec. 1, mean residual 0".5.
242P/Spahr
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2024 Dec. 23.54502 TT Pike
q 3.9719302 (2000.0) P Q
n 0.07562022 Peri. 245.05362 +0.41925565 -0.90786651
a 5.5383120 Node 180.18806 +0.89683352 +0.41385767
e 0.2828266 Incl. 32.42826 -0.14111818 -0.06708372
P 13.0
From 1108 observations 2011 July 20-2025 Nov. 30, mean residual 0".7.
248P/Gibbs
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Sept. 14.94521 TT Pike
q 2.1577351 (2000.0) P Q
n 0.06727951 Peri. 209.99913 +0.53444849 -0.84362582
a 5.9870679 Node 207.79129 +0.79579562 +0.52282821
e 0.6396007 Incl. 6.35121 +0.28473521 +0.12225444
P 14.6
From 207 observations 1996 Sept. 14-2025 Dec. 1, mean residual 0".8.
261P/Larson
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 27.41300 TT Pike
q 2.0141965 (2000.0) P Q
n 0.15124302 Peri. 67.36665 +0.99478350 +0.02560866
a 3.4888783 Node 291.05038 -0.06589700 +0.90022406
e 0.4226808 Incl. 6.07342 +0.07786766 +0.43467326
P 6.52
From 1183 observations 2005 July 3-2025 Dec. 1, mean residual 0".8.
Nongravitational parameters A1 = +0.36, A2 = +0.0857.
276P/Vorobjov
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2024 Dec. 11.96712 TT Pike
q 3.8985074 (2000.0) P Q
n 0.07893172 Peri. 199.65514 +0.63883368 -0.75805789
a 5.3823055 Node 211.06412 +0.73552400 +0.65183544
e 0.2756808 Incl. 14.74155 +0.22560135 +0.02141965
P 12.5
From 1181 observations 2000 Dec. 19-2025 Nov. 25, mean residual 0".6.
302P/Lemmon-PANSTARRS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Mar. 9.29286 TT Pike
q 3.2885999 (2000.0) P Q
n 0.11185756 Peri. 208.60752 +0.86658652 +0.49094558
a 4.2660488 Node 121.71710 -0.43548599 +0.83152091
e 0.2291228 Incl. 6.03566 -0.24367964 +0.25989499
P 8.81
From 788 observations 2007 Aug. 16-2025 Nov. 27, mean residual 0".6.
306P/LINEAR
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Aug. 1.64707 TT Pike
q 1.2729864 (2000.0) P Q
n 0.17850234 Peri. 0.91462 +0.95236137 +0.30145226
a 3.1239694 Node 341.33897 -0.28071497 +0.80729005
e 0.5925100 Incl. 8.30174 -0.11919280 +0.50735522
P 5.52
From 384 observations 2003 July 30-2025 Nov. 27, mean residual 0".9.
427P/ATLAS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2023 Mar. 18.20416 TT Pike
q 2.1665156 (2000.0) P Q
n 0.17515759 Peri. 99.62865 +0.97008846 +0.14335626
a 3.1636134 Node 252.32631 -0.20316872 +0.92113672
e 0.3151769 Incl. 11.86496 +0.13285647 +0.36187862
P 5.63
From 437 observations 2017 July 22-2021 June 13, mean residual 0".6.
450P/LONEOS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2027 Feb. 20.87212 TT Pike
q 5.4135610 (2000.0) P Q
n 0.04457669 Peri. 25.65135 -0.85614092 -0.49259521
a 7.8776647 Node 123.95368 +0.43576306 -0.85061333
e 0.3127962 Incl. 10.84829 +0.27772879 -0.18386660
P 22.1
From 627 observations 2003 Oct. 25-2025 Nov. 28, mean residual 0".7.
486P/Leonard
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Apr. 3.81471 TT Pike
q 2.3089455 (2000.0) P Q
n 0.14268638 Peri. 93.93697 +0.68102495 +0.73185767
a 3.6270012 Node 219.02338 -0.68620888 +0.62627336
e 0.3634010 Incl. 2.20970 -0.25558244 +0.26863736
P 6.91
From 519 observations 2018 June 8-2025 Nov. 28, mean residual 0".7.
493P/LONEOS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 14.09790 TT Pike
q 3.8229661 (2000.0) P Q
n 0.05128138 Peri. 83.22292 +0.10076804 -0.99487969
a 7.1751264 Node 1.08842 +0.67216764 +0.06232784
e 0.4671918 Incl. 24.10832 +0.73350969 +0.07955904
P 19.2
From 429 observations 2024 Aug. 2-2025 Dec. 2, mean residual 0".5.
509P/Catalina
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Mar. 19.81882 TT Pike
q 3.6928849 (2000.0) P Q
n 0.05278089 Peri. 180.10024 -0.09249910 -0.98450328
a 7.0385774 Node 275.20829 +0.91365268 -0.02443760
e 0.4753365 Incl. 8.60403 +0.39583165 -0.17365513
P 18.7
From 377 observations 2006 Oct. 19-2025 Nov. 30, mean residual 0".7.
511P/PANSTARRS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 July 11.03466 TT Pike
q 2.2959964 (2000.0) P Q
n 0.18872614 Peri. 81.22576 +0.95815526 +0.12974453
a 3.0101030 Node 271.02750 -0.22453373 +0.89354087
e 0.2372366 Incl. 14.78529 +0.17754747 +0.42982680
P 5.22
From 71 observations 2015 Dec. 12-2025 Nov. 26, mean residual 0".1.
513P/Broughton
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 June 13.77215 TT Pike
q 3.2536492 (2000.0) P Q
n 0.05043364 Peri. 304.86682 +0.95209401 +0.00048604
a 7.2553075 Node 56.99699 +0.17707979 +0.81440751
e 0.5515491 Incl. 21.38563 -0.24931857 +0.58029317
P 19.5
From 183 observations 2005 Aug. 26-2025 Nov. 29, mean residual 0".6.