Коррекция орбиты некоторых периодических комет от 11 сентября ..

[Gremlin]

Коррекция орбиты некоторых периодических комет от 11 сентября 2024 года, MPEC 2024-R266

Orbital elements:
2P/Encke
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2023 Oct. 22.53425 TT Rudenko
q 0.3394134 (2000.0) P Q
n 0.29830637 Peri. 187.28280 -0.94611098 -0.31217306
a 2.2183379 Node 334.01452 +0.30615328 -0.77548149
e 0.8469965 Incl. 11.33981 +0.10556604 -0.54879544
P 3.30
From 3591 observations 2009 Aug. 22-2024 Sept. 7, mean residual 0".8.
Nongravitational parameters A1 = +0.01, A2 = -0.0001.

12P/Pons-Brooks
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Apr. 21.12545 TT Rudenko
q 0.7808137 (2000.0) P Q
n 0.01382996 Peri. 198.99025 +0.14511003 -0.32929539
a 17.1891936 Node 255.85555 +0.98566415 +0.13015039
e 0.9545753 Incl. 74.19215 +0.08607710 -0.93521410
P 71.3
From 4471 observations 2023 Oct. 1-2024 Sept. 1, mean residual 0".6.
Nongravitational parameters A1 = +0.74, A2 = -0.2277.

13P/Olbers
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 June 30.04992 TT Rudenko
q 1.1754716 (2000.0) P Q
n 0.01423377 Peri. 64.41661 -0.60853162 -0.37163262
a 16.8625268 Node 85.84711 +0.18556161 -0.92570085
e 0.9302909 Incl. 44.66596 +0.77152845 -0.07047784
P 69.2
From 1970 observations 2023 Oct. 8-2024 Sept. 9, mean residual 0".5.
Nongravitational parameters A1 = +0.68, A2 = -0.2475.

26P/Grigg-Skjellerup
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2023 Dec. 25.32939 TT Rudenko
q 1.0837953 (2000.0) P Q
n 0.18824034 Peri. 2.13621 -0.83368182 +0.51491069
a 3.0152796 Node 211.53773 -0.51216504 -0.85608908
e 0.6405656 Incl. 22.43329 -0.20654684 +0.04448004
P 5.24
From 267 observations 2013 Jan. 3-2024 Sept. 10, mean residual 0".7.
Nongravitational parameters A1 = +0.01, A2 = -0.0003.

29P/Schwassmann-Wachmann
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2019 May 4.10405 TT Rudenko
q 5.7900376 (2000.0) P Q
n 0.06615288 Peri. 52.12741 +0.98911581 -0.08506822
a 6.0548523 Node 312.40576 +0.01496229 +0.86985301
e 0.0437360 Incl. 9.35734 +0.14637635 +0.48592091
P 14.9
From 19422 observations 2018 June 18-2024 Sept. 8, mean residual 0".6.

37P/Forbes
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Oct. 11.25323 TT Rudenko
q 1.6178297 (2000.0) P Q
n 0.15295921 Peri. 330.06699 +0.25667465 +0.96012139
a 3.4627327 Node 314.54947 -0.85301054 +0.17112260
e 0.5327882 Incl. 8.94756 -0.45441296 +0.22109721
P 6.44
From 1658 observations 2011 Feb. 8-2024 Sept. 5, mean residual 0".7.
Nongravitational parameters A1 = +0.59, A2 = -0.0507.

43P/Wolf-Harrington
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2025 Aug. 5.02245 TT Rudenko
q 2.4425722 (2000.0) P Q
n 0.10940442 Peri. 223.88852 -0.29885747 -0.94309790
a 4.3295835 Node 243.99650 +0.91417926 -0.23910737
e 0.4358413 Incl. 9.33434 +0.27378913 -0.23107145
P 9.01
From 115 observations 2023 Sept. 11-2024 Sept. 5, mean residual 0".4.
Nongravitational parameters A1 = -2.73, A2 = +10.7827.

48P/Johnson
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2025 Mar. 2.63312 TT Rudenko
q 2.0065466 (2000.0) P Q
n 0.15051253 Peri. 216.77470 +0.82443201 +0.53000136
a 3.5001577 Node 110.06407 -0.45578682 +0.82969984
e 0.4267268 Incl. 12.20132 -0.33551488 +0.17520485
P 6.55
From 1002 observations 2018 Feb. 16-2024 Sept. 8, mean residual 0".6.
Nongravitational parameters A1 = +0.49, A2 = -0.0158.

49P/Arend-Rigaux
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2025 Apr. 10.63386 TT Rudenko
q 1.4313242 (2000.0) P Q
n 0.14616942 Peri. 332.93960 -0.05211416 -0.95676294
a 3.5691519 Node 118.79445 +0.96513195 -0.12186069
e 0.5989736 Incl. 19.05875 +0.25652374 +0.26411106
P 6.74
From 3588 observations 2004 June 24-2024 Sept. 9, mean residual 0".6.
Nongravitational parameters A1 = -0.03, A2 = -0.0005.

54P/de Vico-Swift-NEAT
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Sept. 3.94243 TT Rudenko
q 2.1718782 (2000.0) P Q
n 0.13378984 Peri. 1.98460 +0.99990272 -0.01377090
a 3.7860583 Node 358.79771 +0.01089390 +0.87027061
e 0.4263485 Incl. 6.06408 +0.00871056 +0.49238138
P 7.37
From 231 observations 1965 Aug. 4-2024 Sept. 10, mean residual 0".8.
Nongravitational parameters A1 = +0.70, A2 = +0.0691.

81P/Wild
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2022 Dec. 15.60937 TT Rudenko
q 1.5970151 (2000.0) P Q
n 0.15366146 Peri. 41.56825 -0.99843366 -0.03995645
a 3.4521746 Node 136.09432 +0.02321402 -0.93273600
e 0.5373887 Incl. 3.23739 +0.05090514 -0.35833927
P 6.41
From 2826 observations 2014 Oct. 18-2024 Sept. 7, mean residual 0".7.
Nongravitational parameters A1 = +0.26, A2 = +0.1917.

89P/Russell
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Mar. 26.60107 TT Rudenko
q 2.2218878 (2000.0) P Q
n 0.13567880 Peri. 250.40306 +0.35674955 +0.92392787
a 3.7508358 Node 41.34414 -0.75945866 +0.37295015
e 0.4076286 Incl. 12.07215 -0.54401499 +0.08523778
P 7.26
From 492 observations 1980 Sept. 28-2024 Sept. 10, mean residual 0".6.
Nongravitational parameters A1 = +0.85, A2 = -0.0349.

116P/Wild
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2022 July 16.60623 TT Rudenko
q 2.1953366 (2000.0) P Q
n 0.15136938 Peri. 173.18113 -0.96959070 +0.24369663
a 3.4869364 Node 20.96520 -0.22740169 -0.86315041
e 0.3704111 Incl. 3.60386 -0.09045631 -0.44224803
P 6.51
From 3066 observations 2014 Oct. 31-2024 Sept. 4, mean residual 0".8.

124P/Mrkos
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2026 June 23.71985 TT Bell
q 1.7330609 (2000.0) P Q
n 0.15895836 Peri. 185.14450 -0.99593024 +0.09012704
a 3.3750519 Node 0.03096 -0.05210414 -0.57321031
e 0.4865084 Incl. 31.42091 -0.07353993 -0.81443665
P 6.20
From 2975 observations 1991 Mar. 15-2024 Sept. 10, mean residual 0".7.
Nongravitational parameters A1 = -0.01, A2 = -0.0006.

125P/Spacewatch
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Mar. 7.27391 TT Rudenko
q 1.5266296 (2000.0) P Q
n 0.17810668 Peri. 87.13021 -0.48894843 +0.86878969
a 3.1285942 Node 153.14848 -0.85328718 -0.45770332
e 0.5120398 Incl. 9.98530 -0.18119166 -0.18897660
P 5.53
From 958 observations 2012 Dec. 8-2024 Sept. 7, mean residual 0".6.
Nongravitational parameters A1 = -0.02, A2 = +0.0097.

130P/McNaught-Hughes
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Apr. 14.92687 TT Rudenko
q 1.8231340 (2000.0) P Q
n 0.15847985 Peri. 246.14876 +0.71848191 +0.68841024
a 3.3818422 Node 70.17849 -0.59353524 +0.68130511
e 0.4609051 Incl. 6.06357 -0.36262883 +0.24882663
P 6.22
From 1542 observations 2004 Apr. 20-2024 Sept. 8, mean residual 0".6.
Nongravitational parameters A1 = +0.03, A2 = +0.0007.

136P/Mueller
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2025 Jan. 3.24807 TT Rudenko
q 2.9585077 (2000.0) P Q
n 0.11509462 Peri. 225.27128 +0.99240341 -0.05341653
a 4.1856802 Node 137.42179 +0.08291501 +0.95590021
e 0.2931835 Incl. 9.42739 -0.09088767 +0.28879312
P 8.56
From 375 observations 2016 Aug. 5-2024 Sept. 10, mean residual 0".6.
Nongravitational parameters A1 = -3.54, A2 = +0.3387.

146P/Shoemaker-LINEAR
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Aug. 5.44369 TT Rudenko
q 1.4195600 (2000.0) P Q
n 0.12193402 Peri. 317.07900 +0.93949598 -0.13423436
a 4.0276598 Node 53.37504 +0.30279263 +0.75566422
e 0.6475472 Incl. 23.12259 -0.16019962 +0.64105594
P 8.08
From 314 observations 2016 Oct. 10-2024 Sept. 10, mean residual 0".5.
Nongravitational parameters A1 = -0.35, A2 = +0.1512.

154P/Brewington
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 June 13.25569 TT Rudenko
q 1.5528243 (2000.0) P Q
n 0.09376396 Peri. 47.94323 +0.84742459 -0.52348104
a 4.7985727 Node 343.00620 +0.35176130 +0.67851385
e 0.6763987 Incl. 17.63414 +0.39766263 +0.51535090
P 10.5
From 2955 observations 2003 Feb. 1-2024 Sept. 9, mean residual 0".6.
Nongravitational parameters A1 = +4.22, A2 = -0.0219.

164P/Christensen
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2025 May 27.39232 TT Rudenko
q 1.6752390 (2000.0) P Q
n 0.14124563 Peri. 325.94310 +0.56234313 -0.77799854
a 3.6516238 Node 88.26943 +0.80731275 +0.44323675
e 0.5412345 Incl. 16.27726 +0.17893107 +0.44526336
P 6.98
From 1299 observations 2010 Oct. 7-2024 Sept. 3, mean residual 0".7.

190P/Mueller
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Dec. 24.12504 TT Rudenko
q 2.0195228 (2000.0) P Q
n 0.11341998 Peri. 50.52027 +0.89840184 -0.43889239
a 4.2267803 Node 335.50086 +0.39038721 +0.81449987
e 0.5222078 Incl. 2.17467 +0.20117644 +0.37942513
P 8.69
From 503 observations 1998 Sept. 14-2024 Sept. 9, mean residual 0".6.

192P/Shoemaker-Levy
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 May 24.54930 TT Rudenko
q 1.4643964 (2000.0) P Q
n 0.05995319 Peri. 313.08635 +0.94473515 -0.03334233
a 6.4653872 Node 51.61098 +0.23374120 +0.76604971
e 0.7735021 Incl. 24.58783 -0.22987074 +0.64191599
P 16.4
From 151 observations 2007 Oct. 12-2024 Sept. 3, mean residual 0".7.

208P/McMillan
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Aug. 23.96851 TT Rudenko
q 2.5286614 (2000.0) P Q
n 0.12145696 Peri. 310.69622 +0.97316097 +0.22556550
a 4.0381995 Node 36.33498 -0.18103833 +0.87269629
e 0.3738146 Incl. 4.41242 -0.14206638 +0.43303741
P 8.11
From 190 observations 2016 July 29-2024 Sept. 9, mean residual 0".7.

209P/LINEAR
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 July 14.49547 TT Rudenko
q 0.9644038 (2000.0) P Q
n 0.19367978 Peri. 152.49188 -0.78851760 +0.52352565
a 2.9585564 Node 62.76965 -0.60957978 -0.59569743
e 0.6740289 Incl. 21.28244 -0.08156277 -0.60915144
P 5.09
From 2250 observations 2013 Sept. 8-2024 Sept. 3, mean residual 0".4.

219P/LINEAR
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Feb. 14.06430 TT Rudenko
q 2.3551701 (2000.0) P Q
n 0.14143952 Peri. 107.69267 +0.91639731 +0.36889034
a 3.6482859 Node 230.95391 -0.39875102 +0.87513105
e 0.3544447 Incl. 11.53917 +0.03483677 +0.31315423
P 6.97
From 1142 observations 2002 June 5-2024 Sept. 9, mean residual 0".8.
Nongravitational parameters A1 = +0.88, A2 = -0.1103.

229P/Gibbs
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2025 Mar. 5.72591 TT Rudenko
q 2.4404295 (2000.0) P Q
n 0.12683812 Peri. 224.19843 +0.89988915 -0.40344936
a 3.9231614 Node 157.88349 +0.40648591 +0.91350497
e 0.3779431 Incl. 26.09681 -0.15801493 +0.05231909
P 7.77
From 315 observations 2001 Aug. 24-2024 Sept. 4, mean residual 1".0.

237P/LINEAR
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2023 May 14.81012 TT Rudenko
q 1.9898682 (2000.0) P Q
n 0.14966210 Peri. 25.40780 +0.00163959 +0.97546407
a 3.5134045 Node 245.35153 -0.95385261 -0.06458000
e 0.4336353 Incl. 14.01779 -0.30027073 +0.21047393
P 6.59
From 2328 observations 2002 June 18-2024 Sept. 5, mean residual 0".7.

240P/NEAT
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2025 Dec. 19.92760 TT Rudenko
q 2.1222135 (2000.0) P Q
n 0.12991003 Peri. 352.03981 +0.38031094 -0.84064745
a 3.8610692 Node 74.91633 +0.86902117 +0.18214352
e 0.4503560 Incl. 23.53712 +0.31648981 +0.51003489
P 7.59
From 2845 observations 2002 Oct. 5-2024 Sept. 4, mean residual 1".0.
Nongravitational parameters A1 = +1.15, A2 = +0.0678.

242P/Spahr
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Dec. 23.09861 TT Rudenko
q 3.9716130 (2000.0) P Q
n 0.07568683 Peri. 244.87786 +0.42027481 -0.90739193
a 5.5350620 Node 180.32000 +0.89643094 +0.41468183
e 0.2824628 Incl. 32.43581 -0.14064368 -0.06840231
P 13.0
From 549 observations 2011 July 20-2024 Sept. 8, mean residual 0".8.

253P/PANSTARRS
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Oct. 20.98367 TT Rudenko
q 2.0267889 (2000.0) P Q
n 0.15298488 Peri. 230.81746 +0.95117847 -0.30502492
a 3.4623453 Node 146.86492 +0.30303346 +0.89398873
e 0.4146196 Incl. 4.94412 +0.05856817 +0.32824372
P 6.44
From 475 observations 1998 Sept. 14-2024 Sept. 9, mean residual 0".6.
Nongravitational parameters A1 = -0.20, A2 = -0.0062.

276P/Vorobjov
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Dec. 10.81909 TT Rudenko
q 3.8986928 (2000.0) P Q
n 0.07971482 Peri. 199.26892 +0.64030796 -0.75653376
a 5.3469979 Node 211.34000 +0.73401691 +0.65363371
e 0.2708632 Incl. 14.80440 +0.22632916 +0.02048518
P 12.4
From 516 observations 2000 Dec. 19-2024 Sept. 10, mean residual 0".5.

280P/Larsen
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2023 Aug. 4.50850 TT Rudenko
q 2.6396328 (2000.0) P Q
n 0.10235412 Peri. 104.68791 -0.54300078 +0.82565312
a 4.5261870 Node 131.37556 -0.82736894 -0.49486100
e 0.4168087 Incl. 11.77441 -0.14356459 -0.27094190
P 9.63
From 189 observations 2004 Apr. 19-2023 Apr. 28, mean residual 0".8.

299P/Catalina-PANSTARRS
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Apr. 30.21647 TT Rudenko
q 3.1562766 (2000.0) P Q
n 0.10717632 Peri. 323.66242 -0.56023679 +0.80817425
a 4.3893831 Node 271.58064 -0.71070718 -0.58161317
e 0.2809293 Incl. 10.46869 -0.42547626 -0.09263100
P 9.20
From 810 observations 2005 Mar. 11-2024 Sept. 8, mean residual 0".7.

302P/Lemmon-PANSTARRS
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2025 Mar. 9.40240 TT Rudenko
q 3.2886364 (2000.0) P Q
n 0.11174193 Peri. 208.62839 +0.86674108 +0.49067324
a 4.2689914 Node 121.71426 -0.43522351 +0.83165512
e 0.2296456 Incl. 6.03526 -0.24359885 +0.25997986
P 8.82
From 339 observations 2007 Aug. 16-2024 Sept. 6, mean residual 0".6.

305P/Skiff
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Nov. 17.17428 TT Rudenko
q 1.4186021 (2000.0) P Q
n 0.09875418 Peri. 147.42578 +0.87710155 -0.44713997
a 4.6355265 Node 240.10630 +0.38586790 +0.87342298
e 0.6939718 Incl. 11.67131 +0.28600496 +0.19286822
P 9.98
From 641 observations 2004 Oct. 7-2024 Sept. 9, mean residual 0".8.

328P/LONEOS-Tucker
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 July 27.95883 TT Rudenko
q 1.8734056 (2000.0) P Q
n 0.11492501 Peri. 30.66499 +0.96956025 -0.22533470
a 4.1897973 Node 341.60535 +0.11244423 +0.75731028
e 0.5528649 Incl. 17.67272 +0.21750681 +0.61294813
P 8.58
From 573 observations 1998 Aug. 27-2024 Sept. 8, mean residual 0".9.
Nongravitational parameters A1 = -0.42, A2 = -0.0092.

338P/McNaught
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Aug. 3.30805 TT Rudenko
q 2.2879239 (2000.0) P Q
n 0.12826020 Peri. 4.60194 +0.96992818 -0.23221597
a 3.8941089 Node 9.79168 +0.20738498 +0.63170650
e 0.4124654 Incl. 25.38397 +0.12740011 +0.73960980
P 7.68
From 453 observations 2016 June 14-2024 Sept. 10, mean residual 0".8.
Nongravitational parameters A1 = -1.44, A2 = +0.1325.

345P/LINEAR
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Aug. 30.63397 TT Rudenko
q 3.1393961 (2000.0) P Q
n 0.12176478 Peri. 196.68273 +0.98807083 +0.15263193
a 4.0313911 Node 154.51070 -0.13530019 +0.92390209
e 0.2212623 Incl. 2.72804 -0.07355194 +0.35086809
P 8.09
From 156 observations 2008 Sept. 2-2024 Sept. 5, mean residual 0".7.

347P/PANSTARRS
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2023 July 19.52133 TT Rudenko
q 2.2093419 (2000.0) P Q
n 0.14410424 Peri. 98.21962 +0.97936677 +0.01674497
a 3.6031710 Node 260.99092 -0.08993176 +0.92855973
e 0.3868340 Incl. 11.76579 +0.18097794 +0.37080511
P 6.84
From 306 observations 2002 July 12-2023 Dec. 4, mean residual 0".5.

360P/WISE
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Oct. 3.76483 TT Rudenko
q 1.8516820 (2000.0) P Q
n 0.13865590 Peri. 354.28347 +0.99776288 +0.06502567
a 3.6969520 Node 2.17755 -0.03248299 +0.67447515
e 0.4991328 Incl. 24.10957 -0.05843020 +0.73542840
P 7.11
From 143 observations 2010 Aug. 6-2024 Sept. 9, mean residual 0".5.

376P/LONEOS
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2019 Sept. 14.29367 TT Rudenko
q 2.7990215 (2000.0) P Q
n 0.07135929 Peri. 285.40082 -0.52605096 +0.85032214
a 5.7566395 Node 312.85029 -0.77226245 -0.48496102
e 0.5137751 Incl. 1.16622 -0.35620372 -0.20436505
P 13.8
From 539 observations 2005 Apr. 2-2021 Sept. 4, mean residual 0".7.

384P/Kowalski
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Sept. 19.14320 TT Rudenko
q 1.1120825 (2000.0) P Q
n 0.19973015 Peri. 37.71351 +0.84836178 -0.52926183
a 2.8985021 Node 354.19853 +0.44964408 +0.73309628
e 0.6163251 Incl. 7.28317 +0.27946824 +0.42714372
P 4.93
From 667 observations 2014 Oct. 18-2024 Sept. 9, mean residual 0".6.

450P/LONEOS
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2027 Jan. 21.14383 TT Rudenko
q 5.4693699 (2000.0) P Q
n 0.04384955 Peri. 22.01121 -0.82989304 -0.53705898
a 7.9645141 Node 124.61918 +0.48059184 -0.82573776
e 0.3132827 Incl. 10.58330 +0.28338848 -0.17240882
P 22.5
From 569 observations 2003 Oct. 25-2024 Sept. 5, mean residual 0".7.

472P/NEAT-LINEAR
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 July 15.13437 TT Rudenko
q 3.3892646 (2000.0) P Q
n 0.04507353 Peri. 218.91288 +0.42962267 -0.89925725
a 7.8196679 Node 205.95371 +0.86833144 +0.43639938
e 0.5665718 Incl. 10.82897 +0.24784042 +0.02986599
P 21.9
From 595 observations 2002 Sept. 15-2024 Sept. 8, mean residual 0".7.