Коррекция орбиты некоторых периодических комет от 21 августа ..
Добавлено: 03 окт 2026 18:18Коррекция орбиты некоторых периодических комет от 21 августа 2026 года, MPEC 2026-Q57
Orbital elements:
2P/Encke
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2027 Feb. 10.22901 TT Rudenko
q 0.3386646 (2000.0) P Q
n 0.29841143 Peri. 187.28404 -0.94614455 -0.31205866
a 2.2178172 Node 334.01955 +0.30607018 -0.77543513
e 0.8472982 Incl. 11.34798 +0.10550608 -0.54892599
P 3.30
From 3397 observations 2009 Aug. 15-2026 Aug. 19, mean residual 0".8.
Nongravitational parameters A1 = +0.01, A2 = -0.0001.
10P/Tempel
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Aug. 2.11493 TT Rudenko
q 1.4177375 (2000.0) P Q
n 0.18367898 Peri. 195.46786 +0.68019941 +0.70947234
a 3.0649948 Node 117.79750 -0.64849771 +0.69965558
e 0.5374421 Incl. 12.02726 -0.34173013 +0.08444565
P 5.37
From 6689 observations 2003 Mar. 7-2026 Aug. 21, mean residual 0".6.
Nongravitational parameters A1 = +0.03, A2 = +0.0008.
11P/Tempel-Swift-LINEAR
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Nov. 9.95583 TT Rudenko
q 1.3874512 (2000.0) P Q
n 0.16574006 Peri. 168.07003 +0.67740180 -0.70401582
a 3.2823462 Node 238.85275 +0.65276355 +0.70896363
e 0.5772989 Incl. 14.43051 +0.33915565 +0.04162092
P 5.95
From 1202 observations 2014 July 27-2026 Aug. 18, mean residual 0".5.
Nongravitational parameters A1 = +0.11, A2 = -0.0129.
65P/Gunn
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2025 June 16.18147 TT Rudenko
q 2.9258075 (2000.0) P Q
n 0.12841186 Peri. 213.61751 +0.09102836 +0.98585296
a 3.8910423 Node 61.96508 -0.87496068 +0.14666518
e 0.2480659 Incl. 9.17496 -0.47556035 -0.08113732
P 7.68
From 3206 observations 2013 Jan. 1-2026 Aug. 14, mean residual 0".7.
Nongravitational parameters A1 = -0.20, A2 = -0.0217.
78P/Gehrels
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 June 25.11370 TT Rudenko
q 2.0045100 (2000.0) P Q
n 0.13671976 Peri. 192.79860 +0.72853101 -0.68277608
a 3.7317727 Node 210.49401 +0.63770120 +0.70548663
e 0.4628531 Incl. 6.25766 +0.25015946 +0.19001433
P 7.21
From 2857 observations 2018 May 15-2026 Aug. 20, mean residual 0".6.
Nongravitational parameters A1 = -0.55, A2 = -0.0839.
84P/Giclas
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2027 Feb. 12.71866 TT Rudenko
q 1.7198513 (2000.0) P Q
n 0.14736237 Peri. 281.74008 +0.85951714 -0.49559919
a 3.5498635 Node 108.07995 +0.50501322 +0.78586440
e 0.5155162 Incl. 7.55262 +0.07868885 +0.36986294
P 6.69
From 1708 observations 1999 Sept. 12-2026 Aug. 19, mean residual 0".9.
Nongravitational parameters A1 = -0.01, A2 = +0.0007.
88P/Howell
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Mar. 18.74849 TT Rudenko
q 1.3577709 (2000.0) P Q
n 0.17979599 Peri. 235.85762 +0.38107015 +0.92233977
a 3.1089665 Node 56.66768 -0.82111469 +0.36936386
e 0.5632726 Incl. 4.38186 -0.42491905 +0.11340057
P 5.48
From 3004 observations 2015 July 7-2026 Aug. 20, mean residual 0".9.
Nongravitational parameters A1 = +0.92, A2 = +0.0077.
110P/Hartley
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2028 Aug. 22.61852 TT Rudenko
q 2.4529155 (2000.0) P Q
n 0.14410928 Peri. 167.61141 -0.09302003 -0.97665948
a 3.6030870 Node 287.48087 +0.89530764 +0.00302893
e 0.3192184 Incl. 11.71133 +0.43562772 -0.21477219
P 6.84
From 2576 observations 2013 Aug. 11-2026 Aug. 14, mean residual 0".6.
112P/Urata-Niijima
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Sept. 21.86596 TT Rudenko
q 1.4411645 (2000.0) P Q
n 0.14917453 Peri. 21.58530 +0.61355127 -0.75953577
a 3.5210560 Node 31.79420 +0.65115934 +0.33189791
e 0.5907011 Incl. 24.20403 +0.44670611 +0.55941862
P 6.61
From 530 observations 2006 Aug. 2-2026 Aug. 15, mean residual 0".7.
Nongravitational parameters A1 = +0.06, A2 = +0.0042.
114P/Wiseman-Skiff
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Sept. 15.00042 TT Rudenko
q 1.5707018 (2000.0) P Q
n 0.14808916 Peri. 172.85111 +0.10044467 -0.94409464
a 3.5382393 Node 271.02147 +0.89659117 +0.22270392
e 0.5560781 Incl. 18.30348 +0.43131792 -0.24308079
P 6.66
From 1886 observations 2006 July 21-2026 Aug. 15, mean residual 0".7.
137P/Shoemaker-Levy
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2028 July 29.71710 TT Rudenko
q 1.9343113 (2000.0) P Q
n 0.10238768 Peri. 141.18247 +0.96802085 -0.24159964
a 4.5251979 Node 232.93039 +0.20384278 +0.91448691
e 0.5725466 Incl. 4.85763 +0.14623184 +0.32456634
P 9.63
From 1234 observations 1990 Sept. 16-2026 June 16, mean residual 0".4.
139P/Vaisala-Oterma
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2027 July 23.32457 TT Rudenko
q 3.3924775 (2000.0) P Q
n 0.10285724 Peri. 166.11387 +0.66591960 -0.74515135
a 4.5114154 Node 242.11965 +0.68050943 +0.62653910
e 0.2480237 Incl. 2.33825 +0.30570901 +0.22846932
P 9.58
From 575 observations 1939 Oct. 7-2026 Aug. 16, mean residual 0".7.
161P/Hartley-IRAS
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Nov. 27.18544 TT Rudenko
q 1.2651079 (2000.0) P Q
n 0.04593490 Peri. 47.06756 +0.68281147 -0.73014558
a 7.7216045 Node 1.47511 -0.34141658 -0.34988290
e 0.8361600 Incl. 95.79086 +0.64591270 +0.58691515
P 21.5
From 352 observations 2004 Nov. 3-2026 Aug. 21, mean residual 0".7.
Nongravitational parameters A1 = +0.46, A2 = -0.1195.
162P/Siding Spring
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 May 17.84696 TT Rudenko
q 1.2895161 (2000.0) P Q
n 0.18136951 Peri. 357.25268 +0.87917416 -0.41319887
a 3.0909586 Node 30.86723 +0.44552643 +0.53618744
e 0.5828103 Incl. 27.55251 +0.16899406 +0.73605008
P 5.43
From 3249 observations 1990 Mar. 23-2026 Aug. 13, mean residual 0".4.
169P/NEAT
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Sept. 21.38828 TT Rudenko
q 0.6043162 (2000.0) P Q
n 0.23459513 Peri. 218.13641 +0.82654134 -0.56271331
a 2.6036947 Node 176.03438 +0.55245550 +0.80640015
e 0.7679005 Incl. 11.28481 +0.10780694 +0.18185856
P 4.20
From 2429 observations 1989 Mar. 7-2026 Aug. 19, mean residual 0".5.
220P/McNaught
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 June 14.12072 TT Rudenko
q 1.5593048 (2000.0) P Q
n 0.17877633 Peri. 180.56360 +0.87157110 +0.48518085
a 3.1207768 Node 150.08387 -0.44925861 +0.84790966
e 0.5003472 Incl. 8.12080 -0.19629194 +0.21365570
P 5.51
From 1546 observations 2004 May 20-2026 Aug. 21, mean residual 0".8.
235P/LINEAR
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2025 Dec. 22.70593 TT Rudenko
q 1.9779282 (2000.0) P Q
n 0.15404469 Peri. 352.21048 -0.97606675 +0.20938206
a 3.4464466 Node 200.16866 -0.18920898 -0.95083442
e 0.4260964 Incl. 9.81269 -0.10720846 -0.22819522
P 6.40
From 1752 observations 2024 Nov. 21-2026 Aug. 19, mean residual 0".7.
245P/WISE
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Mar. 31.10597 TT Rudenko
q 2.2055927 (2000.0) P Q
n 0.12071763 Peri. 316.69070 +0.09032595 +0.96457834
a 4.0546707 Node 316.66605 -0.78646569 -0.08359505
e 0.4560365 Incl. 21.17186 -0.61099341 +0.25020090
P 8.16
From 137 observations 2002 Aug. 27-2026 Aug. 15, mean residual 1".0.
260P/McNaught
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Aug. 5.00895 TT Rudenko
q 1.4179671 (2000.0) P Q
n 0.14290668 Peri. 18.51432 +0.98875723 -0.14151234
a 3.6232727 Node 349.27125 +0.08170751 +0.78187188
e 0.6086502 Incl. 15.03938 +0.12523187 +0.60716606
P 6.90
From 7103 observations 2005 May 20-2026 Aug. 20, mean residual 0".5.
Nongravitational parameters A1 = +0.01, A2 = -0.0019.
299P/Catalina-PANSTARRS
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2024 Apr. 29.78486 TT Rudenko
q 3.1540195 (2000.0) P Q
n 0.10725302 Peri. 323.54810 -0.56201507 +0.80694082
a 4.3872902 Node 271.56906 -0.70944371 -0.58317616
e 0.2811008 Incl. 10.46806 -0.42523956 -0.09355254
P 9.19
From 885 observations 2005 Mar. 11-2026 Aug. 21, mean residual 0".7.
311P/PANSTARRS
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2027 Mar. 29.88068 TT Rudenko
q 1.9363849 (2000.0) P Q
n 0.30435980 Peri. 144.34490 +0.44384659 -0.89201006
a 2.1888258 Node 279.16705 +0.80075907 +0.43766128
e 0.1153316 Incl. 4.97112 +0.40222520 +0.11300729
P 3.24
From 278 observations 2005 Jan. 17-2026 Aug. 14, mean residual 0".4.
320P/McNaught
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 June 27.78790 TT Rudenko
q 0.9752908 (2000.0) P Q
n 0.18090289 Peri. 0.75793 +0.44928788 +0.89007748
a 3.0962715 Node 295.94286 -0.82011548 +0.37680409
e 0.6850112 Incl. 4.90115 -0.35433177 +0.25647759
P 5.45
From 134 observations 2004 Sept. 2-2026 Aug. 15, mean residual 0".7.
Nongravitational parameters A1 = +0.01, A2 = -0.0027.
344P/Read
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2027 July 25.10363 TT Rudenko
q 2.7974295 (2000.0) P Q
n 0.09221054 Peri. 140.67421 +0.58986566 -0.80519810
a 4.8523153 Node 273.09456 +0.72463148 +0.56112595
e 0.4234856 Incl. 3.49927 +0.35632530 +0.19181679
P 10.7
From 540 observations 1951 Dec. 1-2026 Aug. 14, mean residual 0".7.
353P/McNaught
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 July 1.40296 TT Rudenko
q 2.2117884 (2000.0) P Q
n 0.11575950 Peri. 230.52623 +0.91092316 +0.07415126
a 4.1696375 Node 121.45696 -0.02637834 +0.99217119
e 0.4695490 Incl. 28.41031 -0.41173192 +0.10048839
P 8.51
From 134 observations 2008 May 30-2026 Aug. 19, mean residual 0".5.
491P/Spacewatch-PANSTARRS
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2024 Sept. 5.58005 TT Rudenko
q 3.7151672 (2000.0) P Q
n 0.08783396 Peri. 298.80165 -0.32532412 +0.93775765
a 5.0121926 Node 311.68355 -0.80091636 -0.34159554
e 0.2587740 Incl. 9.36696 -0.50268996 -0.06263446
P 11.2
From 529 observations 2013 May 4-2026 Aug. 20, mean residual 0".6.
Orbital elements:
2P/Encke
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2027 Feb. 10.22901 TT Rudenko
q 0.3386646 (2000.0) P Q
n 0.29841143 Peri. 187.28404 -0.94614455 -0.31205866
a 2.2178172 Node 334.01955 +0.30607018 -0.77543513
e 0.8472982 Incl. 11.34798 +0.10550608 -0.54892599
P 3.30
From 3397 observations 2009 Aug. 15-2026 Aug. 19, mean residual 0".8.
Nongravitational parameters A1 = +0.01, A2 = -0.0001.
10P/Tempel
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Aug. 2.11493 TT Rudenko
q 1.4177375 (2000.0) P Q
n 0.18367898 Peri. 195.46786 +0.68019941 +0.70947234
a 3.0649948 Node 117.79750 -0.64849771 +0.69965558
e 0.5374421 Incl. 12.02726 -0.34173013 +0.08444565
P 5.37
From 6689 observations 2003 Mar. 7-2026 Aug. 21, mean residual 0".6.
Nongravitational parameters A1 = +0.03, A2 = +0.0008.
11P/Tempel-Swift-LINEAR
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Nov. 9.95583 TT Rudenko
q 1.3874512 (2000.0) P Q
n 0.16574006 Peri. 168.07003 +0.67740180 -0.70401582
a 3.2823462 Node 238.85275 +0.65276355 +0.70896363
e 0.5772989 Incl. 14.43051 +0.33915565 +0.04162092
P 5.95
From 1202 observations 2014 July 27-2026 Aug. 18, mean residual 0".5.
Nongravitational parameters A1 = +0.11, A2 = -0.0129.
65P/Gunn
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2025 June 16.18147 TT Rudenko
q 2.9258075 (2000.0) P Q
n 0.12841186 Peri. 213.61751 +0.09102836 +0.98585296
a 3.8910423 Node 61.96508 -0.87496068 +0.14666518
e 0.2480659 Incl. 9.17496 -0.47556035 -0.08113732
P 7.68
From 3206 observations 2013 Jan. 1-2026 Aug. 14, mean residual 0".7.
Nongravitational parameters A1 = -0.20, A2 = -0.0217.
78P/Gehrels
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 June 25.11370 TT Rudenko
q 2.0045100 (2000.0) P Q
n 0.13671976 Peri. 192.79860 +0.72853101 -0.68277608
a 3.7317727 Node 210.49401 +0.63770120 +0.70548663
e 0.4628531 Incl. 6.25766 +0.25015946 +0.19001433
P 7.21
From 2857 observations 2018 May 15-2026 Aug. 20, mean residual 0".6.
Nongravitational parameters A1 = -0.55, A2 = -0.0839.
84P/Giclas
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2027 Feb. 12.71866 TT Rudenko
q 1.7198513 (2000.0) P Q
n 0.14736237 Peri. 281.74008 +0.85951714 -0.49559919
a 3.5498635 Node 108.07995 +0.50501322 +0.78586440
e 0.5155162 Incl. 7.55262 +0.07868885 +0.36986294
P 6.69
From 1708 observations 1999 Sept. 12-2026 Aug. 19, mean residual 0".9.
Nongravitational parameters A1 = -0.01, A2 = +0.0007.
88P/Howell
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Mar. 18.74849 TT Rudenko
q 1.3577709 (2000.0) P Q
n 0.17979599 Peri. 235.85762 +0.38107015 +0.92233977
a 3.1089665 Node 56.66768 -0.82111469 +0.36936386
e 0.5632726 Incl. 4.38186 -0.42491905 +0.11340057
P 5.48
From 3004 observations 2015 July 7-2026 Aug. 20, mean residual 0".9.
Nongravitational parameters A1 = +0.92, A2 = +0.0077.
110P/Hartley
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2028 Aug. 22.61852 TT Rudenko
q 2.4529155 (2000.0) P Q
n 0.14410928 Peri. 167.61141 -0.09302003 -0.97665948
a 3.6030870 Node 287.48087 +0.89530764 +0.00302893
e 0.3192184 Incl. 11.71133 +0.43562772 -0.21477219
P 6.84
From 2576 observations 2013 Aug. 11-2026 Aug. 14, mean residual 0".6.
112P/Urata-Niijima
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Sept. 21.86596 TT Rudenko
q 1.4411645 (2000.0) P Q
n 0.14917453 Peri. 21.58530 +0.61355127 -0.75953577
a 3.5210560 Node 31.79420 +0.65115934 +0.33189791
e 0.5907011 Incl. 24.20403 +0.44670611 +0.55941862
P 6.61
From 530 observations 2006 Aug. 2-2026 Aug. 15, mean residual 0".7.
Nongravitational parameters A1 = +0.06, A2 = +0.0042.
114P/Wiseman-Skiff
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Sept. 15.00042 TT Rudenko
q 1.5707018 (2000.0) P Q
n 0.14808916 Peri. 172.85111 +0.10044467 -0.94409464
a 3.5382393 Node 271.02147 +0.89659117 +0.22270392
e 0.5560781 Incl. 18.30348 +0.43131792 -0.24308079
P 6.66
From 1886 observations 2006 July 21-2026 Aug. 15, mean residual 0".7.
137P/Shoemaker-Levy
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2028 July 29.71710 TT Rudenko
q 1.9343113 (2000.0) P Q
n 0.10238768 Peri. 141.18247 +0.96802085 -0.24159964
a 4.5251979 Node 232.93039 +0.20384278 +0.91448691
e 0.5725466 Incl. 4.85763 +0.14623184 +0.32456634
P 9.63
From 1234 observations 1990 Sept. 16-2026 June 16, mean residual 0".4.
139P/Vaisala-Oterma
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2027 July 23.32457 TT Rudenko
q 3.3924775 (2000.0) P Q
n 0.10285724 Peri. 166.11387 +0.66591960 -0.74515135
a 4.5114154 Node 242.11965 +0.68050943 +0.62653910
e 0.2480237 Incl. 2.33825 +0.30570901 +0.22846932
P 9.58
From 575 observations 1939 Oct. 7-2026 Aug. 16, mean residual 0".7.
161P/Hartley-IRAS
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Nov. 27.18544 TT Rudenko
q 1.2651079 (2000.0) P Q
n 0.04593490 Peri. 47.06756 +0.68281147 -0.73014558
a 7.7216045 Node 1.47511 -0.34141658 -0.34988290
e 0.8361600 Incl. 95.79086 +0.64591270 +0.58691515
P 21.5
From 352 observations 2004 Nov. 3-2026 Aug. 21, mean residual 0".7.
Nongravitational parameters A1 = +0.46, A2 = -0.1195.
162P/Siding Spring
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 May 17.84696 TT Rudenko
q 1.2895161 (2000.0) P Q
n 0.18136951 Peri. 357.25268 +0.87917416 -0.41319887
a 3.0909586 Node 30.86723 +0.44552643 +0.53618744
e 0.5828103 Incl. 27.55251 +0.16899406 +0.73605008
P 5.43
From 3249 observations 1990 Mar. 23-2026 Aug. 13, mean residual 0".4.
169P/NEAT
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Sept. 21.38828 TT Rudenko
q 0.6043162 (2000.0) P Q
n 0.23459513 Peri. 218.13641 +0.82654134 -0.56271331
a 2.6036947 Node 176.03438 +0.55245550 +0.80640015
e 0.7679005 Incl. 11.28481 +0.10780694 +0.18185856
P 4.20
From 2429 observations 1989 Mar. 7-2026 Aug. 19, mean residual 0".5.
220P/McNaught
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 June 14.12072 TT Rudenko
q 1.5593048 (2000.0) P Q
n 0.17877633 Peri. 180.56360 +0.87157110 +0.48518085
a 3.1207768 Node 150.08387 -0.44925861 +0.84790966
e 0.5003472 Incl. 8.12080 -0.19629194 +0.21365570
P 5.51
From 1546 observations 2004 May 20-2026 Aug. 21, mean residual 0".8.
235P/LINEAR
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2025 Dec. 22.70593 TT Rudenko
q 1.9779282 (2000.0) P Q
n 0.15404469 Peri. 352.21048 -0.97606675 +0.20938206
a 3.4464466 Node 200.16866 -0.18920898 -0.95083442
e 0.4260964 Incl. 9.81269 -0.10720846 -0.22819522
P 6.40
From 1752 observations 2024 Nov. 21-2026 Aug. 19, mean residual 0".7.
245P/WISE
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Mar. 31.10597 TT Rudenko
q 2.2055927 (2000.0) P Q
n 0.12071763 Peri. 316.69070 +0.09032595 +0.96457834
a 4.0546707 Node 316.66605 -0.78646569 -0.08359505
e 0.4560365 Incl. 21.17186 -0.61099341 +0.25020090
P 8.16
From 137 observations 2002 Aug. 27-2026 Aug. 15, mean residual 1".0.
260P/McNaught
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 Aug. 5.00895 TT Rudenko
q 1.4179671 (2000.0) P Q
n 0.14290668 Peri. 18.51432 +0.98875723 -0.14151234
a 3.6232727 Node 349.27125 +0.08170751 +0.78187188
e 0.6086502 Incl. 15.03938 +0.12523187 +0.60716606
P 6.90
From 7103 observations 2005 May 20-2026 Aug. 20, mean residual 0".5.
Nongravitational parameters A1 = +0.01, A2 = -0.0019.
299P/Catalina-PANSTARRS
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2024 Apr. 29.78486 TT Rudenko
q 3.1540195 (2000.0) P Q
n 0.10725302 Peri. 323.54810 -0.56201507 +0.80694082
a 4.3872902 Node 271.56906 -0.70944371 -0.58317616
e 0.2811008 Incl. 10.46806 -0.42523956 -0.09355254
P 9.19
From 885 observations 2005 Mar. 11-2026 Aug. 21, mean residual 0".7.
311P/PANSTARRS
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2027 Mar. 29.88068 TT Rudenko
q 1.9363849 (2000.0) P Q
n 0.30435980 Peri. 144.34490 +0.44384659 -0.89201006
a 2.1888258 Node 279.16705 +0.80075907 +0.43766128
e 0.1153316 Incl. 4.97112 +0.40222520 +0.11300729
P 3.24
From 278 observations 2005 Jan. 17-2026 Aug. 14, mean residual 0".4.
320P/McNaught
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 June 27.78790 TT Rudenko
q 0.9752908 (2000.0) P Q
n 0.18090289 Peri. 0.75793 +0.44928788 +0.89007748
a 3.0962715 Node 295.94286 -0.82011548 +0.37680409
e 0.6850112 Incl. 4.90115 -0.35433177 +0.25647759
P 5.45
From 134 observations 2004 Sept. 2-2026 Aug. 15, mean residual 0".7.
Nongravitational parameters A1 = +0.01, A2 = -0.0027.
344P/Read
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2027 July 25.10363 TT Rudenko
q 2.7974295 (2000.0) P Q
n 0.09221054 Peri. 140.67421 +0.58986566 -0.80519810
a 4.8523153 Node 273.09456 +0.72463148 +0.56112595
e 0.4234856 Incl. 3.49927 +0.35632530 +0.19181679
P 10.7
From 540 observations 1951 Dec. 1-2026 Aug. 14, mean residual 0".7.
353P/McNaught
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2026 July 1.40296 TT Rudenko
q 2.2117884 (2000.0) P Q
n 0.11575950 Peri. 230.52623 +0.91092316 +0.07415126
a 4.1696375 Node 121.45696 -0.02637834 +0.99217119
e 0.4695490 Incl. 28.41031 -0.41173192 +0.10048839
P 8.51
From 134 observations 2008 May 30-2026 Aug. 19, mean residual 0".5.
491P/Spacewatch-PANSTARRS
Epoch 2026 June 9.0 TT = JDT 2461200.5
T 2024 Sept. 5.58005 TT Rudenko
q 3.7151672 (2000.0) P Q
n 0.08783396 Peri. 298.80165 -0.32532412 +0.93775765
a 5.0121926 Node 311.68355 -0.80091636 -0.34159554
e 0.2587740 Incl. 9.36696 -0.50268996 -0.06263446
P 11.2
From 529 observations 2013 May 4-2026 Aug. 20, mean residual 0".6.