GRB19990421 
16:32:03.618 
     13.1200000    487.5000000
     15.6200000    437.5000000
     18.1200000    381.2500000
     20.6200000    362.5000000
     23.1200000    331.2500000
     25.6200000    231.2500000
     28.1200000    237.5000000
     30.6200000    131.2500000
     33.1200000    181.2500000
     35.6200000    112.5000000
     38.1200000    143.7500000
     40.6200000    106.2500000
     43.1200000     62.5000000
     45.6200000     68.7500000
     48.1200000     68.7500000
     50.6200000     62.5000000
     53.1200000     75.0000000
     55.6200000     37.5000000
     60.6200000     21.8750000
     65.6200000     53.1250000
     70.6200000     34.3750000
     75.6200000     15.6250000
     80.6200000     15.6250000
     85.6200000     15.6250000
     90.6200000      6.2500000
     95.6200000      9.3750000
    100.6200000     10.4166667
    108.1200000      6.2500000
    115.6200000      6.2500000
    123.1200000      4.1666667
    130.6200000      2.0833333
    138.1200000      0.0000000
    145.6200000      4.1666667
    153.1200000      8.3333333
    160.6200000      1.5625000
    170.6200000      4.6875000
    180.6200000      0.0000000
    190.6200000      3.1250000
    200.6200000      1.0416667
    215.6200000      2.0833333
    230.6200000      7.2916667
    245.6200000      4.1666667
    260.6200000      0.0000000
    265.6200000      2.5000000
    290.6200000      0.0000000
    310.6200000      1.5625000
    330.6200000      0.7812500
    350.6200000      1.5625000
    370.6200000      0.7812500
    390.6200000      0.6250000
    415.6200000      0.0000000
    440.6200000      0.0000000
    465.6200000      0.0000000
    490.6200000      0.0000000
    515.6200000      0.6250000
    540.6200000      2.5000000
    565.6200000      0.6250000
    590.6200000      0.0000000
    615.6200000      0.6250000
    640.6200000      1.0416667
    670.6200000      0.0000000
    700.6200000      0.5208333
    730.6200000      0.5208333