Коррекция орбиты некоторых периодических комет от 28 февраля ..
Добавлено: 28 фев 2025 23:00Коррекция орбиты некоторых периодических комет от 28 февраля 2025 года, MPEC 2025-D254
Orbital elements:
10P/Tempel
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2026 Aug. 2.15781 TT Pike
q 1.4173611 (2000.0) P Q
n 0.18378925 Peri. 195.49500 +0.68058008 +0.70910809
a 3.0637688 Node 117.80101 -0.64812768 +0.70000343
e 0.5373799 Incl. 12.02742 -0.34167420 +0.08462225
P 5.36
From 4607 observations 2003 Mar. 7-2025 Feb. 27, mean residual 0".6.
Nongravitational parameters A1 = +0.02, A2 = +0.0006.
12P/Pons-Brooks
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Apr. 21.13728 TT Pike
q 0.7810660 (2000.0) P Q
n 0.01378752 Peri. 199.00486 +0.14500125 -0.32936024
a 17.2244472 Node 255.85640 +0.98570054 +0.12989814
e 0.9546536 Incl. 74.19010 +0.08584341 -0.93522634
P 71.5
From 4380 observations 2023 Oct. 1-2025 Feb. 22, mean residual 0".6.
Nongravitational parameters A1 = +0.71, A2 = -0.2263.
29P/Schwassmann-Wachmann
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2019 May 2.67769 TT Pike
q 5.7942010 (2000.0) P Q
n 0.06612299 Peri. 52.12738 +0.98912008 -0.08503869
a 6.0566767 Node 312.40419 +0.01494610 +0.86986233
e 0.0433366 Incl. 9.35598 +0.14634914 +0.48590940
P 14.9
From 15139 observations 2020 Jan. 1-2025 Feb. 27, mean residual 0".6.
Nongravitational parameters A1 = -1.60, A2 = +2.7155.
30P/Reinmuth
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Aug. 17.22436 TT Pike
q 1.8138464 (2000.0) P Q
n 0.13653302 Peri. 9.51011 -0.59678908 -0.79267060
a 3.7351748 Node 117.23369 +0.72667241 -0.59974893
e 0.5143878 Incl. 8.05325 +0.34027929 -0.10942822
P 7.22
From 1184 observations 2011 Apr. 12-2025 Feb. 26, mean residual 0".8.
33P/Daniel
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Nov. 10.90098 TT Pike
q 2.2425025 (2000.0) P Q
n 0.11906254 Peri. 20.25971 +0.08404213 -0.93397521
a 4.0921603 Node 66.28072 +0.85400381 -0.11208104
e 0.4520003 Incl. 22.29404 +0.51343395 +0.33930539
P 8.28
From 783 observations 1999 Nov. 13-2025 Feb. 27, mean residual 0".8.
Nongravitational parameters A1 = +0.50, A2 = +0.0463.
43P/Wolf-Harrington
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Aug. 4.74945 TT Pike
q 2.4428824 (2000.0) P Q
n 0.10928839 Peri. 223.81810 -0.29768093 -0.94347421
a 4.3326476 Node 243.99528 +0.91447156 -0.23797217
e 0.4361687 Incl. 9.33264 +0.27409455 -0.23070687
P 9.02
From 1051 observations 2023 Sept. 11-2025 Feb. 26, mean residual 0".5.
Nongravitational parameters A1 = +1.98, A2 = +1.0334.
49P/Arend-Rigaux
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Apr. 10.61229 TT Pike
q 1.4313490 (2000.0) P Q
n 0.14612107 Peri. 332.93083 -0.05191074 -0.95676829
a 3.5699391 Node 118.79106 +0.96515466 -0.12166339
e 0.5990551 Incl. 19.05942 +0.25647953 +0.26418262
P 6.75
From 4198 observations 2004 June 24-2025 Feb. 26, mean residual 0".6.
Nongravitational parameters A1 = -0.02, A2 = -0.0006.
50P/Arend
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 May 12.64358 TT Pike
q 1.9219582 (2000.0) P Q
n 0.11929353 Peri. 49.31606 +0.71019146 -0.70346370
a 4.0868759 Node 355.14517 +0.50576025 +0.53717076
e 0.5297244 Incl. 19.10024 +0.48972918 +0.46538843
P 8.26
From 1856 observations 1999 Aug. 3-2025 Feb. 27, mean residual 0".7.
Nongravitational parameters A1 = +0.23, A2 = -0.0102.
60P/Tsuchinshan
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 July 20.61965 TT Pike
q 1.6456692 (2000.0) P Q
n 0.14857998 Peri. 216.92039 -0.56259626 -0.82437536
a 3.5304429 Node 267.39634 +0.77265040 -0.49745464
e 0.5338632 Incl. 3.57988 +0.29410340 -0.27008176
P 6.63
From 1432 observations 2005 Oct. 5-2025 Feb. 23, mean residual 0".7.
62P/Tsuchinshan
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2023 Dec. 25.19035 TT Pike
q 1.2651220 (2000.0) P Q
n 0.15924505 Peri. 47.32940 -0.43595758 -0.89667365
a 3.3710000 Node 68.66588 +0.79966908 -0.42516742
e 0.6247042 Incl. 4.73707 +0.41288055 -0.12332487
P 6.19
From 1989 observations 2023 Aug. 29-2024 June 1, mean residual 0".5.
Nongravitational parameters A1 = +0.58, A2 = +0.4727.
88P/Howell
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2026 Mar. 18.79594 TT Pike
q 1.3576747 (2000.0) P Q
n 0.17984852 Peri. 235.88250 +0.38149036 +0.92216587
a 3.1083611 Node 56.66892 -0.82094604 +0.36973903
e 0.5632185 Incl. 4.38197 -0.42486787 +0.11359204
P 5.48
From 2522 observations 2015 July 7-2025 Feb. 27, mean residual 0".8.
Nongravitational parameters A1 = +0.67, A2 = +0.0116.
89P/Russell
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Mar. 26.60314 TT Pike
q 2.2222801 (2000.0) P Q
n 0.13568408 Peri. 250.41735 +0.35698874 +0.92383592
a 3.7507384 Node 41.34464 -0.75936612 +0.37314569
e 0.4075086 Incl. 12.07177 -0.54398725 +0.08537852
P 7.26
From 650 observations 1980 Aug. 9-2025 Jan. 1, mean residual 0".6.
Nongravitational parameters A1 = +0.83, A2 = -0.0351.
121P/Shoemaker-Holt
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2023 June 30.59796 TT Pike
q 3.7322161 (2000.0) P Q
n 0.10025861 Peri. 11.94756 -0.26387100 -0.90120963
a 4.5890375 Node 94.10531 +0.85415700 -0.38390276
e 0.1867105 Incl. 20.16207 +0.44809365 +0.20109668
P 9.83
From 195 observations 2012 Oct. 22-2025 Feb. 21, mean residual 0".3.
143P/Kowal-Mrkos
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2026 Dec. 25.34597 TT Pike
q 2.9416873 (2000.0) P Q
n 0.09431167 Peri. 304.31834 -0.98934249 +0.11845148
a 4.7799764 Node 242.61608 -0.08102826 -0.93107341
e 0.3845812 Incl. 5.47240 -0.12097874 -0.34506745
P 10.5
From 211 observations 2020 July 28-2025 Feb. 21, mean residual 0".2.
154P/Brewington
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 June 13.22374 TT Pike
q 1.5525494 (2000.0) P Q
n 0.09383322 Peri. 47.93555 +0.84757308 -0.52322941
a 4.7962113 Node 342.99641 +0.35150913 +0.67861760
e 0.6762967 Incl. 17.63752 +0.39756912 +0.51546983
P 10.5
From 2832 observations 2013 July 6-2025 Feb. 26, mean residual 0".7.
Nongravitational parameters A1 = +1.53, A2 = +0.3758.
195P/Hill
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Aug. 5.50105 TT Pike
q 4.4406023 (2000.0) P Q
n 0.06022674 Peri. 250.58478 -0.52644622 -0.66524891
a 6.4457951 Node 243.10080 +0.80973439 -0.58215336
e 0.3110854 Incl. 36.41746 -0.25919990 -0.46748406
P 16.4
From 845 observations 1993 Feb. 26-2025 Feb. 25, mean residual 0".6.
202P/Scotti
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 May 17.30285 TT Pike
q 3.0699030 (2000.0) P Q
n 0.11875358 Peri. 274.49602 -0.03138667 -0.99950577
a 4.0992547 Node 177.30072 +0.93121283 -0.02988176
e 0.2511070 Incl. 2.14178 +0.36312194 -0.00976223
P 8.30
From 459 observations 2001 Dec. 10-2025 Feb. 22, mean residual 0".7.
Nongravitational parameters A1 = +0.07, A2 = +0.0154.
234P/LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Oct. 23.67002 TT Pike
q 2.8208997 (2000.0) P Q
n 0.13316202 Peri. 357.44202 -0.99864323 -0.05205193
a 3.7979490 Node 179.56550 +0.05061987 -0.97717804
e 0.2572571 Incl. 11.53384 +0.01222011 -0.20594582
P 7.40
From 302 observations 2001 Dec. 26-2025 Feb. 26, mean residual 0".7.
242P/Spahr
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Dec. 23.32513 TT Pike
q 3.9716508 (2000.0) P Q
n 0.07563053 Peri. 244.96159 +0.41976862 -0.90762792
a 5.5378087 Node 180.25868 +0.89665445 +0.41427702
e 0.2828118 Incl. 32.42355 -0.14073059 -0.06772082
P 13.0
From 1044 observations 2011 July 20-2025 Feb. 26, mean residual 0".7.
250P/Larson
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 May 16.74393 TT Pike
q 2.2723282 (2000.0) P Q
n 0.13424061 Peri. 45.70929 -0.46702759 -0.85696232
a 3.7775779 Node 73.30400 +0.73260798 -0.51302137
e 0.3984695 Incl. 13.15224 +0.49514722 -0.04924091
P 7.34
From 531 observations 1995 Dec. 22-2025 Feb. 21, mean residual 0".6.
253P/PANSTARRS
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Oct. 21.02683 TT Pike
q 2.0266504 (2000.0) P Q
n 0.15281977 Peri. 230.84671 +0.95114022 -0.30513940
a 3.4648386 Node 146.84254 +0.30315043 +0.89394439
e 0.4150809 Incl. 4.94442 +0.05858418 +0.32825809
P 6.45
From 880 observations 1998 Sept. 14-2025 Jan. 28, mean residual 0".6.
Nongravitational parameters A1 = -0.09, A2 = -0.0059.
254P/McNaught
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2020 Sept. 28.57849 TT Pike
q 3.1485162 (2000.0) P Q
n 0.09925304 Peri. 219.73054 +0.90355082 +0.09876539
a 4.6199807 Node 129.17974 -0.09787574 +0.99491946
e 0.3185001 Incl. 32.53904 -0.41715255 -0.01951067
P 9.93
From 721 observations 2020 July 18-2025 Feb. 26, mean residual 0".5.
268P/Bernardi
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Dec. 18.48437 TT Pike
q 2.4126827 (2000.0) P Q
n 0.10018956 Peri. 0.01771 -0.58282493 -0.78241585
a 4.5911455 Node 125.63243 +0.74551066 -0.62227649
e 0.4744922 Incl. 15.66144 +0.32330937 +0.02444192
P 9.84
From 193 observations 2004 Sept. 22-2025 Feb. 27, mean residual 0".4.
Nongravitational parameters A1 = +3.93, A2 = -0.8580.
294P/LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Aug. 11.18991 TT Pike
q 1.2730672 (2000.0) P Q
n 0.17293880 Peri. 237.58187 -0.96121568 +0.14467397
a 3.1906151 Node 309.60042 +0.01110090 -0.83038529
e 0.6009963 Incl. 17.74262 -0.27557428 -0.53807965
P 5.70
From 48 observations 2020 June 24-2025 Feb. 26, mean residual 0".3.
310P/Hill
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2023 Oct. 23.15792 TT Pike
q 2.4162809 (2000.0) P Q
n 0.11528318 Peri. 31.52075 +0.76359608 -0.64474199
a 4.1811148 Node 8.88364 +0.53511556 +0.60151120
e 0.4220965 Incl. 13.12009 +0.36134798 +0.47169063
P 8.55
From 589 observations 2006 Aug. 29-2025 Feb. 23, mean residual 0".5.
333P/LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Nov. 29.29816 TT Pike
q 1.1129751 (2000.0) P Q
n 0.11367848 Peri. 26.01968 -0.12520560 +0.73231413
a 4.2203702 Node 115.70684 +0.73012385 -0.38878817
e 0.7362850 Incl. 132.02230 +0.67174602 +0.55907045
P 8.67
From 1171 observations 2016 Jan. 1-2025 Feb. 18, mean residual 0".6.
350P/McNaught
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2026 Mar. 17.33458 TT Pike
q 3.6944124 (2000.0) P Q
n 0.11955818 Peri. 140.04434 -0.89897157 +0.42223977
a 4.0808427 Node 65.29546 -0.42744897 -0.78769292
e 0.0946937 Incl. 7.36539 -0.09559027 -0.44861280
P 8.24
From 158 observations 2005 Nov. 1-2025 Feb. 26, mean residual 0".8.
Nongravitational parameters A1 = +4.09, A2 = -0.0062.
404P/Bressi
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2023 Oct. 31.98968 TT Pike
q 4.1325455 (2000.0) P Q
n 0.09614658 Peri. 169.01545 +0.35469039 -0.91981817
a 4.7189658 Node 260.04203 +0.84440771 +0.39215588
e 0.1242688 Incl. 9.80428 +0.40146026 -0.01217750
P 10.3
From 516 observations 2020 Nov. 8-2025 Feb. 26, mean residual 0".6.
450P/LONEOS
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2027 Jan. 29.45613 TT Pike
q 5.4486748 (2000.0) P Q
n 0.04400871 Peri. 23.14756 -0.83776367 -0.52426975
a 7.9452998 Node 124.34879 +0.46761387 -0.83317374
e 0.3142266 Incl. 10.65280 +0.28193847 -0.17596234
P 22.4
From 606 observations 2003 Oct. 25-2025 Feb. 26, mean residual 0".7.
471P
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2023 Dec. 19.88304 TT Pike
q 2.1202147 (2000.0) P Q
n 0.07250617 Peri. 94.80992 +0.94700441 -0.31074213
a 5.6957741 Node 283.31127 +0.25147944 +0.87482681
e 0.6277565 Incl. 4.79680 +0.19985177 +0.37164146
P 13.6
From 909 observations 1996 June 23-2025 Feb. 27, mean residual 0".5.
472P/NEAT-LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 July 14.31347 TT Pike
q 3.3878200 (2000.0) P Q
n 0.04536298 Peri. 218.85282 +0.43195575 -0.89816646
a 7.7863690 Node 205.86435 +0.86724319 +0.43857888
e 0.5649037 Incl. 10.82388 +0.24759540 +0.03075026
P 21.7
From 1225 observations 2002 Sept. 15-2025 Feb. 26, mean residual 0".7.
487P/Siding Spring
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Oct. 20.60628 TT Pike
q 1.8147970 (2000.0) P Q
n 0.08401011 Peri. 0.84719 +0.64462377 -0.59488296
a 5.1631533 Node 49.20542 +0.69763180 +0.20083599
e 0.6485100 Incl. 39.36618 +0.31268205 +0.77831817
P 11.7
From 1332 observations 2002 Feb. 13-2025 Feb. 25, mean residual 0".6.
492P/LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 July 20.45982 TT Pike
q 1.7819971 (2000.0) P Q
n 0.07128412 Peri. 40.98646 +0.61416758 -0.78822354
a 5.7606855 Node 11.30606 +0.66264544 +0.48840502
e 0.6906623 Incl. 11.40083 +0.42860145 +0.37438508
P 13.8
From 798 observations 2010 Aug. 10-2025 Feb. 25, mean residual 0".7.
496P/Hill
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Mar. 10.27849 TT Pike
q 1.6210430 (2000.0) P Q
n 0.06541706 Peri. 42.24557 -0.25280933 -0.94002528
a 6.1001715 Node 63.58685 +0.80517644 -0.33564559
e 0.7342627 Incl. 14.81442 +0.53644976 +0.06078252
P 15.1
From 1143 observations 2009 Oct. 14-2025 Feb. 27, mean residual 0".5.
Orbital elements:
10P/Tempel
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2026 Aug. 2.15781 TT Pike
q 1.4173611 (2000.0) P Q
n 0.18378925 Peri. 195.49500 +0.68058008 +0.70910809
a 3.0637688 Node 117.80101 -0.64812768 +0.70000343
e 0.5373799 Incl. 12.02742 -0.34167420 +0.08462225
P 5.36
From 4607 observations 2003 Mar. 7-2025 Feb. 27, mean residual 0".6.
Nongravitational parameters A1 = +0.02, A2 = +0.0006.
12P/Pons-Brooks
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Apr. 21.13728 TT Pike
q 0.7810660 (2000.0) P Q
n 0.01378752 Peri. 199.00486 +0.14500125 -0.32936024
a 17.2244472 Node 255.85640 +0.98570054 +0.12989814
e 0.9546536 Incl. 74.19010 +0.08584341 -0.93522634
P 71.5
From 4380 observations 2023 Oct. 1-2025 Feb. 22, mean residual 0".6.
Nongravitational parameters A1 = +0.71, A2 = -0.2263.
29P/Schwassmann-Wachmann
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2019 May 2.67769 TT Pike
q 5.7942010 (2000.0) P Q
n 0.06612299 Peri. 52.12738 +0.98912008 -0.08503869
a 6.0566767 Node 312.40419 +0.01494610 +0.86986233
e 0.0433366 Incl. 9.35598 +0.14634914 +0.48590940
P 14.9
From 15139 observations 2020 Jan. 1-2025 Feb. 27, mean residual 0".6.
Nongravitational parameters A1 = -1.60, A2 = +2.7155.
30P/Reinmuth
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Aug. 17.22436 TT Pike
q 1.8138464 (2000.0) P Q
n 0.13653302 Peri. 9.51011 -0.59678908 -0.79267060
a 3.7351748 Node 117.23369 +0.72667241 -0.59974893
e 0.5143878 Incl. 8.05325 +0.34027929 -0.10942822
P 7.22
From 1184 observations 2011 Apr. 12-2025 Feb. 26, mean residual 0".8.
33P/Daniel
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Nov. 10.90098 TT Pike
q 2.2425025 (2000.0) P Q
n 0.11906254 Peri. 20.25971 +0.08404213 -0.93397521
a 4.0921603 Node 66.28072 +0.85400381 -0.11208104
e 0.4520003 Incl. 22.29404 +0.51343395 +0.33930539
P 8.28
From 783 observations 1999 Nov. 13-2025 Feb. 27, mean residual 0".8.
Nongravitational parameters A1 = +0.50, A2 = +0.0463.
43P/Wolf-Harrington
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Aug. 4.74945 TT Pike
q 2.4428824 (2000.0) P Q
n 0.10928839 Peri. 223.81810 -0.29768093 -0.94347421
a 4.3326476 Node 243.99528 +0.91447156 -0.23797217
e 0.4361687 Incl. 9.33264 +0.27409455 -0.23070687
P 9.02
From 1051 observations 2023 Sept. 11-2025 Feb. 26, mean residual 0".5.
Nongravitational parameters A1 = +1.98, A2 = +1.0334.
49P/Arend-Rigaux
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Apr. 10.61229 TT Pike
q 1.4313490 (2000.0) P Q
n 0.14612107 Peri. 332.93083 -0.05191074 -0.95676829
a 3.5699391 Node 118.79106 +0.96515466 -0.12166339
e 0.5990551 Incl. 19.05942 +0.25647953 +0.26418262
P 6.75
From 4198 observations 2004 June 24-2025 Feb. 26, mean residual 0".6.
Nongravitational parameters A1 = -0.02, A2 = -0.0006.
50P/Arend
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 May 12.64358 TT Pike
q 1.9219582 (2000.0) P Q
n 0.11929353 Peri. 49.31606 +0.71019146 -0.70346370
a 4.0868759 Node 355.14517 +0.50576025 +0.53717076
e 0.5297244 Incl. 19.10024 +0.48972918 +0.46538843
P 8.26
From 1856 observations 1999 Aug. 3-2025 Feb. 27, mean residual 0".7.
Nongravitational parameters A1 = +0.23, A2 = -0.0102.
60P/Tsuchinshan
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 July 20.61965 TT Pike
q 1.6456692 (2000.0) P Q
n 0.14857998 Peri. 216.92039 -0.56259626 -0.82437536
a 3.5304429 Node 267.39634 +0.77265040 -0.49745464
e 0.5338632 Incl. 3.57988 +0.29410340 -0.27008176
P 6.63
From 1432 observations 2005 Oct. 5-2025 Feb. 23, mean residual 0".7.
62P/Tsuchinshan
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2023 Dec. 25.19035 TT Pike
q 1.2651220 (2000.0) P Q
n 0.15924505 Peri. 47.32940 -0.43595758 -0.89667365
a 3.3710000 Node 68.66588 +0.79966908 -0.42516742
e 0.6247042 Incl. 4.73707 +0.41288055 -0.12332487
P 6.19
From 1989 observations 2023 Aug. 29-2024 June 1, mean residual 0".5.
Nongravitational parameters A1 = +0.58, A2 = +0.4727.
88P/Howell
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2026 Mar. 18.79594 TT Pike
q 1.3576747 (2000.0) P Q
n 0.17984852 Peri. 235.88250 +0.38149036 +0.92216587
a 3.1083611 Node 56.66892 -0.82094604 +0.36973903
e 0.5632185 Incl. 4.38197 -0.42486787 +0.11359204
P 5.48
From 2522 observations 2015 July 7-2025 Feb. 27, mean residual 0".8.
Nongravitational parameters A1 = +0.67, A2 = +0.0116.
89P/Russell
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Mar. 26.60314 TT Pike
q 2.2222801 (2000.0) P Q
n 0.13568408 Peri. 250.41735 +0.35698874 +0.92383592
a 3.7507384 Node 41.34464 -0.75936612 +0.37314569
e 0.4075086 Incl. 12.07177 -0.54398725 +0.08537852
P 7.26
From 650 observations 1980 Aug. 9-2025 Jan. 1, mean residual 0".6.
Nongravitational parameters A1 = +0.83, A2 = -0.0351.
121P/Shoemaker-Holt
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2023 June 30.59796 TT Pike
q 3.7322161 (2000.0) P Q
n 0.10025861 Peri. 11.94756 -0.26387100 -0.90120963
a 4.5890375 Node 94.10531 +0.85415700 -0.38390276
e 0.1867105 Incl. 20.16207 +0.44809365 +0.20109668
P 9.83
From 195 observations 2012 Oct. 22-2025 Feb. 21, mean residual 0".3.
143P/Kowal-Mrkos
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2026 Dec. 25.34597 TT Pike
q 2.9416873 (2000.0) P Q
n 0.09431167 Peri. 304.31834 -0.98934249 +0.11845148
a 4.7799764 Node 242.61608 -0.08102826 -0.93107341
e 0.3845812 Incl. 5.47240 -0.12097874 -0.34506745
P 10.5
From 211 observations 2020 July 28-2025 Feb. 21, mean residual 0".2.
154P/Brewington
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 June 13.22374 TT Pike
q 1.5525494 (2000.0) P Q
n 0.09383322 Peri. 47.93555 +0.84757308 -0.52322941
a 4.7962113 Node 342.99641 +0.35150913 +0.67861760
e 0.6762967 Incl. 17.63752 +0.39756912 +0.51546983
P 10.5
From 2832 observations 2013 July 6-2025 Feb. 26, mean residual 0".7.
Nongravitational parameters A1 = +1.53, A2 = +0.3758.
195P/Hill
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Aug. 5.50105 TT Pike
q 4.4406023 (2000.0) P Q
n 0.06022674 Peri. 250.58478 -0.52644622 -0.66524891
a 6.4457951 Node 243.10080 +0.80973439 -0.58215336
e 0.3110854 Incl. 36.41746 -0.25919990 -0.46748406
P 16.4
From 845 observations 1993 Feb. 26-2025 Feb. 25, mean residual 0".6.
202P/Scotti
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 May 17.30285 TT Pike
q 3.0699030 (2000.0) P Q
n 0.11875358 Peri. 274.49602 -0.03138667 -0.99950577
a 4.0992547 Node 177.30072 +0.93121283 -0.02988176
e 0.2511070 Incl. 2.14178 +0.36312194 -0.00976223
P 8.30
From 459 observations 2001 Dec. 10-2025 Feb. 22, mean residual 0".7.
Nongravitational parameters A1 = +0.07, A2 = +0.0154.
234P/LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Oct. 23.67002 TT Pike
q 2.8208997 (2000.0) P Q
n 0.13316202 Peri. 357.44202 -0.99864323 -0.05205193
a 3.7979490 Node 179.56550 +0.05061987 -0.97717804
e 0.2572571 Incl. 11.53384 +0.01222011 -0.20594582
P 7.40
From 302 observations 2001 Dec. 26-2025 Feb. 26, mean residual 0".7.
242P/Spahr
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Dec. 23.32513 TT Pike
q 3.9716508 (2000.0) P Q
n 0.07563053 Peri. 244.96159 +0.41976862 -0.90762792
a 5.5378087 Node 180.25868 +0.89665445 +0.41427702
e 0.2828118 Incl. 32.42355 -0.14073059 -0.06772082
P 13.0
From 1044 observations 2011 July 20-2025 Feb. 26, mean residual 0".7.
250P/Larson
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 May 16.74393 TT Pike
q 2.2723282 (2000.0) P Q
n 0.13424061 Peri. 45.70929 -0.46702759 -0.85696232
a 3.7775779 Node 73.30400 +0.73260798 -0.51302137
e 0.3984695 Incl. 13.15224 +0.49514722 -0.04924091
P 7.34
From 531 observations 1995 Dec. 22-2025 Feb. 21, mean residual 0".6.
253P/PANSTARRS
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Oct. 21.02683 TT Pike
q 2.0266504 (2000.0) P Q
n 0.15281977 Peri. 230.84671 +0.95114022 -0.30513940
a 3.4648386 Node 146.84254 +0.30315043 +0.89394439
e 0.4150809 Incl. 4.94442 +0.05858418 +0.32825809
P 6.45
From 880 observations 1998 Sept. 14-2025 Jan. 28, mean residual 0".6.
Nongravitational parameters A1 = -0.09, A2 = -0.0059.
254P/McNaught
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2020 Sept. 28.57849 TT Pike
q 3.1485162 (2000.0) P Q
n 0.09925304 Peri. 219.73054 +0.90355082 +0.09876539
a 4.6199807 Node 129.17974 -0.09787574 +0.99491946
e 0.3185001 Incl. 32.53904 -0.41715255 -0.01951067
P 9.93
From 721 observations 2020 July 18-2025 Feb. 26, mean residual 0".5.
268P/Bernardi
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Dec. 18.48437 TT Pike
q 2.4126827 (2000.0) P Q
n 0.10018956 Peri. 0.01771 -0.58282493 -0.78241585
a 4.5911455 Node 125.63243 +0.74551066 -0.62227649
e 0.4744922 Incl. 15.66144 +0.32330937 +0.02444192
P 9.84
From 193 observations 2004 Sept. 22-2025 Feb. 27, mean residual 0".4.
Nongravitational parameters A1 = +3.93, A2 = -0.8580.
294P/LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Aug. 11.18991 TT Pike
q 1.2730672 (2000.0) P Q
n 0.17293880 Peri. 237.58187 -0.96121568 +0.14467397
a 3.1906151 Node 309.60042 +0.01110090 -0.83038529
e 0.6009963 Incl. 17.74262 -0.27557428 -0.53807965
P 5.70
From 48 observations 2020 June 24-2025 Feb. 26, mean residual 0".3.
310P/Hill
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2023 Oct. 23.15792 TT Pike
q 2.4162809 (2000.0) P Q
n 0.11528318 Peri. 31.52075 +0.76359608 -0.64474199
a 4.1811148 Node 8.88364 +0.53511556 +0.60151120
e 0.4220965 Incl. 13.12009 +0.36134798 +0.47169063
P 8.55
From 589 observations 2006 Aug. 29-2025 Feb. 23, mean residual 0".5.
333P/LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Nov. 29.29816 TT Pike
q 1.1129751 (2000.0) P Q
n 0.11367848 Peri. 26.01968 -0.12520560 +0.73231413
a 4.2203702 Node 115.70684 +0.73012385 -0.38878817
e 0.7362850 Incl. 132.02230 +0.67174602 +0.55907045
P 8.67
From 1171 observations 2016 Jan. 1-2025 Feb. 18, mean residual 0".6.
350P/McNaught
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2026 Mar. 17.33458 TT Pike
q 3.6944124 (2000.0) P Q
n 0.11955818 Peri. 140.04434 -0.89897157 +0.42223977
a 4.0808427 Node 65.29546 -0.42744897 -0.78769292
e 0.0946937 Incl. 7.36539 -0.09559027 -0.44861280
P 8.24
From 158 observations 2005 Nov. 1-2025 Feb. 26, mean residual 0".8.
Nongravitational parameters A1 = +4.09, A2 = -0.0062.
404P/Bressi
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2023 Oct. 31.98968 TT Pike
q 4.1325455 (2000.0) P Q
n 0.09614658 Peri. 169.01545 +0.35469039 -0.91981817
a 4.7189658 Node 260.04203 +0.84440771 +0.39215588
e 0.1242688 Incl. 9.80428 +0.40146026 -0.01217750
P 10.3
From 516 observations 2020 Nov. 8-2025 Feb. 26, mean residual 0".6.
450P/LONEOS
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2027 Jan. 29.45613 TT Pike
q 5.4486748 (2000.0) P Q
n 0.04400871 Peri. 23.14756 -0.83776367 -0.52426975
a 7.9452998 Node 124.34879 +0.46761387 -0.83317374
e 0.3142266 Incl. 10.65280 +0.28193847 -0.17596234
P 22.4
From 606 observations 2003 Oct. 25-2025 Feb. 26, mean residual 0".7.
471P
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2023 Dec. 19.88304 TT Pike
q 2.1202147 (2000.0) P Q
n 0.07250617 Peri. 94.80992 +0.94700441 -0.31074213
a 5.6957741 Node 283.31127 +0.25147944 +0.87482681
e 0.6277565 Incl. 4.79680 +0.19985177 +0.37164146
P 13.6
From 909 observations 1996 June 23-2025 Feb. 27, mean residual 0".5.
472P/NEAT-LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 July 14.31347 TT Pike
q 3.3878200 (2000.0) P Q
n 0.04536298 Peri. 218.85282 +0.43195575 -0.89816646
a 7.7863690 Node 205.86435 +0.86724319 +0.43857888
e 0.5649037 Incl. 10.82388 +0.24759540 +0.03075026
P 21.7
From 1225 observations 2002 Sept. 15-2025 Feb. 26, mean residual 0".7.
487P/Siding Spring
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Oct. 20.60628 TT Pike
q 1.8147970 (2000.0) P Q
n 0.08401011 Peri. 0.84719 +0.64462377 -0.59488296
a 5.1631533 Node 49.20542 +0.69763180 +0.20083599
e 0.6485100 Incl. 39.36618 +0.31268205 +0.77831817
P 11.7
From 1332 observations 2002 Feb. 13-2025 Feb. 25, mean residual 0".6.
492P/LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 July 20.45982 TT Pike
q 1.7819971 (2000.0) P Q
n 0.07128412 Peri. 40.98646 +0.61416758 -0.78822354
a 5.7606855 Node 11.30606 +0.66264544 +0.48840502
e 0.6906623 Incl. 11.40083 +0.42860145 +0.37438508
P 13.8
From 798 observations 2010 Aug. 10-2025 Feb. 25, mean residual 0".7.
496P/Hill
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Mar. 10.27849 TT Pike
q 1.6210430 (2000.0) P Q
n 0.06541706 Peri. 42.24557 -0.25280933 -0.94002528
a 6.1001715 Node 63.58685 +0.80517644 -0.33564559
e 0.7342627 Incl. 14.81442 +0.53644976 +0.06078252
P 15.1
From 1143 observations 2009 Oct. 14-2025 Feb. 27, mean residual 0".5.