Коррекция орбиты некоторых периодических комет от 21 октября ..

[Gremlin]

Коррекция орбиты некоторых периодических комет от 21 октября 2023 года, MPEC 2023-U159

Orbital elements:
2P/Encke
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Oct. 22.52792 TT Rudenko
q 0.3396001 (2000.0) P Q
n 0.29823172 Peri. 187.28597 -0.94616113 -0.31203231
a 2.2187081 Node 334.02025 +0.30601976 -0.77555658
e 0.8469379 Incl. 11.33672 +0.10550370 -0.54876937
P 3.30
From 3492 observations 2009 Aug. 22-2023 Oct. 13, mean residual 0".8.
Nongravitational parameters A1 = +0.01, A2 = -0.0001.

9P/Tempel
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2022 Mar. 6.54288 TT Rudenko
q 1.5468526 (2000.0) P Q
n 0.17537510 Peri. 180.16539 -0.36701679 +0.91455446
a 3.1609971 Node 68.30564 -0.85324477 -0.25820475
e 0.5106441 Incl. 10.54011 -0.37050241 -0.31132050
P 5.62
From 2403 observations 2015 Nov. 11-2023 Oct. 20, mean residual 0".5.
Nongravitational parameters A1 = -0.07, A2 = +0.0141.

10P/Tempel
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2021 Mar. 23.87245 TT Rudenko
q 1.4150708 (2000.0) P Q
n 0.18394030 Peri. 195.52975 +0.68116842 +0.70852739
a 3.0620912 Node 117.81381 -0.64755590 +0.70056878
e 0.5378744 Incl. 12.03282 -0.34158592 +0.08480748
P 5.36
From 4535 observations 2003 Mar. 7-2023 Oct. 16, mean residual 0".6.
Nongravitational parameters A1 = +0.02, A2 = +0.0006.

12P/Pons-Brooks
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 Apr. 21.12962 TT Rudenko
q 0.7808631 (2000.0) P Q
n 0.01382707 Peri. 198.98702 +0.14511940 -0.32930088
a 17.1915895 Node 255.85580 +0.98565799 +0.13020624
e 0.9545788 Incl. 74.19119 +0.08613184 -0.93520440
P 71.3
From 3952 observations 2023 Feb. 27-Oct. 20, mean residual 0".6.

13P/Olbers
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 June 30.03555 TT Rudenko
q 1.1752700 (2000.0) P Q
n 0.01418118 Peri. 64.40093 -0.60892801 -0.37148957
a 16.9041944 Node 85.87551 +0.18566106 -0.92576016
e 0.9304746 Incl. 44.64226 +0.77119171 -0.07045302
P 69.5
From 116 observations 1956 Jan. 13-2023 Oct. 20, mean residual 0".8.
Nongravitational parameters A1 = +0.52, A2 = +0.2107.

28P/Neujmin
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2021 Mar. 11.64580 TT Rudenko
q 1.5820218 (2000.0) P Q
n 0.05341458 Peri. 347.47721 +0.89908403 +0.43387573
a 6.9827987 Node 346.35379 -0.37731530 +0.70046846
e 0.7734402 Incl. 14.30853 -0.22199342 +0.56665314
P 18.5
From 952 observations 2017 Mar. 19-2023 Oct. 17, mean residual 0".3.

29P/Schwassmann-Wachmann
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2019 Apr. 28.46301 TT Rudenko
q 5.7814827 (2000.0) P Q
n 0.06622367 Peri. 51.58168 +0.98987751 -0.07560074
a 6.0505366 Node 312.40300 +0.00660515 +0.86993759
e 0.0444678 Incl. 9.36142 +0.14177052 +0.48733265
P 14.9
From 16855 observations 2018 June 18-2023 Oct. 18, mean residual 0".6.

30P/Reinmuth
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 Aug. 17.10214 TT Rudenko
q 1.8120907 (2000.0) P Q
n 0.13639208 Peri. 9.43753 -0.59708735 -0.79246835
a 3.7377475 Node 117.32667 +0.72654597 -0.59999409
e 0.5151918 Incl. 8.05075 +0.34002595 -0.10954910
P 7.23
From 779 observations 2011 Apr. 12-2023 Oct. 20, mean residual 0".8.

32P/Comas Sola
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 Apr. 20.56001 TT Rudenko
q 2.0243678 (2000.0) P Q
n 0.10124737 Peri. 54.66773 -0.31888771 -0.93735077
a 4.5591115 Node 54.52949 +0.80406540 -0.34592004
e 0.5559732 Incl. 9.91991 +0.50178627 -0.04138675
P 9.73
From 3494 observations 2004 July 20-2023 Oct. 18, mean residual 0".7.
Nongravitational parameters A1 = -0.31, A2 = -0.0992.

39P/Oterma
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 July 18.23679 TT Rudenko
q 5.7073746 (2000.0) P Q
n 0.05105248 Peri. 104.47437 +0.77047952 -0.63699172
a 7.1965578 Node 295.09968 +0.57392355 +0.70992835
e 0.2069299 Incl. 1.55367 +0.27744022 +0.30040520
P 19.3
From 21 observations 2019 July 3-2023 Oct. 20, mean residual 0".0.

43P/Wolf-Harrington
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2025 Aug. 5.60130 TT Rudenko
q 2.4404371 (2000.0) P Q
n 0.10969260 Peri. 224.03747 -0.30151767 -0.94225070
a 4.3219973 Node 244.00908 +0.91349003 -0.24167682
e 0.4353451 Incl. 9.33336 +0.27317222 -0.23185327
P 8.99
From 955 observations 2016 July 3-2023 Oct. 19, mean residual 0".6.
Nongravitational parameters A1 = +0.15, A2 = +0.5176.

62P/Tsuchinshan
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Dec. 25.07391 TT Rudenko
q 1.2650977 (2000.0) P Q
n 0.15884053 Peri. 47.27332 -0.43521397 -0.89703195
a 3.3767209 Node 68.67455 +0.80001474 -0.42451803
e 0.6253473 Incl. 4.73885 +0.41299542 -0.12295573
P 6.21
From 151 observations 2023 Aug. 29-Oct. 18, mean residual 0".6.
Nongravitational parameters A1 = +3.09, A2 = -15.5683.

71P/Clark
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Jan. 22.83656 TT Rudenko
q 1.5891006 (2000.0) P Q
n 0.17719600 Peri. 209.09886 -0.03205505 +0.98947149
a 3.1393045 Node 59.38898 -0.88236443 +0.03831133
e 0.4938049 Incl. 9.43832 -0.46947364 -0.13956505
P 5.56
From 1366 observations 2016 Feb. 12-2023 Oct. 20, mean residual 1".1.
Nongravitational parameters A1 = +2.89, A2 = -0.4846.

74P/Smirnova-Chernykh
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2028 May 16.88460 TT Rudenko
q 4.4834496 (2000.0) P Q
n 0.09513672 Peri. 136.93202 -0.97926844 +0.18096604
a 4.7523009 Node 53.71351 -0.20253185 -0.86634076
e 0.0565729 Incl. 6.48358 -0.00376515 -0.46551582
P 10.4
From 1779 observations 2018 Jan. 1-2023 Oct. 16, mean residual 0".5.
Nongravitational parameters A1 = -2.13, A2 = -0.3598.

103P/Hartley
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Oct. 12.51238 TT Rudenko
q 1.0640923 (2000.0) P Q
n 0.15210835 Peri. 181.30117 +0.75453089 -0.63878103
a 3.4756338 Node 219.75002 +0.60421654 +0.76567114
e 0.6938422 Incl. 13.61044 +0.25613574 +0.07554141
P 6.48
From 8033 observations 2004 Sept. 20-2023 Oct. 20, mean residual 0".6.
Nongravitational parameters A1 = +0.18, A2 = +0.0248.

117P/Helin-Roman-Alu
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2022 July 8.95405 TT Rudenko
q 3.0414843 (2000.0) P Q
n 0.11925404 Peri. 223.20632 +0.20166047 +0.97085960
a 4.0877781 Node 58.82269 -0.85237768 +0.23907494
e 0.2559566 Incl. 8.70436 -0.48247834 -0.01657719
P 8.26
From 4576 observations 2010 Nov. 3-2023 Oct. 18, mean residual 0".7.
Nongravitational parameters A1 = +0.41, A2 = +0.0446.

126P/IRAS
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 July 5.32124 TT Rudenko
q 1.7105153 (2000.0) P Q
n 0.07362999 Peri. 356.59219 +0.99600417 +0.08522983
a 5.6376686 Node 357.87027 -0.05500845 +0.35017773
e 0.6965917 Incl. 45.87328 -0.07035452 +0.93279764
P 13.4
From 1181 observations 2009 May 27-2023 Oct. 19, mean residual 0".6.
Nongravitational parameters A1 = +0.04, A2 = -0.0935.

143P/Kowal-Mrkos
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2027 Feb. 21.16484 TT Rudenko
q 2.4807396 (2000.0) P Q
n 0.11201673 Peri. 320.54355 -0.90370592 +0.42147015
a 4.2620067 Node 244.53766 -0.36869940 -0.85554180
e 0.4179410 Incl. 4.78764 -0.21766114 -0.30068445
P 8.80
From 736 observations 2015 Jan. 22-2023 Oct. 15, mean residual 0".4.

144P/Kushida
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 Jan. 25.76904 TT Rudenko
q 1.3987763 (2000.0) P Q
n 0.13135896 Peri. 216.32192 -0.15949810 -0.98530869
a 3.8326243 Node 242.92789 +0.92112408 -0.12629346
e 0.6350343 Incl. 3.93142 +0.35509263 -0.11496413
P 7.50
From 548 observations 2016 July 31-2023 Oct. 20, mean residual 0".7.
Nongravitational parameters A1 = +0.87, A2 = -0.0551.

150P/LONEOS
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 Mar. 12.43743 TT Rudenko
q 1.7457279 (2000.0) P Q
n 0.12945488 Peri. 246.09703 -0.88075392 -0.35104284
a 3.8701142 Node 272.05947 +0.45860714 -0.79965053
e 0.5489208 Incl. 18.54659 -0.11811871 -0.48716316
P 7.61
From 564 observations 1978 Mar. 6-2023 Oct. 15, mean residual 0".5.

152P/Helin-Lawrence
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2022 Jan. 14.61279 TT Rudenko
q 3.0983054 (2000.0) P Q
n 0.10391662 Peri. 164.20838 -0.23729951 +0.95618543
a 4.4807018 Node 91.82647 -0.90881587 -0.15617268
e 0.3085223 Incl. 9.87776 -0.34313649 -0.24762779
P 9.48
From 1230 observations 1993 Apr. 22-2023 Oct. 19, mean residual 0".9.
Nongravitational parameters A1 = +0.03, A2 = +0.0142.

158P/Kowal-LINEAR
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2022 Feb. 23.53431 TT Rudenko
q 4.8640525 (2000.0) P Q
n 0.07714113 Peri. 205.17900 +0.90215803 +0.42014104
a 5.4652753 Node 129.61977 -0.37116547 +0.87162753
e 0.1100078 Incl. 7.30478 -0.21987969 +0.25248158
P 12.8
From 177 observations 2021 June 8-2023 Oct. 14, mean residual 0".6.

170P/Christensen
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Apr. 18.93184 TT Rudenko
q 2.9233113 (2000.0) P Q
n 0.11398361 Peri. 225.31508 +0.98323493 -0.14832469
a 4.2128350 Node 142.83270 +0.17160820 +0.94934249
e 0.3060941 Incl. 10.11097 -0.06164171 +0.27703543
P 8.65
From 347 observations 2021 June 30-2023 Oct. 19, mean residual 0".5.

172P/Yeung
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2025 Nov. 3.94099 TT Rudenko
q 3.3561189 (2000.0) P Q
n 0.11374648 Peri. 209.14918 -0.50442879 +0.85765529
a 4.2186880 Node 30.87417 -0.74969445 -0.37763220
e 0.2044638 Incl. 11.22535 -0.42838047 -0.34902910
P 8.66
From 313 observations 2012 Sept. 15-2023 Oct. 16, mean residual 0".3.

179P/Jedicke
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2022 May 31.17952 TT Rudenko
q 4.1187457 (2000.0) P Q
n 0.06819196 Peri. 297.03928 +0.56002504 -0.76944529
a 5.9335410 Node 115.51536 +0.82798209 +0.50701774
e 0.3058537 Incl. 19.89615 +0.02859379 +0.38844170
P 14.5
From 466 observations 2006 Oct. 22-2023 Oct. 15, mean residual 0".6.

195P/Hill
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2025 July 27.68624 TT Rudenko
q 4.4538600 (2000.0) P Q
n 0.05943886 Peri. 249.52385 -0.51440371 -0.67496330
a 6.5026301 Node 243.10413 +0.82030135 -0.56711396
e 0.3150679 Incl. 36.37965 -0.24998903 -0.47202361
P 16.6
From 319 observations 1993 Feb. 26-2023 Oct. 16, mean residual 0".7.

197P/LINEAR
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2022 Dec. 7.77790 TT Rudenko
q 1.0635017 (2000.0) P Q
n 0.20268762 Peri. 188.82091 -0.26984672 +0.87823042
a 2.8702379 Node 66.33874 -0.85506782 -0.03000625
e 0.6294726 Incl. 25.53566 -0.44276605 -0.47729545
P 4.86
From 366 observations 2003 May 23-2023 Oct. 17, mean residual 0".9.
Nongravitational parameters A1 = -0.00, A2 = +0.0018.

199P/Shoemaker
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Aug. 7.58828 TT Rudenko
q 2.9103863 (2000.0) P Q
n 0.06911194 Peri. 191.77573 +0.22499997 +0.87857507
a 5.8807674 Node 92.34771 -0.85623562 +0.38463443
e 0.5051009 Incl. 24.93809 -0.46501137 -0.28312928
P 14.3
From 215 observations 2022 Feb. 3-2023 Oct. 16, mean residual 0".6.
Nongravitational parameters A1 = +0.58, A2 = -0.0341.

202P/Scotti
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 May 17.15734 TT Rudenko
q 3.0692121 (2000.0) P Q
n 0.11809437 Peri. 274.44214 -0.03118283 -0.99951220
a 4.1144955 Node 177.34295 +0.93122074 -0.02968194
e 0.2540490 Incl. 2.14194 +0.36311922 -0.00971354
P 8.35
From 441 observations 2001 Dec. 10-2023 Oct. 15, mean residual 0".7.
Nongravitational parameters A1 = +0.07, A2 = +0.0159.

207P/NEAT
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 Jan. 31.81006 TT Rudenko
q 0.9381207 (2000.0) P Q
n 0.12882658 Peri. 272.98744 -0.35585951 -0.93290774
a 3.8826872 Node 198.16066 +0.91228112 -0.33396253
e 0.7583837 Incl. 10.20128 +0.20274904 -0.13473003
P 7.65
From 221 observations 2000 Oct. 7-2023 Oct. 19, mean residual 0".8.

212P/NEAT
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 Apr. 25.09246 TT Rudenko
q 1.6121441 (2000.0) P Q
n 0.12782089 Peri. 14.01696 -0.35710991 -0.85623683
a 3.9030264 Node 97.99510 +0.81656622 -0.48021288
e 0.5869503 Incl. 22.14393 +0.45353294 +0.19040504
P 7.71
From 152 observations 2000 Dec. 1-2023 Oct. 19, mean residual 0".8.

216P/LINEAR
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 Jan. 6.85721 TT Rudenko
q 2.1270884 (2000.0) P Q
n 0.13010869 Peri. 151.72765 -0.87904690 -0.47673498
a 3.8571380 Node 359.79744 +0.40232576 -0.74121679
e 0.4485319 Incl. 9.06335 +0.25575483 -0.47256897
P 7.58
From 187 observations 2001 Feb. 1-2023 Sept. 29, mean residual 0".8.

219P/LINEAR
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 Feb. 13.77653 TT Rudenko
q 2.3548985 (2000.0) P Q
n 0.14160927 Peri. 107.61024 +0.91586467 +0.37020631
a 3.6453698 Node 230.95407 -0.40001072 +0.87455857
e 0.3540028 Incl. 11.53995 +0.03439944 +0.31320057
P 6.96
From 1105 observations 2002 June 5-2023 Oct. 15, mean residual 0".8.
Nongravitational parameters A1 = +0.87, A2 = -0.1106.

225P/LINEAR
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Aug. 8.04385 TT Rudenko
q 1.3188065 (2000.0) P Q
n 0.14138809 Peri. 3.91000 +0.95158827 -0.29408782
a 3.6491705 Node 14.20428 +0.27120687 +0.66643831
e 0.6386010 Incl. 21.36623 +0.14466031 +0.68510754
P 6.97
From 518 observations 2002 Sept. 29-2023 Oct. 20, mean residual 0".6.
Nongravitational parameters A1 = +0.03, A2 = -0.0019.

226P/Pigott-LINEAR-Kowalski
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Dec. 27.24134 TT Rudenko
q 1.7737104 (2000.0) P Q
n 0.13482058 Peri. 341.07616 +0.74446884 -0.35961394
a 3.7667366 Node 54.01285 +0.66626359 +0.34573933
e 0.5291122 Incl. 44.04447 +0.04311586 +0.86668456
P 7.31
From 1046 observations 2016 May 19-2023 Oct. 17, mean residual 0".7.
Nongravitational parameters A1 = +0.00, A2 = +0.0000.

237P/LINEAR
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 May 14.69014 TT Rudenko
q 1.9870706 (2000.0) P Q
n 0.14986531 Peri. 25.26613 -0.00062716 +0.97546613
a 3.5102279 Node 245.35979 -0.95368748 -0.06680388
e 0.4339198 Incl. 14.01659 -0.30079859 +0.20976910
P 6.58
From 2191 observations 2002 June 18-2023 Oct. 20, mean residual 0".7.

238P/Read
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2022 June 5.37891 TT Rudenko
q 2.3697966 (2000.0) P Q
n 0.17501167 Peri. 324.20913 +0.96193446 -0.27273247
a 3.1653716 Node 51.62702 +0.25558188 +0.87542989
e 0.2513370 Incl. 1.26401 +0.09674706 +0.39904826
P 5.63
From 334 observations 2005 Oct. 23-2023 Oct. 16, mean residual 0".6.
Nongravitational parameters A1 = +0.18, A2 = -0.0072.

242P/Spahr
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 Dec. 24.57555 TT Rudenko
q 3.9707459 (2000.0) P Q
n 0.07602164 Peri. 245.00512 +0.41746895 -0.90868424
a 5.5187990 Node 180.37916 +0.89761098 +0.41176632
e 0.2805054 Incl. 32.49008 -0.14147157 -0.06885821
P 13.0
From 500 observations 2011 July 20-2023 Oct. 17, mean residual 0".7.

244P/Scotti
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2022 Nov. 17.91782 TT Rudenko
q 3.9206834 (2000.0) P Q
n 0.09091200 Peri. 93.18922 +0.04893851 -0.99879330
a 4.8984113 Node 354.00104 +0.90001496 +0.04588642
e 0.1996010 Incl. 2.25917 +0.43310286 +0.01750389
P 10.8
From 1786 observations 2000 Nov. 29-2023 Oct. 16, mean residual 0".7.
Nongravitational parameters A1 = +0.07, A2 = -0.0148.

246P/NEAT
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2021 Mar. 1.77738 TT Rudenko
q 2.8741860 (2000.0) P Q
n 0.12090293 Peri. 179.48779 -0.23756929 +0.93225917
a 4.0505267 Node 76.74851 -0.89220897 -0.09835068
e 0.2904167 Incl. 16.27967 -0.38408850 -0.34816660
P 8.15
From 4919 observations 2003 Mar. 7-2023 Oct. 20, mean residual 0".6.
Nongravitational parameters A1 = +1.00, A2 = +0.4424.

276P/Vorobjov
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 Dec. 11.99374 TT Rudenko
q 3.8984354 (2000.0) P Q
n 0.08009010 Peri. 199.40806 +0.63847560 -0.75806848
a 5.3302815 Node 211.33996 +0.73561023 +0.65187412
e 0.2686249 Incl. 14.81243 +0.22633273 +0.01980694
P 12.3
From 314 observations 2000 Dec. 19-2023 Oct. 19, mean residual 0".5.

279P/La Sagra
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Apr. 19.50003 TT Rudenko
q 2.1479022 (2000.0) P Q
n 0.14573204 Peri. 5.84016 +0.99030974 +0.13728348
a 3.5762897 Node 346.21593 -0.13071401 +0.87040462
e 0.3994049 Incl. 5.04995 -0.04690911 +0.47280974
P 6.76
From 269 observations 2002 July 12-2023 Oct. 14, mean residual 0".7.

309P/LINEAR
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 Mar. 29.04099 TT Rudenko
q 1.6696031 (2000.0) P Q
n 0.10770930 Peri. 49.93381 +0.50472551 -0.86173852
a 4.3748911 Node 10.14426 +0.67577813 +0.35722656
e 0.6183669 Incl. 17.02374 +0.53719278 +0.36027199
P 9.15
From 418 observations 2005 Aug. 31-2023 Oct. 18, mean residual 0".6.

310P/Hill
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Oct. 23.71902 TT Rudenko
q 2.4166813 (2000.0) P Q
n 0.11497712 Peri. 31.62290 +0.76202872 -0.64658517
a 4.1885312 Node 8.92128 +0.53662599 +0.60013355
e 0.4230242 Incl. 13.12386 +0.36241519 +0.47092179
P 8.57
From 359 observations 2006 Aug. 29-2023 Oct. 20, mean residual 0".6.

311P/PANSTARRS
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 Jan. 2.14184 TT Rudenko
q 1.9351262 (2000.0) P Q
n 0.30431522 Peri. 144.33237 +0.44366828 -0.89210200
a 2.1890395 Node 279.19105 +0.80084070 +0.43748413
e 0.1159930 Incl. 4.96949 +0.40225941 +0.11296755
P 3.24
From 238 observations 2005 Jan. 17-2023 Oct. 16, mean residual 0".4.

326P/Hill
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Dec. 30.50007 TT Rudenko
q 2.7697254 (2000.0) P Q
n 0.12025030 Peri. 278.65755 +0.94763421 -0.31651911
a 4.0651690 Node 99.80332 +0.30733849 +0.86770877
e 0.3186691 Incl. 2.47110 +0.08678971 +0.38327162
P 8.20
From 279 observations 1990 Sept. 24-2023 Oct. 20, mean residual 0".7.

347P/PANSTARRS
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 July 20.04082 TT Rudenko
q 2.2125083 (2000.0) P Q
n 0.14387580 Peri. 98.43539 +0.97946500 +0.01276629
a 3.6069840 Node 261.00723 -0.08610657 +0.92888451
e 0.3866044 Incl. 11.75421 +0.18230186 +0.37014942
P 6.85
From 231 observations 2002 July 12-2023 Oct. 17, mean residual 0".5.

358P/PANSTARRS
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Nov. 10.91594 TT Rudenko
q 2.3948081 (2000.0) P Q
n 0.17639853 Peri. 299.72757 +0.88712739 -0.42001552
a 3.1487590 Node 85.68917 +0.46115899 +0.79020502
e 0.2394438 Incl. 11.05977 +0.01836779 +0.44627682
P 5.59
From 216 observations 2001 Dec. 9-2023 Oct. 20, mean residual 0".5.
Nongravitational parameters A1 = -2.21, A2 = -0.0320.

364P/PANSTARRS
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 May 14.02139 TT Rudenko
q 0.8013507 (2000.0) P Q
n 0.20168573 Peri. 212.02800 -0.21346335 +0.96511311
a 2.8797355 Node 46.14753 -0.84612176 -0.10505177
e 0.7217277 Incl. 12.13766 -0.48837626 -0.23983495
P 4.89
From 1507 observations 2013 Feb. 1-2023 Oct. 18, mean residual 0".7.
Nongravitational parameters A1 = +0.00, A2 = -0.0004.

378P/McNaught
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2020 Oct. 14.18420 TT Rudenko
q 3.3660585 (2000.0) P Q
n 0.06219937 Peri. 193.50932 +0.28702850 +0.90061072
a 6.3087800 Node 93.93939 -0.84567655 +0.39826454
e 0.4664486 Incl. 19.09523 -0.44993979 -0.17402781
P 15.8
From 687 observations 2003 May 30-2023 Oct. 15, mean residual 0".6.

395P/Catalina-NEAT
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2022 Feb. 1.98435 TT Rudenko
q 4.1236481 (2000.0) P Q
n 0.05289264 Peri. 96.66244 +0.74013189 +0.67124979
a 7.0286607 Node 221.18506 -0.63865134 +0.68286329
e 0.4133096 Incl. 3.51348 -0.21054511 +0.28830792
P 18.6
From 918 observations 2005 May 12-2023 Oct. 18, mean residual 0".6.

420P/Hill
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2022 May 20.86483 TT Rudenko
q 2.7814673 (2000.0) P Q
n 0.07602720 Peri. 156.69561 +0.87235242 +0.48814952
a 5.5185298 Node 173.88074 -0.47861939 +0.86389297
e 0.4959768 Incl. 14.48912 -0.09962300 +0.12409266
P 13.0
From 193 observations 2009 Aug. 16-2023 Oct. 17, mean residual 0".9.

459P/Catalina
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Feb. 21.39207 TT Rudenko
q 1.3681507 (2000.0) P Q
n 0.16907080 Peri. 205.18861 -0.20778562 -0.97058070
a 3.2390947 Node 256.99413 +0.91726880 -0.15013801
e 0.5776132 Incl. 7.17214 +0.33976917 -0.18823307
P 5.83
From 641 observations 2017 Jan. 3-2023 June 14, mean residual 0".5.

466P/PANSTARRS
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 May 3.69493 TT Rudenko
q 2.1547472 (2000.0) P Q
n 0.12126528 Peri. 196.71431 +0.72067136 +0.66847191
a 4.0424537 Node 119.86587 -0.60936055 +0.73720195
e 0.4669705 Incl. 12.23574 -0.33062443 +0.09837983
P 8.13
From 192 observations 2015 Sept. 17-2023 Oct. 15, mean residual 0".6.

468P/Siding Spring
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Nov. 20.99735 TT Rudenko
q 3.9499019 (2000.0) P Q
n 0.05183177 Peri. 322.54521 +0.76585014 +0.64090507
a 7.1242426 Node 356.12546 -0.21721149 +0.18159405
e 0.4455689 Incl. 50.44460 -0.60522123 +0.74583128
P 19.0
From 128 observations 2004 Nov. 3-2023 Oct. 17, mean residual 0".5.

470P/PANSTARRS
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Dec. 18.40681 TT Rudenko
q 2.7285940 (2000.0) P Q
n 0.10415449 Peri. 152.07824 +0.77999388 -0.60979886
a 4.4738770 Node 246.19373 +0.54172773 +0.77040607
e 0.3901053 Incl. 8.83695 +0.31327402 +0.18606407
P 9.46
From 138 observations 2014 Nov. 17-2023 Oct. 18, mean residual 0".4.

471P
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Dec. 20.30768 TT Rudenko
q 2.1234116 (2000.0) P Q
n 0.07232118 Peri. 94.95795 +0.94601296 -0.31377592
a 5.7054826 Node 283.34672 +0.25431735 +0.87399264
e 0.6278296 Incl. 4.79103 +0.20095313 +0.37105464
P 13.6
From 427 observations 1996 June 23-2023 Oct. 20, mean residual 0".4.