88P/Howell

Last updated 2018 Dec. 2

+ Orbit O-C

88P/Howell
From 2289 observations 2003 Dec. 31-2016 Feb. 28, mean residual 0".74.
  Nongravitational parameters A1 = +0.76, A2 = -0.0274.

  Epoch  = 2015 Apr. 8.0 TT              JDT = 2457120.5
      T  = 2015 Apr. 6.2315942895 TT     +/- 0.0001052776      -0.0000000013
   Peri. = 235.9175422416                +/- 0.0000828852      -0.0000000017
   Node  =  56.6988667186 (2000.0)       +/- 0.0000762659       0.0000000016
   Incl. =   4.3825826474                +/- 0.0000088091      -0.0000000001
      q  =   1.3585942449 AU             +/- 0.0000002200       0.0000000000
      e  =   0.5630183118                +/- 0.0000000505      -0.0000000000
     A1  =   0.7561462933                +/- 0.0033808139      -0.0000000322
     A2  =  -0.0273820980                +/- 0.0001064341       0.0000000040
      a  =   3.1090415952 AU             +/- 0.0000001990
      n  =   0.1797894796                +/- 0.0000000173
      P  =   5.4820096871 years          +/- 0.0000005263

  88P             Howell                     *18970507.34582  2.0034847 0.4222147 182.24893  98.09189  10.52573 18970426  111 19550522 19940211  6.5 20.0 h3E2 0.8  x 2  +0.10 -0.0012         Kinoshita  P    6.46   3.4675244                 
  88P             Howell                     *19031024.32368  1.9981322 0.4230723 182.45090  98.05133  10.53103 19031013  111 19550522 19940211  6.5 20.0 h3E2 0.8  x 2  +0.10 -0.0012         Kinoshita  P    6.45   3.4634012                 
    Jupiter  0.1941     19070119.8
  88P             Howell                     *19100907.85901  1.8444315 0.4618393 202.97430  85.99294   6.58773 19100906  111 19550522 19940211  6.5 20.0 h3E2 0.8  x 2  +0.10 -0.0012         Kinoshita  P    6.34   3.4272877                 
  88P             Howell                     *19170115.36594  1.8444014 0.4619054 203.15920  85.93787   6.58524 19170112  111 19550522 19940211  6.5 20.0 h3E2 0.8  x 2  +0.10 -0.0012         Kinoshita  P    6.35   3.4276525                 
  88P             Howell                     *19230611.42661  1.8955658 0.4522344 203.63457  85.60730   6.53540 19230630  111 19550522 19940211  6.5 20.0 h3E2 0.8  x 2  +0.10 -0.0012         Kinoshita  P    6.44   3.4605423                 
  88P             Howell                     *19291122.78030  1.9025131 0.4511074 203.75459  85.56067   6.52951 19291105  111 19550522 19940211  6.5 20.0 h3E2 0.8  x 2  +0.10 -0.0012         Kinoshita  P    6.45   3.4660934                 
  88P             Howell                     *19360503.88870  1.9078745 0.4500557 203.54651  85.53949   6.52693 19360422  111 19550522 19940211  6.5 20.0 h3E2 0.8  x 2  +0.10 -0.0012         Kinoshita  P    6.46   3.4692141                 
  88P             Howell                     *19421022.62879  1.9183056 0.4482501 203.52848  85.51531   6.51967 19421008  111 19550522 19940211  6.5 20.0 h3E2 0.8  x 2  +0.10 -0.0012         Kinoshita  P    6.48   3.4767668                 
  88P             Howell                     *19490412.57497  1.9121667 0.4495104 203.47563  85.50164   6.51981 19490325  111 19550522 19940211  6.5 20.0 h3E2 0.8  x 2  +0.10 -0.0012         Kinoshita  P    6.47   3.4735749                 
  88P             Howell                      19550929.99010  1.9162084 0.4486671 203.32529  85.49217   6.51567 19550910  111 19550522 19940211  6.5 20.0 h3E2 0.8  1 2  +0.10 -0.0012         Kinoshita  P    6.48   3.4755925                 
  88P             Howell                     *19620321.19882  1.9071222 0.4504477 203.37285  85.47687   6.51973 19620406  111 19550522 19940211  6.5 20.0 h3E2 0.8  x 2  +0.10 -0.0012         Kinoshita  P    6.46   3.4703198                 
  88P             Howell                     *19680825.00579  1.8818457 0.4547389 203.39182  85.32287   6.52250 19680812  111 19550522 19940211  6.5 20.0 h3E2 0.8  x 2  +0.10 -0.0012         Kinoshita  P    6.41   3.4512746                 
  88P             Howell                     *19750123.31344  1.8746617 0.4560498 203.53698  85.28451   6.52523 19750128  111 19550522 19940211  6.5 20.0 h3E2 0.8  x 2  +0.10 -0.0012         Kinoshita  P    6.40   3.4463848                 
    Jupiter  0.5816     19781013.8
  88P/1981 Q1     Howell                      19810504.36040  1.6151385 0.5075364 214.65641  75.99315   5.56908 19810426  111 19550522 19940211  6.5 20.0 h3E2 0.8  2 2  +0.10 -0.0012         Kinoshita  P    5.94   3.2797115                 
  88P/1987 E1     Howell                      19870414.53965  1.6121000 0.5081133 214.80578  75.94661   5.56845 19870326  111 19550522 19940211  6.5 20.0 h3E2 0.8  3 2  +0.10 -0.0012         Kinoshita  P    5.93   3.2773806                 
    Jupiter  0.5274     19900822.5
  88P             Howell                      19930226.09068  1.4091091 0.5520644 234.77352  57.72427   4.39934 19930222  264 19870727 19991208  6.5 20.0 h3E3 0.8  4 2  +0.40 -0.0505         Kinoshita  P    5.58   3.1457851                 
  88P             Howell                      19980927.18706  1.4061295 0.5526726 234.91138  57.66566   4.39839 19980924  264 19870727 19991208  6.5 20.0 h3E3 0.8  5 2  +0.40 -0.0505         Kinoshita  P    5.57   3.1434016                 
  88P             Howell                      20040412.56015  1.3675177 0.5611546 235.84587  56.81974   4.38259 20040425  785 19971231 20090502  6.5 20.0 h3E2 0.7  6 2  +0.27 -0.0580         Kinoshita  P    5.50   3.1161718                 
  88P             Howell                      20091012.46447  1.3634874 0.5619944 235.95865  56.75844   4.38195 20091016 2289 20031231 20160228  7.0 15.0 h3E2 0.7  7 2  +0.76 -0.0274         Kinoshita  P    5.49   3.1129454                 
  88P             Howell                      20150406.23159  1.3585942 0.5630183 235.91754  56.69887   4.38258 20150408 2289 20031231 20160228  7.0 15.0 h3E2 0.7  8 2  +0.76 -0.0274         Kinoshita  P    5.48   3.1090416                 
  88P             Howell                     *20200926.55311  1.3531124 0.5643388 235.91173  56.68361   4.38350 20200928 2289 20031231 20160228  8.5 20.0 h3E2 0.7  x 2  +0.76 -0.0274         Kinoshita  P    5.47   3.1058826                 
  88P             Howell                     *20260318.62401  1.3578382 0.5632703 235.86502  56.66870   4.38153 20260321 2289 20031231 20160228  8.5 20.0 h3E2 0.7  x 2  +0.76 -0.0274         Kinoshita  P    5.48   3.1091039                 
  88P             Howell                     *20310907.98666  1.3549114 0.5640348 235.75190  56.67090   4.38199 20310911 2289 20031231 20160228  8.5 20.0 h3E2 0.7  x 2  +0.76 -0.0274         Kinoshita  P    5.48   3.1078432                 
  88P             Howell                     *20370303.63846  1.3614005 0.5625709 235.88216  56.57311   4.37532 20370303 2289 20031231 20160228  8.5 20.0 h3E2 0.7  x 2  +0.76 -0.0274         Kinoshita  P    5.49   3.1122771                 
  88P             Howell                     *20420828.80817  1.3659880 0.5614962 235.77943  56.54533   4.37225 20420824 2289 20031231 20160228  8.5 20.0 h3E2 0.7  x 2  +0.76 -0.0274         Kinoshita  P    5.50   3.1151109                 
  88P             Howell                     *20480301.08901  1.3705062 0.5605150 235.88625  56.48492   4.36830 20480214 2289 20031231 20160228  8.5 20.0 h3E2 0.7  x 2  +0.76 -0.0274         Kinoshita  P    5.51   3.1184365                 
  88P             Howell                     *20530912.70824  1.3976467 0.5544029 236.37409  56.06643   4.33765 20530915 2289 20031231 20160228  8.5 20.0 h3E2 0.7  x 2  +0.76 -0.0274         Kinoshita  P    5.55   3.1365703                 
  88P             Howell                     *20590406.47549  1.3995990 0.5539114 236.51262  55.99774   4.33473 20590417 2289 20031231 20160228  8.5 20.0 h3E2 0.7  x 2  +0.76 -0.0274         Kinoshita  P    5.56   3.1374911                 
    Jupiter  0.7056     20610512.3
  88P             Howell                     *20650126.96551  1.5485605 0.5229352 248.97555  45.54439   3.75148 20650204 2289 20031231 20160228  8.5 20.0 h3E2 0.7  x 2  +0.76 -0.0274         Kinoshita  P    5.85   3.2460167                 
  88P             Howell                     *20701205.97471  1.5491060 0.5227387 249.14278  45.46560   3.74971 20701125 2289 20031231 20160228  8.5 20.0 h3E2 0.7  x 2  +0.76 -0.0274         Kinoshita  P    5.85   3.2458232                 
    Jupiter  0.4820     20730418.3
  88P             Howell                     *20770322.62859  1.8059478 0.4733444 289.60624   8.50054   3.14833 20770402 2289 20031231 20160228  8.5 20.0 h3E2 0.7  x 2  +0.76 -0.0274         Kinoshita  P    6.35   3.4290867                 
  88P             Howell                     *20830802.46826  1.8087419 0.4727912 289.80598   8.42018   3.14690 20830809 2289 20031231 20160228  8.5 20.0 h3E2 0.7  x 2  +0.76 -0.0274         Kinoshita  P    6.35   3.4307885                 
  88P             Howell                     *20891222.02188  1.8458516 0.4656788 290.15274   8.05138   3.13437 20891215 2289 20031231 20160228  8.5 20.0 h3E2 0.7  x 2  +0.76 -0.0274         Kinoshita  P    6.42   3.4545729                 
  88P             Howell                     *20960530.19873  1.8531513 0.4645102 290.40115   7.92709   3.13241 20960601 2289 20031231 20160228  8.5 20.0 h3E2 0.7  x 2  +0.76 -0.0274         Kinoshita  P    6.44   3.4606659                 
  88P             Howell                     *21021103.94036  1.8563560 0.4638628 290.19125   7.89310   3.13023 21021118 2289 20031231 20160228  8.5 20.0 h3E2 0.7  x 2  +0.76 -0.0274         Kinoshita  P    6.44   3.4624644                 
		
[Numbered short periodic comets index] [Main index] inserted by FC2 system