Коррекция орбиты некоторых периодических комет от 11 апреля ..

[Gremlin]

Коррекция орбиты некоторых периодических комет от 11 апреля 2025 года, MPEC 2025-G119

Orbital elements:
10P/Tempel
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2026 Aug. 2.15780 TT Pike
q 1.4173611 (2000.0) P Q
n 0.18378925 Peri. 195.49500 +0.68058003 +0.70910813
a 3.0637688 Node 117.80101 -0.64812772 +0.70000338
e 0.5373799 Incl. 12.02742 -0.34167423 +0.08462222
P 5.36
From 4644 observations 2003 Mar. 7-2025 Apr. 4, 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. 21.13713 TT Pike
q 0.7810688 (2000.0) P Q
n 0.01378693 Peri. 199.00503 +0.14500152 -0.32936105
a 17.2249422 Node 255.85632 +0.98570075 +0.12989555
e 0.9546548 Incl. 74.19010 +0.08584048 -0.93522642
P 71.5
From 4388 observations 2023 Oct. 1-2025 Mar. 26, mean residual 0".6.
Nongravitational parameters A1 = +0.64, A2 = -0.2255.

13P/Olbers
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 June 30.07112 TT Pike
q 1.1754686 (2000.0) P Q
n 0.01418149 Peri. 64.42209 -0.60856423 -0.37158084
a 16.9039474 Node 85.84670 +0.18547726 -0.92571608
e 0.9304619 Incl. 44.66592 +0.77152302 -0.07055075
P 69.5
From 2175 observations 2023 Oct. 8-2025 Apr. 8, mean residual 0".5.
Nongravitational parameters A1 = +0.66, A2 = -0.0569.

29P/Schwassmann-Wachmann
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2019 May 2.63007 TT Pike
q 5.7941772 (2000.0) P Q
n 0.06612332 Peri. 52.12383 +0.98912544 -0.08497582
a 6.0566566 Node 312.40409 +0.01489062 +0.86986331
e 0.0433373 Incl. 9.35600 +0.14631860 +0.48591865
P 14.9
From 19059 observations 2019 Jan. 1-2025 Apr. 10, mean residual 0".6.
Nongravitational parameters A1 = -1.57, A2 = +2.2499.

30P/Reinmuth
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Aug. 17.22420 TT Pike
q 1.8138460 (2000.0) P Q
n 0.13653303 Peri. 9.51023 -0.59678890 -0.79267072
a 3.7351745 Node 117.23355 +0.72667242 -0.59974878
e 0.5143879 Incl. 8.05325 +0.34027960 -0.10942821
P 7.22
From 1229 observations 2011 Apr. 12-2025 Apr. 7, mean residual 0".8.

32P/Comas Sola
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Apr. 20.67988 TT Pike
q 2.0250732 (2000.0) P Q
n 0.10142429 Peri. 54.70283 -0.31950327 -0.93713992
a 4.5538082 Node 54.53206 +0.80383844 -0.34645227
e 0.5553012 Incl. 9.92017 +0.50175833 -0.04170855
P 9.72
From 3651 observations 2013 Sept. 24-2025 Apr. 7, mean residual 0".8.
Nongravitational parameters A1 = +1.21, A2 = -0.0955.

33P/Daniel
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Nov. 10.90106 TT Pike
q 2.2425026 (2000.0) P Q
n 0.11906253 Peri. 20.25973 +0.08404167 -0.93397522
a 4.0921603 Node 66.28073 +0.85400376 -0.11208150
e 0.4520003 Incl. 22.29404 +0.51343410 +0.33930521
P 8.28
From 805 observations 1999 Nov. 13-2025 Mar. 30, mean residual 0".8.
Nongravitational parameters A1 = +0.49, A2 = +0.0461.

37P/Forbes
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Oct. 11.23801 TT Pike
q 1.6177975 (2000.0) P Q
n 0.15301970 Peri. 330.05964 +0.25654542 +0.96015545
a 3.4618200 Node 314.54910 -0.85303283 +0.17100531
e 0.5326743 Incl. 8.94783 -0.45444410 +0.22104004
P 6.44
From 1749 observations 2011 Feb. 8-2025 Jan. 5, mean residual 0".7.
Nongravitational parameters A1 = +0.55, A2 = -0.0499.

40P/Vaisala
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Nov. 11.88667 TT Pike
q 1.8236898 (2000.0) P Q
n 0.08945439 Peri. 52.02899 -0.98725359 +0.02606259
a 4.9514792 Node 128.90022 -0.06880244 -0.95944723
e 0.6316879 Incl. 11.63906 +0.14351506 -0.28068086
P 11.0
From 46 observations 2024 Nov. 29-2025 Mar. 18, mean residual 0".5.

43P/Wolf-Harrington
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Aug. 4.75239 TT Pike
q 2.4427859 (2000.0) P Q
n 0.10927176 Peri. 223.82227 -0.29775199 -0.94345184
a 4.3330872 Node 243.99542 +0.91445344 -0.23804100
e 0.4362481 Incl. 9.33261 +0.27407783 -0.23072736
P 9.02
From 1130 observations 2023 Sept. 11-2025 Apr. 7, mean residual 0".5.
Nongravitational parameters A1 = -0.65, A2 = +1.3873.

47P/Ashbrook-Jackson
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Oct. 27.96638 TT Pike
q 2.8074798 (2000.0) P Q
n 0.11794881 Peri. 357.90776 +0.99592124 +0.08938914
a 4.1178799 Node 356.88319 -0.07915963 +0.80041078
e 0.3182220 Incl. 13.03831 -0.04329706 +0.59274967
P 8.36
From 1276 observations 2012 Feb. 15-2025 Apr. 7, mean residual 0".7.
Nongravitational parameters A1 = -0.10, A2 = -0.0097.

49P/Arend-Rigaux
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Apr. 10.61197 TT Pike
q 1.4313486 (2000.0) P Q
n 0.14612113 Peri. 332.93079 -0.05190972 -0.95676836
a 3.5699382 Node 118.79104 +0.96515476 -0.12166238
e 0.5990551 Incl. 19.05942 +0.25647938 +0.26418284
P 6.75
From 4313 observations 2004 June 24-2025 Apr. 4, mean residual 0".6.
Nongravitational parameters A1 = -0.02, A2 = -0.0007.

50P/Arend
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 May 12.64360 TT Pike
q 1.9219582 (2000.0) P Q
n 0.11929353 Peri. 49.31607 +0.71019133 -0.70346383
a 4.0868759 Node 355.14517 +0.50576035 +0.53717068
e 0.5297244 Incl. 19.10024 +0.48972926 +0.46538833
P 8.26
From 1869 observations 1999 Aug. 3-2025 Mar. 18, mean residual 0".7.
Nongravitational parameters A1 = +0.23, A2 = -0.0103.

65P/Gunn
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 June 16.49406 TT Pike
q 2.9262503 (2000.0) P Q
n 0.12836251 Peri. 213.67834 +0.09226502 +0.98573497
a 3.8920395 Node 61.97610 -0.87478624 +0.14777086
e 0.2481448 Incl. 9.17540 -0.47564292 -0.08056265
P 7.68
From 2981 observations 2013 Jan. 1-2025 Apr. 8, mean residual 0".6.
Nongravitational parameters A1 = -0.16, A2 = -0.0219.

74P/Smirnova-Chernykh
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2026 Aug. 18.81514 TT Pike
q 4.8204566 (2000.0) P Q
n 0.08754948 Peri. 70.90946 -0.55653354 -0.82627575
a 5.0230444 Node 53.21513 +0.71569736 -0.52986553
e 0.0403317 Incl. 6.22380 +0.42195700 -0.19107827
P 11.3
From 1865 observations 2018 Jan. 1-2025 Mar. 22, mean residual 0".5.
Nongravitational parameters A1 = -1.96, A2 = -0.4553.

88P/Howell
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2026 Mar. 18.79541 TT Pike
q 1.3576749 (2000.0) P Q
n 0.17984855 Peri. 235.88274 +0.38149024 +0.92216589
a 3.1083608 Node 56.66867 -0.82094567 +0.36973905
e 0.5632184 Incl. 4.38202 -0.42486869 +0.11359181
P 5.48
From 2649 observations 2015 July 7-2025 Apr. 3, mean residual 0".8.
Nongravitational parameters A1 = +0.67, A2 = +0.0113.

103P/Hartley
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2023 Oct. 12.43880 TT Pike
q 1.0651401 (2000.0) P Q
n 0.15211324 Peri. 181.32594 +0.75418739 -0.63918770
a 3.4755593 Node 219.75588 +0.60461805 +0.76534159
e 0.6935342 Incl. 13.60829 +0.25619991 +0.07544093
P 6.48
From 8869 observations 2004 Sept. 20-2025 Mar. 29, mean residual 0".7.
Nongravitational parameters A1 = +0.11, A2 = +0.0236.

105P/Singer Brewster
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Jan. 22.75679 TT Pike
q 2.0520896 (2000.0) P Q
n 0.15227597 Peri. 46.33262 -0.52109660 +0.85281237
a 3.4730828 Node 192.39458 -0.82173900 -0.51213162
e 0.4091446 Incl. 9.16728 -0.23065852 -0.10213845
P 6.47
From 472 observations 2018 Jan. 1-2025 Mar. 12, mean residual 0".7.
Nongravitational parameters A1 = -0.66, A2 = +0.1314.

121P/Shoemaker-Holt
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2023 June 30.59800 TT Pike
q 3.7322160 (2000.0) P Q
n 0.10025861 Peri. 11.94756 -0.26387112 -0.90120958
a 4.5890375 Node 94.10531 +0.85415695 -0.38390289
e 0.1867105 Incl. 20.16208 +0.44809367 +0.20109665
P 9.83
From 214 observations 2012 Oct. 22-2025 Mar. 24, mean residual 0".3.

130P/McNaught-Hughes
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Apr. 15.18098 TT Pike
q 1.8245100 (2000.0) P Q
n 0.15817491 Peri. 246.26363 +0.71989778 +0.68693411
a 3.3861873 Node 70.18131 -0.59214978 +0.68251850
e 0.4611905 Incl. 6.06150 -0.36208538 +0.24957969
P 6.23
From 2268 observations 2004 Apr. 20-2025 Feb. 17, mean residual 0".6.
Nongravitational parameters A1 = -0.02, A2 = +0.0007.

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 Mar. 6, mean residual 0".7.
Nongravitational parameters A1 = +1.53, A2 = +0.3758.

170P/Christensen
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2023 Apr. 15.81189 TT Pike
q 2.9145277 (2000.0) P Q
n 0.11471008 Peri. 224.76679 +0.98499784 -0.13561525
a 4.1950293 Node 142.63931 +0.15952237 +0.95142297
e 0.3052426 Incl. 10.12835 -0.06581701 +0.27641062
P 8.59
From 791 observations 2021 June 30-2025 Feb. 3, mean residual 0".6.

172P/Yeung
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Nov. 2.55364 TT Pike
q 3.3581313 (2000.0) P Q
n 0.11355731 Peri. 208.90004 -0.50802543 +0.85552901
a 4.2233718 Node 30.88261 -0.74812350 -0.38079004
e 0.2048696 Incl. 11.22328 -0.42687398 -0.35081201
P 8.68
From 401 observations 2012 Sept. 15-2025 Apr. 4, mean residual 0".3.

195P/Hill
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Aug. 5.50059 TT Pike
q 4.4406021 (2000.0) P Q
n 0.06022674 Peri. 250.58475 -0.52644592 -0.66524919
a 6.4457950 Node 243.10080 +0.80973468 -0.58215296
e 0.3110854 Incl. 36.41746 -0.25919962 -0.46748417
P 16.4
From 924 observations 1993 Feb. 26-2025 Apr. 7, mean residual 0".6.

213P/Van Ness
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2023 Nov. 13.01842 TT Pike
q 1.9817783 (2000.0) P Q
n 0.16035039 Peri. 6.37304 +0.73431763 +0.66496085
a 3.3554907 Node 310.99310 -0.63049947 +0.59370277
e 0.4093924 Incl. 10.41121 -0.25149163 +0.45314908
P 6.15
From 3102 observations 2005 Aug. 4-2024 Dec. 30, mean residual 0".7.

213P/Van Ness B
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2023 Nov. 12.88677 TT Rudenko
q 1.9821390 (2000.0) P Q
n 0.16035859 Peri. 6.39233 +0.73449872 +0.66476104
a 3.3553763 Node 310.98948 -0.63034154 +0.59388211
e 0.4092648 Incl. 10.41055 -0.25135866 +0.45320723
P 6.15
From 151 observations 2011 July 12-2024 Dec. 6, mean residual 1".5.

215P/NEAT
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2028 Nov. 24.39576 TT Pike
q 3.6205199 (2000.0) P Q
n 0.10917386 Peri. 262.26377 +0.73997084 +0.65492065
a 4.3356771 Node 56.67755 -0.52180077 +0.70279647
e 0.1649471 Incl. 10.57634 -0.42446097 +0.27776980
P 9.03
From 847 observations 2011 Aug. 31-2025 Apr. 1, mean residual 0".5.
Nongravitational parameters A1 = -0.17, A2 = -0.0016.

217P/LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 May 24.94402 TT Pike
q 1.2263740 (2000.0) P Q
n 0.12582731 Peri. 247.03579 +0.95779639 -0.22284766
a 3.9441440 Node 125.37158 +0.26640541 +0.92540811
e 0.6890646 Incl. 12.86548 -0.10795479 +0.30652691
P 7.83
From 3328 observations 2001 June 21-2025 Apr. 1, mean residual 0".6.
Nongravitational parameters A1 = +0.17, A2 = +0.0030.

230P/LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2022 Mar. 19.69110 TT Pike
q 1.5703949 (2000.0) P Q
n 0.15347118 Peri. 313.57804 +0.46722420 -0.84650486
a 3.4550274 Node 106.92750 +0.86843880 +0.38523739
e 0.5454754 Incl. 15.47190 +0.16587827 +0.36745295
P 6.42
From 1525 observations 1997 Jan. 10-2024 May 7, mean residual 0".5.

234P/LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Oct. 23.66998 TT Pike
q 2.8208996 (2000.0) P Q
n 0.13316202 Peri. 357.44202 -0.99864322 -0.05205201
a 3.7979490 Node 179.56550 +0.05061995 -0.97717803
e 0.2572571 Incl. 11.53384 +0.01222013 -0.20594583
P 7.40
From 301 observations 2001 Dec. 26-2025 Apr. 7, mean residual 0".7.

235P/LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Dec. 22.55159 TT Pike
q 1.9781245 (2000.0) P Q
n 0.15396675 Peri. 352.14109 -0.97626202 +0.20845815
a 3.4476096 Node 200.18401 -0.18829739 -0.95101033
e 0.4262330 Incl. 9.81237 -0.10703529 -0.22830803
P 6.40
From 41 observations 2024 Nov. 21-2025 Apr. 7, mean residual 0".5.

242P/Spahr
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Dec. 23.32502 TT Pike
q 3.9716507 (2000.0) P Q
n 0.07563053 Peri. 244.96157 +0.41976878 -0.90762785
a 5.5378086 Node 180.25868 +0.89665437 +0.41427717
e 0.2828119 Incl. 32.42355 -0.14073060 -0.06772089
P 13.0
From 1071 observations 2011 July 20-2025 Mar. 23, mean residual 0".7.

254P/McNaught
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2020 Sept. 28.57832 TT Pike
q 3.1485158 (2000.0) P Q
n 0.09925309 Peri. 219.73050 +0.90355079 +0.09876593
a 4.6199792 Node 129.17974 -0.09787634 +0.99491940
e 0.3185000 Incl. 32.53904 -0.41715247 -0.01951094
P 9.93
From 728 observations 2020 July 18-2025 Mar. 31, mean residual 0".5.

268P/Bernardi
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Dec. 18.47769 TT Pike
q 2.4126789 (2000.0) P Q
n 0.10018560 Peri. 0.01543 -0.58279477 -0.78243801
a 4.5912667 Node 125.63250 +0.74553478 -0.62224808
e 0.4745069 Incl. 15.66153 +0.32330812 +0.02445592
P 9.84
From 136 observations 2024 Nov. 8-2025 Apr. 4, mean residual 0".3.
Nongravitational parameters A1 = +0.82, A2 = -0.0099.

276P/Vorobjov
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Dec. 10.90785 TT Pike
q 3.8986513 (2000.0) P Q
n 0.07935015 Peri. 199.32273 +0.64023227 -0.75666622
a 5.3633675 Node 211.29103 +0.73410386 +0.65346715
e 0.2730964 Incl. 14.78119 +0.22626129 +0.02090226
P 12.4
From 1146 observations 2000 Dec. 19-2025 Mar. 16, mean residual 0".6.

309P/LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Mar. 28.95432 TT Pike
q 1.6700947 (2000.0) P Q
n 0.10771917 Peri. 49.91677 +0.50506271 -0.86154329
a 4.3746240 Node 10.13853 +0.67565642 +0.35753269
e 0.6182312 Incl. 17.02014 +0.53702892 +0.36043522
P 9.15
From 444 observations 2005 Aug. 31-2025 Mar. 25, mean residual 0".5.

350P/McNaught
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2026 Mar. 17.33302 TT Pike
q 3.6944113 (2000.0) P Q
n 0.11955826 Peri. 140.04427 -0.89897266 +0.42223707
a 4.0808409 Node 65.29537 -0.42744712 -0.78769354
e 0.0946936 Incl. 7.36548 -0.09558823 -0.44861425
P 8.24
From 170 observations 2005 Nov. 1-2025 Apr. 1, mean residual 0".8.
Nongravitational parameters A1 = +4.11, A2 = -0.0065.

363P/Lemmon
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Nov. 13.21974 TT Pike
q 1.7209603 (2000.0) P Q
n 0.14583655 Peri. 340.76035 -0.60982514 -0.79085910
a 3.5745808 Node 146.75871 +0.73890328 -0.59086506
e 0.5185560 Incl. 5.39386 +0.28659247 -0.15943765
P 6.76
From 58 observations 2017 Oct. 27-2025 Mar. 27, mean residual 0".3.

404P/Bressi
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2023 Oct. 31.98918 TT Pike
q 4.1325460 (2000.0) P Q
n 0.09614658 Peri. 169.01536 +0.35469140 -0.91981780
a 4.7189658 Node 260.04205 +0.84440726 +0.39215677
e 0.1242687 Incl. 9.80427 +0.40146031 -0.01217694
P 10.3
From 551 observations 2020 Nov. 8-2025 Mar. 29, mean residual 0".6.

408P/Novichonok-Gerke
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2022 Oct. 6.05583 TT Pike
q 3.4717689 (2000.0) P Q
n 0.09533595 Peri. 226.68789 +0.56393206 -0.82402665
a 4.7456777 Node 189.45101 +0.82057223 +0.56654705
e 0.2684356 Incl. 19.35198 +0.09296149 -0.00212702
P 10.3
From 1633 observations 2011 Sept. 7-2025 Mar. 27, mean residual 0".7.

450P/LONEOS
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2027 Jan. 29.45622 TT Pike
q 5.4486749 (2000.0) P Q
n 0.04400871 Peri. 23.14756 -0.83776371 -0.52426969
a 7.9452998 Node 124.34879 +0.46761382 -0.83317378
e 0.3142266 Incl. 10.65280 +0.28193845 -0.17596232
P 22.4
From 609 observations 2003 Oct. 25-2025 Mar. 18, mean residual 0".7.

472P/NEAT-LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 July 14.31502 TT Pike
q 3.3878187 (2000.0) P Q
n 0.04536299 Peri. 218.85313 +0.43195156 -0.89816850
a 7.7863684 Node 205.86430 +0.86724521 +0.43857475
e 0.5649039 Incl. 10.82386 +0.24759562 +0.03074947
P 21.7
From 1329 observations 2002 Sept. 15-2025 Apr. 3, mean residual 0".7.

476P/PANSTARRS
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Oct. 16.49763 TT Pike
q 3.1234007 (2000.0) P Q
n 0.09444236 Peri. 46.73455 -0.20498162 -0.93984213
a 4.7755658 Node 57.05117 +0.77691728 -0.32605405
e 0.3459622 Incl. 19.00523 +0.59529998 +0.10190939
P 10.4
From 48 observations 2023 Nov. 19-2025 Mar. 24, mean residual 0".4.
Nongravitational parameters A1 = +1.60, A2 = +1.5415.

487P/Siding Spring
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Oct. 20.60625 TT Pike
q 1.8147967 (2000.0) P Q
n 0.08401011 Peri. 0.84717 +0.64462394 -0.59488307
a 5.1631533 Node 49.20541 +0.69763173 +0.20083659
e 0.6485100 Incl. 39.36615 +0.31268185 +0.77831793
P 11.7
From 1395 observations 2002 Feb. 13-2025 Mar. 26, mean residual 0".6.

496P/Hill
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Mar. 10.27850 TT Pike
q 1.6210413 (2000.0) P Q
n 0.06541706 Peri. 42.24564 -0.25281058 -0.94002487
a 6.1001715 Node 63.58685 +0.80517587 -0.33564684
e 0.7342630 Incl. 14.81444 +0.53645002 +0.06078199
P 15.1
From 1394 observations 2009 Oct. 14-2025 Apr. 7, mean residual 0".5.

498P/LINEAR
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2024 Dec. 18.91738 TT Pike
q 1.9643285 (2000.0) P Q
n 0.10012059 Peri. 179.08150 -0.14507363 -0.95813285
a 4.5932539 Node 279.23092 +0.90617377 -0.02849796
e 0.5723449 Incl. 14.48278 +0.39724392 -0.28490229
P 9.84
From 369 observations 2014 Nov. 25-2025 Mar. 24, mean residual 0".5.

499P/Catalina
Epoch 2025 May 5.0 TT = JDT 2460800.5
T 2025 Mar. 4.39179 TT Pike
q 0.9310435 (2000.0) P Q
n 0.18802954 Peri. 2.55521 -0.78392023 -0.55848783
a 3.0175328 Node 139.30949 +0.56199793 -0.82397053
e 0.6914554 Incl. 24.58226 +0.26387003 +0.09572827
P 5.24
From 399 observations 2019 Nov. 1-2025 Apr. 6, mean residual 0".8.