! titre      C/1998 P1 (Williams)                    
 ! date       18/09/98
 ! obstime      0.567700028419495     
 ! polar      D       
 ! freq          1667359030.00000     
 ! vit_debut    -8428.16113281250     
 ! delta_vit     140.469360351562     
 ! nb cycles     30.00000    
 ! ah depart             1
 ! RA  offset   0.000000000000000E+000
 ! dec offset   0.000000000000000E+000
 ! RA            48923.5976562500     
 ! dec          -35.7099456787109     
  -8428.161      7.6627590E-02
  -8287.691     -6.3591711E-02
  -8147.222      0.1558655    
  -8006.753     -0.1198617    
  -7866.284     -7.8763790E-02
  -7725.814     -1.8689448E-02
  -7585.345     -1.0645910E-02
  -7444.876     -3.9048553E-02
  -7304.407      0.1326569    
  -7163.938      7.6705562E-03
  -7023.468      0.1069871    
  -6882.999      8.8544525E-03
  -6742.530     -0.1593254    
  -6602.061      9.1490932E-02
  -6461.591      1.7601633E-02
  -6321.122     -7.7291049E-02
  -6180.653     -0.1388219    
  -6040.184      0.1543642    
  -5899.714      5.5477649E-02
  -5759.245     -4.8271514E-02
  -5618.776     -0.1180764    
  -5478.307     -2.1588029E-02
  -5337.837      7.8592092E-02
  -5197.368     -2.9557679E-02
  -5056.899      0.2244873    
  -4916.430     -0.2081504    
  -4775.960      0.1118067    
  -4635.491      2.8232977E-02
  -4495.022      8.9700617E-02
  -4354.553     -2.5808653E-02
  -4214.083      5.4973572E-02
  -4073.614      4.1751470E-02
  -3933.145      2.3227016E-02
  -3792.676     -4.7373652E-02
  -3652.207     -3.0921048E-02
  -3511.737      0.1034381    
  -3371.268      0.2221498    
  -3230.799     -0.1056171    
  -3090.330     -8.9836391E-03
  -2949.860      0.1013654    
  -2809.391     -1.4746186E-02
  -2668.922      3.6492632E-03
  -2528.453      6.8772599E-02
  -2387.983     -4.2811885E-02
  -2247.514     -2.1042900E-02
  -2107.045      3.9057553E-02
  -1966.576     -6.2997907E-02
  -1826.106     -4.6564094E-03
  -1685.637     -2.4265381E-02
  -1545.167     -1.6711511E-02
  -1404.698     -0.1248539    
  -1264.229     -7.4893720E-02
  -1123.759      0.1438647    
  -983.2900      7.5822465E-02
  -842.8207      7.9392634E-02
  -702.3513      0.1511760    
  -561.8820     -5.0170127E-02
  -421.4126     -6.2495533E-02
  -280.9432      0.1048261    
  -140.4739     -1.7132781E-02
 -4.5166016E-03 -9.6251313E-03
   140.4648     -4.8872340E-03
   280.9342      6.4928276E-03
   421.4036     -0.2117519    
   561.8729      1.0195197E-02
   702.3423      5.0395038E-02
   842.8116     -2.3811836E-02
   983.2810      4.0764879E-02
   1123.750     -0.1110753    
   1264.220      0.1679702    
   1404.689     -6.2291313E-02
   1545.158     -5.5992934E-03
   1685.628      3.1860609E-02
   1826.097      2.0650769E-02
   1966.567     -0.1186100    
   2107.036     -2.5761090E-02
   2247.505      7.4328773E-02
   2387.975     -1.3986101E-02
   2528.444      7.7114910E-02
   2668.913      0.1593446    
   2809.382      0.1286157    
   2949.852      5.0544489E-02
   3090.321     -3.7316427E-02
   3230.790      4.3779295E-02
   3371.259      7.1248360E-02
   3511.729      6.2962868E-03
   3652.198      8.7212110E-03
   3792.667      8.9735679E-02
   3933.136      2.5238505E-02
   4073.605     -5.6272622E-02
   4214.075      0.1801334    
   4354.544      3.2076087E-02
   4495.013     -7.6371618E-02
   4635.482      8.2577594E-02
   4775.952     -0.1761429    
   4916.421     -0.2348868    
   5056.890     -0.1244559    
   5197.359     -0.1439074    
   5337.829      0.1080372    
   5478.298      0.1384652    
   5618.767     -7.5680107E-02
   5759.236     -2.2994530E-04
   5899.706      5.8729541E-02
   6040.175      0.1109873    
   6180.644     -8.3767049E-02
   6321.113     -7.7022605E-02
   6461.583      6.6919208E-02
   6602.052     -0.1444302    
   6742.521      0.2367255    
   6882.990      4.9162287E-02
   7023.459     -4.6787608E-02
   7163.929      6.6911407E-02
   7304.398      4.5839854E-02
   7444.867     -5.8322497E-02
   7585.336     -0.1238386    
   7725.806      1.1395427E-02
   7866.275      0.1200324    
   8006.744      0.1716160    
   8147.213      9.4394855E-02
   8287.683     -0.1343227