161P/Hartley-IRAS

+ Orbit O-C

161P/2004 V2 (Hartley-IRAS)
From 95 observations 1984 Jan. 9-2005 June 19, mean residual 0".76.

  Epoch  = 2005 July 9.0 TT              JDT = 2453560.5
      T  = 2005 June 20.8443652826 TT    +/- 0.0001939157       0.0000000002
   Peri. =  47.0755457144                +/- 0.0000757085       0.0000000002
   Node  =   1.3973800983 (2000.0)       +/- 0.0000561034       0.0000000003
   Incl. =  95.6980621667                +/- 0.0000407557      -0.0000000002
      q  =   1.2751408046 AU             +/- 0.0000014584      -0.0000000000
      e  =   0.8350816875                +/- 0.0000001874       0.0000000000
      a  =   7.7319539894 AU             +/- 0.0000016121
      n  =   0.0458426994                +/- 0.0000000143
      P  =  21.4997738396 years          +/- 0.0000067242

 161P             Hartley-IRAS               *18970812.19200  1.3386461 0.8318916  48.90875   1.40065  94.69403 18970824   95 19840109 20050619 10.0 15.0 h3E2 0.8  x                          Kinoshita  P   22.47   7.9629949                 
 161P             Hartley-IRAS               *19200224.21097  1.3293458 0.8335047  48.99768   1.41733  94.62655 19200206   95 19840109 20050619 10.0 15.0 h3E2 0.8  x                          Kinoshita  P   22.56   7.9842861                 
    Jupiter  0.3758 AU  19210829.0 TT
 161P             Hartley-IRAS               *19410627.07689  1.2791480 0.8340625  47.55337   1.53218  95.81326 19410615   95 19840109 20050619 10.0 15.0 h3E2 0.8  x                          Kinoshita  P   21.40   7.7086137                 
    Earth    0.8406     19620826.3
 161P             Hartley-IRAS               *19620910.90040  1.2820057 0.8332810  47.28374   1.61555  95.87431 19620913   95 19840109 20050619 10.0 15.0 h3E2 0.8  x                          Kinoshita  P   21.32   7.6896179                 
    Earth    0.9099     19831017.3
 161P/1983 V1     Hartley-IRAS                19840108.70607  1.2824311 0.8338313  47.11163   1.49876  95.73181 19840121   95 19840109 20050619 10.0 15.0 h3E2 0.8  1                          Kinoshita  P   21.44   7.7176441                 
 161P/2004 V2     Hartley-IRAS                20050620.84437  1.2751408 0.8350817  47.07555   1.39738  95.69806 20050709   95 19840109 20050619 10.0 15.0 h3E2 0.8  2                          Kinoshita  P   21.50   7.7319540                 
    Earth    0.5054     20261002.3
 161P             Hartley-IRAS               *20261127.50942  1.2651633 0.8361993  47.06857   1.47494  95.79218 20261116   95 19840109 20050619 10.0 15.0 h3E2 0.8  x                          Kinoshita  P   21.47   7.7237942                 
    Jupiter  0.3960     20280603.0
 161P             Hartley-IRAS               *20470413.02707  1.2284387 0.8358215  45.69797   1.51435  96.89937 20470331   95 19840109 20050619 10.0 15.0 h3E2 0.8  x                          Kinoshita  P   20.47   7.4823345                 
 161P             Hartley-IRAS               *20670825.56134  1.2268698 0.8360667  45.49303   1.46366  96.87497 20670813   95 19840109 20050619 10.0 15.0 h3E2 0.8  x                          Kinoshita  P   20.47   7.4839589                 
 161P             Hartley-IRAS               *20880224.68551  1.2192804 0.8374589  45.45576   1.41803  96.81990 20880315   95 19840109 20050619 10.0 15.0 h3E2 0.8  x                          Kinoshita  P   20.55   7.5013664                 
 161P             Hartley-IRAS               *21080902.44372  1.2158169 0.8380042  45.46962   1.51170  96.80239 21080907   95 19840109 20050619 10.0 15.0 h3E2 0.8  x                          Kinoshita  P   20.56   7.5052367