! titre      C/1998 P1 (Williams)                    
 ! date       30/09/98
 ! obstime      0.532500028610229     
 ! polar      D       
 ! freq          1667359030.00000     
 ! vit_debut    -8428.16113281250     
 ! delta_vit     140.469360351562     
 ! nb cycles     26.00000    
 ! ah depart            -4
 ! RA  offset   0.000000000000000E+000
 ! dec offset   0.000000000000000E+000
 ! RA            48716.3984375000     
 ! dec          -31.7011966705322     
  -8428.161      4.6512771E-02
  -8287.691      3.6512483E-02
  -8147.222     -6.8662666E-02
  -8006.753      9.5202588E-02
  -7866.284      6.5683305E-02
  -7725.814      7.4664927E-03
  -7585.345     -1.0674779E-02
  -7444.876     -3.7342172E-02
  -7304.407     -0.1015334    
  -7163.938     -5.5549812E-02
  -7023.468     -0.1125586    
  -6882.999     -0.1346775    
  -6742.530     -0.1718629    
  -6602.061     -2.0983938E-02
  -6461.591      0.1340339    
  -6321.122      5.6419868E-02
  -6180.653      0.1191327    
  -6040.184      2.0905204E-02
  -5899.714     -8.5479014E-02
  -5759.245      0.1322408    
  -5618.776     -2.9684629E-02
  -5478.307      5.5726361E-02
  -5337.837     -0.1326741    
  -5197.368      7.6450400E-02
  -5056.899     -4.3913588E-02
  -4916.430      1.4571503E-02
  -4775.960      5.3020451E-02
  -4635.491     -8.3761439E-02
  -4495.022      4.4603270E-02
  -4354.553      0.1942932    
  -4214.083      4.6856791E-02
  -4073.614      1.6840316E-02
  -3933.145      8.7281629E-02
  -3792.676      0.1543937    
  -3652.207     -2.9004568E-02
  -3511.737     -2.5785891E-02
  -3371.268      1.9242296E-02
  -3230.799     -0.1242440    
  -3090.330     -0.1670504    
  -2949.860      4.0022310E-02
  -2809.391      0.1340363    
  -2668.922     -8.2371518E-02
  -2528.453     -9.3921699E-02
  -2387.983      1.0303392E-02
  -2247.514     -0.2005839    
  -2107.045      0.1771651    
  -1966.576      1.7732602E-02
  -1826.106     -4.4674592E-04
  -1685.637      6.9241442E-02
  -1545.167     -1.8247841E-02
  -1404.698      2.9175164E-02
  -1264.229     -2.3670051E-02
  -1123.759     -0.1424610    
  -983.2900     -0.1212581    
  -842.8207     -0.1638366    
  -702.3513     -0.1149294    
  -561.8820      0.1110713    
  -421.4126     -9.2643343E-02
  -280.9432     -0.1294285    
  -140.4739     -0.1312660    
 -4.5166016E-03 -0.1390554    
   140.4648     -0.2048324    
   280.9342     -0.1314711    
   421.4036     -3.2894596E-02
   561.8729     -5.8423478E-02
   702.3423     -4.0507440E-02
   842.8116      2.1576224E-02
   983.2810     -9.4309494E-02
   1123.750     -0.1543999    
   1264.220     -9.8382197E-03
   1404.689     -0.1159925    
   1545.158     -7.2932981E-02
   1685.628      2.0332357E-02
   1826.097      8.9340890E-03
   1966.567      0.1680407    
   2107.036      1.1477945E-02
   2247.505     -5.4084924E-03
   2387.975     -1.2475272E-02
   2528.444      0.2284583    
   2668.913     -5.5569921E-02
   2809.382     -9.7300522E-02
   2949.852     -2.4615554E-02
   3090.321      9.9597588E-02
   3230.790      8.6273536E-02
   3371.259      3.5451353E-02
   3511.729     -2.9957745E-02
   3652.198     -6.4202376E-02
   3792.667     -1.8486328E-02
   3933.136     -7.3936917E-02
   4073.605      4.6417911E-02
   4214.075     -2.3104152E-02
   4354.544     -0.1128813    
   4495.013      0.1543936    
   4635.482     -8.8327983E-03
   4775.952     -0.1023027    
   4916.421     -0.1534092    
   5056.890      5.6659076E-02
   5197.359      8.1180878E-02
   5337.829      0.1009489    
   5478.298      5.2915676E-03
   5618.767     -0.1060231    
   5759.236      0.1106746    
   5899.706      4.0689588E-02
   6040.175     -1.9213965E-02
   6180.644      0.1069538    
   6321.113      6.7432490E-03
   6461.583      8.7902732E-02
   6602.052     -0.1011135    
   6742.521     -2.4190061E-03
   6882.990      0.1003449    
   7023.459      0.1009855    
   7163.929     -1.9916281E-02
   7304.398     -0.1039238    
   7444.867      5.2894816E-02
   7585.336     -8.2068644E-02
   7725.806      3.8387153E-02
   7866.275     -7.9376675E-02
   8006.744     -7.4778482E-02
   8147.213      6.2790856E-02
   8287.683     -0.1574858