Коррекция орбиты некоторых периодических комет от 23 сентября ..

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Коррекция орбиты некоторых периодических комет от 23 сентября 2025 года, MPEC 2025-S186

Orbital elements:
3I/ATLAS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Oct. 29.48388 TT Alexandersen
q 1.3563195 (2000.0) P Q
z -3.7886052 Peri. 128.01265 -0.96792431 -0.24574603
+/-0.0023688 Node 322.15741 -0.24883052 +0.90891168
e 6.1385592 Incl. 175.11310 -0.03472623 +0.33688046
From 3978 observations 2025 May 8-Sept. 23, mean residual 0".4.

47P/Ashbrook-Jackson
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Oct. 28.00474 TT Alexandersen
q 2.8074571 (2000.0) P Q
n 0.11800658 Peri. 357.91820 +0.99593402 +0.08924529
a 4.1165358 Node 356.88095 -0.07904902 +0.80041044
e 0.3180049 Incl. 13.03942 -0.04320509 +0.59277179
P 8.35
From 1846 observations 2012 Feb. 15-2025 Sept. 22, mean residual 0".7.
Nongravitational parameters A1 = -0.09, A2 = -0.0111.

78P/Gehrels
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 June 25.07351 TT Alexandersen
q 2.0045853 (2000.0) P Q
n 0.13666017 Peri. 192.78052 +0.72870944 -0.68258555
a 3.7328576 Node 210.49710 +0.63751406 +0.70565174
e 0.4629891 Incl. 6.25722 +0.25011673 +0.19008574
P 7.21
From 2677 observations 2018 May 15-2025 Sept. 22, mean residual 0".6.
Nongravitational parameters A1 = -0.83, A2 = -0.1665.

93P/Lovas
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 May 2.93864 TT Alexandersen
q 1.6884374 (2000.0) P Q
n 0.10778603 Peri. 75.03846 +0.57181950 -0.81704429
a 4.3728146 Node 339.54926 +0.64768433 +0.50489949
e 0.6138786 Incl. 12.21040 +0.50351512 +0.27841540
P 9.14
From 3484 observations 1980 Dec. 5-2025 Sept. 22, mean residual 0".5.
Nongravitational parameters A1 = +0.03, A2 = -0.0049.

128P/Shoemaker-Holt
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 July 16.92739 TT Alexandersen
q 3.0369637 (2000.0) P Q
n 0.10389890 Peri. 210.53902 +0.42588643 -0.90375611
a 4.4812111 Node 214.30694 +0.84476154 +0.41419354
e 0.3222895 Incl. 4.37146 +0.32403502 +0.10802133
P 9.49
From 967 observations 1987 Sept. 24-2025 Sept. 23, mean residual 0".9.

131P/Mueller
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Feb. 15.69406 TT Alexandersen
q 2.4078078 (2000.0) P Q
n 0.13995750 Peri. 179.26544 +0.83480546 -0.54582963
a 3.6739953 Node 214.13280 +0.50445949 +0.81068059
e 0.3446351 Incl. 7.36219 +0.22050048 +0.21181833
P 7.04
From 838 observations 1990 Sept. 15-2025 Sept. 20, mean residual 0".8.
Nongravitational parameters A1 = +0.74, A2 = -0.0428.

143P/Kowal-Mrkos
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Dec. 27.48842 TT Alexandersen
q 2.9564155 (2000.0) P Q
n 0.09482653 Peri. 304.64400 -0.98972705 +0.11622811
a 4.7626588 Node 242.15930 -0.07944012 -0.93123031
e 0.3792510 Incl. 5.40259 -0.11886816 -0.34539996
P 10.4
From 214 observations 2020 July 28-2025 Sept. 22, mean residual 0".2.

145P/Shoemaker-Levy
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Jan. 31.93480 TT Alexandersen
q 1.8897207 (2000.0) P Q
n 0.11745767 Peri. 10.41914 +0.79825083 -0.59585047
a 4.1293510 Node 26.76682 +0.53759999 +0.63886781
e 0.5423686 Incl. 11.27822 +0.27162818 +0.48663141
P 8.39
From 996 observations 1991 Sept. 12-2025 Sept. 23, mean residual 0".6.
Nongravitational parameters A1 = +0.03, A2 = -0.0164.

171P/Spahr
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Sept. 25.02842 TT Alexandersen
q 1.7663876 (2000.0) P Q
n 0.14713429 Peri. 347.07286 +0.00563261 -0.93055201
a 3.5535311 Node 101.69405 +0.94752292 -0.11206197
e 0.5029205 Incl. 21.95490 +0.31963822 +0.34859012
P 6.70
From 648 observations 2005 Sept. 1-2025 Sept. 22, mean residual 0".7.
Nongravitational parameters A1 = +0.37, A2 = -0.1824.

210P/Christensen
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Nov. 22.72696 TT Alexandersen
q 0.5244175 (2000.0) P Q
n 0.17541015 Peri. 345.94978 +0.17411098 -0.96846938
a 3.1605760 Node 93.79664 +0.91983812 +0.09535237
e 0.8340753 Incl. 10.28729 +0.35154403 +0.23016293
P 5.62
From 624 observations 2008 Dec. 8-2025 Sept. 22, mean residual 0".7.
Nongravitational parameters A1 = -0.02, A2 = +0.0043.

243P/NEAT
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Feb. 25.58996 TT Alexandersen
q 2.4479946 (2000.0) P Q
n 0.13170522 Peri. 283.78660 +0.97177645 -0.19490130
a 3.8259039 Node 87.57599 +0.23248466 +0.88680741
e 0.3601526 Incl. 7.64444 -0.04001773 +0.41902995
P 7.48
From 822 observations 2003 Aug. 1-2025 Sept. 22, mean residual 0".7.

261P/Larson
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 27.41663 TT Alexandersen
q 2.0142025 (2000.0) P Q
n 0.15124275 Peri. 67.36742 +0.99478389 +0.02559363
a 3.4888824 Node 291.05047 -0.06588338 +0.90022498
e 0.4226797 Incl. 6.07342 +0.07787415 +0.43467222
P 6.52
From 1139 observations 2005 July 3-2025 Sept. 22, mean residual 0".8.
Nongravitational parameters A1 = +0.25, A2 = +0.0846.

313P/Gibbs
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Dec. 2.78454 TT Alexandersen
q 2.4215849 (2000.0) P Q
n 0.17524027 Peri. 254.99822 +0.98286302 -0.02067765
a 3.1626182 Node 105.92544 +0.08352567 +0.93578285
e 0.2343101 Incl. 10.98108 -0.16432818 +0.35197002
P 5.62
From 199 observations 2003 Sept. 22-2025 Sept. 23, mean residual 0".6.

486P/Leonard
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Apr. 3.81446 TT Alexandersen
q 2.3089459 (2000.0) P Q
n 0.14268638 Peri. 93.93762 +0.68102418 +0.73185840
a 3.6270012 Node 219.02267 -0.68620958 +0.62627282
e 0.3634008 Incl. 2.20970 -0.25558263 +0.26863664
P 6.91
From 433 observations 2018 June 8-2025 Sept. 23, mean residual 0".7.

491P/Spacewatch-PANSTARRS
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2024 Sept. 5.78711 TT Alexandersen
q 3.7160003 (2000.0) P Q
n 0.08781944 Peri. 298.84525 -0.32461192 +0.93800442
a 5.0127451 Node 311.68346 -0.80117570 -0.34098727
e 0.2586896 Incl. 9.36695 -0.50273710 -0.06225262
P 11.2
From 420 observations 2013 May 4-2025 Sept. 22, mean residual 0".6.