! titre      C/1998 P1 (Williams)                    
 ! date       04/10/98
 ! obstime      0.521000027656555     
 ! polar      D       
 ! freq          1667359030.00000     
 ! vit_debut    -8428.16113281250     
 ! delta_vit     140.469360351562     
 ! nb cycles     40.00000    
 ! ah depart            -8
 ! RA  offset   0.000000000000000E+000
 ! dec offset   0.000000000000000E+000
 ! RA            48668.5976562500     
 ! dec          -30.5721931457520     
  -8428.161     -4.5910217E-02
  -8287.691      7.6306254E-02
  -8147.222     -1.2778098E-02
  -8006.753      8.8273445E-03
  -7866.284      5.2402701E-02
  -7725.814      8.0578245E-02
  -7585.345      1.5473807E-04
  -7444.876     -2.2102874E-02
  -7304.407      3.3801597E-02
  -7163.938     -2.5679493E-02
  -7023.468      2.4392532E-02
  -6882.999      0.1232877    
  -6742.530      8.9181110E-04
  -6602.061     -0.1719138    
  -6461.591     -1.6778836E-02
  -6321.122      2.2382611E-02
  -6180.653      2.9927209E-02
  -6040.184      3.1334343E-03
  -5899.714      4.0821772E-02
  -5759.245     -0.1467318    
  -5618.776      5.9991155E-02
  -5478.307     -7.6302290E-02
  -5337.837      4.0210571E-02
  -5197.368     -0.1139571    
  -5056.899      8.7192224E-04
  -4916.430      8.1707668E-03
  -4775.960      5.7520241E-02
  -4635.491     -0.1034929    
  -4495.022     -3.0951422E-02
  -4354.553      1.7264698E-03
  -4214.083      3.0487303E-02
  -4073.614     -0.1410709    
  -3933.145      9.4982199E-02
  -3792.676     -5.4579362E-02
  -3652.207     -5.8181278E-02
  -3511.737     -4.4828508E-02
  -3371.268      4.6846271E-02
  -3230.799     -0.1290028    
  -3090.330      2.0802848E-02
  -2949.860     -5.0174110E-02
  -2809.391      3.7167292E-02
  -2668.922     -9.2582265E-03
  -2528.453      0.1214944    
  -2387.983     -4.7076333E-02
  -2247.514     -0.1296366    
  -2107.045     -2.3862677E-02
  -1966.576      8.3011687E-02
  -1826.106     -6.0175925E-02
  -1685.637      0.1080700    
  -1545.167      7.3964797E-02
  -1404.698      2.8313577E-02
  -1264.229      0.1053332    
  -1123.759      0.1007016    
  -983.2900      2.3493337E-02
  -842.8207      7.5885043E-02
  -702.3513      4.4779282E-02
  -561.8820      7.7434830E-02
  -421.4126      0.1354860    
  -280.9432     -1.1525288E-02
  -140.4739     -2.9441074E-02
 -4.5166016E-03 -6.8400159E-02
   140.4648      5.2583460E-02
   280.9342      3.0503459E-03
   421.4036     -5.1269110E-02
   561.8729      1.2500686E-02
   702.3423     -0.1410114    
   842.8116      7.9457127E-02
   983.2810     -4.4698138E-02
   1123.750     -3.5953738E-02
   1264.220      3.7684027E-02
   1404.689     -3.7653770E-02
   1545.158     -1.9978976E-03
   1685.628     -8.1514798E-02
   1826.097     -0.1373648    
   1966.567     -2.3678858E-02
   2107.036      2.3021735E-03
   2247.505      5.7223920E-02
   2387.975      0.1058726    
   2528.444      3.2851379E-03
   2668.913      4.2578436E-02
   2809.382     -2.5703304E-02
   2949.852      6.6205554E-02
   3090.321      3.5735216E-02
   3230.790      7.0916526E-03
   3371.259     -1.6880313E-02
   3511.729      1.0476236E-02
   3652.198     -1.3835265E-02
   3792.667      2.6742907E-02
   3933.136     -9.0329982E-02
   4073.605      3.7229810E-02
   4214.075      0.1235934    
   4354.544     -5.3215105E-02
   4495.013      4.0633071E-02
   4635.482     -2.3497450E-03
   4775.952      3.0820629E-02
   4916.421      0.1341661    
   5056.890     -4.0294338E-02
   5197.359     -2.7050713E-02
   5337.829     -4.5764185E-02
   5478.298      5.1324625E-02
   5618.767      6.7890562E-02
   5759.236     -7.6261275E-02
   5899.706      3.8861267E-03
   6040.175     -9.6136287E-02
   6180.644     -6.7948349E-02
   6321.113     -5.9696276E-02
   6461.583      0.1228943    
   6602.052     -4.0780760E-02
   6742.521      0.1175370    
   6882.990      4.0832799E-02
   7023.459     -1.9804565E-02
   7163.929     -4.2526568E-03
   7304.398      2.5605405E-02
   7444.867     -0.1712632    
   7585.336      1.2969258E-02
   7725.806      9.8518349E-02
   7866.275      0.1460337    
   8006.744     -0.1350829    
   8147.213      3.5459101E-02
   8287.683     -3.3380985E-02